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the Veritest 2250 manual - Gas & Environmental Services Ltd

1. 45 MARVR2250 If a contact voltage U LOOP 05 06 01 higher than the selected limit UL is detected the instrument O interrupts the test and a emits a long sound FRO 50 0HZ signal and displays a VP N 1V Vp PE 0V Message Ut the screen similar to this instrument cannot detect an efficient protection Rack 50V circuit FUNC UL Should the instrument detect an extremely high earth resistance suggesting that there is a no earth protection a n screen similar to this is FRO 50 0HZ displayed VP N 231V Vp PE 40V Message NO PE the Please check the instrument cannot detect efficiency of PE A efficient protection conductor and earth P PE sov circuit installation FUNC Z2Q UL f the instrument gets overheated tests cannot be carried out and the message alongside is A displayed Wait until the screen reverts to the FRQ 50 OHZ neers f VP N 231V Vp PE 40V initial display in order to N N Message HOT the proceed with instrument has overheated measurements P P FUNC Z2Q MARVR2250 Using the O mode if a Phase to Phase voltage is lower than 100V the instrument displays a screen similar to this ee hese ees voltage is lower than 100V r CY PHASE ROTATION FUNC Using the mo
2. WARNING The automatic check of the RCD causes tripping of the RCD itself Therefore check that all devices connected downstream of the RCD under test are not damaged by power off It is advisable to disconnect all the loads connected downstream of the RCD as they could add leakage currents to the result so making the test results void vAY lt a gt Turn the switch to the RCD position The F1 key selects one of the following measuring modes which can be shown cyclically when pressing the key Mode AUTO the instrument performs the test automatically with a leakage current equal to half once and five times the value of the rated current set Recommended test Mode x Y the instrument performs the test with a leakage current equal to half the value of the rated current set Mode x 1 the instrument performs the test with a leakage current equal to the value of the rated current set Mode x 2 the instrument performs the test with a leakage current equal to twice the value of the rated current set Mode x 5 the instrument performs the test with a leakage current equal to five times the value of the rated current Mode ail the instrument performs the test with a steadily increasing leakage current Use this test to measure the tripping current Mode Ra the instrument performs the test with a leakage current equal to half the value of the selected rated current and calculates the cont
3. WARNING The maximum voltage between B1 and B4 inputs is 600 V CATII 350V NM phase earth or 600V CATIII 300 V phase to earth Do not measure voltages exceeding the limits prescribed by this manual Should you exceed the voltage limits you could damage the instrument and or its components and endanger your safety The instrument is a single phase device To analyse a three phase system it is necessary to repeat the single phase analysis described above for each phase my Cab Y p d H AAA Instrument connection in a three phase system The Three Phase power values are given by Total Active Power Pt P1 P2 P3 Total Reactive Power Qt Q1 Q2 Q3 Total Apparent Power St v Pt Qt 84 MARVR2250 8 SAVING RESULTS The SAVE button can be used to store the displayed results related to the rotary switch position Y For SAFETY TEST and for AUX rotary switch position pressing this key will store the displayed result generating a record in the SAFETY TEST MEMORY see paragraph 10 1 Y ANALYZER rotary switch position pressing this key will store the displayed result generating an Smp record in the ANALYZER MEMORY see paragraph 10 2 Please note that saving results is different from recording 8 1 SAVING SAFETY TEST RESULTS After a SAFETY TEST function LOWQ MQ RCD LOOP Phase sequence EARTH or during a real time measurement in AUX position the user can press
4. 3 Reading 2 digits e LOOP P P P N LINE IMPEDANCE MEASUREMENT Phase Phase Phase Neutral Range Q Resolution Q Accuracy 0 01 9 99 0 01 SE 10 0 199 9 0 1 5 Reading 3 digits 0 1 MQ on range 0 0 199 9 mQ with IMP57 Peak value of the Test current 127V 3 65A 230V 6 64A 400V 11 5A Voltage Range Phase Phase Phase Neutral 100 250 100 440V Frequency 50Hz 0 5Hz e LOOP P PE FAULT LOOP IMPEDANCE MEASUREMENT Phase Earth Range Q Resolution Q Accuracy 0 01 19 99 0 01 20 0 199 9 0 1 5 Reading 3 digits 200 1999 1 0 1 mQ on range 0 0 199 9 mQ with IMP57 Peak value of the Test current 127V 3 65A 230V 6 64A Voltage Range Phase Earth 100 250V Frequency 50Hz 0 5Hz e LOOP Raisma FAULT LOOP IMPEDANCE MEASUREMENT without RCD Tripping Phase Earth Range Q Resolution Q Accuracy 1 1999 15mA 100 250V 50Hz Test Current Voltage Range Phase Earth e EARTH GROUND RESISTANCE MEASUREMENT WI 1 TH EARTH RODS 0 5 Reading 3 digits Range RE Q Resolution Q Accuracy 0 01 19 99 0 01 20 0 199 9 0 1 5 Reading 3 digits 200 1999 1 Test Current lt 10mA 77 5Hz Open circuit Test Voltage lt 20V RMS e RESISTIVITY MEASUREMENT Range p Resolution Accuracy 0 60 19 99 Qm 0 01 Qm 20 0 199 922m 0 1Qm 200 19999m 1 Qm 5 Reading 3 digits 2 00 99
5. 33 41 KVA pfl 0 99 i dpf1 0 99 i WAVE PG PG Example of screen The symbols used are described in Table 3 For messages displayed see Error Reference source not found The following keys are enabled F2 to select the WAVE mode see paragraph 7 6 3 F3 F4 to select the previous next function respectively SAVE to save a record of Smp type in instrument memory see paragraph 8 2 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU during a recording or an energy measurement START STOP to record selected parameters according to the instrument s settings see chapter 9 79 MARVR2250 7 6 3 WAVE mode Selecting the WAVE mode a screen similar to this will be displayed according to the settings made as per paragraph 7 1 The screen shows the waveform of the current and the voltage 27 09 00 17358 12 Example of screen The symbol
6. Measurement procedure and results of Q mode 1 Select mode by means of the F1 key 2 Connect the Red Yellow and Green connectors of the split cables to the corresponding input terminals of the instrument B1 B2 B3 Instrument connection for Phase Sequence Detection in a 400V three phase system ES 3 Press the START key to execute a test At the end of the test the instrument emits a double sound signal RST Phase sequence OK indicating that the test completed correctly i FRQ 50 0HZ VR S 391V and displays a screen o wr R 399y Value of the phase to phase similar to this voltage a FUNC Working mode Eg This result can be stored by pressing the SAVE key twice see paragraph 8 1 43 6 4 6 LOOP Faulty Cases Se If the instrument detects the external power supply adapter connected the instrument will show a screen similar to this Should the instrument detect that the phase and or neutral cables are not connected a screen similar to this is displayed when pressing START Should the instrument detect a voltage between phase and neutral higher of 250V for example where the black cable is connected to an installation phase conductor of a 400V three phase system a screen similar to this is displayed LOOP 05 06 01 P N A FRQ 50 0HZ VP N 231V Ak REMOVE POWER VP P G i Q 230V MARVR2250 Disconnect the Extern
7. current is correct Some leakage currents may be present in the installation Disconnect all the loads downstream of the RCD THE PREVIOUS RESULTS CANNOT BE SAVED If during tests MAN x1 x2 x5 and AUTO during x1 and x5 tests the RCD trips to break the circuit outside the limits reported in Table 3 the instrument emits a long sound signal at the end of the test and displays a screen similar to this RCD 05 06 01 A 487 ms FRO 50 0Hz Ut 1V VP N 231V VP PE 230V x1 30mA 50V FUNC IdN RCD UL RCD tripping time ATTENTION the trippin time is higher than th standard limit o Eg The test can be stored by pressing the SAVE key twice see paragraph 8 1 35 Se If the RCD tripping time is higher than the instrument s measuring limits the instrument emits a long sound signal at the end of the test and displays a screen similar to this MARVR2250 RCD 05 06 01 A gt 999 ms FRO 50 0Hz Ut 1V VP N 231V VP PE 230V RCD tripping time is greater than the maximum measurable time it depends on type of test see following table A TIME NOT OK 50V RCD UL x1 30mA FUNC IdN ATTENTION the tripping time is higher than the standard limit The maximum duration depends on the test type Test type General RCD Se
8. 2 4 MAN and TIMER mode faulty cases Se If the instrument detects the external power supply adapter connected it displays a screen similar to this If the instrument detects a voltage between the input terminals higher than 15V the instrument does not perform the test and displays this screen for 5 seconds If the instrument cannot generate the nominal test voltage it will emit a long sound signal and display a screen similar to this MO 05 06 0 MQ V 15s AX REMOVE POWER MAN 500V FUNC VNOM MQ 05 06 01 V 15s dk VOLT IN INPUT MAN 500V FUNC VNOM MARVR2250 Disconnect the external power supply adapter ATTENTION the test cannot be executed Check that the circuit is not energised These results cannot be saved 05 06 01 A1 17m0 Insulation Resistance ATTENTION the test of resistance Riso was performed at a voltage value lower than the set rated voltage Low insulation case This occurs 107V 15s under low insulation conditions or in the presence of MAN 500V capacitance on the installation FUNC VNOM Test Time The displayed result can be stored by pressing the SAVE key twice see paragraph 8 1 23 MARVR2250 6 3 RCD TEST ON A AND AC TYPE RCDs The test is executed according to 1EC61557 6 EN61008 EN61009 EN60947 2 B 4 2 4 and VDE 0413 part 6
9. 3 3 RCD Faulty cases 6 3 3 1 Connection troubles If the instrument detects RCD 05 06 01 the external power supply adapter connected it will display ms a screen similar to this FRO 50 0Hz Ut V VP N 230V Vp PE 230V AN Disconnect the External SEO TE PONES Power Supply Adapter xl 30ma 50V FUNC IdN RCD UL Should the instrument RCD 05 06 01 detect that the phase and or neutral cables are not connected to an MmS installation a screen similar to this displayed FRQ 50 0Hz Ut V VP N OV Vp PE OV NO VOLTAGE detected xl 30m 50V FUNC ran Rep Jur when pressing START Should the instrument RCD 05 06 01 detect a voltage between phase and neutral higher than Mms 250V for example if the black cable is connected FRQ 50 0Hz Ut V A g VP N 401V VP PE 230V to an installation phase conductor of a 400V HIGH VOLTAGE Detected three phase system a xl 30mA 50V screen similar to this is FUNC lran rcpD luL displayed 32 This screen is displayed when the phase conductor has been reversed with the neutral one The instrument does not perform the test Exchange the red cable with the black one Repeat the test This screen is displayed when the phase conductor has been exchanged with the protective conductor The instrument does not perform the test Reverse the phase
10. 30mMA a The instrument performs the test at ln 0 The RCD must not trip b The instrument performs the test at Y I 180 The RCD must not trip For a selective RCD a 30 seconds timer starts before executing next test c The instrument performs the test at ln 0 If the RCD passed the test it must trip and the instrument shows the message RESUME RCD The operator shall reset the RCD For a Selective RCD a 60 seconds timer starts before executing the next test d The instrument performs the test at 180 Follow the same procedure as described under c e The instrument performs the test at 51 0 Follow the same procedure as described under c f The instrument performs the test at 51 180 Follow the same procedure as described under c The test is completed The F4 key selects one of the following limit values for the contact voltage which can be shown cyclically when pressing the key 50V default 25V WARNING Never disconnect the test leads when the message MEASURING is displayed 25 MARVR2250 6 3 1 Tripping times for the general and selective RCDs Table of tripping times for I n x1 l n x2 l n x5 and AUTO tests If the parameters set on the instrument comply with the type of RCD under test and if the latter works properly the tests x1 x2 and x5 SHALL cause the RCD tripping within the times shown in the following table Max tripping time in seconds Max tripping
11. 93 10 MARVR2250 INSTRUMENT MEMORY By pressing the MENU key the following screen will be displayed MENU GENERAL SAFETY TEST MEMORY ANALYZER MEMORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE y 1 It is not possible to enter the MENU during a recording or a Real Time Energy measurement 10 1 SAFETY TEST MEMORY Selecting the SAFET TEST MEMORY item and pressing ENTER the instrument displays the following screen a a MEM TYPE PLACE TOT FREE SAFETY TEST MEMORY MEM TYPE PLACE 001 LOWQ 003 002 EARTH 003 003 MQ 004 004 RCD 004 005 LOOP 001 TOT 005 FREE 994 T L LAST ALL Example of SAFETY TEST MEMORY screen Order Number of the measurement Measurement TYPE Mnemonic parameter associated by the user to the measurement Total number of measurements Available memory locations The following keys are enabled ee E E E E to select the measurement to clear the last recording performed to clear all the recordings performed to see the results of the selected test to quit this mode 94 MARVR2250 10 2 ANALYZER MEMORY This option permits you to display Y The contents of the instrument memory v The size of the memorised data Y The space available for future recordings expressed in days and hours The stored data can be displayed and analysed only by downloading the data to a PC with the operatin
12. 99kQm 0 01 kQm 100 0 125 6kQm 0 1 kQm setting distance 10m Test Current Open circuit Test Voltage lt 10mA 77 5Hz lt 20V RMS 99 13 1 1 ANALYZER and AUX functions e VOLTAGE MEASUREMENT SINGLE PHASE SYSTEM AUTORANGE MARVR2250 Range V Resolution V Accuracy Input Impedance 15 310V 0 2V an 300kQ Phase Neutral 310 600V 0 4V 0 5 Reading 2digits 300kQ Phase Phase e VOLTAGE SAG AND SURGE DETECTION SINGLE PHASE SYSTEM MANUAL RANGE Resolution Resolution Accuracy Accuracy rif 50Hz Range V Voltage Time Voltage Time Input Impedance 15 310V 0 2V 300kQ Phase E as Neutral 310 600V 0 4V 10ms 4 period 1 0 Reading 2digits 10ms period 300k Phase 2 ase e CURRENT MEASUREMENT SINGLE PHASE SYSTEM AUTORANGE Range V Resolution mV Accuracy Input Impedance Overload Protection 0 005 0 26V 0 1 o re 0 26 1V 0 4 0 5 Reading 2digits 200kQ 5V Example with a 1000A 1V full scale clamp the instrument detect only current higher than 5A e POWER MEASUREMENT SINGLE PHASE SYSTEM AUTORANGE Quantity Range Resolution Accuracy 0 999 9W 0 1W 1 999 9kW 0 1kW ACTIVE POWER 1 999 9MW 0 1MW 1000 9999MW 1MW 0 999 9VAR 0 1VAR 1 999 9KVAR 0 1kVAR REACTIVE POWER 1 999 9MVAR 0 1MVAR 1000 9999MVAR 1MVAR 0 999 9VA 0 1VA 1 999 9kVA 0 1kVA 1 0 R
13. GENERATION ON Powers Pf and cos selected P1 Q1i Q1c S1 Pf1 dpf1 Energies Ea1 Eri1 Erc1 By pressing START STOP the recording of the selected parameters is started according to the settings made for each Typical Configuration The rotary switch position does not affect the recording setting 91 MARVR2250 9 3 DURING A RECORDING If during a recording the external power supply is de energised the instrument will continue the recording using the internal battery power until the batteries are exhausted the data stored up to the point the instrument shuts down will be saved We recommend you ALWAYS insert a new set of batteries before a long recording The instrument uses sophisticated algorithms to prolong the battery life If the instrument is recording or is measuring energy and the external power supply is not connected about 5 minutes from the last key pressure or switch rotation the instrument starts a special procedure to save the batteries ECONOMY MODE the instrument keeps recording but the display is turned off During a recording the following are disabled Y AUTOPOWER OFF function Y ON OFF key Y HOLD key y SAVE key 9 3 1 MENU key If you press the MENU key during a recording a screen similar to this will appear INFO REC n XX START 09 18 01 11 35 13 18 01 12 00 INT PERIOD 15min REC PERIODS 00004 REC TIME 139d 02h HARM REC ON ANOM REC ON N ANOMALIES 00000 T
14. Us detected referred to the FRO 50 0Hz Ut 1V rated value of the RCD VP N 231V VP PE 231V current set sue The test can be stored by pressing the SAVE key twice see paragraph 8 1 Ifthe parameters set on the instrument are consistent with the RCD under test the ramp test mil WILL CAUSE RCD TRIPPING WITH A CURRENT LOWER THAN OR EQUAL TO THE SELECTED RATED DIFFERENTIAL CURRENT Do not use this test to compare the trip time with the trip current as the RCD has to be tested for tripping time with a current equal to and over that of the rated leakage current of the RCD 30 MARVR2250 6 3 2 5 Results of RAL mode ES 4 Press the START key once the instrument carries out the test WARNING Never disconnect the test leads when the message MEASURING is displayed The RCD must NOT trip and the instrument emits a double sound RCD 05 06 01 Global Earth Resistance signal indicating the value positive outcome of 12 the test and displays a Q Value of contact voltage U screen similar to this detected referred to the rated value of the RCD FRO 50 0Hz Ut 1V current set VP N 231V VP PE 231V IE OK Contact voltage not dangerous RA 30mA 50 FUNC IdN RCD Contact Voltage Limit value Working mode RCD nominal current RCD type we The test can be stored by pressing the SAVE key twice see paragraph 8 1 31 MARVR2250 6
15. Y METER This mode will be described in detail in the next paragraphs The symbols used are described below Symbol Description P1 Active power Q1 Reactive power S1 Apparent power pf1 Power factor dpf1 coso Ea1 Active energy Eri1 Inductive reactive Energy Erc1 Capacitive reactive Energy Table 4 Symbols used in the ENERGY function The symbols i and c stand for reactive powers Q and energies Er inductive and capacitive respectively 81 7 7 2 MARVR2250 METER mode In this mode the instrument shows a screen similar to this according to the settings made as per paragraph 7 1 27 09 00 17235312 ENERGY SINGLE PHASE Eal 0 000 kWh Ercl 0 000 kKVARh Eril 0 000 kVARh Pl 36 38 kw Q1 6 375 KVAR sl 36 94 KVA dpf1 0 98 i 1 Meas Time 00 00 00 MEAS PG PG Example of screen The symbols used are described in Table 4 For messages displayed see Error Reference source not found The following keys are enabled E F2 F3 F4 SAVE ENTER HOLD MENU START STOP to start stop a direct energy measurement The energy counters will start increasing proportionally to the active power absorbed by the load The results obtained cannot be memorised If the active power is negative the counters will not increase to pass to previous next function respectively to save a record of Smp type in ins
16. corresponding active power will be automatically selected e When selecting the reactive energies for the recording the corresponding reactive powers will be selected 67 MARVR2250 Symbols Description Advised settings i The recording of all the selected parameters will start at 00 START MAN seconds after pressing START STOP see chapter 9 1 The recording of all the selected parameters will be interrupted TORMAN manually by pressing START STOP see chapter 9 1 The recording of all the selected values will be started interrupted at START AUTO the set dates and times In order to start the recording the user will STOP AUTO have to press START STOP to set the instrument in stand by mode until the start date and time previously set see chapter 9 1 The value of this parameter determines how many seconds will 15min INT PERIOD elapse before the values of all the selected parameters will be f memorised Available choices 5sec 10sec 30sec 1min 2min 5min 10min 15min 30min 60min ON the instrument will record the values of the selected HARM REC voltage and current harmonics OFF the instrument will not record any voltage or current harmonic selected ANOM REC ON the instrument will record voltage anomalies voltage sag and surge OFF the instrument will not record any voltage sag and surge V1 Voltage RMS value THD DC 01 49 Voltage Total Harmonic Distortion DC Compo
17. ee Tate Tripping time expressed in all six tests were 0 180 miliseconds eget e a x1 2 gt 999ms gt 999ms positive the instrument displays a screen similar 25m8 65ms Value of contact voltage U to this x5 20ms 30ms detected referred to the A rated value of the RCD FRO 50 OHZ Ut 1V current set VP N 231V VP PE 231V IP OK RCD passed the test AUTO 30mA FUNC IdN RO es ae Voltage Limit value Working mode RCD nominal current nominal current RCD type we The test can be stored by pressing the SAVE key twice see paragraph 8 1 29 MARVR2250 6 3 2 4 Results of RAMP all mode 4 Press the START key once to execute a test with 0 Current waveform STOP Or Press the START key twice to execute a test with 180 Current waveform The instrument generates a leakage current growing step by step for a given time interval CAUTION Never disconnect the test leads when the message MEASURING is displayed At the end of the test if Tripping Current the RCD tripping current is lower than ln Type 05 06 01 Tripping time expressed in milliseconds AC or 1 41 Type A with ln gt 10mA or 21 Type A with l n lt 10mA the instrument emits a double sound signal indicating the positive outcome of the test and displays a screen similar A UR a boma 7 50V to this O this A IdN An Voltage Limit value Working mode RCD nominal current RCD type Value of contact voltage
18. is and displays a screen 523V 15s higher than Ruax similar to this Th MAN 500V Test duration FUNC VNOM swe The displayed result can be stored by pressing the SAVE key twice see paragraph 8 1 6 2 3 Results of TMR mode If the insulation resistance is lower than Rmax see Table 2 and the instrument generated the nominal test voltage the instrument emits a double sound signal indicating the positive outcome of the test and displays a screen similar to this see paragraph 8 1 Ifthe Insulation resistance is higher than Rmax see Table 2 the instrument emits a double sound signal at the end of the test indicating the positive outcome of the test and displays a screen similar to this see paragraph 8 1 MARVR2250 Insulation resistance Voltage during the test 1 07m0 Duration of the test A MQ 05 06 01 gt 999 mQ 514V 15s Test mode TMR 500V TIME 60s Set time FUNC VNOM T J The displayed result can be stored by pressing the SAVE key twice Maximum resistance value which can be measured 999Q is displayed if a rated voltage of 500V was selected See Table 2 The symbol gt means that the resistance value is 22 523V 15s higher than Rmax TMR 500V TIME 60s Test duration FUNC vNom T l The displayed result can be stored by pressing the SAVE key twice 6
19. of RT and RTS MOSS siii en dci 17 6 15 AUTOS RT RT faulty cases id a a 17 6 2 MQ Insulation resistance Measurement with 50V 100V 250V 500V 1000V Test Voltage 19 6 2 1 Measurement Procedures iississsssensapnatiwresneciinniededen i 19 0 2 2 Results of MAN Mode 000 A ad id ae 21 6 2 3 Results of IMR MOG css A AA A Addin Add 22 6 2 4 MAN andi TIMER mode taulty CASOS iia 23 6 3 RCD Test on A and AC Type RODS ascitis chat aes nha tape ahaa thc ida tieia tat aes kee bis 24 6 3 1 Tripping times for the general and selective RCDS cscssesssseseeseseeseetssesneessseeneeeeseeneeeeseeseeseeeesneaeaneneeessneasesssneneessens 26 6 3 2 Measurement proCedUre viii aii ios 27 03 39 ROD Failly CaSO iria AAA A in 32 6 4 LOOP 2 Measurement of Line Impedance Fault loop Impedance Prospective Short Circuit Current Calculation and Phase Sequence Indicator cccccccccccesssseseseseseseensecseseecececeueesecaesesesnsnsnsasecececeeececeesesesseeceneeeesesisenensnsneneneass 37 6 4 1 Measurement procedure and results of P N mode scceeseseseeseseseeseseceeeeesesesseceeeceessnsuseceeesansnsasaeeeeasansnsasetessetenees 38 6 4 2 Measurement procedure and results of P P MOE s cesecsesesseseseesesesecseecescsesusaeeeeceatsnsuseceeeeatsnsasasansasansnsasenensetenees 39 6 4 3 Measurement procedure and results of P PE mode c sececceseceeseseseescseeeeseses
20. of the three terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1 B3 B4 Instrument connection for P P test in a 400V three phase system 3 Connect the mains plug into a 230V 50Hz socket or the croc clips to the conductors of the three phase system see previous pictures 4 If possible disconnect all low impedance loads downstream of the point at which the measurement is to be taken as such impedance would be in parallel with the line impedance to be measured 5 Press the START key The instrument starts the test WARNING The P P measurements in a 400V system use a test current of 11 5A approx This may cause the tripping of protective devices with nominal value lower than 10A If necessary perform the test upstream of the protection Never disconnect the test leads when the message MEASURING is displayed At the end of the test LOOR 05 06 01 Value of phase to phase the instrument emits a impedance expressed in Q double sound signal indicating that the test 0 s 5 7 Q Value of the phase to phase A A is correctly ce prospective short circuit terminated and FRO 50 0HZ current expressed in Amps VP P 402V VP PE 231V calculated according to the displays a screen following formula similar to this P P Working mode FUNC Z2Q Formula for calculation of prospective short circuit current Uy Lec PP Wh
21. paragraph 7 1 27 09 00 17235312 VOLTAGE SINGLE PHASE vi 230 2 V Vpk1l 325 5 V Thdv 0 0 Freq 50 0 Hz HARM WAVE PG PG Example of screen The symbols used are described in Table 1 For messages displayed see Error Reference source not found The following keys are enabled eo F1 eo F2 F3 F4 SAVE ENTER HOLD MENU START STOP to select the HARMONIC mode see paragraph 7 4 3 to select the WAVE mode see paragraph 7 4 4 to select the previous next function respectively to save a record of Smp type in instrument memory see paragraph 8 2 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU during a recording or an energy measurement to record the selected parameters according to the instrument s settings see chapter 9 71 7 4 3 HARM mode On selecting the HARM mode a screen similar to this will be displ
22. similar 299 90 e 60 ATTENTION Value of to this mA mA resistance is out of range AUTO 0 110 FUNC CAL sue The displayed result can be stored pressing the SAVE key twice see paragraph 8 1 18 MARVR2250 6 2 MQ INSULATION RESISTANCE MEASUREMENT WITH 50V 100V 250V 500V 1000V TEST VOLTAGE These measurements comply with IEC 61557 2 and VDE 0413 part 1 WARNING Before carrying out the insulation test make sure that the circuit under test is not energised and all the loads are disconnected yA J lt gt Turn the switch to the MQ position D y A The key F1 selects one of the following measuring modes Mode MAN Manual mode Minimum test time of 5 secs or for as long as the start key is pressed This is the recommended test Mode TMR Timer mode test duration depends on the selected interval from 10 to 999 seconds This test can be used if a minimum measuring time is required 6 2 1 Measurement Procedure 1 Select the desired mode by means of the F1 key 2 Connect the test leads to the instrument input terminals B1 and B4 respectively Example insulation measurement between phase L1 and earth in a 3 PHASE electrical installation using test leads 3 If the cables supplied with the instrument are not long enough for the measurement you may extend the black cable 4 Connect the instrument terminals to the object which is to be submitted to the insulation t
23. stored by pressing the SAVE key twice see paragraph 8 1 amp Ifthe instrument detects a resistivity value higher than Message gt 1900 means Thai 1999kQ it will display a the resistivity value is higher E than the maximum screen similar to this gt 1 9 9 9 kQm m as rabl Vd 1V Test 04 pAVG 0 74kQm p DIST 5m FUNC CLR T l cd result can be stored by pressing the SAVE key twice see paragraph 8 1 54 MARVR2250 6 6 LEAKAGE CURRENT REAL TIME MEASUREMENT This working mode allows the user to perform real time measurement and recording of Leakage Current using the External Flexible Clamp vAg lt a gt Turn the switch to the AUX position LPGA 1 On pressing this key you will change the measuring unit of the instrument s input The following possibilities will be displayed cyclically de Instrument s input disabled mA Leakage current Others not supported 2 Connect the External Flexible Clamp to the instrument s 11 input 3 Check if the selector on the probe or clamp is adjusted to the range set on the instrument Both ranges must be set to the same value Example of External probe connections WARNING Never leave probes connected to the instrument when not in use even with the probe switched off MARVR2250 SINGLE PHASE THREE PHASE NEUTRAL 1 DISCONNECT ADDITIONAL i DISCONNECT ADDITIONAL GRO
24. this instrument 7 1 5 How to set the value of the transformer voltage ratio TV RATIO The instrument can also be interfaced with step down transformers in the equipment under test It can display the value of the voltages present on the primary winding of these transformers To do this it will be necessary to set the value of the transformer winding ratio from 2 1 to 3000 1 The default is set at 1 1 for measurements of non transformer systems Select TV RATIO in the ANALYZER CONFIG menu Set the desired value by pressing the multifunction keys F3 and F4 61 MARVR2250 7 1 6 How to enable disable the password The instrument is provided with password protection to avoid the accidental interruption of recording or energy measurements Once a recording or a direct energy measurement has been started with the option PASSWORD enabled approximately 3 minutes from the last key press or switch rotation the START STOP key is disabled To stop the recording it will be necessary to enter the password In order to enter the password which is not changeable press START STOP then press the multifunction keys in the following sequence within 10 seconds F1 F4 F3 F2 If you wait more than about 10 seconds the display will return to the meter mode and the instrument will continue recording If you enter the wrong password the message ERROR PASSWORD will be displayed under PASSWORD After a few seconds the display
25. tripping time is RCD 05 06 01 Tripping time expressed in within the limits in Table milliseconds 3 the instrument emits a double sound signal 4 9 Value of contact voltage U ms t indicating the positive detected referred to the outcome of the testand FRO 50 0Hz Ut 2V rated value ofthe RCD Poe VP N 231V VP PE 231V current set displays a screen similar i to this OK RCD passed the test x1 30mA 50V FUNC IdN Aa Contact Voltage Limit value Working mode RCD nominal current RCD type we The test can be stored by pressing the SAVE key twice see paragraph 8 1 28 MARVR2250 6 3 2 3 Results of AUTO mode 4 Press the START key once to execute the test The instrument carries out the eee following six tests with different values of rated current 1 2 with 0 current waveform the RCD shall not trip 1 21 n with 180 current waveform the RCD shall not trip n with 0 current waveform the RCD trips message RESUME RCD n with 180 current waveform the RCD trips message RESUME RCD 5l n with 0 current waveform the RCD trips message RESUME RCD Slin with 180 current waveform the RCD trips end of the test The test is good if all values of tripping times are within the limits reported in Table 3 WARNING Never disconnect the test leads when the message MEASURING is displayed At the end of the test if KDP
26. voltage THD DC 01 03 05 07 09 11 13 15 17 19 21 23 25 Selected current 11 Sel Harmonics current THD DC 01 03 05 07 09 11 13 15 17 19 21 23 25 CO GENERATION OFF START UP Y ANALYZER CONFIG System SINGLE Frequency 50Hz Current Range not modified Clamp Type STD TV Ratio not modified Password not modified Y RECORDER CONFIG Start MANU the recording is started 1 minute after pressing the START STOP key Stop MANU Integration period 5sec Recording of harmonics ON Recording of Voltage anomalies voltage Dips and Surge ON Voltage Reference for Dips and Surge detection 230V Upper Limit for Dips and Surge detection 6 Lower Limit for Dips and Surge detection 10 Selected voltages V1 Selected voltage harmonics THD 01 03 05 07 09 11 13 15 Selected currents 11 Selected current harmonics THD 01 03 05 07 09 11 13 15 CO GENERATION OFF Powers Pf and cos selected P1 Qi Q1c S1 Pf1 dpf1 Energies Ea1 Eri1 Erc1 90 MARVR2250 POWER amp ENERGY v ANALYZER CONFIG System SINGLE Frequency 50Hz Current Range not modified Clamp Type STD TV Ratio not modified Password not modified Y RECORDER CONFIG Start MANU the recording is started 1 minute after pressing the START STOP key Stop MANU Integration period 15min Recording of harmonics OFF Recording of Voltage anomalies voltage Dips and Surge OFF Selected voltages V1 Selected currents 11 CO
27. will not be elaborated and the corresponding series of values will not be transferred to the definitive memory 9 2 2 Typical Configurations To activate the Typical Configurations follow this procedure 1 Turn the rotary switch to ANALYZER 2 Press MENU key followed by F1 F2 to navigate to the following screen MENU GENERAL SAFETY TEST MEMORY ANALYZER MEMORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE Se E 3 Press MENU key again The instrument displays a screen as shown below picture on the left This way it is possible to select the desired configuration with F1 or F2 key TYPICAL CONFIG TYPICAL CONFIG EN50160 EN50160 SURGES amp DIPS SURGES amp DIPS START UP START UP POWER amp ENERGY POWER amp ENERGY y T y tT Configuration selection Confirmation configuration selection 4 Press ENTER key The instrument displays the message Data saved for a while to confirm the desired configuration see above on the right The instrument will return to the measure mode Below you can find the parameters for each of 5 Typical Configurations 88 MARVR2250 EN50160 Y ANALYZER CONFIG System SINGLE Frequency 50Hz Current Range not modified Clamp Type STD TV Ratio not modified Password not modified Y RECORDER CONFIG Start MANU the recording is started 1 minute after pressing the START STOP
28. 4V VP PE 234V AX UT DANGEROUS MARVR2250 The instrument cannot detect an efficient protection circuit x1 30mA 50V FUNC IdN RCD UL RCD 05 06 01 FRQ 50 0Hz Ut V VP N 234V VP PE 34V Message NO PE the instrument cannot detect an efficient protection xi 30mA 50V circuit FUNC Ian RCD JUL RCD 05 06 01 FRO 50 0Hz Ut V VP N 231V VP PE 230V x1 500mA 50V FUNC IdN RCD UL Message HOT the instrument has overheated THE PREVIOUS RESULTS CANNOT BE SAVED When using the Ra function if a contact voltage U higher than the selected limit UL is detected the instrument emits a long sound signal at the end of the test and displays a screen similar to this 6 3 3 2 Ifthe RCD trips during the preliminary test regardless of the working mode the instrument displays a screen similar to this RCD 05 06 01 18000 FRO 50 0Hz Ut 54V VP N 234V VP PE 34V R 30mA 50V MARVR2250 The instrument cannot detect an efficient protection circuit FUNC IdN RCD UL RCD tripping faulty cases RCD 05 06 01 ms FRO 50 0Hz Ut V VP N 231V VP PE 230V AR RCD TRIPS x1 30mA FUNC IdN 50V RCD UL The test can be stored by pressing the SAVE key twice see paragraph 8 1 The RCD trips too early Check if the RCD nominal
29. AT II 600V 350V phase earth CAT III 600V 300V phase earth Usage Indoor max height 2000m EMC EN61326 1 1997 A1 1998 The instrument complies with European Guidelines for CE mark 13 2 2 Safety Test LOWQ 200mA IEC 61557 4 MQ IEC 61557 2 RCD IEC 61557 6 LOOP P P P N P PE IEC 61557 3 PHASE SEQUENCE IEC 61557 7 EARTH IEC 61557 5 13 2 3 ANALYZER Voltage Sag and Surge EN50160 Alternating Current Static Watt hour meters for Active Energy EN61036 CLASS 2 Alternating Current Static VAR hour meters for Reactive Energy IEC 1268 CLASS 3 101 13 3 GENERAL SPECIFICATIONS 13 3 1 Mechanical Data Dimensions Weight 13 3 2 Power supply Batteries Battery Life External Power Supply Adapter optional 13 3 3 Display Display Type Resolution Visible Area 13 3 4 Memory Safety Test Memory ANALYZER 13 4 ENVIRONMENT Reference Temperature Working Temperature Range Working Humidity Storage Humidity Range Storage Humidity MARVR2250 225 L x165 W x 105 H mm 1295g approx including batteries 1150g approx excluding batteries 6 x 1 5 LR6 AA AM3 MN 1500 LOWQ approx 800 tests MQ approx 500 tests RCD AC and A Type approx 1000 tests LOOP P P P N P PE approx 1000 tests Rack approx 1000 tests EARTH approx 1000 tests PHASE SEQUENCE approx 1000 tests AUX recording approx 20 Hours ANALYZER recording approx 20 Hours Code MARVR2250PSU for ANALYZER an
30. CORDER CONFIG CONTRAST DATE amp TIME LANGUAGE y 1 It is not possible to enter the MENU during a recording or a Real Time Energy measurement Pressing this button during a recording will display the main recording parameters see paragraph 9 3 1 5 1 HOW TO ADJUST THE CONTRAST By pressing the multifunction keys F1 and F2 position the cursor on the CONTRAST item and confirm by pressing the ENTER key By pressing the multifunction keys F3 and F4 adjust the contrast higher values correspond to a higher contrast while lower values correspond to a lower contrast and press the ENTER key to SAVE the change or press ESC to quit without saving This setting will remain unchanged after turning off the instrument 5 2 HOW TO SET DATE AND TIME By pressing the multifunction keys F1 and F2 position the cursor on the DATE amp TIME item and confirm it by pressing the ENTER key The time is expressed as hh mm 2 digits for hours 2 digits for minutes 24 hour clock Press the ENTER key to SAVE the change or press ESC to quit without saving This setting will remain unchanged also after turning off the instrument 5 3 HOW TO SET THE LANGUAGE By pressing the multifunction keys F1 and F2 position the cursor on the desired language and press the ENTER key to SAVE the change or press ESC to quit without saving This setting will remain unchanged after turning off the instrument 11 MARVR2250 5 4 RESET This option r
31. Easinna PROCS SS siii as a st ld tte celal ad 83 7 8 1 Using the Instrument in a Single Phase SysteM oonicionicidionicicionmoninnc cc 83 7 8 2 Using the Instrument in a Three Phase System ccsscesesesssseseeesssseeseeesseeeeeesseeseeesseeaeeesseesseasseenseassneneeesseeneeesaneneessans 84 SAVING RESTS lt lt aaa 85 8 1 SAVING Safety TeSt RESUS at da ia ri ainda EE Ea ieS 85 8 2 Saving Displayed Values of ANALYZER FUnction c cssesseessesssesteseeeeessesneneeeeeesesnsneneeeeteassnenseeeeeasanensasenenseseseaeey 85 9 REG OR IN GS cocida atrapa dare 86 FD SVAN LC RECTAN seats ha cate capa he a aac ey Jaan andy Pasa cade Mala ae aan eae Re 86 9 2 Setting Typical Configurations 0 a 87 92 4 Default Configura EAN AEA EEA EEEE oar T n EAO 87 9 2 2 Typical Configurations seseratan ena A E EE E ET E AOE R 88 9 3 DUDA REO a 92 93M MENU MO ua lis a DAA a A a dean dh AO 92 9 3 2 Rotary Switch during a recording isrtri riesia netii oia ed ai a pinin 93 9 4 Stopping a Recording or an Energy Measurement a eee 93 10 INSTRUMENT MEMORY ici ca cian 94 101 SAFETY TEST MEMORY Sortegem ea ati i 94 10 2 ANALYZER MEMO tania A a ata 95 11 CONNECTING THE INSTRUMENT TO A PC sccsceseseseeseseseeneseeseneeenesenseneeeseeeeeneaeananeneaeasesenecesenenennanaes 96 12 MAINTENANGE ad 97 124 General IS UNS a ii as 97 12 2 Ban RM Ed 97 123 Instrument OIC edit tt did T AOS 97 IZA EMG OF Me iii a 97 13 TECHNICAL SPECIFICATIONS i scnsscce
32. MANU Integration period 15min Recording of harmonics ON Recording of Voltage anomalies voltage Sag and Surge ON Voltage Reference for Sag and Surge detection 230V Upper Limit for Sag and Surge detection 6 Lower Limit for Sag and Surge detection 10 Selected voltages V1 Selected voltage harmonics THD 01 03 05 07 Selected currents 11 Selected current harmonics THD 01 03 05 07 CO GENERATION OFF Powers Pf and cos selected P1 Q1i Q1c S1 Pf1 DPF Energies Ea1 Eri1 Erc1 If the user changes the instrument settings the user can configuration using the RESET option see paragraph 5 4 87 quickly restore the above MARVR2250 By pressing START STOP the recording of the selected parameters is started according to the settings made in the MENU see paragraphs 7 1 and 7 2 The rotary switch position does not affect the recording setting As the default value of the integration periods is set at 15 minutes the instrument will store data in the temporary memory for 15 minutes Afterwards the instrument will elaborate the results saved in the temporary memory and will save the result min avg and max values to the definitive memory Therefore if an integration period of 15 minutes has been set the recording will continue for about 15 minutes before producing a series of recorded values If the recording is interrupted before the selected integration period has elapsed the data stored in the temporary memory
33. R MEMORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE 3 Press MENU key again The instrument displays a screen as shown below picture on the left In this way it is possible to select the desired configuration on 11 channel with F1 or F2 key NOTE that TEMP and HUMIDITY are not supported TYPICAL CONFIG TYPICAL CONEA LEAKAGE 11 LEAKAGE I1 HUM HR I1 HUM HR I1 y 1 y 1 Configuration selection Confirmation of configuration selection 4 Press ENTER key The instrument displays the message Data saved for a while to confirm the configuration see above picture on the right The instrument will return to the measuring mode and you can start recording by pressing START STOP key 59 MARVR2250 7 ANALYZER This function allows the following operations Y Display in real time the electrical parameters of a single phase system with and without neutral wire and the harmonic analysis of voltage and current Y Conduct a direct energy measurement without memorising v Memorise pressing SAVE key the sampled values of the parameters present at the instrument input generating an Smp record in the instrument memory It will be possible to analyse the memorised data ONLY by transferring the data to a PC Y Record simultaneously pressing the START key after a proper setting RMS values of voltage current corresponding
34. Results of AUTO mode At the end of the test if the average resistance value Ravg is lower 1 0 50 Average resistance than 50 the instrument E value Ravg emits a double sound R P R M EEE E i indi H 1 07 1 03 signal indicating the Suk er and conesponding positive outcome of test current when the the test and displays a agro 0 110 polarities of test screen similar to this leads swapped FUNC CAL E The displayed result can be stored pressing the SAVE key twice see paragraph 8 1 MARVR2250 6 1 4 Results of RT and RT modes If the resistance value Moon of RT or_RT is lower than 50 the instrument _A Max resistance value of emits a double sound 1 070 R or R signal indicating the positive outcome of 219mA Test current the test and displays a screen similar this RT 0 11Q TIME 10s Duration of the test FUNC CAL T y Note We recommend that crocodile clips are used to achieve a good contact with the conductor under test In this test the instrument gives as a final result the maximum measured value of R or R and using test leads instead of crocodile clips could give an incorrect result due to bad contact between the test leads and conductor under test eg The displayed result can be stored pressing the SAVE key twice see paragraph 8 1 6 1 5 AUTO RT RT faulty cases If the instrum
35. T STOP Y AUTOMATICALLY If the operator has pressed START STOP the instrument will remain in stand by until the date and time set then the recording will start WARNING NM For recordings we recommend the use of an optional external power supply adapter codeMARVR2250PSU The instrument will however perform a recording using internal batteries If you start recording without the external power supply adapter code MARVR2250PSU the instrument will display a warning message No ext supply Press START key again to run the recording or press ESC to quit If during a recording the external power supply adapter code MARVR2250PSU is de energised the instrument will continue the recording using internal battery power until the batteries are exhausted the data stored will be retained We recommend you ALWAYS insert a new set of batteries before a long recording The instrument uses sophisticated algorithms to prolong the battery life Particularly v The instrument switches the backlight OFF automatically after 5 seconds v If the battery level is too low the backlight function will be disabled v If the instrument is displaying in real time and the external power supply is not connected the instrument turns off automatically about 5 minutes from the last key press or switch rotation AUTOPOWER OFF function v If the instrument is recording or is measuring energy and the external power supply is not connected after
36. The instrument fulfils the technical specifications listed in this manual The performance of the specifications is guaranteed for one year Annual calibration is recommended Please call 01923 441717 for details 3 4 STORAGE In order to ensure the accuracy of the measurements after a period of storage in extreme environmental conditions wait until the apparatus is back to normal measuring conditions see environmental specifications listed in paragraph 13 4 MARVR2250 4 INSTRUMENT DESCRIPTION LEGEND 1 Display 2 Function Keys 3 Rotary switch y 3 z MAS 0 8 W HARR START STOP CIES FORE ie se y Multifunction Keys ON OFF and backlight key Press for a few seconds to switch ON the instrument press it briefly to activate the backlight function This key is used to start and stop the measurement This key allows you to save the result displayed This key has a double function It is the confirmation key for the configuration menu and it allows you to freeze the displayed results using the ANALYZER function This key opens the General Configuration Menu This key allows you to quit the configuration menu or the selected working mode MARVR2250 4 1 DISPLAY DESCRIPTION The display is a graphic module with a resolution of 128 x 128 pixels The first line of the display shows the function selected and th
37. UNDING GROUNDING ENSURE ENSURE SAFE SAFE 0 O O WORKING NO WORKING Direct Leakage Current measurement in Direct Leakage Current measurement in a single phase system a three phase system 4 The Instrument shows in real time the values present at the inputs Example of screen AUX Inl 23 mA Example of Input Signal 1 In1 PG ma 5 Press this key to enable disable the HOLD function When the HOLD function is enabled the word g MB is displayed This key is disabled during a recording It is not possible to run a recording if this function is enabled Eg 6 The displayed result can be stored by pressing the SAVE key twice see paragraph 8 1 56 MARVR2250 6 7 LEAKAGE CURRENT RECORDING Before starting a recording we recommend the user checks that real time values are correct and then follow the measurement procedure described in paragraph 6 6 In addition it is fundamental that instrument settings correspond to the accessories in use For this we recommend that the user checks the instrument s settings before executing an AUX recording Please check the RECORDER CONFIG settings as follows MENU Press to enter the MENU mode and change the instrument settings It is not possible to enter the configuration MENU during a recording or an energy measurement START STOP Press to record the selected parameters according to the instrument s settings see chapter 9 6 7 1 AUX Basic s
38. VR2250 Instruction Manual MARVR2250 TABLE OF CONTENTS 1 SAFETY PRECAUTIONS AND PROCEDURES sisesssecessstsccsssscsseststretarstenstasdncssnsnsnersnststestnstuertrandtinseenseacis 4 A ANNAN 4 12 Preliminary AS a ee et Tenet grt pre rete rat EE Ceres emery ner 4 ESA a earths Gite A A 5 O AO 5 2 GENERAL DESCRIPTION cususicinnaniiai daa 6 2 WMPOGUCUON asnan na anita da 6 22 FUNCION Saa salis 6 3 PREPARATION FOR USE sinsranancacair ce 7 re dar RN 7 3 2 Power SUPDPIYs vas lt ciesescescusvsassvsacsconsnstenczsesnsasdevtvesenesasazieuvargeonsds a neitieasananettinctaagd net iaa 7 O 8 no e eee ene ee nen 8 4 INSTRUMENT DESCRIPTION isssissacstssstecisecsseccncosoecssansnentssnoresassecroresasdednasenseettvaiaeatisantessisnteersseasnacareuaboniia 9 4 1 Display Description cccccecesesesesecscsesesesceesesesesesesnsnsnsacacececececesensseacacscensususnsacacececececeneaseeeeetesensesssenensnsneneatess 10 AZ MMMM ANS CHO GM ORAR 10 4 3 A A 10 5 INIMALSETTINOS iii eiiasi 11 5 1 HOw to Adjust the di at 11 5 2 IIA 11 5 3 How to Set the Language A cd coast eaklabcecatha ce tiata cp culesataal catecasdteadeckbeas 11 PP is ages testabeetesetidestag E A 12 6 SAFETY TEST FUNCTION Sarria s 13 6 1 LOWQ Continuity Test with 200mA Test QUITO Lessing 13 6 1 1 Calibrating the test leads CAL MOE ooocococniciicicnicconnccnnnrrr rc 14 6 1 2 Measurement Procedure cio idad 16 6 1 3 Results of AUTO mode iii Aaa 16 6 1 4 Results
39. Yellow Connections for measuring the resistance between an extraneous conductive part and the earth system START sto 3 Press the START key The instrument starts the test At the end of the test 05 06 01 Earth Resistance value the instrument emits a expressed in Q double sound signal indicating that the 0 7 7 Q Wattage value of electrical test completed 7 noise correctly and displays Test 04 RAVG 0 HA Number of test a screen similar to this eae Average Value of Earth 3 W Resistance calculated over l the Number of tests 3 Point Working mode FUNC CLR displayed 4 The instrument will automatically show the average value of the earth resistance Press F2 to RESET this value and the test counter Eg This result can be stored by pressing the SAVE key twice see paragraph 8 1 50 MARVR2250 6 5 2 Measurement procedure and results of p mode 1 Select p measurement mode by using the F1 key 2 Select the distance d between the earth rods by using the F3 and F4 keys 3 Connect the Red Green Yellow and Black connectors of the single cables to the corresponding input terminals of the instrument B1 B2 B3 B4 Instrument connection for Earth resistivity measurement Siop 4 Press the START key The instrument starts the test At the end of the test the instrument emits a double sound signal Earth resistivity value indicating that t
40. about 5 minutes from the last key press or switch rotation the instrument starts a procedure to save the batteries ECONOMY MODE the instrument keeps recording but the display is turned off Before starting a recording the operator should first evaluate the state of the equipment decide what to record and set the instrument accordingly 86 MARVR2250 9 2 SETTING TYPICAL CONFIGURATIONS In order to facilitate this task the instrument is provided with the two pre set recording modes 1 Default Configuration this is comprehensive and should fit most cases 2 Typical Configuration it is possible to select recording with pre set parameters for the following situations EN50160 Setting parameters for Network Quality in compliance with EN 50160 standard SURGES amp DIPS Setting parameters for Voltage Anomalies detection surges dips break etc HARMONICS Setting parameters for Harmonic Analysis of Voltage and Current START UP Setting parameters for Start Up motors and electrical devices POWER amp ENERGY Setting parameters for Power and Energy measurements 9 2 1 Default Configuration The default configuration consists of the following parameter settings v ANALYZER CONFIG System SINGLE Frequency 50Hz Current Range 1000A Clamp Type STD TV Ratio 0001 Password DISABLED Y RECORDER CONFIG Start MANU the recording is started 1 minute after pressing the START STOP key Stop
41. act voltage as well as the Ra earth resistance N B The AUTO mode executes the test automatically with phase 0 and 180 RCD Type 0 Current Waveform 180 Current Waveform AC type According to standard practice it is recommended to perform the RCD test both with phase 0 and with phase 180 even with non AUTO modes If the RCD under test is type A which means sensitive to both AC and undirectional pulsing leakage currents it is advisable to perform the test both with sine wave and undirectional pulse current with phase 0 and 180 24 MARVR2250 The F2 key selects one of the following rated tripping currents of the RCD which can be shown cyclically when pressing the key 10mA 30mA 100mA 300mA 500mA The F3 key permits to select the RCD type which can be shown cyclically when pressing the key ANo general RCD AC type sensitive to sine leakage current TAC AS general RCD A type sensitive to pulsating leakage current ANY S selective RCD AC type sensitive to sine leakage current e M s selective RCD A type sensitive to pulsating leakage current Note ifthe test is performed on general RCDs the symbol S is NOT displayed Note according to EN61008 the test on selective RCDs requires an interval between the tests of 60 seconds 30 seconds in case of tests at n A timer is displayed indicating the waiting time for each step Example Test with AUTO mode on a RCD with l n
42. ages displayed see Error Reference source not found The following keys are enabled E F1 F2 F3 F4 SAVE ENTER HOLD MENU START STOP to select the HARMONIC mode see paragraph 7 5 3 to select the WAVE mode see paragraph 7 5 4 to select the previous next function respectively to save a record of Smp type in instrument memory see paragraph 8 2 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 9 75 MARVR2250 7 5 3 HARM mode On selecting the HARM mode a screen similar to this will be displayed according to the settings made as per paragraph 7 1 The screen shows the harmonics of the current 27 09 00 LPS be Example of screen The symbols used are described in Table 2 For messages displayed see Error Reference so
43. al Power Supply Adapter FUNC 7220 LOOP 05 06 01 VP N P PE 1v A FRO 50 0HZ VP PE i Q OV 50V FUNC 7220 UL LOOP 05 06 01 P PE FUNC Z20 A Freq 50 0HZ VP N 401V Q VP PE 230V HIGH VOLTAGE 50V UL NO VOLTAGE detected HIGH VOLTAGE detected 44 MARVR2250 A screen similar to this LOOP 05 06 01 is displayed when the phase conductor has eS been reversed with the a neutral one The instrument does not FRO 50 0HZ perform the test VP N 231V VP PE OV Exchange the red cable with ae ene Phase and Neutral conductors are reversed P PE 50V FUNC Z2Q UL A screen similar to this LOOP 05 06 01 is displayed when the phase conductor has se e 0 been exchanged with F A the protective conductor The instrument does not FRO 50 0HZ perform the test VP N 1V VP PE 230V Exchange the r le e as Phase and Protective un vom PEN conductors are reversed FUNC Z2Q This screen is displayed LOOP 05 06 01 when in a 230V Phase to Phase System the E black conductor was aa Q reversed with respect to the jreen one PROSESO ONE The instrument does not VP N 131V VP PE 227V perform the test Neutral and Protection Reverse the black and gt conductors are reversed green conductors P N FUNC Z2Q
44. ary perform the test upstream of the protection or RCD Never disconnect the test leads when the message MEASURING is displayed 40 MARVR2250 LOOP 05 06 01 Value of phase to earth At the end of the test resistance expressed in Q the instrument emits a 1 0 7 double sound signal Q Value of the phase to earth indicating that the test dd prospective short circuit pomploted sorractli lis See cred reg 50 and displays a screen VP N 231V Vp PE 231V according to the following similar to this formula P PE FUNC Z2Q Working mode Formula for calculation of prospective short circuit current U Loe X Z pg Where Un Nominal phase to neutral voltage 127 if Vmeas 150 230 if Vineas gt 150V lt 250 E This result can be stored by pressing the SAVE key twice see paragraph 8 1 41 MARVR2250 6 4 4 Measurement procedure and results of Ra mode 1 Select Rat mode by means of the F1 key 2 Connect the Red Green and Black connectors of the three terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1 B3 B4 Instrument connection for P PE in a 400V three single phase System phase system 3 Connect the mains plug into a 230V 50Hz socket or the croc clips to the conductors of the three phase system see previous pictures 4 If possible disconnect all low impedance loads downstream of the p
45. ayed according to the settings made as per paragraph 7 1 The screen shows the harmonics of the voltage MARVR2250 27 09 00 17 35 12 Example of screen The symbols used are described in Table 1 For messages displayed see Error Reference source not found The displayed histograms represent the harmonic content of the voltage under test The value of the first harmonic h01 fundamental at 50Hz is not represented in scale along with the other harmonics in order to maximize the display In case voltage and current are connected to the instrument inputs negative values of the harmonics represented under the horizontal axis indicate that such voltage harmonics are generated by the load The following keys are enabled o 4 4 F3 F4 F2 ESC SAVE ENTER HOLD MENU START STOP to move the cursor left and right to select a harmonic At the same time the values relevant to the order number of the selected harmonic and to the corresponding absolute and relative values calculated on the basis of the fundamental are updated to display the page of the harmonics h01 h24 symbol h24 or that of the harmonics h25 h49 symbol h49 to return to METER mode see paragraph 7 4 2 to save a record of Smp type in instrument memory see paragraph 8 2 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disabl
46. ccsscsccssscstssecncescsreencansacnseantsedeccneenciessseeeancutucneteiseetecanseasdesesvensecnesea cite 98 134 Technical FeatireS aria roo dla 98 13 4 1 ANALYZER and AUXTUNCIONS visir a Ad 100 a A A as aah A cin AC te 101 RPA ii ai ac 101 13 2 2 Safety TESE onenac died alain cee a iia ied a sidina cee aia ied ovale And dela ied ative een aeniinenda 101 13 2 32ANALYZER id went elie ave A ha iend a elise ee adieu geile eae Ree 101 13 3 GENErAl SPSCHICALIONS sonr itini eea sesevesavetutadecosdesevayer sede EA A AREARE a E ea AE ENE ari Raae 102 ERA n a seid R EE E EEEE E R 102 13 3 2 POWER SUPPLY inssin an a a a a dive a a a aN 102 MARVR2250 13 3 3 DISPIAY OPPPOOAA OOO avin ances diene ciate die anita diet anit adie asia died awit na siete dive EE site average 102 ER MOMONY E asied aviena ise anion asiee aston a sien anata sien asneite wien ancien sited acto aston aston sien asad agiea 102 3 44 ENVIRONMENT ssl a a dias abana coete Tube vibedueedl as 102 13 0 ACCESSORIES ia a A A AO AA a A 103 TASERVIEE atari 104 AA TEV ATRRAINTI YG ccsdstecs andalocio sado nica alos platanos 104 104 TAQ SSER VG E it ds 104 15 APPENDIX 1 MESSAGES DISPLAYED o recrear 105 16 APPENDIX 2 RECORDABLE PARAMETERS SYMBOLG ccscssssssssstssseeeeesessrsesesssneneseesneeeeeeees 106 MARVR2250 1 SAFETY PRECAUTIONS AND PROCEDURES 1 1 FORWARD This instrument conforms with safety standards EN61557 and EN 61010 1 relating to electronic
47. ce is not correct check if the clamps are properly connected check the Phase Sequence connection ERR CONNECTION The instrument has detected a wrong connection to voltage inputs Check the voltage connections Error Vref The user set a voltage reference not compatible with Check Voltage Reference set in CONFIG voltage at instrument s input RECORDER ERR SYNC The System Frequency is out of range Check the System Frequency check setting in ANALYZER CONFIG Selection Error There is a mismatch between the parameter enabled and the parameter selected for an AUX recording Check the parameter enabled in AUX position and the selected parameter for recording Error1 Error 5 The instrument memory is damaged Contact Martindale Electric 105 MARVR2250 16 APPENDIX 2 RECORDABLE PARAMETERS SYMBOLS Symbol Description V1 Voltage RMS value freq Network frequency 11 Current RMS value DC Continuous component of voltage or current h01 h49 Harmonic 01 Harmonic 49 of voltage or current ThdV Factor of total harmonic distortion of the voltage Thdl Factor of total harmonic distortion of the current P1 Active power Qi Inductive Reactive power Qic Capacitive Reactive power S1 Apparent power pf1 Power factor dpf1 coso Ea1 Active energy Eri1 Inductive reactive Energy Erc1 Capacitive reactive Energy 106
48. check for any possible damage which might have been caused during transport Should this be the case immediately contact the distributor Check that the packaging contains all the parts listed under paragraph 13 5 In case of discrepancies contact the distributor In the unlikely event that you have to send the instrument back please follow the instructions detailed in section 14 3 2 POWER SUPPLY The instrument can be powered by Y 6 batteries 1 5V AA LR6 series located in the compartment on the back of the instrument not included in the package For battery life see paragraph 13 3 1 Y An external power supply adapter code MARVR2250PSU to be used only for ANALYSIS and AUX function It is recommended that the MARVR2250PSU Power Supply adapter is used for long term measuring WARNING For your own safety it is not permitted to use the external power supply adapter during Safety Test LOWQ MQ RCD LOOP EARTH rotary switch positions If you press the START button the Instrument will show the message REMOVE POWER The symbol MW shows the battery status If it is completely black the batteries are fully charged while the L___ symbol indicates weak batteries When the batteries are too low to execute the test the instrument will show a warning message In this case interrupt testing and replace batteries following the procedure described under paragraph 12 2 The instrument is capable of keeping the data stored e
49. circuit current indication of phase rotation sequence EARTH Measurement of Earth Resistance and Resistivity using earth rods AUX For future use ANALYZER The instrument allows the following operations v Display in real time the electrical parameters of single phase systems and the harmonic analysis of voltage and current Y Conduct a direct Energy measurement without memorising Y Memorise pressing SAVE key the sampled values of the parameters present at instrument input generating an Smp record in instrument memory It will be possible to analyse the memorised data ONLY by transferring the data to a PC Y Record simultaneously pressing the START key after setting parameters RMS values of voltage current corresponding harmonics active reactive and apparent powers power factors and cos active reactive and apparent energies voltage anomalies voltage sag and surge with 10ms resolution It will be possible to analyse the recorded data ONLY by transferring the data to a PC WARNING f Please note the difference between memorise and record These terms q q 44 will be used repeatedly in this manual Please focus on their definitions and distinctions MARVR2250 3 PREPARATION FOR USE 3 1 INSPECTION This instrument has been checked mechanically and electrically prior to shipment Every care has been taken to ensure that the instrument reaches you in perfect condition You are recommended however to
50. cted to B4 black auxiliary earth rods conductor has not 3 W been inserted into FUNC CLR pebbly or poor conductive ground 52 The message Rp HIGH indicates that the instrument cannot produce the minimum current necessary for the measurement Check that the terminals are correctly connected and the auxiliary earth rod connected to B2 yellow conductor has not been inserted into pebbly or poor conductive ground The message Rp and Re HIGH indicates that the instrument cannot produce the minimum current necessary for the measurement Check that the terminals are correctly connected and that the auxiliary earth rod connected to B2 yellow conductor and B4 black conductor have not been inserted in a pebbly or poor conductive ground Test 04 RAVG 0 740 3 W FUNC CLR Test 04 RAVG 0 74 A Rp and Rc HIGH 3 W FUNC CLR MARVR2250 Message Rp HIGH Check auxiliary earth rods Message Rp and Rc HIGH Check auxiliary earth rods oe THE PREVIOUS RESULTS CANNOT BE SAVED 53 MARVR2250 amp Ifthe instrument detects a resistance value higher than Message gt 1999 means that 19990 it will display a the resistance value is higher screen similar to this than the maximum gt 1 9 9 90 measurable Vd 1V Test 04 RAVG 0 740Q 3 W FUNC CLR e This result can be
51. d AUX functions Graphic with backlight 128 x128 73mm x 73mm 999 measurements 2MByte with 63 channels selected and Integration Period 15min more than 30 days 23 5 C 0 40 C lt 80 10 60 C lt 80 102 MARVR2250 13 5 ACCESSORIES Standard accessories Description e GB 13A cable with 3 terminals Set with 4 cables 2m 4 croc clips Management Software RS232 Optical Serial Cable Zip Carrying Case Calibration Certificate ISO9000 User s Manual Optional Accessories Description Code e Set with 4 cables and 4 earth rods MARER4KIT e External power supply adaptor MAR2250PSU e Flexible current clamp 1000A 3000A 103 MARVR2250 14 SERVICE 14 1 WARRANTY Faults in manufacture and materials are fully guaranteed for 24 months from date of invoice and will be rectified by us free of charge provided that the unit has not been tampered with and is returned to us with its housing unopened Damage due to dropping abuse or misuse is not covered by the guarantee Nothing in these instructions reduces your statutory rights NOTE The manufacturer reserves the right to modify the product specifications and prices if this is aimed at technological improvements The content of this manual cannot be reproduced in any form whatsoever without prior authorisation of the manufacturer 14 2 SERVICE Repair amp Service There are no user serviceable parts inside this unit Please return to Martinda
52. de if the instrument detects that two phases are connected together it displays a screen similar H FRQ 50 0HZ VR S 407V to this VS T 0 V VT R 407V AN Two phases are connected together ty PHASE ROTATION FUNC THE PREVIOUS RESULTS CANNOT BE SAVED 47 Ifin modes P P and P N the instrument carries out the test and detects a resistance higher than 199 9Q a screen similar to this displayed Loop 05 06 01 gt 199 90 A FRQ 50 0HZ VP N 1V Vp PE 0V P N FUNC 7220 MARVR2250 Message gt 199 9 means that the resistance measured is higher than the maximum measurable we This result can be stored pressing the SAVE key twice see paragraph 8 1 lf in modes P PE Ra the instrument carries out the test and detects a resistance to be higher than 1999Q a screen similar to this is displayed LOOP 05 06 01 gt 1999 a A FRO 50 0HZ VP N 1V Vp PE OV Rat 50V FUNC UL Message gt 1999 means that the Resistance measured is higher than the maximum measurable we This result can be stored by pressing the SAVE key twice see paragraph 8 1 Inthe mode if the voltage of one or more phases is too low the instrument will show a screen similar to this RTS FRO 50 0HZ VR S 391V VT R OV NOT CORRECT Q FUNC VS T OV Phase sequence
53. e date and time If not correct these can be set according to the procedure described at paragraph 5 2 On the top right corner of the display you can always see the battery indicator and if the external power supply adapter code MARVR2250PSU is connected the corresponding symbol is displayed LOWQ 05 06 01 27 09 00 17235212 a VOLTAGE SINGLE PHASE Q v1 230 2 V R R Vpkl 325 5 V Sa 20 Q Thdv 0 0 mA mA freq 50 0 Hz AUTO 0 11Q FUNC CAL HARM WAVE These symbols will be omitted in the following illustrations 4 2 INITIAL SCREEN When turning on the instrument by pressing ON OFF this screen will appear for a few seconds Veritest 2250 MARTINDALE SN 00000000 V X XX BAUD RATE 57600 CALIBRATION DATE 01 01 06 Here you can see Serial number of the instrument SN Firmware software release V X XX Transmission speed through serial RS232 Baud Rate Calibration date CALIBRATION 4 3 BACKLIGHT FUNCTION When instrument is turned on briefly pressing the ON button will enable the backlight The light will be turned off automatically after 5 seconds If the batteries are too low the instrument will automatically disable the backlight function 10 MARVR2250 5 INITIAL SETTINGS On pressing the MENU key the following screen will be displayed MENU GENERAL SAFETY TEST MEMORY ANALYZER MEMORY RESET ANALYZER CONFIG RE
54. e establishes the initial settings of the instrument in ANALYZER function The Current Range parameter is not modified by the reset command The initial settings of the instrument consist of v ANALYZER CONFIG System SINGLE Frequency 50Hz Current range not modified Clamp type STD Transforming ratio of voltage transformers 0001 Password OFF Y RECORDER CONFIG Start MANU the recording is started at 00 sec mark on clock after pressing the START STOP key Stop MAN Integration period 15min Recording of harmonics ON Recording of Voltage anomalies Sag and Surge ON Voltage Reference for Sag and Surge detection 230V Upper Limit for Sag and Surge detection 6 Lower Limit for Sag and Surge detection 10 Selected voltages V1 Selected voltage harmonics THD 01 03 05 07 Selected currents 11 Selected current harmonics THD 01 03 05 07 CO GENERATION OFF Powers Pf and cos selected P1 Q1i Q1c S1 Pf1 DPf1 Energies Ea1 Eri1 Erc1 Es1 The RESET command will not erase the instrument s memory 12 MARVR2250 6 SAFETY TEST FUNCTIONS 6 1 LOWQ CONTINUITY TEST WITH 200mA TEST CURRENT The measurement is performed according to EN 61557 2 and VDE 0413 part 4 WARNING Before carrying out the continuity test make sure that there is no voltage at the ends of the conductor under test gt Turn the switch to the LOW Q position This key permits you to select one of the following m
55. e measuring cable ends making sure that the conductive parts of the croc clips make a good contact to each other see previous picture 3 Press the F2 key The instrument carries out the calibration WARNING Never disconnect the test leads when the message MEASURING is displayed A numerical value LOWQ 05 06 01 in this field means that the instrument ee Q has been n i calibrated this Q a value remains on mA ee the display for ja TA any further Q measurement AULO O even though the FUNC CAL unit is switched off and on again 4 At the end of the test the result is stored and used as an OFFSET that is to say that it is subtracted from any continuity test carried out for all the subsequent measurements Note The instrument performs the calibration only if the resistance of the test leads is lower than 5Q 14 TEST LEADS MARVR2250 Before each measurement always make sure that the calibration is applicable to the test leads in use During a continuity test if the resistance value free of calibration that is the resistance value is less than the calibration offset value is negative the symbol A is displayed The calibration resistance value stored in the instrument memory is not applicable to the test leads in use therefore a new calibration must be performed 6 1 1 1 To remove a stored calibration you must perform the calibration procedure with a
56. e the HOLD function of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 9 72 MARVR2250 7 4 4 WAVE mode On selecting the WAVE mode a screen similar to this will be displayed according to the settings made as per paragraph 7 1 The screen shows the waveform of the voltage 27 09 00 17 73D 312 Example of screen The symbols used are described in Table 1 For messages displayed see Error Reference source not found The following keys are enabled ESC to return to METER mode see paragraph 7 4 2 SAVE to save a record of Smp type in instrument memory see paragraph 8 2 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible t
57. eading 2 APPARENT POWER 1 999 9MVA 0 1MVA digits 1000 9999MVA 1MVA 0 999 9Wh 0 1Wh ACTIVE ENERGY 1 999 9kWh 0 1kWh Class 2 EN61036 1 999 9MWh 0 1MWh 1000 9999MWh 1MWh 0 999 9VARh 0 1VARh REACTIVE ENERGY 1 999 9kVARh 0 1KVARh Class 3 IEC1268 1 999 9MVARh 0 1MVARh 1000 9999MVARh 1MVARh e Cos y MEASUREMENT SINGLE PHASE SYSTEM Cos Q Resolution Accuracy 0 20 0 6 0 50 0 01 0 7 0 80 1 0 e VOLTAGE AND CURRENT HARMONICS MEASUREMENT SINGLE PHASE SYSTEM Range Resolution Accuracy DC 25H 5 2 digits 26H 33H 0 1V 0 1A 10 2 digits 34H 49H 15 2 digits Harmonics values are null under fixed threshold DC its values are null if it is lt 2 of Fundamental or is lt 2 of Full Scale clamp 1 Current Harmonic its values are null if it is lt 0 2 Full Scale clamp 2 49 its values are null if it is lt 2 of fundamental or is lt 2 of Full Scale clamp LEAKAGE CURRENT MEASUREMENT Range Resolution mA Accuracy Input Impedance Overload Protection 0 5 999 9mA 0 1mA 5 Reading 2digits 200kQ 5V During a recording the instrument will detect only Current gt 5mA with Resolution 1mA 100 MARVR2250 13 2 STANDARDS 13 2 1 General Safety EN 61010 1 A2 1997 Protection classification Class 2 Double Insulation Pollution degree 2 Degree of Protection IP50 Over Voltage Category C
58. easuring modes E E Mode AUTO the instrument carries out two measurements with reversed polarity and displays their average value This mode is recommended for the continuity test Mode RT measurement with positive polarity and adjustable test time The operator can set a measuring time long enough to permit him to move the protective conductors while the instrument is carrying out the test enabling detection of any bad connections Mode RT measurement with negative polarity and adjustable test time The operator can set a measuring time long enough to permit him to move the protective conductors while the instrument is carrying out the test enabling detection of any bad connections This key executes the CAL mode compensation of the resistance of the test leads used for the measurement WARNING If the resistance is lower than 5Q including the resistance of the test leads the continuity test is conducted with a test current higher than 200mA If the resistance is higher than 5Q the continuity test is conducted with a current lower than 200mA We recommend that you check the calibration of the test leads before executing a measurement according to the next paragraph 6 1 1 13 MARVR2250 6 1 1 Calibrating the test leads CAL Mode 1 Connect the Red and Black test leads to B1 and B4 input terminals respectively Connection of the test leads during calibration procedure 2 Short circuit th
59. ect the optical serial cable that is shipped with the instrument to a PC COM port The available transmission speeds are the following 9600 19200 57600 default value The value of the transmission speed Baud Rate is displayed on the initial screen immediately after turning on the instrument see paragraph 4 2 The value of this parameter can be modified only with the management software For download instructions please refer to software help file In order to transfer the memorised data from the instrument to the PC the following procedure must be followed after software installation 1 2 na Switch ON the instrument and wait until the initial screen disappears the rotary switch position is not relevant Connect the optical serial output of the instrument to the serial output of the PC through the original optical serial cable Run the program Select the Download command Refer to software help ON Line for further instructions 96 MARVR2250 12 MAINTENANCE 12 1 GENERAL INSTRUCTIONS The tester you have purchased is a precision instrument Please follow the instructions for use and storage detailed in this manual to avoid any possible damage or danger during use Do not use this tester under unfavourable conditions of high temperature or humidity Do not expose to direct sunlight Be sure to turn the tester off after use If the instrument is not to be used for a long period you are recommended to r
60. emove batteries to avoid acid leakage which may damage the internal circuits of the instrument 12 2 BATTERY REPLACEMENT The symbol HF shows the battery charge If it is completely black the batteries are fully charged while the L___ symbol indicates flat batteries When the batteries are too low to execute the test the instrument will show a warning message Replace the batteries following the procedure for battery replacement The instrument is capable of keeping the data stored even though batteries are not installed The instrument Date and Time settings are not lost if you change the batteries within 24 hours A CAUTION Before replacing batteries make sure that all test leads have been disconnected from input terminals Switch OFF the instrument Remove all the test leads from the input terminals Unscrew the fixing screw from the battery compartment and remove cover Remove all batteries replacing them with 6 new ones of the same type 1 5V LR6 AA AM3 MN 1500 respecting the polarity signs Refit the battery compartment cover TO iat a 12 3 INSTRUMENT CLEANING Use a soft dry cloth to clean the instrument Never use wet cloths solvents water etc 12 4 END OF LIFE Caution this symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal 97 MARVR2250 13 TECHNICAL SPECIFICATIONS 13 1 TECHNICAL FEATURES Accuracy is indicated as
61. en circuit Test Voltage lt 1 3 x Nominal Test Voltage Short Circuit Current lt 6 0mA with 500V Test Voltage Nominal Test Current 500V gt 2 2mA with 230kQ other gt 1mA with 1kQ Vnom e RCD TEST ON RCD DEVICES Nominal Test Current IAN 10mA 30mA 100mA 300mA 500mA RCD type AC A General and Selective Phase to Earth Test Voltage 100V 250V 50 Hz Frequency 50Hz 0 5Hz Tripping Time Measurement tn Range ms Resolution ms Accuracy Yal ln 1 999 2 ln 1 200 general 1 250 selective 1 2 Reading 2digits 5 ln RCD 1 50 general 1 160 selective Contact Voltage Ut Range V Resolution V Accuracy O 2U tim 0 1 0 5 Reading 3 digits Ut LIM UL 25V or 50V Global Earth Resistance Measurement avoiding RCD tripping Range Q Resolution Q Accuracy IAN 1 1999 1 0 5 Reading 3 digits Test Current 0 5 IAN set Tripping Current Measurement IAN RCD Type Range l n mA Resolution mA Accuracy IAN IAN lt 10mA AC 0 5 1 4 lw A 0 5 2 4 Ln 0 1 Ln 0 5 lan IAN gt 10mA AC 0 5 1 4 Iw A 0 5 2 In 98 FREQUENCY MEASUREMENT MARVR2250 Range Hz Resolution Hz Accuracy 47 0 63 6 0 1 0 1 Reading 1 digit RCD and LOOP function are active only for 50Hz 0 5Hz frequency e VOLTAGE MEASUREMENT RCD LOOP PHASE ROTATION Range V Resolution V Accuracy 0 460V 1
62. ent detects the external power supply adapter connected the 0 instrument will display a ca E de screen similar to this Eno o mA mA Disconnect the External AUTO 0 110 Power Supply Adapter FUNC CAL Ifthe terminal voltage is LOWQ 05 06 01 higher than 15V the instrument does not O carry out the test and Tem m displays a screen similar R R ATTENTION the test was to this for 5 seconds me PE not performed because of voltage at the terminals AUTO 0 110 FUNC CAL MARVR2250 n case that LOWQ 05 06 01 RcaALiBRATION gt RMEASURED the instrument displays the screen alongside 0 0 00 ATTENTION RcatiBRATION gt RMEASURED R R 000 0 000 19mA 219mA AUTO 0 110 FUNC CAL No THE PREVIOUS RESULTS CANNOT BE SAVED Se f the value of mene 05 06 01 resistance is higher than 5Q but lower than A 5 170 A Resistance value higher 99 90 the instrument than 59 emits a long sound n a B signal and displays a 209mA 209mA Test current screen similar to this AUTO 0 110 FUNC CAL sue The displayed result can be stored pressing the SAVE key twice see paragraph 8 1 lf the value of the resistance is higher than 99 90 the Resistance value higher than instrument emits along A4 gt 99 9 99 90 sound signal and AENA os R R displays a screen
63. ent will record ONLY the powers and energies absorbed OO P1 Active Power P1 Q1i Inductive Reactive Power Q1c Capacitive Reactive Power anaie S1 Apparent Power S1 Pf1 Power factor O DPft1 COS PH dPf1 Ea1 Active energy Eat Eri1 Inductive reactive energy Eri1 Erc1 Erc1 Capacitive reactive energy The value of the network frequency is automatically selected if the voltage is selected The symbols i and c stand for reactive powers Q power factors Pf and cose dpf inductive and capacitive respectively When selecting a power factor Pf or a cos dPf for recording the inductive value and the capacitive value will be recorded separately For messages displayed see Error Reference source not found 69 MARVR2250 7 3 ANALYZER FUNCTIONS For basic use the main working mode of the ANALYZER mode can be selected by means of F3 and F4 VOLTAGE function CURRENT function POWER function ENERGY function to be used to display voltage and corresponding harmonics see paragraph 7 4 to be used to display current and corresponding harmonics see paragraph 7 5 to be used to display of all the parameters measurable by the instrument voltage current active reactive and apparent power power factor cosq and energy see paragraph 7 6 to be used to display active reactive and apparent power power factor cos and energy see paragraph 7 7 More prac
64. ere Un phase to phase voltage 127 if Vmeas lt 150 230 if Vmeas gt 150V lt 260 400 if Vmeas gt 260 swe This result can be stored by pressing the SAVE key twice see paragraph 8 1 39 MARVR2250 6 4 3 Measurement procedure and results of P PE mode 1 Select P PE mode by means of the F1 key 2 Connect the Red Green and Black connectors of the three terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1 B3 B4 Instrument connection for P PE in a 400V three Instrument connection for P PE test in a 230V phase system single phase System Instrument connection for P PE in a 400V three phase system without Neutral conductor 3 Connect the mains plug into a 230V 50Hz socket or the croc clips to the conductors of the three phase system see previous pictures 4 The key F4 permits to select one of the following limit values for the contact voltage which can be shown cyclically when pressing the key SOV default 25V 5 Press the START key once to execute a test injecting a current in phase with ositive half wave of the voltage Press the START key twice to execute a test injecting a current in phase with negative half wave of the voltage WARNING The P PE measurement in a 230V System uses a test current of 6A approx This may cause the tripping of protective devices with nominal value lower than 10A and will cause the tripping of an RCD device If necess
65. est after de energizing the circuit under test and all loads see above 5 By using F2 select the test voltage suitable for the type of test to be carried out see Table 1 The values that can be selected are 50V test on telecommunication system 100V 250V 500V 1000V 19 MARVR2250 Systems SELV or PELV 250VDC gt 0 250MQ CEI 64 8 6 Systems up to 500V 500VDC gt 0 500MQ Systems over 500V 1000VDC gt 1 0MQ CEI 64 8 4 Floor and wall insulation 500VDC gt 50kQ se V lt 500V Floor and wall insulation in systems over 500V 1000VDC gt 100kQ se V gt 500V EN60439 Electrical panel boards 230 400V 500VDC gt 230kQ EN60204 Electrical equipment of machines 500VDC gt 1MQ Table 1 Table for test voltages and the corresponding limit values for reference 50VDC 99 9MQ 100VDC 199 9MQ 250VDC 499MQ 500VDC 999MQ 1000VDC 1999MQ Table 2 Table of maximum resistance values which can be measured in MQ mode depending on the rated voltage selected 6 If the TMR mode was selected use the F3 and F4 keys to set the duration of A the test WARNING Never disconnect the test leads from the circuit under test when the message MEASURING is displayed as the circuit under test may remain charged at a dangerous voltage The instrument has an internal safety resistor which is connected to the output terminals before the end of the test in order to remove any stored cha
66. etting RECORDER CONFIG Place the rotary switch in the AUX position press the MENU key use the F1 F2 keys to select the RECORDER CONFIG item and press the ENTER Key WARNING It is not possible to enter the MENU during a recording or a Real Time Energy measurement MENU GENERAL SAFETY TEST MEMORY ANALYZER MEMORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE y 1 In RECORDER CONFIG mogde it is possible to carry out the following operations e Setting of Start Stop recording mode AUTO or MANUAL and the hour and date of Start Stop in AUTO mode e Setting of Integration Period selectable from 5 sec to 60 min Press ENTER to confirm each setting or ESC to exit from RECORDER CONFIG menu The pages of the RECORDER CONFIG can be schematised as follows 57 MARVR2250 To select AUTOMATIC start stop mode RECORDER CONFIG place the cursor on MANU and select AUTO mode by using F3 or F4 START The ti d dat then displ y The time and date are then displayed STOP To revert to MANUAL mode place the MANU cursor on AUTO and select MANU mode using F3 or F4 AE INT PERIOD 15min Use the multifunction keys F1 and F2 to position the cursor on the desired word and then use the multifunction keys F3 or F4 to modify the value Press ENTER to confirm and keep the settings made Press ESC to leave the Menu without modifying the existing parameters T
67. g a recording or an energy measurement 4 START STOP to record selected parameters according to the instrument s settings see chapter 9 17 MARVR2250 7 6 POWER FUNCTION This function permits a display in real time of the RMS value of AC DC voltage the peak and ThdV value and the waveform of the voltage the RMS value of AC DC currents the peak Thdl value and the waveform of the current Furthermore the instrument calculates and displays the value of the active reactive and apparent power and the value of the power factors and coso 7 6 1 Symbols The position POWER has two working modes v METER v WAVE For voltage and current harmonics see paragraphs 7 4 3 and 7 5 3 respectively These modes will be described in detail in the next paragraphs The symbols used are described below Symbol Description V1 Voltage RMS value freq Network frequency 11 Current RMS value P1 Active power Q1 Reactive power S1 Apparent power Pf1 Power factor dpf1 cos Table 3 Symbols used in the POWER function The symbols i and c stand for reactive powers Q power factors Pf and cose dpf respectively inductive and capacitive 78 MARVR2250 7 6 2 METER mode In this mode the instrument shows a screen similar to this according to the settings made as per paragraph 7 1 27 09 00 17235312 POWER SINGLE PHASE v1 230 0 V I1 145 3 A P1 32 91 KW Q1 5 767 KVAR si
68. g software After selecting ANALYZER MEMORY from the Main Menu the screen below will be displayed ANALYZER MEMORY 01 Smp 02 01 01 23 02 Rec 02 01 02 01 03 R amp a 02 01 02 01 04 Rec 02 01 02 01 05 R amp a 02 01 02 01 06 Rec 04 01 05 01 DATA SIZE 0 11Mb REC TIME 0d 06h T L LAST ALL Example of ANALYZER MEMORY screen Y Rec recordings with respective Start and Stop dates expressed in the format day month start day month stop without Voltage Sag and Surge detection Y R amp a recordings with respective Start and Stop dates expressed in the format day month start day month stop with Voltage Anomalies Sag and Surge detection Smp values of the samples of voltage and current stored by pressing SAVE DATA SIZE dimensions of the data saved in the instrument memory REC TIME amount of memory available calculated on the basis of the parameters selected for recording SSS The maximum quantity of Rec R amp a Smp which can be stored by the instrument is 35 The following keys are enabled F1 F2 ifthe number of Rec tR amp a Smp recordings is higher than 7 use these keys to select recordings stored in the instrument memory F3 to cancel the last recording performed eo F4 to cancel all the recordings performed ESC to quit this mode 95 MARVR2250 11 CONNECTING THE INSTRUMENT TO A PC In order to connect the instrument to a PC you must conn
69. harmonics active reactive and apparent powers power factors and cose active reactive and apparent energies voltage anomalies voltage sag and surge with 10ms resolution It will be possible to analyse the recorded data ONLY by transferring the data to a PC Y Record simultaneously pressing the START key values of Voltage and Current values coming from test leads and clamp using Typical Configurations with pre programmed parameters inside the meter see paragraph 9 2 It will be possible to analyse the recorded data ONLY by transferring the data to a PC It is fundamental that the instrument settings correspond to the installation type under test and the accessories in use We recommend that the user checks the instrument s settings before executing an ANALYSIS measurement Select the ANALYZER position on the rotary switch On pressing the MENU key the following screen will be displayed MENU GENERAL SAFETY TEST MEMORY ANALYZER MEMORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE y 1 It is not possible to enter the MENU during a recording or a Real Time Energy measurement Generally to check the instrument s settings you must check ANALYZER CONFIG and RECORDER CONFIG items 60 MARVR2250 7 1 BASIC SETTING ANALYZER CONFIG Place the rotary switch in the ANALYZER position press the MENU key use the F1 F2 keys to select the ANALYZER CONFIG item and pres
70. he expressed in Qm test completed 1 correctly and displays a screen similar to this Voltage value of electrical noise Test 04 T Number of test pAVG 0 74Q Average value of earth resistivity calculated over the p DIST 2m number of tests displayed FUNC CLR T y p Working mode 5 The instrument will automatically show the average value of the earth resistance Press F2 to RESET this value and the test counter sue This result can be stored by pressing the SAVE key twice see paragraph 8 1 51 MARVR2250 6 5 3 2 W 3 W and p faulty cases Ifthe instrument detects the external power supply adapter connected to the Q instrument it will show a es screen similar to this Test 04 RAVG 0 74Q Disconnect the External Power Supply Adapter 3 W FUNC CLR If the Instrument detects a voltage value higher than 5V the AR 0 instrument will show a reen sim screen similar to this A _ Vd 230V Test 04 RAVG 0 74Q dk VOLT IN INPUT 3 W FUNC CLR Warning symbol voltage noise on input The message Rc HIGH indicates that the instrument cannot produce the minimum current necessary for the measurement ap Check that the es terminals are correctly Test 04 connected and that the RAVG 0 74Q auxiliary earth rod mummy rr Message Re HIGH Check conne
71. he following table shows the description of each function inside the RECORDER CONFIG menu Function Description Advised settings i The recording of all the selected parameters will start at 00 START MAN seconds after pressing START STOP STOP MAN The recording of all the selected parameters will be interrupted manually by pressing START STOP The recording of all the selected values will be started interrupted START AUTO at the set dates and times In order to start the recording the user STOP AUTO will have to press START STOP to set the instrument in Stand by mode until the start date and time previously set The value of this parameter determines every how many seconds the values of the selected parameters will be memorised Available choices 5sec 10sec 30sec 1min 2min 5min 10min 15min 30min 60min 15min INT PERIOD For messages displayed see Error Reference source not found 58 MARVR2250 6 7 2 RECORDING setting of Typical Configurations The following Typical Configurations are selectable via RECORDER CONFIG menu Standard Configuration Description LEAKAGE 11 Setting of measuring and recording mode of Leakage current on 11 channel To activate the above configuration follow this procedure 1 Turn the rotary switch to AUX 2 Press the MENU key Use the F1 key to display the screen below MENU GENERAL SAFETY TEST MEMORY ANALYZE
72. his screen includes START Date and Time STOP Date and Time or Manual Integration Period Actual Number of Elapsed Integration Periods Actual Recording Time Status of Harmonic Flag Status of Voltage Anomalies Flag Number of Voltage anomalies occurred during the recording MAA Oe Mma 92 MARVR2250 9 3 2 Rotary Switch during a recording If you move the rotary switch during a recording the following screen will appear This screen means that a recording is running The instrument will continue to record 9 4 STOPPING A RECORDING OR AN ENERGY MEASUREMENT The instrument uses a protective routine to avoid interruption of a recording or an energy measurement Once a recording or a direct energy measurement see paragraph 7 7 2 has been started with the PASSWORD option enabled about 3 minutes from the last key pressure or switch rotation it is insufficient to press START STOP if a recording is running or F2 if an energy measuring is running to stop the recording it will be necessary to enter the password In order to enter the password which is not changeable press the multifunction keys in the following sequence within 10 seconds F1 F4 F3 F2 In order to enable disable this option see paragraph 7 1 If a wrong password is entered the instrument will display an error message and will repeat the request If no key is pressed after about 10 seconds the instrument returns back to the original screen
73. incorrect Phase voltages incorrect Eg This result can be stored by pressing the SAVE key twice see paragraph 8 1 48 MARVR2250 6 5 EARTH SOIL RESISTANCE AND RESISTIVITY MEASUREMENTS A Wah lt a gt Turn the switch to the EARTH position The F1 key selects one of the following measuring modes which can be shown cyclically when pressing the key Mode 2 W the instrument measures the resistance between 2 points Mode 3 W the instrument measures the resistance using two auxiliary earth rods Mode p the instrument measures the ground resistivity At the end of each test the instrument automatically shows the average value of Earth Resistance or Earth Resistivity calculated on the basis of the measured values The F2 key clears the average value of Earth Resistance or Earth Resistivity and the test counter WARNING Never disconnect the test leads from the circuit under test when the message MEASURING is displayed MARVR2250 6 5 1 Measurement procedure and results of 2 W and 3 W mode 1 Select 2 W or 3 W Earth measurement mode by means of the F1 key 2 Connect the Red Yellow Green and Black cables to the corresponding input terminals of the instrument B1 B2 B3 B4 see possible connections in the following pictures Transf Yellow Connections for 2 point Earth Resistance Connections for 3 point Earth resistance measurement measurement
74. key Stop MANU Integration period 10min Recording of harmonics ON Recording of Voltage anomalies voltage Dips and Surge ON Voltage Reference for Dips and Surge detection 230V Upper Limit for Dips and Surge detection 6 Lower Limit for Dips and Surge detection 10 Selected voltages V1 Selected voltage harmonics THD DC 01 02 03 04 25 CO GENERATION OFF SURGES amp DIPS Y ANALYZER CONFIG System SINGLE Frequency 50Hz Current Range not modified Clamp Type STD TV Ratio not modified Password not modified Y RECORDER CONFIG Start MANU the recording is started 1 minute after pressing the START STOP key Stop MANU Integration period 1min Recording of harmonics OFF Recording of Voltage anomalies voltage Dips and Surge ON Voltage Reference for Dips and Surge detection 230V Upper Limit for Dips and Surge detection 6 Lower Limit for Dips and Surge detection 10 Selected voltages V1 Selected current 11 CO GENERATION OFF HARMONICS Y ANALYZER CONFIG System SINGLE Frequency 50Hz 89 MARVR2250 Current Range not modified Clamp Type STD TV Ratio not modified Password not modified Y RECORDER CONFIG Start MANU the recording is started 1 minute after pressing the START STOP key Stop MANU Integration period 10min Recording of harmonics ON Recording of Voltage anomalies voltage Dips and Surge OFF Selected voltages V1 Sel Harmonics
75. keys F1 and F2 to position the cursor on the desired word and then use the multifunction keys F3 or F4 to modify the value Press ENTER to confirm and keep the settings made Press ESC to leave the Menu without modifying the existing parameters Use the multifunction keys F1 F2 to position the cursor on the desired voltage harmonic and use the multifunction keys F3 F4 to select deselect selected if highlighted in black Press ENTER to confirm this screen Press ESC to leave the Menu without modifying the existing settings The instrument will record the values of the selected harmonics corresponding to the voltage selected in one of the two screens of the previous Menu cae ENTER If you want to change Current Harm place cursor on the corresponding Pg symbol then Press F3 From 2 screen of RECORDER CONFIG MENU RECORDER CONFIG CURRENT HARM REC Pg ON Example of 3 screen RECORDER CONFIG CURRENT HARMONICS Example of sub screen CURRENT HARMONICS 65 MARVR2250 Use the multifunction keys F1 F2 to position the cursor on the desired word and use the multifunction keys F3 F4 to modify the value or select deselect the desired parameter it s selected if marked in black Press ENTER to confirm Press ESC to leave the Menu without modifying the existing settings Use the multifunction keys F1 F2 to position the cursor on the desired current ha
76. le Electric Company Ltd if faulty unless fuse replacement only is necessary Our service department will promptly quote to repair any faults that occur outside the warranty period Please call our service and calibration department on 01923 650620 for further details 104 15 APPENDIX 1 MESSAGES DISPLAYED MARVR2250 Message Description Advices AUTONOM Available memory for recording CLEAR ALL Enter The operator is trying to cancel all the recordings Press ESC in order not to cancel the whole memory press ENTER to confirm CLEAR LAST Enter The operator is trying to cancel the last recording Press ESC in order not to cancel the last recording press ENTER to confirm Data saved The data has been saved DATA SIZE Dimensions of the stored data HOLD The HOLD function has been activated Press HOLD again to disable this function Password A recording has been started and at least 5 minutes have Insert the password passed from the last activity of the instrument see F1 F4 F3 F2 paragraph 7 Invalid date The date entered is not correct Check the date entered Energy Measuring The instrument is taking an energy measurement Press F1 to stop Memory Full The instrument memory is full Cancel some recordings after transferring them to a PC No ext supply A recording has been started without connecting the Verify if you really want to start the recording external power su
77. lective RCD MAN x1 test 999ms 999ms MAN x2 test 200ms 250ms MAN x5 test 50ms 160ms all test 300ms During the ramp dl test RCD 05 06 01 if the RCD tripping time is higher than the limit Tripping Current the instrument emits a 2 7mA long sound signal at ms a of the test a Freq 50 0Hz Ut 1v Isplays a screen similar lvp N 231V Vp PE 230V Tripping time exceeds the fons als al 30mA 50V FUNC IdN RCD JUL Maximum current If during the ramp si test HAD Ea generated by the Lo instrument during the test A Caer ROBS he _nigner tnan l n value indicated is referre AC or 1 4 In Type A A gt 42mA to an AC type 30mA RCD or 1 4 ln e gt 300ms i i i ith gt 10mA or 2 in this case the maximum WIth bio f En FRQ 50 0Hz Ut 1y current supplied is equal to Type A with lt 10mA VP N 231V VP PE 230V 1 4xl y the instrument emits a long sound signal at _ ATTENTION the end of the test and all 30mA 50V The RCD tripping current is displays a screen similar FUNC IIAN RCD UL higher than the nominal to this value n 30mA was set in the example The previous results can be be stored pressing the SAVE key twice see paragraph 8 1 36 MARVR2250 6 4 LOOP MEASUREMENT OF LINE IMPEDANCE FAULT LOOP IMPEDANCE PROSPECTIVE SHORT CIRCUIT CURRENT CALCULATION AND PHASE SEQUENCE INDICATOR A Y lt gt Turn the switch on LOOP position L y A The F1 key selects one of the fo
78. ll be automatically selected When selecting the reactive powers for the recording the corresponding reactive energies will be selected Press ENTER to leave this screen confirming the modifications made Press ESC to leave the Menu without modifying the existing parameters The various screens of the RECORDER CONFIG can be schematised as follows 63 AE Use the multifunction keys F1 F2 to position the cursor on the desired symbol and use the multifunction keys F3 F4 to select deselect the desired parameter selected if marked in black Press ENTER to confirm and leave the Menu keeping the settings made Press ESC to leave this page without modifying the existing parameters RECORDER CONFIG START STOP MANU INT PERIOD HARM REC ON ANOM REC ON 1 screen of the RECORDER CONFIG MENU RECORDER CONFIG VOLTAGE 1 HARM REC Pg ON Vref P N 230V LIM 06 243 8V LIM 10 207 0V Example of 2 screen with ANOM flag enabled If you want to change Voltage Harm place the cursor on the corresponding Pg symbol then Press F3 RECORDER CONFIG VOLTAGE HARMONICS Example of sub screen VOLTAGE HARMONICS 64 MARVR2250 To select AUTOMATIC start stop mode place the cursor on MANU and select AUTO mode by using F3 or F4 The time and date are then displayed To revert to MANUAL mode place the cursor on AUTO and select MANU mode using F3 or F4 Use the multifunction
79. llowing measuring modes Mode P N the instrument measures the impedance between the phase and neutral conductors and calculates the phase to neutral prospective short circuit current Mode P P the instrument measures the impedance between two phase conductors and calculates the phase to phase prospective short circuit current Mode P PE the instrument measures the impedance between the phase and protective conductors and calculates the phase to earth prospective short circuit current Mode Ra the instrument measures the impedance between the phase and protective conductors with a test current of 15mA in order to avoid RCD tripping and calculates the phase to earth prospective short circuit current Mode Q the instrument detects the Phase Sequence in a three phase system WARNING Never disconnect the test leads when the message MEASURING is displayed MARVR2250 6 4 1 Measurement procedure and results of P N mode 1 Select P N mode by means of the F1 key 2 Connect the Red Green and Black connectors of the three terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1 B3 B4 Green Instrument connection for P N in a 400V three Instrument connection for P N test in a 230V phase system single phase System 3 Connect the mains plug into a 230V 50Hz socket or the croc clips to the conductors of the three phase system see previous
80. measuring instruments WARNING For your own safety as well as that of the apparatus you are recommended to follow the procedures described in this instruction manual and carefully read all the notes preceded by the symbol Strictly adhere to the following instructions before and during measurements Do not take measurements in wet environments or dusty places Do not take measurements in environments with explosive gas or fuels Do not touch the wiring under test whilst taking measurements Avoid any contact with exposed metal parts ends of test leads not in use circuits etc Do not perform any measurement if the instrument is damaged e g cracked case leaking batteries absence of display reading etc Do not use the external power supply adapter code MARVR2250PSU if you notice deformation or damage to the case wire or to the plugs Pay careful attention when measuring voltages exceeding 25V in places SUCH AS building yards swimming pools etc and 50V elsewhere because of the risk of electric shock Use only cables and accessories approved by Martindale Electric The following symbols are used in this manual Caution refer to the instructions in this manual improper use may damage the apparatus or its components AC Voltage or Current NU Unidirectional pulsating Voltage or Current A VAS lt gt i instrument La Rotary switch of the instrume 1 2 PRELIMINARY INSTRUCTIONS This in
81. n for 400V N no PE Instrument connection for 400V PE no N three phase RCD check three phase RCD check 3 Connect the mains plug or the test leads to the system under test according to one of the diagrams above 27 MARVR2250 6 3 2 1 Results of x22 mode 4 Press the START key once to execute a test with 0 Current waveform or Press the START key twice to execute a test with 180 Current waveform WARNING Never disconnect the test leads when the message MEASURING is displayed lf the RCD does NOT RCD 05 06 01 The symbol gt means that trip the instrument emits the RCD did not trip a double sound signal indicating the positive gt 999 ms Value of contact voltage U outcome of the test and detected referred to the displays a screen similar FRO 50 0Hz Ut 1V rated value of the RCD to this VP N 231V VP PE 231V current set OK RCD passed the test x1 2 30mA 50V FUNC IdN En Contact Voltage Limit value RCDtype Working mode RCD nominal current e The test can be stored by pressing the SAVE key twice see paragraph 8 1 6 3 2 2 Results of x1 x2 x5 mode 4 Press the START key once to execute a test with 0 Current waveform or Press the START key twice to execute a test with 180 Current waveform WARNING Never disconnect the test leads when the message MEASURING is displayed If the
82. nent 01 to 49 harmonics respectively THD 01 03 05 07 RMS reference value for voltage used in voltage anomalies Vref detection voltage sag and surge The reference is Only if ANOM REC a Voltage Phase to Neutral for single phase and 4 wire three red flag has been set ON phase system Se y i b Voltage Phase to Phase for 3 wire three phase system 3 ME AOP i 4 wires 230V High and Low Voltage Percent threshold used in voltage anomalies detection voltage sag and surge These parameters can be adjusted in range 3 30 step 1 LIM LIM Example Three Phase System 4 wire Only if ANOM REC Vref 230 LIM 6 LIM 10 gt flag has been set ON High Lim 243 8V Low Lim 207 0V 6 10 The instrument will detect a voltage anomaly if the RMS voltage values calculated every 10ms are beyond the above calculated thresholds 11 Current RMS value 11 THD DC 01 49 Current Total Harmonic Distortion DC Component 01 to 49 O harmonics respectively THD 01 03 05 07 68 MARVR2250 CO GENERATION ON the instrument is able to manage CO GENERATION of electrical equipment that is the equipment under test is able to generate energy besides absorbing it Accordingly the instrument will record the powers and energies both absorbed and generated If this flag is enabled the maximum number of parameters which can be selected decrease to 38 OFF the instrum
83. ng ON OFF for a few seconds e Remove batteries when the apparatus remains unused for long periods Please follow the storage instructions described at paragraph 13 4 5 MARVR2250 2 GENERAL DESCRIPTION 2 1 INTRODUCTION The instrument you have just purchased will grant you accurate and reliable measurements provided that it is used according to these instructions The instrument was designed to grant the user the highest level of safety thanks to an innovative design assuring double insulation and over voltage category Ill 2 2 FUNCTIONS The instrument is able to perform the following tests LOWQ Continuity Test of Earth Protective and Equalising conductors with test current higher than 200mA and open circuit voltage ranging from 4V to 24V 7 MQ Measurement of insulation resistance with DC test voltage 50V 100V 250V 500V or 1000V RCD Measurement on general and or selective RCD s AC type and A type of the following parameters Tripping time Tripping current Contact voltage U Overall earth resistance Ra In this mode the instrument can measure the overall earth resistance without causing RCD tripping RAS LOOP Q Y Measurement of line and fault loop impedance with calculation of prospective short circuit current Y Measurement of fault loop impedance between phase and earth and Y Global Earth resistance measurement without RCD tripping Y Calculation of prospective short
84. nings and or instructions may damage the apparatus and or its components or injure the operator Before selecting any function disconnect the test leads from the circuit under test When the instrument is connected to the circuit under test do not touch any unused test leads Avoid taking resistance measurements in the presence of external voltages even though the instrument is protected too high a voltage may cause malfunctions When measuring current other currents near the test leads may affect the measuring accuracy When measuring current always position the wire in the middle of the current clamp jaws in order to obtain the highest accuracy A measured value remains constant if the HOLD function is active Should you notice that the measured value remains unchanged disable the HOLD function WARNING The symbol WWW shows the battery status When it is completely black the batteries are fully charged while the I__ symbol indicates weak batteries When the batteries are too low to execute the test the instrument will show a warning message In this case interrupt testing and replace batteries following the procedure described under paragraph 12 2 The instrument is capable of keeping the data stored even though batteries are not installed The Instrument Date and Time settings are not lost if you change the batteries within 24 hours 1 4 AFTER USE e After use turn off the instrument by pressi
85. nt to the VOLTAGE recording Press ENTER to confirm the settings and go to the next page Press ESC to leave this screen without modifying the existing parameters From this page you can enter the sub screen Harmonics by pressing the F1 F2 keys to select HARM REC and then the F3 key You can then select the voltage harmonics to be recorded Press ENTER to confirm the settings and leave the Harmonics menu Press ESC to leave the Harmonics menu without modifying the existing parameters This screen is devoted to the settings relevant to the CURRENT recording Press ENTER to confirm the settings and go to the next screen Press ESC to leave this screen without modifying the existing parameters From this screen you can enter the sub screen Harmonics by pressing the F1 F2 keys to select HARM REC and then the F3 key You can then select the current harmonics to be recorded Press ENTER to confirm the settings and leave the Harmonics menu Press ESC to leave the Harmonics without modifying the existing parameters Menu composed of two sub screens devoted to the selection of the POWERS and ENERGIES to be recorded From this screen you can enter the sub screen POWER and ENERGY by pressing the F1 F2 keys to select POWER or ENERGY and then the F3 key You can then select the parameters to be recorded When selecting the active powers for the recording the corresponding active energies wi
86. o record or take an energy measurement This function is disabled during a recording or an energy measurement MENU to enter in the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU during a recording or an energy measurement START STOP to record selected parameters according to the instrument s settings see chapter 9 4 4 73 MARVR2250 7 5 CURRENT FUNCTION This function displays in real time the RMS value of AC DC current the peak the Thdl value the waveform and the harmonic spectrum of the current 7 5 1 Symbols The CURRENT position has three working modes Y METER v WAVE v HARM These modes will be described in detail in the next paragraphs The symbols used are described below Symbol Description 11 Current RMS value Ipk1 Peak value of the current h01 h49 Harmonic 01 harmonic 49 Thdl Total harmonic distortion factor of the current freq Network frequency Table 2 Symbols used in the CURRENT function 74 7 5 2 MARVR2250 METER mode In this mode the instrument shows a screen similar to this according to the settings made as per paragraph 7 1 27 09 00 17235312 CURRENT SINGLE PHASE I1 30 21 A Ipkl 49 53 A ThdI 23 06 freq 50 0 Hz CLAMP TYPE STD HARM WAVE PG PG Example of screen The symbols used are described in Table 2 For mess
87. of reading number of digits It refers to the following atmospheric conditions a temperature of 23 C 5 C with a relative humidity lt 60 Martindale Electric Ltd reserves the right to change specification without notice and without incurring any obligation Safety Test functions e LOW 200mA CONTINUITY TEST AUTO RT RT MODE Range Q Resolution Q Accuracy 0 01 9 99 0 01 we 10 0 999 0 1 2 Reading 2 digits After Test leads calibration Test Current gt 200mA DC per R lt 5Q Test leads included Resolution for Test current 1mA Open Circuit Voltage VO 2 4V lt 24V e MQ INSULATION TEST Test Voltage V Range MQ Resolution MQ Accuracy 9 917 3 99 on 2 Reading 2 digits if V R gt 1pA je m o 50 10 0 49 9 0 1 50 0 99 9 0 1 5 Reading 2 digits if V IR lt 1pA 0 01 9 99 0 01 100 100 999 01 2 Reading 2 digits if VIR gt 1uA 100 0 199 9 0 1 5 Reading 2 digits if V R lt 1 uA 0 01 9 99 0 01 250 10 0 199 9 0 1 2 Reading 2 digits if VIR gt 1uA 200 249 1 250 499 1 5 Reading 2 digits if VIRS1UA 0 01 9 99 0 01 500 10 0 199 9 0 1 2 Reading 2 digits if VIR gt 1uA 200 499 1 500 999 1 5 Reading 2 digits if VIRS1UA 0 01 9 99 0 01 1000 10 0 199 9 0 1 2 Reading 2 digits if VIR gt 1uA 200 999 1 1000 1999 1 5 Reading 2 digits if V R lt 1 uA Op
88. of the instrument see paragraphs 7 1 and 7 2 2 Select the working mode corresponding to the type of analysis desired In case of doubt select the POWER mode see paragraph 7 6 3 Connect to the phase and neutral wires as shown in the picture above 4 If you want to measure current and power connect the clamp meter to the phase conductor respecting the specifications shown on the clamp and the connections shown in the picture In case of doubt select the POWER mode and check if the active power P is positive If it is negative remove current transducer from the wire and reconnect it so the transducer label faces in the opposite direction 5 Apply voltage to the electrical equipment under test if previously shut off for the instrument connection 6 The values of the available electrical parameters will be displayed on the instrument For further details see the paragraph relevant to the switch position selected 7 You can press HOLD to stop updating the displayed values 8 You can press SAVE to save the displayed values see paragraph 8 2 83 MARVR2250 9 If you want to record a Check and if needed modify the values of the basic parameters see paragraphs 7 1 and 7 2 b Check and if needed modify the recording parameters by pressing MENU see the paragraph corresponding to the position of the rotary switch c To start the recording press START see chapter 6 7 8 2 Using the Instrument in a Three Phase System
89. oint at which the measurement is to be taken as such impedance would be in parallel with the line impedance to be measured 5 The key F4 permits to select one of the following limit values for the contact voltage which can be shown cyclically when pressing the key 50V default 25V 6 Press the START key once to execute a test with 0 test current or Press the START key twice to execute a test with 180 test current WARNING The Ra measurement uses a test current of 15mA This may cause the tripping of 10mA devices If necessary perform the test upstream of the device Never disconnect the test leads when the message MEASURING is displayed At the end of the test TOOP 05 06 01 Value of phase to earth the instrument emits a resistance expressed in Q double sound signal 2 indicating that the test Q ___ _ Effective value of the phase completed correctly Sa to earth prospective short and displays a screen circuit current expressed in imil fo thi Freq 50 0HZ amperes calculated similar screen to tnis VP N 231V Vp PE 231V according to the following formula Working mode FUNC f ee U Formula for calculation of prospective short circuit current Icc ae PE Where Un Nominal phase to neutral voltage 127 if Vmeas lt 150 230 if Vmeas gt 150V lt 250 eg This result can be stored by pressing the SAVE key twice see paragraph 8 1 42 MARVR2250 6 4 5
90. ording or an energy measurement to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 9 76 MARVR2250 7 5 4 WAVE mode On selecting the WAVE mode a screen similar to this will be displayed according to the settings made as per paragraph 7 1 The screen shows the waveform of the current 27 09 00 17 3512 Example of screen The symbols used are described in Table 2 For messages displayed see Error Reference source not found The following keys are enabled ESC to return to METER mode see paragraph 7 5 2 SAVE to save a record of Smp type in instrument memory see paragraph 8 2 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement 4 MENU to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU durin
91. pictures 4 If possible disconnect all low impedance loads downstream of the point at which the measurement is to be taken as such impedances would be in parallel with STAT the line impedance to be measured 5 Press the START key The instrument starts the test WARNING The measurement in a 230V system uses a test current of 6A approx This may cause the tripping of protective devices with nominal values lower than 10A If necessary perform the test upstream of the protection Never disconnect the test leads when the message MEASURING is displayed At the end of the test LOOP RES Value of phase to neutral line the instrument emits a impedance expressed in Q double sound signal indicating that the test 1 070 Value of the phase to neutral completely correctly 215A prospective short circuit and displays a screen current expressed in mitat tothi FRO 50 0HZ amperes calculated similar to this VP N 231V VP PE 231V laccording to the following formula P N Working mode FUNC Z2Q Formula for calculation of prospective short circuit current U Loe j PN Where Un Nominal phase to neutral voltage 127 if Vmeas lt 150 230 if Vmeas gt 150 lt 250 sue This result can be stored by pressing the SAVE key twice see paragraph 8 1 38 MARVR2250 6 4 2 Measurement procedure and results of P P mode 1 Select P P mode by means of the F1 key 2 Connect the Red Green and Black connectors
92. pply code MARVR2250PSU without the external power supply In that case press START again No parameter sel A recording has been started without selecting any value to Press START STOP and select at least a be recorded Value entering the MENU No Phase selected Voltage and or current harmonics have been selected and Select at least one phase voltage and or the corresponding flag has been enabled HARMONICS current ON but no phase voltage or current has been selected PASSWORD ERROR The password entered is wrong see paragraph 8 1 6 Check the password PASSWORD OK The password entered is correct Please wait The instrument is waiting for the recording to be started see paragraph 10 Recording The instrument is recording see paragraph 10 Too many param More than 63 parameters have been selected harmonics Deselect some values included or More than 38 parameters with CO GENERATION Flag enabled Too many records The quantity of recorded data Smp exceeds the Cancel some recordings after transferring maximum allowed 35 them to a PC No Unit selected ERR SEQ The Phase Sequence is not correct Check the Phase Sequence connection ERR P The active powers shown on the right of the message are If there is not a situation of co generation negative check if the clamps are properly connected ERR SEQ amp P The active powers shown on the right of the message are If there is not a situation of co generation negative and the Phase Sequen
93. resistance higher than 50 for example with disconnnected test leads LOWQ 05 06 01 A gt 99 90 AUTO 0 110 Procedure to reset test leads calibration parameters Message gt 99 9Q This means that the instrument has detected a resistance higher than 5Q therefore resetting the calibration parameters 15 6 1 2 START STOP MARVR2250 Measurement Procedure 1 Select the desired mode by means of the F1 key 2 Connect the Red and Black test leads to B1 and B4 input terminals respectively Main Earth Connector Connection of the test leads during LOW test If the cables supplied with the instrument are not long enough for the measurement you may extend the black cable Short circuit the test leads making sure that the conductive parts of the croc clips make a good contact with each other Press the START key If the display does not show 0 00Q repeat the test lead calibration see paragraph 6 1 1 Connect the instrument terminals to the ends of the conductor under test see previous picture If the mode RT or RT was selected use the F3 F4 keys to set the duration of the test 7 Press the START key The instrument will execute the measurement In RT RT Timer mode you can press START key again if you want to stop the test before the duration set has expired WARNING Never disconnect the test leads when the message MEASURING is displayed 6 1 3
94. rge in the installation 7 Press the START key The instrument will start the test Y MAN Mode The test will take 5 seconds maximum If the START key pressed longer than 5 seconds the test continues until the key is released Y TMR mode The test will take the time set If you want to stop the test press the START STOP key again 20 MARVR2250 6 2 2 Results of MAN mode At the end of the test if Insulation resistance the insulation resistance is lower than Ryax see Voltage during the test Table 2 and the el instrument generated 1 07mo Duration of the test the nominal test e voltage the instrument 514V 15s Test mode emits a double sound A ae signal indicating the MAN 500V ______ Test voltage set positive outcome of the test and displays a FUNC VNOM screen similar to this In order to evaluate the test you must compare the result with the limits indicated in the guidelines see Table 1 1 we The displayed result can be stored by pressing the SAVE key twice see paragraph 8 1 amp Ifthe Insulation Maximum resistance value resistance is higher which can be measured than Rmax see Table 2 ee 999Q is displayed if a ihe nemum t it rated voltage of 500V was E MSUUMmeEnt EmRS a gt 999 MQ selected see Table 2 double sound signal indicating the positive NX The embers mennethal outcome of the test the resistance value
95. rmonic and use the multifunction keys F3 F4 to select deselect it s selected if marked in black Press ENTER to confirm this screen Press ESC to leave this page without modifying the existing settings The instrument will record the values of the selected harmonics corresponding to the currents selected in one of the two screens of the previous Menu MARVR2250 From 3 screen of RECORDER CONFIG MENU ENTER E RECORDER CONFIG CO GENERATION ON POWER Pg ENERGY Pg Example of 4 screen In order to select the POWER to be recorded use the multifunction keys F1 F2 to position the cursor on thel orresponding Pg Symbol and then press F3 RECORDER CONFIG da DP 1 Example of POWER sub screen WARNING When selecting the active power for the recording the corresponding active energy will be automatically selected When selecting the reactive powers for the recording the corresponding reactive energies will be selected 66 MARVR2250 From 3 screen of RECORDER CONFIG MENU e ENTER RECORDER CONFIG CO GENERATION ON POWER Pg ENERGY Pg Example of 4 screen In order to select the ENERGIES to be recorded use the multifunction keys F1 F2 to position the cursor on the corresponding Pg Symbol and then press F3 RECORDER CONFIG Example of ENERGY sub screen in single phase mode WARNING e When selecting the active energy for the recording the
96. s the ENTER Key The following screen will be displayed ANALYZER CONFIG system RICH FREQUENCY 50HZ CURRENT RANGE 1000A CLAMP TYPE STD TV RATIO 0001 PASSWORD ON y T These settings can be confirmed by pressing the ENTER key or cancelled by pressing the ESC key 7 1 1 Type of electrical system under test The parameter SYSTEM is fixed to SINGLE value as the VERITEST 2250 is only able to analyse a Single Phase system 7 1 2 How to set the fundamental frequency Position the cursor on the corresponding word by pressing the F1 F2 keys and select the network frequency between the possible values 50Hz and 60Hz by pressing the multifunction keys F3 and F4 This parameter is important ONLY if the input voltage is too low for the instrument to detect the frequency for example only the clamps for the current measurement are connected In this case the instrument generates an internal synchronism equal to the value of the set frequency 7 1 3 How to set the current range The value of this parameter must always be equal to the full scale of the current clamp used to take the measurement If a multi scale clamp is used the value of this parameter must be equal to the scale selected on the clamp Set the desired value by pressing the multifunction keys F3 and F4 7 1 4 Clamp Type The value of this parameter shows that standard clamps STD and flexible clamps flexINT and flexEXT may be used with
97. s used are described in Table 3 For messages displayed see appendix 1 MESSAGES DISPLAYED The following keys are enabled e ESC to return to METER mode see paragraph 7 6 2 SAVE to save in the instrument memory a record of Smp type see paragraph 8 2 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement q MENU to enter in the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU during a recording or an energy measurement 4 START STOP to record selected parameters according to the instrument s settings see chapter 9 80 MARVR2250 7 7 ENERGY FUNCTION This function displays the values of the active powers capacitive and inductive reactive powers power factor and cose Furthermore the instrument is able to measure directly the values of the energies and the values of the capacitive and inductive reactive energies see 7 7 2 7 7 1 Symbols The position ENERGY has only one working mode
98. sic Setting ANALYZER CONF G a e a ea a ra aan aa a KE A EE AS Ea R E A A 61 fads Type of electrical system under tost cessioni cis Waris Ad 61 7 4 2 How to set the fundamental frequency miii ada 61 14 3 Howtoset the current ranges avon andes A alia esis a i Aida 61 EAA Clamp TPG ida A A A asain shinies teenie A E Heine 61 7 1 5 How to set the value of the transformer voltage ratio TV RATIO 00 eceesessesesseeeeesseeseeesseeseeesseeseeesseeseeesseeseeessneneeesens 61 71 6 How to enable disable the passwords ocioso ia armatatiia 62 7 2 Basic Setting RECORDER CONFIG 0 c cesesesssscsesesesseesescsesesesesesusseacscseseecenesescacacacansesnsasacaeansnsnsesasacaceceseeesees 63 13 ANALYZER FUNGTIONS inis aa Madar hatin bate aii Ma bates Saale ab an Eta 70 LAs NOETAGE FUNCION estes tise iain A data ae 70 Atle OVMDOIS RA 70 TA 2i METER EMOS tr a wanted amination dt mea Aa tatan tank aca catataas tents Arndt 71 TAS CHARM MOUG a 72 LAA WAVE MOB ii A Beda ania ai AA anan ai 73 5 GURRENTFUNclON ii a AA arden eae 74 ES A A EE EA E 74 F924 METER Mode a ana IA AI 75 153 TAR MM aia id ii a statu IA E aE EAEE At 76 TOA WAVES M008 sio O A E EA A E E A EIN 77 10 POWER FUNCHON it A AE E a cia othe ol Tess 78 FA a S MD A alae A en AO ada 78 10 2 METER A ARO 79 03 WAVE M000 ii a A REO Anda 80 Lit ENERGY FUNCUON ic AAA AAA A A AAA Sadles 81 Lala MD id o EE alla 81 B02 METER MO sita A EA a DANA AAA 82 7 84 M
99. strument has been designed for use in environments with a pollution level 2 and up to and no more than 2000 meters altitude t can be used for Safety Test on Installation with Over voltage Category Ill 300V phase to earth and for voltage and current measurements on installations with over voltage category IIl 600 V phase to phase 300 V phase to earth or CATII 350 V phase to earth MARVR2250 Please keep to the usual safety standards aimed at Protecting against dangerous currents Protecting the instrument against improper use Only the accessories supplied with the instrument guarantee compliance with the safety standards Accordingly they must be in good condition and if necessary they must be replaced with identical models Do not take measurements on circuits exceeding the specified current and voltage limits Before connecting cables croc clips and clamps to the circuit under test make sure that the correct function has been selected Do not take any measurements under environmental conditions beyond the limits specified in paragraph 13 4 Check that batteries are not weak and have been inserted correctly Before connecting test leads to the circuit under test check that rotary switch position is correct Check that the LCD and the rotary switch indicate the same function 1 3 DURING USE Please read carefully the following recommendations and instructions WARNING Non compliance with the war
100. the SAVE button to store the displayed result The REMINDER PLACE parameter is not related to the measurement order SAVE IN LOC 006 Memory Location number and can help to remind the user the OK SAVE ESC place where the measurement was REMINDER PLACE 009 Reminder place performed C AA The following keys are available F3 F4 to change the REMINDER PLACE number SAVE to store the test result associated with the REMINDER PLACE ESC to quit this mode without saving 8 2 SAVING DISPLAYED VALUES OF ANALYZER FUNCTION During a real time measurement in ANALYZER function if the user presses the SAVE button a Smp record will be generated in the ANALYZER MEMORY This file contains the Voltage and Current values present at the instrument input when the SAVE key was pressed Downloading these values to a PC using the management software the Power Energy and Harmonics values can be calculated and displayed as well 85 MARVR2250 9 RECORDINGS 9 1 START A RECORDING The recording function is available for the ANALYZER and AUX rotary switch positions As detailed in the paragraphs 6 7 1 and 7 2 a recording can be started manually or automatically Therefore after setting all the parameters and leaving the Menu the instrument will start to record Y MANUALLY the recording will start when the instrument s time reaches the 00 seconds value after pressing STAR
101. tically we may schematise the correct procedure for the ANALYZER function as follows ia aad ee If you want to record a Decide what to record Check and if required modify the ANALYZER CONFIG settings of the instrument Using F3 and F4 select the type of measurement to be taken Connect the instrument to the electrical system to be tested Evaluate the values of the parameters under test b Press MENU and check if the RECORDER CONFIG settings meet your requirements c Consider Typical Configuration recording see paragraph 9 2 6 Connect the External Power Supply MARVR2250PSU optional 7 Start the recording by pressing START STOP 7 4 VOLTAGE FUNCTION Y This function permits you to display in real time the RMS value of AC DC voltage the peak the Thd value the waveform and the harmonic spectrum of the voltage 7 4 1 Symbols The VOLTAGE position has three working modes Y METER v WAVE v HARM These modes will be described in detail in the next paragraphs The symbols used are described below Symbol Description V1 Voltage RMS value Vpk1 Peak value of the voltage h01 h49 Harmonic 01 Harmonic 49 ThdV Factor of total harmonic distortion of the voltage freq Network frequency Table 1 Symbols used in the VOLTAGE function 70 MARVR2250 7 4 2 METER mode In this mode the instrument shows a screen similar to this according to the settings made as per
102. time in seconds General Selective B Minimum tripping time in seconds For rated values IAN gt 30mA the test current at five times is 0 254 For currents equal to n the RCD shall not trip in any case Table 3 Table of tripping times for tests with leakage currents lin x1 ln X2 l n x5 and AUTO Note The above values apply to RCD s manufactured to comply with BSEN61008 RCD s which are manufactured to comply with BS4293 are required to operate in 0 2s at IAN x 1 It is important that the user of this instrument is aware of the applicable tripping time s for the RCD being tested Table of tripping times for ramp tests ual The instrument generates a leakage current growing step by step in a given time interval The limit values for the tripping current are indicated in the following table Table 4 Current limit value for Ramp Test Note MAN 5 x IAN and AUTO test modes are not available for RCD type A at 500mA and are not required 26 MARVR2250 6 3 2 Measurement procedure 1 Select the desired test parameter with the F1 F2 F3 and F4 keys 2 Connect the Red Green and Black connectors of the three terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1 B3 B4 Instrument connection for 400V N PE Instrument connection for 230V single phase three phase RCD check RCD check Instrument connectio
103. to earth connection in the plug or exchange the red cable with the green one This screen is displayed when in a 230V Phase to Phase System the black conductor was reversed with respect to the green one The instrument does not perform the test Reverse the black and green conductors RCD 05 06 01 FRO 50 0Hz Ut V VP N 231V VP PE OV x1 30mA 50V MARVR2250 Phase and Neutral Conductors are reversed FUNC IAN RCD UL 05 06 01 FRO 50 0Hz VP N ms Ut V 2V VP PE 230V Phase and Protection Conductors are reversed x1 30mA 50V FUNC IdN RCD UL RCD 05 06 01 FRO 50 0Hz Ut V x1 30mA VP N 130V VP P Neutral and Protection Conductors are reversed E 227V 50V FUNC IdN UL If a contact voltage U higher than the selected limit UL is detected the instrument interrupts the test and emits a long sound signal at the end of the test and displays a screen similar to this If the instrument detects that the earth cable green is not connected the screen alongside is displayed for 5 seconds Check the connections of the PE conductor under test If the instrument gets overheated tests cannot be carried out and the message alongside is displayed Wait until the screen reverts to the initial display before proceeding RCD 05 06 01 FRQ 50 0Hz Ut V VP N 23
104. trument memory see paragraph 8 2 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter the MENU mode and change the instrument settings see paragraph 7 1 and 7 2 It is not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 9 82 MARVR2250 7 8 MEASURING PROCEDURES 7 8 1 Using the Instrument in a Single Phase System WARNING The maximum voltage between B1 and B4 inputs is 600 V CATII 350V YN phase earth or 600V CATIII 300 V phase to earth Do not measure voltages exceeding the limits prescribed by this manual Should you exceed the voltage limits you could damage the instrument and or its components and endanger your safety gt Phase _ a sl NS Instrument connection in a single phase system WARNING If possible switch off the supply before connecting the instrument to the electrical equipment to be tested 1 Check and if needed modify the basic settings
105. ucaceeeceessnsusaceeeeansnsaseseceusansnsaseteseesanees 40 6 4 4 Measurement procedure and results of Re MOJE iia ad 42 6 4 5 Measurement procedure and results of OQ MODE iria id 43 6 4 6 LOOP Faulty Cases astern ea rteucemtandtscan sateen tan caribaea cin teaudaiadladeieeutanioe 44 6 5 EARTH Soil Resistance and Resistivity Measurement s sssssesssescssessscesseceseesessessseessestensncenseeenseesnaees 49 6 5 1 Measurement procedure and results of 2 W and 3 W Mode cceccesecsesesessesesecseeceeesesesaceeeesatsnsaseseceasansnsaseneeeetenees 50 6 5 2 Measurement procedure and results of p MO eee eee neces tees ees ee eeeneennetenneneneeteanee creara 51 6 5 3 2W 3 W and p faulty CSCS ee ene iene irene ne eine tennessee nese inaneeinentenneaneaneeneamraneeineneeaneae 52 6 6 LEAKAGE CURRENT REAL TIME MEASUREMENT cccccccccscscsssssssssscscscscsssessscssscsssssssssssssssacssscsseseseseserees 55 6 7 LEAKAGE CURRENT RECORDING ccccccccccscscssscsssesssssssssssssavsvscscscsssesssssesesesesesesesecesesssassasanasananasesesesasasess 57 6 7 1 AUX Basic setting RECORDER CONFIG cccceccecsessesseeseesseeeesseesesseesesseesnesnseaesuseensaseanseteaneensaneeessnsensenseetsnsensnseeneases 57 6 7 2 RECORDING setting of Typical Configurations ccccccesecseseseseecescsesceeesesesseeeeaceeeceessnsuseceeesansnsasaseceasansneaceeeseesenees 59 Ta ANALYZER oi is 60 MARVR2250 7 1 Ba
106. urce not found The displayed histograms represent the harmonic content of the current under test The value of the first harmonic h01 primary at 50Hz is not represented in scale along with the other harmonics in order to maximise the display In case both voltage and current are connected to the instrument inputs negative values represented under the horizontal axis indicate that such current harmonics are generated by the load The following keys are enabled F3 F4 F2 ESC SAVE ENTER HOLD MENU START STOP to move the cursor left and right to select a harmonic At the same time the values relevant to the order number of the selected harmonic and to the corresponding absolute and relative values calculated on the basis of the fundamental are updated to display the page of the harmonics h01 h24 h24 symbol or that of the harmonics h25 h49 h49 symbol to return to METER mode see paragraph 7 5 2 to store a record of Smp type in instrument memory see paragraph 8 2 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function of the displayed data All the previous functions remain available When the HOLD function is enabled the word is displayed When this function is enabled it is not possible to record or take an energy measurement This function is disabled during a rec
107. ven though batteries are not installed The instrument Date and Time settings are not lost if you change the batteries within 24 hours MARVR2250 WARNING For recordings ANALYSIS and AUX function it is recommended to ALWAYS use the external power supply adapter code MARVR2250PSU although the instrument does allow the operator to perform a recording using internal batteries If during a recording the external power supply adapter is de energised the instrument will continue the recording using the internal battery power until the batteries are exhausted the data stored up to the point the instrument shuts down will be saved It is recommended to ALWAYS insert a new set of batteries before a long recording The instrument uses sophisticated algorithms to prolong the battery life Particularly v The instrument switches OFF the backlight automatically after 5 seconds v If the instrument is displaying in real time and the external power supply adapter is not connected after about 5 minutes from the last key press or switch rotation the instrument turns off automatically AUTOPOWER OFF feature v If the instrument is recording or is measuring energy and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument starts a special procedure to save the batteries ECONOMY MODE the instrument keeps recording but the display is turned off 3 3 CALIBRATION
108. will return to meter mode and the instrument will continue recording In order to enable disable this option the correct password will have to be entered The display will then return to meter mode and START STOP will have to be pressed again to stop the recording You will then need to re enter the ANALYZER CONFIG menu and scroll up or down to the item PASSWORD ON using the multifunction keys F1 and F2 Then turn the password off by pressing the multifunction keys F3 and F4 62 MARVR2250 7 2 BASIC SETTING RECORDER CONFIG Place the rotary switch in the ANALYSER position press the MENU key use the F1 F2 keys select the RECORDER CONFIG and press the ENTER Key This option allows you to check and modify the recording parameters and the selected parameters up to a maximum of 62 Frequency If the number of selected values exceeds 63 the message MEN EEM will be displayed The RECORDER CONFIG mode is divided into 4 separate sub screens v 1 screen Y 2 screen Y 3 screen Y 4 screen This screen allows you to set the START STOP mode AUTO or MANUAL the START and STOP time if AUTO mode is selected the Integration Period value the Enabling Disabling of Voltage Anomalies detection the Enabling Disabling of Harmonics detection Press ENTER to confirm the settings and go to the next screen Press ESC to leave the menu without modifying the existing parameters This screen is devoted to the settings releva

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the Veritest 2250 manual - Gas & Environmental Services Ltd