User Manual
Contents
1. MPB LIST OF FIGURES 6 7 Formula 2 a a N an 34 38 User Manual CCM2. User Manual Data Sheet Calibration Certificate 2 User Manual CCM MPB 1 GENERAL INFORMATION 1 4 Optional Kit CCM Kit of Calibration including e CCM JIG e Resistances R45 e RG316 cable 1 mt length N M sma M User Manual CCM 3 MPB 1 GENERAL INFORMATION 1 5 Front In Figure 1 2 is shown the CCM front panel On Off switch Micro USB connector NL pu e Keyboard Figure 1 2 CCM front 4 User Manual CCM MPB 1 GENERAL INFORMATION 1 6 Rear In Figure 1 3 is shown the CCM rear panel Measure Tip Measure trigger Ground connector Figure 1 3 CCM rear User Manual CCM 5 MPB 1 GENERAL INFORMATION 1 7 Technical Specifications Frequency Range Low band Medium band High band Frequency Response Low band Q 1 mA Medium band 100 High band 20 mA Measurement range Low Band Level range Damage level Resolution Dynamic range 500Hz Linearity error 500Hz 0 3 3 mA Medium band Level range Damage level Resolution Dynamic range 25kHz Linearity error 25kHz 10 200 High band Level range Damage level Resolution Dynamic range 10MHz Linearity error 10Mz 12 120 mA Measurement modes Alarm sound Display Detectors Contact tip USB Interface Standards Operating Temperature Power supply Battery Operation Time Dimension Weight Recommended calibration interval Input
3. 1 Introduction 6 amp 2 5 8 4 5 u dh ua DIeScHD ION as mae ed u 5 3 Composition seo perra 5 4 Kit Case wes beeeechiewestan 6 JIG Functioning 6 1 Equipment 22 2 Er rn nn 6 2 Install the CCM on the JIG 6 3 Ground Plane Test 6 4 Hand Test 6 5 Certificate Measurements BL Low band zz coso caos 2 6 5 2 Medium Band Goao Heh DO ss nas Figures List VI User Manual CCM CONTENTS Chapter 1 General Information Figure 1 1 CCM MPB 1 GENERAL INFORMATION 1 1 Introduction CCM was designed to measure the contact current that may be generated when touching electrical electronic equipment inside a radio frequency field in a fast and accurate way 1 2 Description CCM Figure 1 1 is a portable measuring device with more than one measure ment mode Depending on the needs it can measure by means of the GROUND PLANE and the related resistance for closing the circuit on the ground or it can work without a cable making use of the impedance level of the user through the conductive area on the handle In the next chapters we will go more deeply into this subject 1 3 Composition The base configuration of this device includes e Rigid Case e CCM e 1 5 V Batteries 2 pcs e sma sma Cable M M 2 mt e Body Simulation Impedance Z 2251 e USB Cable for PC Connection e Ground Plane plate e USB Key with
4. CCM Contact Current Meter complies with the following European Standards Safety CEI EN 61010 1 2001 EMC EN 61326 1 2007 This product complies with the requirements of the Low Voltage Directive 2006 95 CE and with the EMC Directive 2004 108 CE User Manual CCM III MPB IV User Manual CCM Contents 1 General Information LI a IIA L2 IESO sesse ow Ae AAA Lo 3 11101031 1 10 1 cp eee cp a ee eee ee ae eee Ss oe ow S LA CUO has een ee ee eee eee ee eee oe ee ee we Te Pe wae eee eh whee ee wee Ee lb HOOP vas 2204 04 iodo shore eaanes da i 1 7 Technical Specifications a a 2 Principle of operation 2 1 Logic Schema 2 2 Measurements 2 3 Contact Current ao in seb bee a be 2 PUNY Aw heehee a ee ee 3 CCM Usage Ob WOON ca cee ecan ee eee beeee ee ees eeaeee es ee 32 DANO DeO es ase ew kee ee a ae ae 3 3 Hand or GE o quemas ne tee be Bea dw Be ew 2 Oe Panevan llos ee eee ee Gees dar Pee ea ke eee hoe eee orar aa 3 6 CCM Menu asco Hew hee eee Se ROD SE ee Sw 3 6 1 Regulation limits a he hea ee eG 3 6 2 Beep on 3 6 3 Alarm ed RAR EEE ES SL AGO DUO cae kee sre kpe Er Eee ah EH ea 365 Date amp Time 0 0 ia un aa a an aa 3 6 6 Contrast or 62444 rd 367 ore ae Das 2 0m 000 RR Re a ed 4 Data Download 4 1 Connect to PC 4 2 Data Format OQ OUA 0 N NN e O o o N N 11 12 13 14 15 16 16 16 17 18 18 19 20 MPB 5 JIG General Information 5
5. an outcome with accuracy of around 100 corresponding to a 40 mA Within this range we suggest to set the Bandwidth visualization mode in order to read the result in milliAmpere as well and not only in percentage compared to the limit User Manual CCM 35 MPB 6 JIG FUNCTIONING 36 User Manual CCM List of Figures 1 1 1 2 1 3 2 1 3 1 3 2 3 3 3 4 3 0 3 0 al 3 8 3 9 3 10 3 11 ab 3 13 4 1 4 2 4 3 9 1 5 2 9 9 6 1 6 2 6 3 6 4 6 9 6 6 2 A 1 COM 3 4 heeanceeeaaaeheauceueganweaucas 4 GOM Wee o ewe eee eee ss ase ee ee ee 5 CON Dock Dagiai o es eer ee ee ee eS 7 Turned On CCM 2 2 m nn 11 COM Menu x eee be zus ss wen an zus kenn 12 De ee E ee TEE E 13 Hnd or GP e ss caa er ee ee 14 Pe E ee 15 AAA IOF MEMI cra or ee ee ee 16 Mil ios ios ono ono AA 17 Beep on press a EER REE RRR A A 17 PEL en e e ee a 18 er ee ee re 19 Dated ae A ed dd 19 6 we ea howe ek ee eee ee ee 20 Cal a ans dar AA AAA 20 MEAR roer 21 Access Data on nn 22 Bora ee eee eee ee ee ee ie ee ee 23 COMME anar hn eee he ee hk eed FE 25 COG bee ree eee ee ee eee eee eee ae 27 Case Compartment sosoo e a e a 28 Cable and resistance 2 2 2 om a a a 29 Remove the TIP _ 00 000 00 00 0048 30 Set Up the JIG 6 as Hew ns a Ee we ee ew 30 POON POS ao ae eee eee seateeeeaees ee eee ee 3 31 Ground Fine PIE lt lt eee hee Hee eee ee ee 32 MUI oe ee ot AAA HO 39
6. make the measurement while displaying TOTAL and then check in BANDWIDTH at what frequency the limit has been exceeded 3 5 First Use If the CCM has just been switched on or if it s been more than one minute since the last measurement it is in STANDBY mode By pressing the trigger the device selects the relay and it actives the WAIT mode which indicates that the device is loading In the end the message READY is displayed Before pressing the trigger again the operator will have to wait for the appearance of the READY message on the screen Figure 3 6 From this moment on the device is ready to perform the test in real time Before carrying out the measurement please follow the instructions below e Press the trigger to switch the instrument mode from STANDBY to READY Only when the READY key appears please do not press the trigger again reach the equipment under test with the tip and only after making con tact press the trigger to start the measurement You can make single or User Manual CCM 15 4 y MPB 3 CCM USAGE Figure 3 6 Ready for measuring consequential measurements e With each new measurement the operator will be warned by an acoustic signal if enabled and simultaneously by a brighter display illumination All measures are automatically stored by the CCM e In both modes the measuring tip of the CCM must never be removed from the equipment under test 3 6 CCM Menu The next part
7. of the manual sequentially shows the possible configurations of the device 3 6 1 Regulation limits From the standby screen by pressing the MENU key you will reach the screen shown in Figure 3 7 This screen is intended as a reminder for the user since it displays the limit values for which the CCM is designed 3 6 2 Beep on press The second page of the menu allows you to enable or disable the beep every time you press the corresponding key To change this setting enter the page by pressing the key SET as in Figure 3 8 16 User Manual CCM t MPB on Bul T sr Figure 3 7 Limit NEXT PREU SET ao ur gt 24 f E NEXT PREU SET Figure 3 8 Beep on press 3 6 3 Alarm Scrolling back the menu always using the NEXT key the third page displayed is the alarm page This happens when the SET key is pressed as shown in Figure 3 9 By default the alarm is disabled while when pressing the UP key User Manual CCM 17 4t MPB 3 CCM USAGE the value is incremented by 5 until it reaches the maximum warning threshold of 300 Figure 3 9 Alarm Please do not forget that the percentage value is parametric with respect to the frequency of the input signal see the graph shown on the first page of the menu Chapter 3 6 1 3 6 4 Auto OFF Through this setting the user can decide how long after inaction it will take before the device will automatically shutdown This is the fourth page of t
8. signal attenuation over 110 MHz 6 User Manual CCM 2 5 kHz to 100 kHz 40 Hz to 2 5 kHz 100 kHz to 110 MHz lt 1 5 dB lt 1 5 dB lt 1 5 dB 100 mA 1nA 50 dB lt 1 dB 0 to 300 ICNIRP limit 1 to 40 mA 500 1I nA 50 dB lt 1 dB 0 4 to 120 mA ICNIRP limit 40 mA 300 mA 10 nA 50 dB lt 1dB 0 01 to 3 mA ICNIRP limit 1 mA Hand and Ground Programmable level Graphic LCD with led backlight true RMS Interchangeable Micro USB connector Directive 2004 40 EC 10 C to 40 C 2pcs AA Alkaline 24 hours 205 x 90 x 45 mm 200 g 24 months 200 MHz gt 7 dB 300 MHz gt 18 dB 400 MHz gt 31 dB 500 MHz 3 GHz gt gt 45 dB Chapter 2 Principle of operation 2 1 Logic Schema The schema shown in Figure 2 1 describes the CCM work flow Low true Band RMS Filter detector Medium true Band RMS Filter detector MEM High true Band RMS _ Filter detector Figure 2 1 CCM Block Diagram MPB 2 PRINCIPLE OF OPERATION 2 2 Measurements The CCM digital nature allows it to measure contact currents through the true RMS Root Mean Square value for all analog signals from 40Hz The RMS value of a waveform signal is equal to a DC current which provides the same power to the load The signal measured by the TIP passes through the most suitable filter Low Medium and High then arrives to the true RMS detect
9. 0 049 0 010 0 044 0 009 0 050 0 010 Figure 4 3 Data dump HF mA 0 07 0 07 0 07 0 07 0 07 0 07 0 07 0 07 0 07 Input from hand hand hand hand hand hand hand hand hand User Manual CCM 23 MPB A DATA DOWNLOAD 24 User Manual CCM Chapter 5 JIG General Information Figure 5 1 CCM and JIG 5 1 Introduction The JIG was designed to standardize the CCM calibration procedure and give the final user the possibility to perform calibration whenever he needs to 29 4 MPB 5 JIG GENERAL INFORMATION 5 2 Description The JIG is built on an iron base with a connector to be plugged to the CCM s Jig room an iron locking stirrup designed for the HAND plate and adaptive connectors designed for the contact current meter This guarantees a stable support during the test procedure During the procedure the user will have to subject the device to RF signals using the special connectors on the JIG or on the CCM itself 5 3 Composition The CCM with the JIG option comes with e shaped hard case e batteries e Resistances R45 e Body Simulation Impedance Z 2251 e RG316 cable N sma M M length 1 mt e Cable sma sma M M length 2 mt e Ground Plane 26 User Manual CCM MPB 5 JIG GENERAL INFORMATION 5 4 Kit Case In Figure 5 2 is shown the complete Kit for the CCM GP Compartment CCM JIG lock JIG Resistances R45 Battery Figure 5 2 Case User
10. B CCM E pl Organize Share with Burn New folder gz 1 al Name ME Computer amp Local Disk C gt MPB CCM Ex gt HP_TOOLS F 4 5 DATLCSV Figure 4 2 Access Data 4 2 Data Format Measurement by measurement the device appends into the only data csv file generated all the information about a measurement More specifically the stored data are ordered as follows e Date amp Time Total value Measurement expressed in For workers Total value Measurement expressed in For general public Value in mA from the Low Filter Value in mA from the High Filter Measurement made through HAND or GP To correctly display the date and time the format to enter is dd mm yyyy hh mm ss 22 User Manual CCM MPB A DATA DOWNLOAD To correctly display the acquired values the decimal separator is the point and the digit grouping symbol is a comma In case of visualization issues please change the Language and re gion setting in the control panel This file opened with MS Excel will appear as in Figure 4 3 MPB CCM FW 1 03 date time GG MM AAAA hh mm ss 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 05 11 2015 12 55 Workers G Public LF De 1 0 3 3 1 0 4 9 1 0 4 4 0 9 3 0 1 0 0 5 1 6 0 5 2 4 0 5 2 2 0 4 2 5 0 5 mA 0 010 0 033 0 010
11. Figure 6 3 Set Up the JIG 30 User Manual CCM t MPB 6 JIG FUNCTIONING The next step is to lock down the CCM with the special JIG lock using the knobs so that the HAND plate will be connected to the lock sma connector the result is shown in Figure 6 4 tighten Figure 6 4 Set Up the JIG It s important to tighten the knobs on the basis just to ensure a good con ductivity between the metal JIG and its lock plate User Manual CCM 31 MPB 6 JIG FUNCTIONING 6 3 Ground Plane Test As already described on the CCM manual the GROUND PLANE measure has to be done before the HAND measure To properly connect the device plane connector to the generator we will use our N sma cable and the R45 resistance as in Figure 6 5 Figure 6 5 Ground Plane Plug We can now turn on the device and set up the Ground Plane mode Once the signal generator is configured and operating you can pull the trigger and perform the measurement 1 plug the R45 adapter to the SMA connector in the GP input 2 plug the SMA N cable to the adapter and to the signal generator 3 set the generator on the appropriate level 4 turn on the device under test 5 switch to the GP modality see Chapter 3 3 6 press the GET button to perform the measurement For instructions on how to set the generator please see the examples in 6 5 1 6 5 2 and 6 5 3 32 User Manual CCM t M
12. MPB S r l Tel 39 0641200744 M P B Via Giacomo Peroni 400 402 Fax 39 0641200653 00131 ROMA RM info gruppompb com www gruppompb com User Manual CCM Contact Current Meter Updated to Firmware Version CCM V1 03 Manual Version V1 08 MPB SAFETY NOTES Read carefully before using the product MPB works to provide its customers with the best safety conditions avallable complying with the current safety standards The instrumentation described in this manual has been produced and tested in conditions that fully comply with the European standards To maintain it in safe conditions ensure the correct use of the product and prevent any danger these general instructions must be fully understood and applied before any use This product is intended for industrial environments and laboratories and should be used by authorized personnel only MPB disclaims any responsibility for a different use of the device Please use the device only after checking the presence and valid ity of the safety devices e g breakers differential switches and the conformity of the grounding For safety reasons the HAND measurement mode has to be done only after the GROUND PLANE mode The latter shall not exceed the limits defined by the 2013 35 EU regulation II User Manual CCM MPB Declaration of Conformity in accordance with the Directives EMC 89 336 EEC and Low Voltage 73 23 EEC This is to certify that the product
13. Manual CCM 27 MPB 5 JIG GENERAL INFORMATION In Figure 5 3 is shown the inner compartment of the case Ground Plane Thickness Figure 5 3 Case Compartment 28 User Manual CCM Chapter 6 JIG Functioning 6 1 Equipment To use the JIG is necessary to have a signal generator able to generate sinusoidal signals from 40 Hz to 110 MHz All the other tools needed for the calibration are supplied with the JIG kit For the specific connection with the signal generator a N sma cable as in Figure 6 1 and a R45 resistance will be used CL Figure 6 1 Cable and resistance The CCM has an inner resistance of 5 Ohm and since almost all the signal generators are adapted for 50 Ohm 45 Ohm must be added to the load assem bling the resistance included on the sma attack of the cable The connector must be plugged to the generator In the next paragraphs we will see different ways of plugging the CCM through this configuration 29 MPB 6 JIG FUNCTIONING 6 2 Install the CCM on the JIG To install the CCM on the JIG in order to be able to make a calibration first of all we need to remove the TIP from the CCM simply by sliding it out as shown in Figure 6 2 a CCM TIP c CCM TIP unplugged Figure 6 2 Remove the TIP Now the device is ready to be installed on the JIG Set the JIG base near your signal generator and plug the CCM on the JIG through the TIP connector as in Figure 6 3
14. PB 6 JIG FUNCTIONING 6 4 Hand Test For the HAND measurement you have to plug the R45 resistance to the sma connector on the JIG lock then the N sma cable from the impedance to the generator as shown in Figure 6 6 Figure 6 6 Hand Plug With the device turned on switch the reading mode to HAND Now you can start to generate the desired signal When ready please pull the trigger to perform the measure 1 plug the R45 adapter to the SMA connector in the JIG input 2 plug the SMA N cable to the adapter and to the signal generator 3 set the generator on the appropriate level 4 turn on the device under test 5 switch to the HAND modality see Chapter 3 3 6 press the GET button to perform the measurement For instructions on how to set the generator please see the examples in 6 5 1 6 5 2 and 6 5 3 User Manual CCM 33 4 MPB 6 JIG FUNCTIONING 6 5 Certificate Measurements To test the correct functioning of the CCM make sure your generator is working properly and the grounding is in compliance with the law Please remember that as every other device the CCM is subject to a minimum eventual error To know the ideal outcome of the device please appy the folllowing formula 50ta X linia Poentagm 10 X logo 1 X 103 iw Figure 6 7 Formula 6 5 1 Low Band In this band from 40 Hz to 2 5 kHz the limit for workers is 1 mA so the 100 is equa
15. anual CCM Chapter 4 Data Download 4 1 Connect to PC The data downloading operation has been designed to improve the speed and simplicity of use The data generated by the CCM are stored in csv comma separated value which is a text file with value separators This allows the user to read edit and process the downloaded data via various software including MS Excel When connecting your device it must be already turned on At the first connection through the USB Micro USB cable supplied with the instrument the CCM will be recognized by the PC as a mass storage device Figure 6 7 For this reason there is no need for special drivers because drivers self installed by Windows OS will be ready to use Installing device driver software Click here for status 10 54 25 03 2015 Trio EF do Lf Your device is ready to use Device driver software installed successfully 0 10 55 25 03 2015 Figure 4 1 Installing If your PC has enabled the autoPlay the next window appearing will be the one to access to the new peripheral Figure 4 2 otherwise it can be accessed by opening My Computer and selecting the MPB CCM marked device 21 MPB 4 DATA DOWNLOAD MPB CCM E General options LN E j Fl Open folder to view files E using Windows Explorer l Y Use this drive for backup using Windows Backup Wew more AutoPlay options in Control Panel 2 gt Com MPB CC 44 Search MP
16. he menu and in Figure 3 10 you can see how also on this page the left and center key change usage Ranges for this setting vary from 10 minutes to 60 minutes with a 10 minutes span You cannot disable this option for battery saving 3 6 5 Date amp Time The fifth menu item allows you to change the date and time of the device Fig ure 3 11 It is important that this information is correct because the results of the measurements in the downloaded data csv file generated by the device are associated with the day and time of the measurements The changes of the fields are carried out using the keys UP and DOWN and will follow the sequential order of day month year hours minutes and seconds 18 User Manual CCM Pp MPB 3 CCM USAGE Figure 3 10 Auto Off Ir CASTE NEXT PREN DOW NEXT Figure 3 11 Date amp Time 3 6 6 Contrast The sixth page of the menu Figure 3 12 allows you to change the contrast of the LCD display by using the same keys UP and DOWN By default an intermediate value is already set User Manual CCM 19 MPB 3 CCM USAGE Figure 3 12 Contrast 3 6 7 Clear Data In this menu the operator has the possibility to delete all the data stored in the internal memory If measurements from the previous session have remained it is possible to clean the memory without a PC The Figure 3 13 shows how this functionality works Figure 3 13 Clear Data 20 User M
17. l to 1 mA To test the correct functioning of the CCM at low frequencies please set the frequency of the generator at 1 kHz and the power at 13 01 dBm You will obtain an outcome with accuracy of around 100 corresponding to 1 mA Within this range we suggest to set the Bandwidth visualization mode in order to read the result in milliAmpere as well and not only in percentage compared to the limit 6 5 2 Medium Band In this band from 2 5 kHz to 100 kHz the limit for workers depends on the frequency with the following rule mA 0 4 f where f is expressed in kHz Within this frequency range the limit varies in function of the frequency of the emitted signal We will provide three sample frequencies e setting the frequency at 10 kHz and the power at 0 97 dBm you will obtain an outcome with accuracy of around 100 corresponding to 4 mA e setting the frequency at 20 kHz and the power at 5 05 dBm you will obtain an outcome with accuracy of around 100 corresponding to a 8 mA e setting the frequency at 50 kHz and the power at 13 01 dBm you will obtain an outcome with accuracy of around 100 corresponding to a 20 mA 34 User Manual CCM t MPB 6 JIG FUNCTIONING 6 5 3 High Band In this band from 100 kHz to 110 MHz the limit for workers is 40 mA so the 100 is equal to 40 mA Within the high frequencies range setting the frequency at 10 MHz and the power at 19 03 dBm you will obtain
18. mum if there is a contact with the object or with the system which is generating the electromagnetic field A device with metallic shell if immersed in an electromagnetic field can become a RF voltage carrier and can accumulate electrical charges If you come into contact with the device without adequate protection you can risk that the RF voltage discharges to ground flowing through the limbs and the body In this case the electrical charges on the device immersed in the electric field through the operator s body have generated a contact current An electrical equipment not properly shielded can emit electromagnetic waves When coming into contact with that machinery without adequate protection even in this case there is a risk that the electromagnetic waves flowing through the limbs and the operator s body can generate a contact current 8 User Manual CCM MPB 2 PRINCIPLE OF OPERATION 2 4 Safety The GP measurement mode has only been developed for safety reasons since it does not guarantee reliable measurements Also for the operator s safety and security please make sure that when performing GP measurements the plate is set in the same position as the operator s For more details please scroll down to 5 User Manual CCM 9 MPB 2 PRINCIPLE OF OPERATION 10 User Manual CCM Chapter 3 UCM Usage 3 1 Turn On Release n Figure 3 1 Turned On CCM When the CCM is turned on it dis
19. n the key on the right in this specific case it can be GP or HAND allows the user to choose which circuit to use for the measurement Figure 3 4 It s highly recommended to measure with the Ground Plane before doing the HAND measurement so that in extreme cases a high current will simply discharge on the ground In the Hand measurement mode the CCM will consider the real impedance value of the human body User Manual CCM 13 4 y MPB 3 CCM USAGE Figure 3 4 Hand or GP 3 4 Bandwidth Total the central key BW T allows the user to choose the visualization mode BANDWIDTH Display of the measurement divided by bands or selective measurement with the final result expressed in mA TOTAL Overall view of the measured value in percentage compared to the ICNIRP limit TOTAL MAX WLF AMF HH F You can find the formulas for LF MF and HF in figure 3 6 LF i a t ALEF t at x 100 mA M F t u valM FimA t x 100 0 Ama x fkHz IH Fi a t H F t val Ema 109 40 mA 14 User Manual CCM 4 y MPB 3 CCM USAGE Figure 3 5 BW T You can find an example of what happens in Figure 3 5 The Low band Filter starts at 40 Hz to 2 5 kHz IC bound 1 mA while the High band Filter starts at 0 1 MHz to 110 MHz IC bound 40 mA The value of the contact current in the range of frequencies ranging from 2 5 kHz to 100 kHz is displayed when the values of LF and HF are low For this reason it is suggested to
20. or that makes a conversion of the measured current to RMS The equation is the following E vera Erms T E The actual regulations defines the minimum requirements for the safety of workers in areas of risk and the limit values for the exposure to contact current 2 3 Contact Current The contact current flows when a person or an object serve as electrical conductors when reaching another metallic object immersed in an electromagnetic field the contact current is expressed in Amperes The moment right after the contact can imply a discharge of associated currents First attachment of 2013 35 EU In the workplace as well as in the world we live in the electric and magnetic fields are always present and can have natural or artificial origin T he natural electric fields are for example those produced by the accumulation of electric charges during a lightning while the natural magnetic fields are those that are found in nature such as the terrestrial one that orients the compass needle North South The electric and magnetic artificial fields are produced by artificial devices and systems such as electrical equipment or systems for the distribution of electricity The electromagnetic field can be defined as a physical phenomenon given by the simultaneous presence of an electric field and a magnetic field Moving from the source of the electromagnetic field the waves decrease in intensity 1t 1s therefore clear that the intensity is maxi
21. plays the MPB logo and the firmware version Figure 3 1 After a few seconds a warning message will appear as in Figure 3 2 and users have to declare to have read this manual and to be aware of the risks involved during the current measurement In case of negative answer by pressing DENY the device will automatically turn off 11 y MPB 3 CCM USAGE Figure 3 2 CCM Menu Once you accept the terms of use the device will remain in the STANDBY mode until you press the trigger to start a measurement 3 2 Standby Screen In Figure 3 3 is shown the standby screen On the top part you will find e Battery indicator e The Measurement Mode shows which kind of circuit is selected in that specific measurement session and we ll see that more accurately in next chapter there are two different measurement modes HAND for measurements that use the body impedance of the operator as a reference GP or GROUND PLANE for measurements that concern the supplied metal plate with a standardized impedance as a reference e The State indicates to the user whether the device is ready to make a measurement or not 12 User Manual CCM 4t MPB 3 CCM USAGE State Measurement Mode Battery level Figure 3 3 First Use 3 3 Hand or GP Please remember that the GP measurement mode does not guarantee reliable measurements due to safety reasons Please scroll back to 2 4 for more details In the main scree
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