MTM01 DIGITAL MULTITESTER User Manual
Contents
1. 3 4 5 Ple Connect red lead to VO black lead to COM Set the range switch to desired range If the resistance being measured is connected to a circuit turn off power and discharge all capacitors before measurement Connect test leads to circuit being measured Read resistance value on Digital Display ase note e For resistance measurements gt 1MQ the meter may take a few seconds to stabilize reading This is normal for high resistance measurement e When the input is not connected i e at open circuit the symbol 1 will be displayed as an over range indicator MTMO1 User Manual mercury avsl com mercury CAPACITY MEASUREMENT 1 Connect the BLACK test lead to the COM jack and the RED to the mA jack 2 Set the Range switch at F position NOTE The polarity of the RED lead is positive 3 Connect test leads across the capacitor under measure and be sure the polarity of connection is observed Please Note To avoid damage to the Meter disconnect circuit power and discharge all high voltage capacitors before measuring Capacitance The tested capacitor should be discharged before the testing procedure Never apply voltage to the input or serious damage may result CONTINUITY TEST 1 Connect the BLACK test lead to the COM jack and the RED to the VQ jack Note The polarity of the red test lead is positive 2 Set the range switch to range Connect the tes2. mercury DIGTAL MULTIMETER e AUTO POWET OFF 6 258 EE 2 Item ref 600 100UK 01 DIGITAL MULTITESTER User Manual mercury avsl com mercury Please read this manual thoroughly and A ensure all contents are fully understood before using the apparatus Warning To avoid possible electric shock or personal injury and to avoid possible damage to the tester or to the equipment under test adhere to these following rules e Before using the tester inspect the case Do not use the tester if it is damaged or the case or part of the case is removed Look for cracks or missing plastic Pay attention to the insulation around the connectors e Inspect the test leads for damaged insulation or exposed metal Check the test leads for continuity e Do not apply more than the rated voltage as marked on the tester between the terminals or between any terminal and grounding e The rotary switch should be in the right position and no changeover of range shall be made while measurement is conducted to prevent damage e When the tester is working at an effective voltage over 60V in DC or 30Vrms in AC special care should be taken for there is danger of electric shock e Use the proper terminals function and range for your measurements not use or store the tester in an environment of high temperature humidity explosive flammable damp or of a strong magnetic field The performance of the tes
3. being measured voltage value will appear on Digital Display along with the voltage polarity Please note In small range the meter may display an unstable reading when the test leads have not been connected to the load to be measured It is normal and will not affect the measurements When the meter shows the over range symbol 1 a higher range must to be selected To avoid damage to the meter don t measure a voltage which exceeds 600Vdc for DC voltage measurement or 600Vac for AC voltage measurement CURRENT MEASUREMENT 1 For reading less than 200mA connect red lead to mA and black lead to COM for measurements between 200mA and 10A connect red lead to 10A ensure jacks are fully depressed MTMO1 User Manual mercury avsl com mercury Set the range switch to desired AC or DC position If the current magnitude to be measured is not known beforehand set the ranges switch to the highest range position and then reduce it range by range until satisfactory resolution is obtained Open the circuit to be measured and connect test leads in SERIES with the load in with current is to measure Current reading will be displayed on LCD for DC current measurement the polarity of the red probe will also be indicated Please note When the display shows the over range symbol 1 a higher range must be selected In addition 10A function is designed for intermittent use only RESISTANCE MEASUREMENT 1 2
4. e meter is protected by fuse A mA F0 5A 600V Fast Breaking capacity is 10KA dimensions 20 x 5mmd B 10A F10A 600V Fast Breaking capacity is 10KA dimensions are 20 x 5mm MTMO1 User Manual mercury avsl com mercury Replace the case bottom and reinstall the three screws Never operate the meter unless the case bottom is fully closed ACCESSORIES e Instruction manual e Set of test leads red and black e 9V PP3 battery C EN61010 1 2010 This product is classed as Electrical or Electronic equipment and should not be disposed with other household or commercial waste at the end of its useful life The goods must be disposed of according to your local council guidelines Errors and omissions excepted Copyright 2014 AVSL Group Ltd MTMO1 User Manual
5. ill be displayed about 2 8V Overload Protection 250V DC AC rms DC Current RANGE RESOLUTION ACCURACY 1 8 of rdg 2D 200mA 100uA 2 0 of rdg 2D x 2 096 of rdg 10D Overload Protection mA F0 5A 600V fuse 10A F10A 600V fuse Voltage Drop 200mV AC Current RANGE RESOLUTION ACCURACY 2 096 of rdg 2D 200mA 100uA 2 0 of rdg 2D x 2 5 of rdg 10D Overload Protection mA F0 5A 600V fuse DT9205A DT9207A DT9208A 10A F10A 600V fuse Voltage Drop 200mV Frequency Range 40Hz 400Hz Response Average calibrated in rms of sine wave MTMO1 User Manual mercury avsl com mercury Resistance RANGE RESOLUTION ACCURACY 1 0 of rdg 4D 1 0 of rdg 10D 5 rdg 10 10D Open Circuit Voltage about 3V Overload Protection 250V DC AC rms Capacitance RANGE RESOLUTION ACCURACY 10pF 200nF 100pF 4 0 of rdg 5D Overload Protection F0 5A 600V fuse Over load protect 250V DC AC rms MTMO1 User Manual mercury avsl com Q mercury OPERATING INSTRUCTIONS VOLTAGE MEASUREMENT 1 2 Connect red test lead to VO jack black lead to COM jack Set RANGE switch to desired VOLTAGE position if the voltage to be measured is not known beforehand set switch to the highest range and reduce it until satisfactory reading is obtained Connect test leads to device or circuit being measured Turn on power of the device or circuit
6. s displayed Operating Environment 00 400 at lt 80 RH Storage Environment 109C 509C at lt 85 RH Power 9Vdc 1 x PP3 battery supplied Low battery indication E Dimensions 190 x 90 x 33mm Weight 190g including battery MTMO1 User Manual mercury avsl com mercury LCD HOLD Button Range switch A mA terminal COM terminal VQ terminal 10A termina MTMO1 User Manual mercury avsl com mercury Multitester comparison table Model DCA ACA 9 Pr e pec 4 Technical Specifications Accuracies are guaranteed for 1 year 23 C 59 C less than 80 RH DC Voltage RANGE RESOLUTION ACCURACY 0 8 of rdg 5D Input Impedance 10MQ Overload Protection 1000V DC or 750V AC rms Max Input voltage 1000V DC AC Voltage RESOLUTION ACCURACY RANGE 200V 100mV 2 0 of rdg 10D 500V 2 0 of rdg 10D Input Impedance 10MQ Frequency Range 40Hz 400Hz Overload Protection 1000V DC or 750V AC rms Response Average calibrated in rms of sine wave Max Input voltage 750V AC rms MTMO1 User Manual mercury avsl com mercury RANGE DESCRIPTION e Built in buzzer sounds if resistance Open circuit L is less than 30 20Q about 2 8V E The approximate forward voltage Open circuit voltage drop w
7. t leads across the load to be measured 4 If the circuit resistance is lower than about 30x 20 the built in buzzer will sound a DIODE MEASUREMENT E Connect red lead to VOmA black lead to COM Set RANGE switch to 3 position Connect the red test lead to the anode of the diode to be measured and black test lead to cathode ST MTMO1 User Manual mercury avsl com mercury 4 The meter will show the approximate forward voltage of the diode If the connections are reversed 1 will be shown on the display TRANSISTOR hFE MEASUREMENT 1 Set the range switch to hFE range 2 Connect the adapter to the COM jack and the hFE jack Don t reverse the connection 3 Identify whether the transistor is NPN or PNP type and locate Emitter Base and Collector lead Insert the leads of the transistor to be tested into the proper holes of the transistor test socket of the adaptor 4 LCD display will show the approximate hFE value BATTERY AND FUSE REPLACEMENT 1 Battery and fuse replacement should only be done after the test leads have been disconnected and power is off 2 Loosen screws with suitable screwdriver and remove case bottom 3 The meter is powered by a single 9V PP3 battery Snap the battery connector leads to the terminals of a new battery and reinsert the battery into the case top Dress the battery leads so that they will not be pinched between the case bottom and case top 4 Th
8. ter may deteriorate after being exposed to any of these elements e When using the test leads keep your fingers behind the finger guards e Disconnect circuit power and discharge all high voltage capacitors before testing resistance continuity diodes MTMO1 User Manual mercury avsl com mercury e Replace the battery as soon as the battery indicator appears With a low battery the meter may produce false readings that can lead to electric shock and personal injury e Remove the connection between the testing leads and the circuit being tested and turn the meter power off before opening the meter case e The internal circuit of the meter shall not be altered at will to avoid damage of the meter and any accident A soft cloth and mild detergent should be used to clean the surface of the tester on a regular basis No abrasive and solvent should be used to prevent the surface of the tester from corrosion or damage e The tester is suitable for indoor use only e Turn the tester power off when it is not in use and take out the battery when not using for a long time Check the battery regularly replace the battery immediately if any signs of leaking appear Battery acid will damage the tester General Specifications Max display LCD 1999 count 67 x 42mm Polarity Automatic indicated minus assumed plus Measure method double integral A D switch implement Sampling speed 2 times per second Over load indication 1 i
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