MTB01 & MTB02 DIGITAL MULTITESTERS User Manual
Contents
1. Q mercury IEC 61010 500 mercury Item ref 600 101UK amp 600 102UK MTBO1 amp MTBO2 DIGITAL MULTITESTERS User Manual mercury avsl com mercury Please read this manual thoroughly and AN 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 the 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 rotary switch should be in the right position and no changeover of range shall be made during 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 e 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 tester may2. TECTION 15 seconds maximum 220Vrms DC Current RESOLUTION ACCURACY 200uA 100nA 2000uA 1uA 1 8 of rdg 2D 20mA 10uA 200mA 100uA 2 0 of rdg 2D 5A 10mA 2 0 of rdg 10D OVERLOAD PROTECTION F0 5A 250V amp F5A 240V fuse MEASURING VOLTAGE DROP 200mV MTBO1 amp MTBO2 User Manual mercury avsl com mercury Resistance RANGE RESOLUTION ACCURACY 2002 1 0 of rdg 10D 20002 200kQ 1000 x 1 096 of rdg 4D 2000kQ MAXIMUM OPEN CIRCUIT VOLTAGE 3V OVERLOAD PROTECTION 15 seconds maximum 220Vrms OPERATING INSTRUCTIONS DC amp AC VOLTAGE MEASUREMENT 1 Connect red test lead to VQmA jack black lead to COM jack 2 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 3 Connect test leads to device or circuit being measured 4 Turn on power of the device or circuit being measured voltage value will appear on Digital Display along with the voltage polarity DC CURRENT MEASUREMENT 1 Red lead to VQmA Black lead to COM for measurements between 200mA and 5A connect red lead to 5A jack with fully depressed 1 amp MTBO2 User Manual mercury avsl com mercury Set RANGE switch to desired DCA position Open the circuit to be measured and connect test leads in SERIES with the load in with current is to measure Rea
3. ad indication 1 is displayed Operating Environment 09 409 at lt 80 RH Storage Environment 109C 509C at lt 85 RH Power 9 1 x PP3 battery supplied Low battery indication Static electricity about 4mA Dimensions 126 x 70 x 22mm Weight 128g including battery 1 amp MTBO2 User Manual mercury avsl com Q mercury i e ZUUH 2 2000 Zum 3 200 mm 4 105 each 15m 5 IEC 61010 r V0mA 500V 500V mercury MTBO1 amp MTBO2 User Manual mercury avsl com mercury 1 LCD display 2 Range switch 3 hFE socket 4 10 jack 5 VQmA jack 6 COM jack Multitester comparison table Model pcv DCA Q pr e rir Technical Specifications Accuracies are guaranteed for 1 year 23 C 59 C less than 80 RH DC Voltage RANGE RESOLUTION ACCURACY 200mV 100uV 0 5 of rdg 3D 2000mV 20V 0 8 of rdg 5D 200V 100mV 500V 1 0 of rdg 5D MTBO1 amp MTBO2 User Manual mercury avsl com mercury AC Voltage RESOLUTION ACCURACY RANGE 200V 100mV 2 0 of rdg 10D 500V 2 096 of rdg 10D RESPONSE Average response calibrated in rms of a sine wave FREQUENCY RANGE 45Hz 450Hz OVERLOAD PROTECTION 500Vdc or 500Vrms for all ranges Audible Continuity DESCRIPTION 9 Built in buzzer sounds if resistance is less than 304 209 OVERLOAD PRO
4. d Tf the resistance is lower then 300 200 the buzzer will sound BATTERY AND FUSE REPLACEMENT Fuses rarely need replacement They usually blow when the tester is used incorrectly If 3 appears in on the display it indicates that the battery should be replaced To replace battery amp fuse F500mA 250V for mA terminal and F5A 250V for 5A terminal remove the 2 screws in the back of the case simply remove the old fuse or battery and replace with a new one Be careful to observe the correct polarity MTBO1 amp MTBO2 User Manual mercury avsl com mercury ACCESSORIES e Instruction manual e Set of test leads red and black e 9V PP3 battery EN61010 1 2010 A 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 MTBO1 amp MTBO2 User Manual
5. d current value on Digital Display Additionally 5A function is designed for intermittent use only Maximum contact time of the test leads with the circuit is 10 seconds with a minimum intermission time of 15 minutes between tests RESISTANCE MEASUREMENT N m Red lead to VQmA Black lead to COM Set RANGE switch to desired Q position 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 DIODE MEASUREMENT N m 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 The forward voltage drop in mV will be displayed If the diode is reversed figure 1 will be shown MTBO1 amp MTBO2 User Manual mercury avsl com mercury TRANSISTOR hFE MEASUREMENT I Set RANGE switch to the hFE position 2 Determine whether the transistor is PNP of NPN type and locate the Emitter Base and Collector leads Insert the leads into the correct holes of the hFE Socket 3 The meter will display the approximate hFE value at the condition of base current 100A and VCE2 8V AUDIBLE CONTINUITY TEST 1 Red lead to VQmA Black lead to COM 2 RANGE switch to 9 position 3 Connect test leads to two points of circuit to be teste
6. 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 or hFE 1 amp MTBO2 User Manual mercury avsl com mercury e Replace the battery as soon as the battery indicator 3 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 e 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 3 digits 1999 count 0 5 high Polarity Automatic indicated minus assumed plus Measure method double integral A D switch implement Sampling speed 2 times per second Over lo
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