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USER'S MANUAL 

BM079 & BM078 DC+AC  
BM077 DC/AC 
BM076, BM073 & BM072 AC 
Clamp-on Multimeter Series 

Summary of Contents for BM072

Page 1: ...USER S MANUAL BM079 BM078 DC AC BM077 DC AC BM076 BM073 BM072 AC Clamp on Multimeter Series ...

Page 2: ...ENTLY CONNECTED EQUIPMENT OVERVOLTAGE CATEGORY lll CAT III is for equipment intended to form part of a building wiring installation Such equipment includes socket outlets fuse panels and some MAINS installation control equipment OVERVOLTAGE CATEGORY lV CAT IV is for equipment installed at or near the origin of the electrical supply to a building between the building entrance and the main distribut...

Page 3: ...igned to apply around or remove from uninsulated hazardous live conductors But still individual protective equipment must be used if hazardous live parts in the installation where measurement is to be carried out could be accessible CAUTION Disconnect the test leads from the test points before changing meter functions INTERNATIONAL ELECTRICAL SYMBOLS Caution Refer to the explanation in this Manual...

Page 4: ...put Jack for all functions EXCEPT non invasive DCA DC ACA or ACA current functions 7 Common Ground reference Input Jack for all functions EXCEPT non invasive DCA DC ACA or ACA current functions 8 Push buttons for special functions features 9 Jaw trigger for opening the clamp jaw 10 Hand Finger Barrier to indicate the limits of safe access of the meter 11 Clamp Jaw for DC or AC current magnetic fie...

Page 5: ... are made through the test lead terminals COM Defaults at ACV Function Press SELECT button momentarily to select DCV DC ACV Line level Hz or EF NCV function in sequence Note ACV and hence AC DCV Line level Hz function is equipped with digital low pass filter and is capable of dealing with VFD Variable Frequency Drives signals It also improves ACV reading stability in noisy electrical environments ...

Page 6: ...t end of the stationary clamp jaw which detects electric field surrounds energized conductors It is ideal for tracing live wiring connections locating wiring breakage and to distinguish between live or earth connections Probe Contact EF Detection For more precise indication of live wires such as distinguishing between Live and Ground connections use one single probe to test via terminal COM for di...

Page 7: ...ntial current like identifying leakage current measurement Align the conductor s to the Jaws center indicators Regular or AmpTip indicators where applicable as much as possible to get the best measuring accuracy For removal press the jaw trigger and remove the jaws from the conductor s Adjacent current carrying devices such as transformers motors and conductor wires may affect measurement accuracy...

Page 8: ... 077 only DC ACA Models 079 078 only Hz Input is made via the clamp jaws with best accuracy specified near the jaw tip area for small conductors low current measurements Defaults at ACA function Press SELECT button momentarily to select the subject functions in sequence ...

Page 9: ...DCA Models 079 078 077 only DC ACA Models 079 078 only Hz Input is made via the clamp jaws with best accuracy specified at the jaw center for regular current measurements Press SELECT button momentarily to select the subject functions in sequence ...

Page 10: ...that indicates a leaky diode defective A zero reading indicates a shorted diode defective An OL indicates an open diode defective Reverse the test leads connections reverse biased across the diode The digital display shows OL if the diode is good Any other readings indicate the diode is resistive or shorted defective CAUTION Using Resistance Continuity or Diode function in a live circuit will prod...

Page 11: ... insert the banana plug type K temperature bead probe Bkp60 with correct polarities You can also use a plug adapter Bkb32 Optional purchase with banana pins to type K socket to adapt other type K standard mini plug temperature probes CAUTION 1 Using Capacitance function in a live circuit will produce false results and may damage the meter In many cases the suspected component s must be disconnecte...

Page 12: ...ame signal current with inadequate strength or fluctuation beyond 10 check the following to avoid the risk of unwanted flame relay dropout For gas or oil flames Minipeeper Low supply voltage Detector location Defective detector wiring Dirty viewing windows Faulty Minipeeper For oil flames Photocell Detector location wiring Smoky flame or poorly adjusted air shutter Faulty Photocell Temperature ove...

Page 13: ...generated from motor spinning for checking phase connections of Motors Normal sensitivity mode for identifying phase sequence of MAINS electricity supply CAUTION Proper Rotation detection relies on solid signal connection to all three test lead terminals simultaneously Any single disconnection will lead to detection failure and may produce false indication To verify signal connection and hence pro...

Page 14: ...tively should get a clockwise motor movement Using the Complementary Beeper feature The Complementary Beeper feature is selected in Power up option Press and hold the REC button while turning the meter on to enable If the segments indicate a clockwise movement the beeper sounds a single long beep per segment cycle If the segments indicate a counter clockwise movement the beeper sounds 3 short beep...

Page 15: ...76 only Press the SELECT button for 1 second or more to toggle the LCD backlight The backlight will also be turned off automatically after 32 seconds to extend battery life Intelligent Auto Power Off APO The Auto Power off APO mode turns the meter off automatically to extend battery life after approximately 32 minutes of no specified activities where applicable 1 Rotary switch or push button opera...

Page 16: ...d by qualified technician Refer to the LIMITED WARRANTY section for obtaining warranty or repairing service Accuracy and Calibration Accuracy is specified for a period of one year after calibration Periodic calibration at intervals of one year is recommended to maintain meter accuracy Refer to the LIMITED WARRANTY section for obtaining calibration repairing or warranty service Cleaning and Storage...

Page 17: ...tive humidity at 40 C Pollution degree 2 Storage Temperature 20 C to 60 C 80 R H with battery removed Altitude Operating below 2000m Temperature Coefficient nominal 0 15 x specified accuracy C 0 C 18 C or 28 C 40 C or otherwise specified Sensing True RMS Safety Double insulation per UL IEC EN61010 1 Ed 3 0 IEC EN61010 2 033 Ed 1 0 CAN CSA C22 2 No 61010 1 Ed 3 0 IEC EN61010 2 032 Ed 3 0 IEC EN6101...

Page 18: ...78 077 4 3mA for others Low Battery Below approx 2 85V for Capacitance Hz Below approx 2 5V for other functions APO Timing Idle for 32 minutes APO Consumption 5µA typical Dimension LxWxH 223 x 76 x 37mm for Models 079 078 077 217 x 76 x 37mm for Models 076 073 072 Weight 234gm for Models 079 078 077 186gm for Models 076 073 072 Jaw opening Conductor diameter 35mm max for Models 079 078 077 30mm ma...

Page 19: ... Input Impedance 10MΩ 100 pF nominal AC Voltage with Digital Low Pass Filter RANGE Accuracy 50Hz 60Hz 600 0V 1 0 5d Input Impedance 10MΩ 100 pF nominal DC AC Voltage with Digital Low Pass Filter Models 079 078 Only RANGE Accuracy DC 50Hz 60Hz 600 0V 1 2 7d Input Impedance 10MΩ 100 pF nominal PEAK rms ACV ACA of Models 079 078 076 only Response 80ms to 90 Audible Continuity Tester Audible Threshold...

Page 20: ...µA 1 0 5d 3 5mV µA Temperature Models 079 076 only RANGE Accuracy 40 0oC 99 9oC 1 0 0 8oC 100oC 400oC 1 0 1oC 40 0oF 211 8oF 1 0 1 5oF 212oF 752oF 1 0 2oF K type thermocouple range accuracy not included AmpTipTM clamp on ACA RANGE Accuracy1 2 3 4 50Hz 60Hz 60 00A 1 5 5d 1 Induced error from adjacent current carrying conductor 0 01A A 2 Specified with Relative Zero mode applied to offset the non ze...

Page 21: ...ffset the non zero residual readings if any 3 Add 10d to the specified accuracy 4A Regular Clamp on ACA RANGE Accuracy1 2 3 50Hz 100Hz 60 00A 4 5 600 0A 1 8 5d 100Hz 400Hz 60 00A 4 5 600 0A 2 0 5d 1 Induced error from adjacent current carrying conductor 0 01A A 2 For Models 079 078 077 Maximum Crest Factor 2 1 at full scale 4 1 at half scale 3 For Models 076 073 072 specified accuracy is for measu...

Page 22: ...odels 079 078 only RANGE Accuracy1 2 DC 50Hz 100Hz 60 00A 3 600 0A 2 2 7d 100Hz 400Hz 60 00A 3 600 0A 2 7 7d 1 Induced error from adjacent current carrying conductor 0 01A A 2 Specified with DC Zero mode applied to offset the non zero residual readings if any 3 Add 10d to the specified accuracy 9A Hz Line Level Frequency Function Sensitivity1 Sine RMS Range 600V 50V 5 00Hz 999 9Hz 60A AmpTipTM 40A...

Page 23: ...ion Bar graph segments audible beep tones proportional to the field strength Detection Frequency 50 60Hz Detection Antenna Inside the top side of the stationary jaw Probe Contact EF Detection For more precise indication of live wires such as distinguishing between live and ground connections use one single probe to test via terminal COM for direct contact EF Detection with best sensitivity ...

Page 24: ...ce prepaid to BRYMEN TECHNOLOGY CORPORATION BRYMEN assumes no risk for damage in transit BRYMEN will at its option repair or replace the defective product free of charge However if BRYMEN determines that the failure was caused by misused altered neglected or damaged by accident or abnormal conditions of operation or handling you will be billed for the repair THIS WARRANTY IS EXCLUSIVE AND IS IN LI...

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