HTC DM 81 User Manual Download | Manualshive

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Summary of Contents for DM 81

Page 1: ...1...

Page 2: ...ght position for the testing To avoid electric shock and damaging the instrument the input signals are forbidden to exceed the specified limits Range switch position is forbidden to be changed at rand...

Page 3: ...e Resolution Accuracy 200mV 0 1mV 2 5 2V 1mV 1 8 5 20V 10mV 1 5 5 200V 100mV 750V 1V 2 7 Input Impendency 1M 200mV 2V effective 10M for other ranges Frequency Range 40Hz 400Hz 40Hz 100Hz 200V 700V Ove...

Page 4: ...100 2M 1K 20M 10K 2 5 200M 100K 5 5 10 Overload Protection 220V effective value Open circuit Voltage 1V 200M range 2 8V 200M range short display appox 10 digits measuring value displayed value 10 digi...

Page 5: ...Connect the black test lead to COM jack and the red to V jack 2 Set the rotary switch at the desired V range position connect test leads across the source or load under measurement you can get readin...

Page 6: ...ange situation and the higher range has to be selected c The socket mA s maximum current is 200mA d Since 20A is not fused the measuring time should be less than 10 seconds to prevent precision from a...

Page 7: ...not stable 7 Measuring Transistor hFE 1 Set the rotary switch to hFE range position 2 Determine whether the transistor under testing is NPN or PNP and locate the emitter base and collector leads Inse...

Page 8: ...e controller works properly NOTE a To avoid the intense light once applied this function b The emitter head vertically align to infrared receiver and the deviation is not more than 15o 11 Live Wire Re...

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