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1) Set the function switch to the VAC position.
2) Insert the black test lead banana plug into the negative (COM) jack.
3) Insert red test lead banana plug into the positive (VΩCAP) jack.
4) Touch the test probe tips to the circuit under test.
5)  Read the voltage in the display. The display will indicate the proper 

decimal point, value and symbol (AC, V, etc).

DC CURRENT MEASUREMENT

CAUTION: Do not make current measurements on the 10A scale for 
longer than 30 seconds. Exceeding 30 seconds may cause damage to the 
meter and/or the test leads.

1) Insert the black test lead banana plug into the negative (COM) jack.
2)  For current measurements up to:
•  4000µA DC - set the function switch to the µA position and insert the 

red test lead banana plug into the (µA) jack.

•  400mA DC - set the function switch to the mA range and insert the red 

test lead banana plug into the (mA) jack.

•  10A DC - set the function switch to the A position and insert the red 

test lead banana plug into the 10A jack.

3)  Press the mode button until “DC” appears in the display.
4)  Remove power from the circuit under test, then open up the circuit at 

the point where you wish to measure current.

5) Touch the black test probe tip to the negative side of the circuit.
6) Touch the red test probe tip to the positive side of the circuit.
7) Apply power to the circuit.
8) Read the current in the display. The display will indicate the proper 
decimal point, value and symbol.

AC CURRENT MEASUREMENT

WARNING: To avoid electric shock, do not measure AC current on any 
circuit whose voltage exceeds 250V AC.

CAUTION: Do not make current measurements on the 10A scale for 
longer than 30 seconds. Exceeding 30 seconds may cause damage to the 
meter and/or the test leads.

1)  Insert the black test lead banana plug into the negative (COM) jack.
2) For current measurements up to:

Содержание QM1549

Страница 1: ...RELATIVE MODE DATA HOLD 4000 DISPLAY COUNT CAT IV 600V LIFETIME WARRANTY Autoranging True RMS IP67 Digital Multimeter SPECIALIST...

Страница 2: ...g this manual for ease of reference Improper use of this meter can cause damage shock injury or death Always remove the test leads before replacing the battery or fuses Before using the meter please i...

Страница 3: ...Hz Up to 10MHz FUNCTIONS Continuity Yes Data Hold Yes Relative Measurement Yes Diode Test Yes Duty Cycle Yes Autoranging Yes LCD Backlight Yes Auto Power Off Yes The fuse battery compartment are at th...

Страница 4: ...continuity and capacitance It also allows you to select between AC or DC current measurements Function Switch Select a measurement range by turning the switch to the preferred option LCD Screen Readi...

Страница 5: ...the HOLD button to hold a measurement on screen for reference at a later time HOLD will display on the screen Press the HOLD button again to return back to normal measurements Input Jacks V CAP Positi...

Страница 6: ...to observe the correct polarity red lead to positive black lead to negative 5 Read the voltage in the display The display will indicate the proper decimal point and value If the polarity is reversed t...

Страница 7: ...d insert the red test lead banana plug into the mA jack 10A DC set the function switch to the A position and insert the red test lead banana plug into the 10A jack 3 Press the mode button until DC app...

Страница 8: ...king any resistance measurements Remove the batteries and unplug the line cords 1 Set the function switch to the position 2 Insert the black test lead banana plug into the negative jack COM and the re...

Страница 9: ...ng the diode check is the forward voltage CAPACITANCE MEASUREMENTS WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before taking any capacitance me...

Страница 10: ...Range 50 400Hz All AC voltage ranges are specified from 5 to 100 of range All AC voltages are autoranging except for 400mV RANGE RESOLUTION ACCURACY 400mV 0 1mV 0 5 reading 2 digits 4V 1mV 1 2 reading...

Страница 11: ...00 A 1 A 1 5 reading 3 digits 40mA 10 A 400mA 100 A 10A 10mA 2 5 reading 5 digits Overload Protection 0 5A 1000V and 10A 1000V fuse Maximum Inputs 400mA DC RMS on A mA ranges 10A DC RMS on 10A range A...

Страница 12: ...C or 600VAC RMS DUTY CYCLE RANGE RESOLUTION ACCURACY 0 1 99 9 0 1 1 2 reading 2 digits 12 Pulse Width 100 s 100ms Frequency Width 5Hz 150kHz Sensitivity 0 8V RMS Overload Protection 600VDC or 600VAC R...

Страница 13: ...ng 4 digits FREQUENCY Overload Protection 600VDC or 600VAC RMS Sensitivity 0 8V RMS while 1MHz 3V RMS while 1MHz 13 THRESHOLD TEST CURRENT Less than 150 0 3mA AUDIBLE CONTINUITY Overload Protection 60...

Страница 14: ...tery cover back in place secure with the screws REPLACING FUSES 1 Turn power off and disconnect the test leads from the meter 2 Remove the cover 3 Gently remove the old fuse and install the new fuse i...

Страница 15: ...Low Battery Indication BAT is displayed if battery voltage drops below operating voltage Battery 1 x 9V Operating Temperature 0 C to 50 C Storage Temperature 20 C to 60 C Operating Humidity 70 Storage...

Страница 16: ...pect your product is defective faulty cease using the product when the suspected defect fault arises and return the product along with proof of purchase to the place of purchase or distributor for ass...

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