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3-2-2. Technical data
DC voltage (DCV)
Range
Accuracy
200mV
2V
±(0.05%reading+3)
20V
200V
1000V
±(0.1%reading+5)
Input impedance: 10MΩ for all ranges;
Overload protection: 200mV range: 250VDC or AC peak value. Other range: 1000V DC or AC peak value.
AC voltage (ACV)
Range
Input frequency
200mV
50Hz–50kHz
2V
50Hz–20kHz
20V
200V
50Hz–5kHz
750V
50Hz–400Hz
The input value for accuracy guarantee should be larger than 10% of full range.
Input impedance: 2MΩ for all ranges.
Overload protection：200mV range: 250V DC or AC peak value, other range: 1000V DC or AC peak value.
DC current (DCA)
Range
Accuracy
20mA
±(0.35%reading+10)
200mA
2A
±(0.8%reading+10)
20A
Max. input voltage drop: 200mV
Max. input current: 20A（within 10s）
Overload protection: 2A/250V fuse，13A/250V fuse
AC current (ACA)
Range
Input frequency
200mA
50Hz–5kHz
2A
50Hz–400Hz
20A
Max. input voltage drop: 200mV
Max. input current: 20A（within 10s）
Overload protection: 2A/250V fuse，13A/250V fuse
Resistance (Ω）
Resolution
10uV
100uV
1mV
10mV
100mV
Accuracy
Resolution
10uV
100uV
±(0.8%reading+80)
1mV
10mV
±(1.0%reading+50)
100mV
Resolution
1uA
10uA
100uA
1mA
Accuracy
Resolution
±(0.8%reading+80)
10uA
100uA
±(1.0%reading+50)
1mA
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Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
than approx. (30±10) Ω.
4-10.Frequency measurement
Connect the test leads or shielded cable to COM and VΩHz terminal.
Set the function knob to frequency range, connect test leads or cable across to the signal source or load under
tested.
NOTE:
In noisy environment, it is preferable to use shielded cable for measuring small signal.
Be careful when measuring high voltage circuit.
Do not input voltage over DC 250V or AC peak value voltage aviod to damaging the meter.
4-11.Data hold
Press the hold switch, the data will keep on LCD.
4-12. Backlight displaying
Press
switch, backlight will turn on, press it again, it will turn off.
5. MAINTENANCE
Do not verify the circuit to avoid damaging. Power fuse： 200mA/250V; Fuse for measuring current: 2A/250V (this
fuse locate in the current input terminal), 13A/250V fuse locate the main circuit, must be replaced by qualified
personal.
NOTE:
Do not connect the voltage higher than DC1000V or AC 1000V rms.
Do not measure voltage at the Ω range.
When replacing fuse, please take away the test leads from the measuring point and power off at first.
Keep the instrument away from water, dust and shock.
Do not operate the meter in high temperature or strong magnetic place.
Do not use the abrasives or solvents to clean the meter.
5-1. Fuse replacement
NOTE: Please select fuse of the same specification to replace it.
Power fuse: 200mA/250V; Fuse for measuring current: 2A/250V (this fuse locate in the current input terminal),
13A/250V fuse locate the main circuit.
Power fuse replacement:
Pull out the power cord firstly, takes out the fuse jack on the top of power plug.
Take off the fuse, and replace an equivalent one then turn on the fuse jack.
2A fuse replacement
Press "mA" input jack by finger; take out the fuse jack after turning 90°angle by an inverse hour direction.
Take off the fuse, and replace an equivalent one then turn on the fuse jack.
After press the fuse into the fuse jack, turning 90°angle by an inverse hour direction.
13A fuse replacement (must be replaced by qualified personal.)
Screw off the four screws on the button shell by Phillips screwdriver, take off the upper shell.
TestEquipmentDepot.com
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