１
3 1/2 DIGITAL DOUBLE OPEN JAW
AC CLAMP MULTIMETER
OPERATION MANUAL
1. SAFETY INFORMATION
The following safety information must be observed to insure
maximum personal safety during the operation at this meter.
1.1 Do not operate the meter if the body of meter or the
test lead look broken.
1.2 Check the main function dial and make sure it is at the
correct position before each measurement.
1.3 Do not perform resistance test on a live power system.
1.4 Do not apply voltage between the test terminals
and test terminal to ground that exceed the maximum limit
record in this manual.
1.5 Exercise extreme caution when measuring live system
with voltage greater than 60V DC or 30V AC.
1.6 Change the battery when the " " symbol
appears to avoid incorrect data.
2. Panel Layout
(1) Clamp jaws
:
Opens 38mm to enclose conductor.
(2), (3) Jaw-opening handle
:
Opens and closes the jaws.
(4) Rotary Switch
:
use this switch to select functions and ranges.
(5) D.HOLD key
：
In any range, push the key, the present display
value will be locked and the "DH" symbol will appear, push it
again to exit HOLD and the "DH" symbol disappear.
(6) CDS sensor: The CDS sensor can reaction to the ambient
brightness range, then automatically control the LCD
backlight to lighten or go out.
(7) LCD Display
(8)
Ω
Input Jack.
(9) COM Input Jack.
(10) V Input Jack.
3. SPECIFICATIONS
3.1 GENERAL SPECIFICATIONS
Display: 3 1/2 digit LCD with a max. reading of 1999.
Polarity: Automatic negative polarity indication.
Zero adjustment: Automatic.
Over-range indication: Only the "1" or "-1" display.
Low battery indication: " "
Safety Standards: The meter is up to the standards of
IEC1010 Double Insulation, Pollution Degree 2, Over-voltage
Category
Ⅲ
.
Data hold: Push the D.HOLD key and the DH sign will appear on
the display.
Clamp opening size: 38mm.
Operating Environment:
Temperature 32
～
104
℉
(0
～
40
℃
), humidity
＜
80%RH.
Storage Environment:
Temperature -4
～
140
℉
(-20
～
60
℃
), humidity
＜
90%RH.
Power supply: 3×1.5V AAA batteries.
Dimension: 193(H)×73(W)×26(D)mm.
Weight: Approx. 325g (including battery).
3.2 ELECTRICAL SPECIFICATIONS
Accuracies are ± (% of r number in last digit)
at 23
±
5
℃
,
≤
75%RH.
3.2.1 DC Voltage
Range Accuracy
Resolution
500V
0.8% of rdg + 2 digits
1V
Overload protection: 500V DC / 500V rms AC
Impedance: 10M
Ω
3.2.2 AC Voltage
Range Accuracy
Resolution
500V
1.2% of rdg + 3 digits
1V
Average sensing, calibrated to rms of sine wave
Frequency: 40
～
400Hz
Overload protection: 500V DC / 500V rms AC
Impedance: 10M
Ω
3.2.3 AC Current
Range Accuracy
Resolution
20A 10mA
200A
2.0% of rdg + 5 digits
0.1A
400A
2.5% of rdg + 5 digits
1A
Average sensing, calibrated to rms of sine wave
Frequency: 50
～
60Hz
Overload protection: AC 400A within 60 seconds
