１
860N
3000 AUTO RANGE DIGIGAL DUAL DISPLAY
AC/DC CLAMP MULTIMETER
OPERATION MANUAL
This LCD Auto Range & Auto Power off Digital AC/DC clamp
multimeter is a portable, 3000-digit multimeter. It is ideally suited
for field, laboratory, shop and home applications.
1. SAFETY INFORMATION
The following safety information must be observed toinsure
maximum personal safety during the operation atthis meter.
1) When measuring voltage ensure that instrument is not
switched to the current range, resistance range, diode and
continuity range, capacitance range or temperature range.
2) Use extreme care when measuring voltage above 50V.
especially from sources where high energy is existed.
3) Avoid making connections to "live" circuits whenever possible.
4) Before making resistance measurements, diode or continuity
test, capacitance test or temperature test, ensure that the circuit
under test isde-energized.
5) Always ensure that the correct function and range is selected.
6) Extreme care should be taken when using the instrument to
conjunction with a current transformer connected to the terminals
if an open circuit occurs.
7) Ensure that the test leads and probes are in good condition
with no damage to the insulation.
8) Take care not to exceed the over-load limits as given in the
specifications.
9) Before opening the cover of the battery cabinet to replace
batteries. disconnect the test leads from any external circuit, set
the selector switch to "OFF" position.
10) Keep the fingers after the protection ring when measuring
through the instrument lead.
1
1) Change the battery when the symbol “ ” appears to avoid
incorrect data.
2. Panel Layout
1) D.HOLD/
Back Light
key
：
In any range, push the key, the
present display value will be locked and the " H " symbol will
appear, push it again to exit HOL and the " H" symbol disappear.
Press “D.HOLD” button more than 2 seconds, the back light will
light, press it more than 2 seconds again, the back light will light
off.
2) Rotary Switch: use this switch to select functions and ranges.
3) MAX/MIN key: Press, measurement function will follow the
order of the maximum
→
minimum
→
largest smallest
difference conversion cycle, long press to restore the normal
status.
4) REL key
：
Push the key, the present display value will be stored
in memory, then the new display value is the difference between
input value and stored data. In Hz/Duty measurement, it can not
work.
5) SELECT key: This key work on the "CAP
Ω" range only.
Push the key to choose resistance, diode or continuity test.
6
）
Hz/DUTY key
：
In Hz range, push the key, you can measure the
duty,push again, go back to Hz measurement. In voltage
range, push it, you can measure Hz and duty, but the
measurement range will be smaller,and the auto range mode
will be changed to manual range mode.
7) LCD Display:
LCD Dual Display, facilitates reads the data.
8)
V ΩT+ Input Jack
、
COM/T- Input Jack
9) Clamp Light easy for test the electric current in hidden place.
2. SPECIFICATIONS
2.1 GENERAL SPECIFICATIONS
Display: 3 3/4 digit LCD with a max. reading of 3999.
Range control: Auto range control.
Polarity: Automatic negative polarity indication.
Zero adjustment: Automalic.
Overrange indication: Only the "OL" display.
Lowbattery: The "
" is display when the battery voltage is below 7.2V.
Auto Power Off: 30 minutes after stopping the switch or no push
button, the meter automatically enter to power off mode.Push
button or run switch, auto power off disable.
Safety Standards: The meter is up to the standards of IEC1010
Double Insulation, Pollution Degree 2, Overvoltage Category
Ⅲ
.
Clamp opening size: 65mm.
Operating Environment: Temperature 32
～
104
°
F(0
～
40
℃
),
humidity
＜
80%RH.
Storage Environment: Temperature -4
～
140
°
F(-20
～
60
℃
),humidity
＜
90%RH.
Power supply: 9V Zinc-carbon battery.
Dimension: 27
5(H)×120(W)×32(D)mm.
Weight: Approx. 562g (including batteries).
2.2 ELECTRICAL SPECIFICATIONS
Accuracies are ±(% of rnumder in last digit) at 23
±
5
℃
,
≤
70%RH.
2.2.1 DC Voltage
Range
Accuracy
Resolution
600mV
1.0% of rdg+5digits
0.1mV
6V
1mV
60V
10mV
600V
100mV
1000V
1.5% of rdg+5 digits
1V
Overload protection: 1000V DC/750Vrms AC
Impedance: 10M
Ω，
More than 100M
Ω
on 400mV scale
2.2.2 AC Voltage(RMS)
Range
Accuracy
Resolution
Frequency
600mV
3.0% of rdg+15 digits
0.1mV
40
～
100Hz
6V
1.5% of rdg+5 digits
1mV
40
～
400Hz
60V
10mV
600V
100mV
750V
2.5% of rdg+5 digits
1V
40
～
100Hz
Average sensing, calibrated to rms of sine wave
Overload protection: 1000V DC/750Vrms AC
Impedance: 10M
Ω
2.2.3 DC Current
Range
Accuracy
Resolution Frequency
200A
3.0% of rdg+10 digits
0.1A
-
3000A
0
～
1000
3.5% of rdg+20 digits
1A
1000
～
2000
5.5% of rdg+20 digits
2000
～
3000
6.5% of rdg+40 digits
Overload protection:3000Arms within 60 seconds
2.2.4 AC Current
Range
Accuracy
Resolution Frequency
200A
3.0% of rdg+12 digits
0.1A
50
～
60Hz
3000A
0
～
1000
3.5% of rdg+12 digits
1A
1000
～
2000
5.5% of rdg+22 digits
2000
～
3000
6.5% of rdg+42 digits
Average sensing, calibrated to rms of sine wave
Overload protection: 3000Arms within 60 seconds
2.2.5 Resistance
Range
Accuracy
Resolution
6
00Ω
1.0% of rdg+8 digits
0.1Ω
6k
Ω
1Ω
60k
Ω
10Ω
400k
Ω
100Ω
6
MΩ
1k
Ω
6
0MΩ
2.5% of rdg+15 digits
10k
Ω
Overload protection: 250V DC/250Vrms AC
2.2.6 Capacitance
Range
Accuracy
Resolution
