HOLDPEAK
870CR
OPERATION MANUAL
This LCD Auto Range & Auto Power off Digital AC/DC clamp
multimeter is a portable, 3 3/4-digit multimeter. It is ideally suited
for field, laboratory, shop and home applications.
1. SAFETY INFORMATION
The following safety information must be observed to insure
maximum personal safety during the operation at this 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)
Rotary Switch: use this switch to select functions and ranges.
2)
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.
3)
SELECT key: This key work on the "CAP
Ω" range only.
Push the key to choose resistance, diode or continuity test.
4)
RANGE key
：
Push the key to select manual mode, push it
again to change the range, press the key for more than 2
seconds to go back auto range mode. But in Hz/Duty and
Capacitance measurement, it can not select manual range mode.
5)
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.
6
）
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.
7)
LCD Display
：
LCD Dual Display, facilitates reads the data.
8)
T+
V Ω Input Jack
、
COM Input Jack
、
T- Input Jack
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: Automatic.
Over range indication: Only the "OL" display.
Low battery: 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: 45mm.
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: 225(H)×77(W)×45(D)mm.
Weight: Approx. 330g (including batteries).
2.2 ELECTRICAL SPECIFICATIONS
Accuracies are ±(% of rnumber in last digit) at 23
±
5
℃
,
≤
70%RH.
2.2.1 DC Voltage
Range
Accuracy
Resolution
400mV
0.8% of rdg+5digits
0.1mV
4V
1.0% of rdg+5digits
1mV
40V
10mV
400V
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
Range
Accuracy
Resolution
Frequency
4V
1.5% of rdg+5 digits
1mV
50
～
400Hz
40V
10mV
400V
100mV
750V
2.5% of rdg+5 digits
1V
50
～
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
-
1000A
0
～
800
3.5% of rdg+10 digits
1A
800
～
1000
6.5% of rdg+10 digits
Overload protection: 1000Arms within 60 seconds
2.2.4 AC Current
Range
Accuracy
Resolution Frequency
400A
3.0% of rdg+10 digits
0.1A
50
～
400Hz
1000A
0
～
800
3.5% of rdg+10 digits
1A
800
～
1000
6.5% of rdg+10 digits
Average sensing, calibrated to rms of sine wave
Overload protection: 1000Arms within 60 seconds
2.2.5
AC Voltage(True RMS)
Range
Resolution
Accuracy
Sensitivity
400mV
0.1mV
±
2.0% of rdg+15 digits
40Hz-1kHz
4V
1mV
±
1.2% of rdg+10 digits
40Hz-1kHz
40V
10mV
±
1.2% of rdg+10 digits
40Hz-10kHz
400V
100mV
±
1.0% of rdg+10 digits
40Hz-400Hz
750V
1V
±
1.0% of rdg+10 digits
40Hz-400Hz
1. Input impedance : > 10M
Ω
Ohm ACV True RMS.
2. Overload protect : 1000V DCV or ACV peak value
.
3. Press
“Range” button for select ACV 400mV range.
2.2.6 Resistance
Range
Accuracy
Resolution
400Ω
1.5% of rdg+15 digits
0.1Ω
4k
Ω
1.2% of rdg+15 digits
1Ω
40k
Ω
10Ω
400k
Ω
100Ω
4
MΩ
1k
Ω
40MΩ
2.5% of rdg+15 digits
10k
Ω
Overload protection: 250V DC/250Vrms AC
2.2.7 Capacitance
Range
Accuracy
Resolution
40nF
6.0% of rdg+10 digits
10PF
400nF
3.5% of rdg+5 digits
100PF
4
μ
F
1nF
40
μ
F
10nF
100
μ
F
6.0% of rdg+10 digits
100nF
Overload protection: 250V DC/250Vrms AC
2.2.8 Frequency
Range
Accuracy
Resolution
Sensitivity
10Hz
1.2% of rdg+10 digits
0.01Hz
Range of input
voltage:1.5V~1
0V,
If input
voltage over
range, need
adjust
100Hz
0.1Hz
1000Hz
0.8% of rdg+5 digits
1Hz
10kHz
10Hz
100kHz
100Hz
1000kHz
1kHz
10MHz 2.0% of rdg+10 digits
10kHz
Overload protection: 250V DC/250Vrms AC
