HoldPeak 870MR Operation Manual

HOLDPEAK
870MR
OPERATION MANUAL
This LCD Auto Range & Auto Power off Digital AC clamp multi
meter is a portable, 3 3/4-digit multi meter. It is ideally suited for
field, laboratory, shop and home applications.

1. SAFETY INFORMATION

The following safety information must be observed to in sure
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
Before making resistance measurements, diode or continuity test,
capacitance test or temperature test, ensure that the circuit under
test is de-energized.
4) Always ensure that the correct function and range is selected.
5) Extreme care should be taken when using the instrument to
conjunction with a current transformer connected to the terminals
if an open circuit occurs.
6) Ensure that the test leads and probes are in good condition
with no damage to the insulation.
7) Take care not to exceed the over-load limits as given in the
specifications.
8) 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.
9) Keep the fingers after the protection ring when
through the instrument lead.
10) In order to avoid incorrect data, when the battery is low, they
have to replace the battery

2. Panel Layout

1）Rotary Switch: use this switch to select functions and ranges
2）D.HOLD 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 HOLD and the " H" symbol disappear.
3）SELECT key：This tester turn on the "Ω" range. Push the key
to choose resistance, diode ,continuity or capacitance test. This
tester turn on the voltage or current range, Push "SELECT" to
choose AC or DC test. This tester turn on the "℃/℉" range press
this button, select ℃/℉measurement;
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. Press this button the screen will also shows that "▲"
symbol
5) Maximum / minimum measurement: Push this key ,the
instrument enter into the model, dynamic record in change input
signal to capture and record in the maximum signal (MAX) or
minimum value (MIN)
6） Hz/DUTY key： In Hz range, push the key, you can measure the
duty ,push again, go back to Hz measurement. In AC voltage
or AC current 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） "T+VΩHz" Input Jack 、COM Input Jack、 "T-"Input Jack

2.1 GENERAL SPECIFICATIONS

Display: 3 3/4 digit LCD with a max. reading of 3999.
Range control: Auto range
Polarity: Automatic negative polarity indication.
Zero adjustment: Automatic.
Over range indication: Only the "OL" or "-OL"display.
Low battery: The "BATT" is display when the battery voltage is
below 2.4V approx.
Auto Power Off: 15 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
600V.
Clamp opening size: 45mm.
Operating Environment: Temperature 0～104℉ (0～40℃),
humidity＜80%RH.
Storage Environment: Temperature -4～140℉(-20～60℃),
humidity＜80%RH.
Power supply: 9V Zinc-carbon battery.
Dimension: 225(H)×77(W)×45(D)mm.
Weight: Approx. 350g (including batteries).

2.2 ELECTRICAL SPECIFICATIONS

Accuracies are ±(% of reading +number in last digit)
at 23±5℃,≤75%RH.

2.2.1 DC Voltage

Range
40mv
400mV
4V
40V
400V
1000V
Overload protection: 1000V DC/750Vrms AC
Impedance: 10MΩ，More than100MΩ on 400mV scale

2.2.2 AC Voltage

Range
40mv
400mV
measuring
4V
40V
400V
750V
Average sensing, calibrated to rms of sine wave
Overload protection: 1000V DC/750Vrms AC
Impedance: 10MΩ，More than 100MΩ on 400mV scale

2.2.3 DC Current

Range
200A
0～800
1000A
800～1000
Overload protection: 1000Arms within 60 seconds

2.2.4 AC Current

Range
200A
0～800
1000A
800～1000
Average sensing, calibrated to rms of sine wave
Overload protection: 1000Arms within 60 seconds
AC Voltage(True RMS)
Range Resolution
40mV
400mV
4V
40V
400V
750V
input impedance : > 10MΩ Ohm ACV True RMS.
Overload protect : 1000V DCV or ACV peak value.

2.2.5 Resistance

Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Overload protection: 250V DC/250Vrms AC

2.2.6 Capacitance

Range
40nF
400nF
4uμF
40μF
400μF
4000μF
Overload protection: 250V DC/220Vrms AC
Accuracy
0.8% of rdg+15digits
1.2% of rdg+10 digits
Accuracy Resolution
2.0% of rdg+15 digits
1.0% of rdg+15 digits
2.5% of rdg+15 digits
Accuracy
3.0% of rdg+15 digits
3.5% of rdg+15 digits
6.5% of rdg+10 digits
Accuracy
3.0% of rdg+20 digits
3.5% of rdg+20 digits
6.5% of rdg+15 digits
50-500Hz 500-1KHz 1K-5KHz 5k-10KHz 10K-20KHz
±(1.5%of r
±(1.2%of
0.01mV
rdg+10dig
dg+10digit
0.1mV
its)
s)
1mV 50Hz-1KHz:±(3.0% of rdg +15 digits)
10mV
50Hz-400Hz:±(1.5% of rdg +10 digits)
100mV
1V 50Hz-400Hz:±(2.0% of rdg +10digits)
Accuracy
1.5% of rdg+20 digits
1.2% of rdg+15 digits
2.0% of rdg+20 digits
Accuracy
3.5% of rdg+30 digits
2.5% of rdg+20 digits
5.0% of rdg+10 digits
20.0% of rdg+20 digits
Resolution
0.01mv
0.1mV
1mV
10mV
100mV
1V
Frequency
0.01mv
0.1mV
1mV 50～400Hz
10mV
100mV
1V 50～100Hz
Resolution
0.1A
1A
Resolution Frequency
0.1A
50～60Hz
1A
Accuracy
±(2%of r ±(3.5%of ±(4.5%ofr
dg+10dig
rdg+10dig dg+10digit
its) its) s)
Resolution
0.1Ω
1Ω
10Ω
100Ω
1kΩ
10kΩ
Resolution
10PF
100PF
1nF
10nF
100nF
1μF