HoldPeak 870L User manual

HOLDPEAK
870L
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 measuring
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
Accuracy
Resolution
400mV
0.5% of rdg+15digits
0.1mV
4V
1mV
40V
10mV
400V
100mV
1000V
1.2% of rdg+10 digits
1V
Overload protection: 1000V DC/750Vrms AC
Impedance: 10MΩ，More than100MΩon 400mV scale
2.2.2 AC Voltage
Range
Accuracy
Resolution
Frequency
4V
1.0% of rdg+15 digits
1mV
50～400Hz
40V
10mV
400V
100mV
750V
2.5% of rdg+15 digits
1V
50～100Hz
Average sensing, calibrated to rms of sine wave
Overload protection: 1000V DC/750Vrms AC
Impedance: 10MΩ，More than 100MΩon 400mV scale
2.2.3 AC Current
Range
Accuracy
Resolution
Frequency
40A
3.0% of rdg+20 digits
0.01A
50～60Hz
400A
2.5% of rdg+20 digits
0.1A
1000A
0～800
2.5% of rdg+25 digits
1A
800～1000
5.5% of rdg+25 digits
Average sensing, calibrated to rms of sine wave
Overload protection: 1000Arms within 60 seconds
2.2.4 Resistance
Range
Accuracy
Resolution
400Ω
1.8% of rdg+20 digits
0.1Ω
4kΩ
1.2% of rdg+20 digits
1Ω
40kΩ
10Ω
400kΩ
100Ω
4MΩ
1kΩ
40MΩ
2.0% of rdg+20 digits
10kΩ
Overload protection: 250V DC/250Vrms AC
2.2.5 Capacitance
Range
Accuracy
Resolution
40nF
3.5% of rdg+30 digits
10PF
400nF
2.5% of rdg+25 digits
100PF
4uμF
1nF
40μF
5.0% of rdg+10 digits
10nF
400μF
20.0% of rdg+20 digits
100nF
4000μF
1μF
Overload protection: 250V DC/220Vrms AC
2.2.6 Frequency
Range
Accuracy
Resolution
Sensitivity
10Hz
0.5% of rdg+10 digits
0.01Hz
Range of
input
voltage:1.5V
~10V, If input
voltage over
range, need
adjust
100Hz
0.1Hz
1000Hz
1Hz
10kHz
10Hz
100kHz
100Hz
1000kHz
1kHz
10MHz
10kHz
Overload protection: 250V DC/220Vrms AC
Duty cycle: 0.1%～99.9%
2.2.7 Temperature(NiCr-NiSi sensor)
Range
Accuracy
Resolution
℃/℉
-20～150℃
-4～302℉
±(3℃+2)
1℃/1℉
150～300℃
302～572℉
3.0% of rdg+2 digits
300～1000℃
572～1832℉
3.5% of rdg+5 digits
Overload protection: 36V DC/36Vrms AC

2.2.8 Diode and Audible continuity test
Range
Description
Test condition
Display read approx.
forward voltage of
diode
Forward DC current
approx. 0.4mA
Reversed DC voltage
approx. 2.7V
Built-in buzzer sounds if
resistance is less than
approx. 40Ω
Open circuit voltage
approx. 0.5V
Overload protection: 250V DC/250Vrms AC
3. MEASURING INSTRUCTION
3.1 DC/AV Voltage measurement
1) Connect the black test lead to "COM" socket and red test
lead to the "T＋VΩHz" socket.
2) Set the selector switch to desired "V" position .According to need
to press the "SELECT "button for AC/DC conversion
3) Read the result from the LCD panel.
3.2 AC Current measurement
1) Set the selector switch to desired"40A “、"400A “、"1000A "
position.
Note:
As the jaw core may remain some magnetic force after using for
a while. If the display can not reach "0" When Press the "REL”,
please take following process to correct it:
A. Open the JAWS several times.
ACA test not to need the step
2) Open the clamp by pressing the jaw-opening handle and insert
the cable to be measured into the jaw.
3) Close the clamp and get the reading from the LCD panel.
4) Push the D.HOLD button to lock display value, push itagain to exit.
5) Push the LIGHT button to light the back light.
Note:
Before this measurement, disconnect the test lead with the meter
for safety.
3.3Resistance measurement
1) Connect the black test lead to "COM" socket and red test
lead to the " T＋VΩHz " socket.
2) Set the selector switch to desired "ΩCAP " position, the
present function is resistance measurement, if it is other function,
push the “SELECT”to select resistance measurement.
3) Connect the probes across circuit to be tested.
4) Read the result from the LCD panel.
Caution:
①Ensure that the circuit to be tested is "dead". Max. input
over-load: 250V rms＜10sec;
②Don't allow in electricity loop of the online measurement,
measurement shall be first will loop before without electricity
3.5 Capacitance measurement
1) Connect the black test lead to "COM" socket and red test
lead to the " T＋VΩHz " socket.
2) Set the selector switch to desired "ΩCAP " position.
According to "the SELECT" button can switch to the functionality
needed to yourself
3) Connect the probes to the capacitance to be tested.
4) Read the result from the LCD panel.
Caution:
a) Capacitors should be discharged before being tested.
b) This device adopts charging mode to measure capacitance, so
when testing large capacitance, it will take longer time before the
final indication, and the larger capacitor, the longer the time (For
4000uF range, it will take about 30 seconds).
c) When testing small capacitance, to assure the measurement
accuracy, first press "REL", then go on measuring.
Max. input over-load: 250V rms＜10sec
3.6 Frequency/Duty measurement
1) Connect the black test lead to "COM" socket and red test
lead to the " T＋VΩHz " socket.
2) Set the selector switch to desired "Hz" position.
3) Connect the probes to the point of measurement and read the
frequency from the display.
4) Push "Hz/DUTY", you can measure the duty. Press again, go
back to frequency measurement.
Max.input over-load: 250V rms＜10sec
3.7 Diode test
1) Connect the black test lead to "COM" socket and red test
lead to the "T＋VΩHz" socket.
2) Set the selector switch to "ΩCAP " position. Push
"SELECT" to select diode test.
3) Connect the black and red test probe to the cathode (-) and
anode (+) ends of diode to be tested respectively, read the
forward voltage drop (junction) value from the display. If reverse
connected the probes to diode, display shows over-load.
Caution: Ensure that the circuit to be tested is "dead".
Max .input over-load: 250V rms＜10sec
3.8 Audible continuity test
1) Connect the black test lead to "COM" socket and red test
lead to the " T＋VΩHz " socket.
2) Set the selector switch to "ΩCAP " position.
3) Push "SELECT" to select audible continuity test.
4) Connect the probes across circuit to be tested, the beeper
sounds continuously if the resistance is less than approx. 40Ω.
Caution: Ensure that the circuit to be tested is "dead". Max .input
over-load: 250V rms＜10sec
3.9 Temperature measurement
1) Connect the black test lead of the sensor to "T-" socket
and the red test lead to the " T＋VΩHz " socket.
2) Set the selector switch to "℃/℉" position.
3) Put the sensor probe into the temperature field under
measurement.
4) Read the result from the LCD panel.
Max .input over-load: 250V rms＜10sec
A. The temperature function must insert the thermocouple in
temperature test hole while examining temperature.
B. According to "the SELECT" button in the ℃and ℉to
switch between
C. This meter inclosure WRNM-010 type contact thermocouple
limit temperature is 250 ℃(300 ℃shortly ) ;
D. Please don't change the thermocouple at will , otherwise we
can't guarantee to measure accuracy ;
E. Please don’t importing the voltage in the temperature
function.
4. CARE AND MAINTENANCE
4.1 CARING FOR YOUR MULTIMETER
Your Digital Multi meter is an example of superior design and
craftsmanship. The following suggestions will help you care for
the multi meter so you can enjoy it for years.
1) Keep the multi meter dry. If it gets wet, wipe it dry immediately.
Liquids can contain minerals that can corrode electronic circuits.
2) Use and store the multi meter only in normal temperature
environments. Temperature extremes can shorten the life of electronic
devices, damage batteries and distort or melt plastic parts.
3) Please use this product carefully. Any dropping or damage
will lead to the circuit boards break or product unable working
normally
4) When take current measurement, keep the cable at the
center of the clamp will get more accurate test result.
5) Keep the multimeter away from dust and dirt, which can
cause premature wear of parts.
6) Wipe the multimeter with a damp cloth occasionally to keep it
looking new. Do not use harsh chemicals, cleaning solvents, or
strong detergents to clean the multimeter.
7) Use only fresh batteries of the required size and type. Always
remove old or weak batteries. They can leak chemicals that
destroy electronic circuits.
8) Please take out the battery when not using for a long time.
4.2 9Volt battery replacement
1) Ensure the instrument is not connected to any external circuit.
Set the selector switch to "OFF" position and remove the test
leads from the terminals.
2) Open the cover of the battery cabinet by a screwdriver.
3) Replace the old batteries with the same type batteries.
4) Close the battery cabinet cover and fasten the screw.