CM-2030 AC CLAMP METER 3.

TECHNICAL DATA Input impedance: 200mV range>40MΩ, the rest

To assure Meter accuracy, the environment is 10MΩ;
OPERATION MANUAL temperature should be (23±5) ℃, relative humidity Overload protection: 1000V AC/DC peak value.
should <75%.Accuracy: ± (a% × reading data + 1-4. Resistance (Ω)
1. INTRODUCTION digits), One year guarantee since production date.
Range Accuracy Resolution
This 3 1/2 digital multifunction clamp meter with
LCD display is driven by 1.5V X 2 battery. It
1-1. AC Current (ACA) 200Ω ±(0.8%+5) 0.1Ω
measures AC/DC voltage, AC current, Resistance, Range Accuracy Resolution 2kΩ 1Ω
Diode forward voltage drop and continuity. It also 200A 0.1A 20kΩ ±(0.8%+1) 10Ω
±(2.0%+5) 200kΩ 100Ω
has Data hold function, Clamp light and overload 1000A 1A
protection. Reliable and stable performance makes this 2MΩ 1kΩ
Frequency response: Sinusoidal and triangular
clamp meter an ideal tool for electrical measurements. 20MΩ 10kΩ
waves are 40Hz-1kHz; The others are 40Hz-200Hz; ±(1.2%+5)
Displaying: Sine wave RMS(average value response) 200MΩ 100kΩ
2. GENERAL SPECIFICATION Open circuit voltage: < 500mV;
Overload protection: 1200A(Max for 60 seconds).
1-1. Display method: 3 1/2 digit LCD display, Overload protection: 250V DC/AC peak value;
NOTE: The measured current conductor should
max “1999” counts; NOTE: In 200Ω range, short the test leads first
be placed in the center of the clamp head.
1-2. Polarity display: Automatically display; to measure the wire resistance and then
1-3. Over range indication: display “OL” ; 1-2. AC Voltage (ACV) subtracts it from the real measurement.
1-4. Measurement method: Micro Controller Unit Range Accuracy Resolution
/ Analog to Digital Converter(ADC+MCU) 1-5Diode and Continuity Test ( )
20V ±(1.0%+5) 10mV
1-5. Sampling rate: 2 or 3 times per second; 750V ±(1.2%+5) 1V Range Description Test Conditions
1-6. Working temperature:(0 40)℃,(32 104)℉; Forward DC current
Input impedance: 10MΩ;
1-7. Storage temperature:(-10 50)℃,(14 122)℉; Diode forward is approx0.8mA;
Overload protection: 1000V AC/DC peak value;
1-8. Power source: 2pcs ×1.5V battery voltage drop Reverse voltage is
Frequency response:
(“AAA” 7# battery); less than 2.2V.
20V range is 40 Hz ~2000Hz
1-9. Low battery indication: “ ” symbol displayed; When the resistance
750V range is 40 Hz ~1000Hz
1-10. Dimension: 123mm×270mm×35mm under test is less Open circuit
Displaying: True RMS response (calibrated by
(length×width× height) than 50Ω, buzzer s voltage: 2V
sinusoidal RMS).
1-11. Clamp opens: 52mm; ounds continuously.
1-12. Weight: About 280g (Including battery); 1-3. DC Voltage (DCV) Overload protection: 250V AC/DC peak value.
1-13. Accessories:Manual,Test leads, Leather Range Accuracy Resolution WARNING: Do not Apply any voltage in this
handbag, Gift box; 200mV 0.1mV range.
±(0.5%+5)
TEMP PROBE TP-04 IS NOT INCLUDED, 20V 10mV
CAN BE BOUGHT SEPERATELY 1000V ±(1.0%+5) 1V 1-6. Temperature℃/℉

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Range Accuracy Resolution 1-5. Rotary switch: Turn on/off the meter, and to ranges, test leads should be removed from
400℃ ±(1.0%+5) choose functions and ranges. the test points. If the LCD displays “OL”, it
-40℃~1000℃ 1℃ indicates that the range has been exceeded
≥400℃±(1.5%+15) 1-6.SELECT/REL/ :
750℉ ±(1.0%+5) and should be increased by one range;
0F~1832℉ ℉ 1) Function selection button by short press it.
≥750℉±(1.5%+15) 1-5.It is forbidden to measure voltage exceeding
Short press this button to select the desired
Sensor: K-type (Nickel-Chromium-Nickel-Silicon) the maximum value of the instrument, and it
measurement mode:Select or function
WARNING:Do not input any voltage at this range! is strictly forbidden to measure the voltage
under status; Select °C or °F at
with resistance or diode range so as to avoid
4. PANEL DESCRIPTION temperature °C/°F status.
damaging the meter.
2) It is REL function in voltage, current or
Front panel (picture 1) 1-6.Please operate the meter under conditions of
resistance range. Short press this button, the
1-1. Transformer jaw: used to temperature 0~40, and relative humidity
current display is immediately zero.
collect AC current and < 75%RH.
3) Clamp light control button, press for more
non-contact voltage 1-7.Turn OFF the meter if not used. Remove the
than 2 seconds, the clamp light will be turned
sensing detection area battery from the battery compartment if the
on, press for more than 2 seconds again, then
through the conductor ; meter will not be used for a long time.
it will be turned off.
1-2. Hand protection: Safely AC Current Measurement (ACA)
1-7.LCD: Shows the test results.
designed to protect users 1-1.Set the rotary switch to “ACA” range and
1-8.V/Ω input terminal: Positive input terminal
from touching the choose 200A/1000A range according to the
for red test lead.
dangerous parts. test value.
1-9.COM input terminal: Negative input terminal
1-3. JAW Lever : Press the 1-2.Press the lever to open the transformer jaw,
for black test lead.
lever to open the Clamp jaw. When the pressure and place a current-carrying conductor to be
1-10.Anti-fall wrist strap.
on the lever is released, the jaw will close. tested (not more than two conductors at the
5. OPERATION INSTRUCTION same time) in the center of the surrounding
1-4. HOLD/ Back LIGHT： Preparation and Cautions before Measurement. part of the clamp head, and close the clamp
HOLD/ 1-1.Make sure the polarity of the battery is correctly head to read the current data.
1) Data hold: Short press this button, the current connected and placed in the battery slot. AC Voltage Measurement (ACV)
measured value of the meter remains on the 1-2.Set the rotary switch to the right position 1-1.Make sure the input voltage is not higher
LCD display, the display shows “HOLD” before measurement. than AC 750V.
symbol, press again to exit the hold mode. 1-3.If test leads are used for measurement, insert 1-2.Set the rotary switch to “ACV” range. Select
2) Backlight: Press this key for more than 2 the red probe into V/Ω terminal and the black 20V or 750V;
seconds to turn on the LCD backlight, or turn probe into COM terminal. 1-3.Connect the test leads to the circuit under
off by press this key again for more than 2 1-4.If the range is unknown, turn the rotary switch test to get the results.
seconds. The LCD backlight will be turned to the highest range, then, change to proper DC Voltage Measurement (DCV)
off automatically after 30 seconds later. range according to the display. When changing 1-1.Make sure the input voltage is not higher
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than DC 1000V. meanwhile, Beeper will makes “tick-tick-tick” 1-3.Input Voltage at Temperature range is
1-2.Set the rotary switch to “DCV” range. Select of alarm reminder. PROHIBITED.
200mV/20V/1000V. Attention : Automatic shutdown
1-3.Connect the test leads to the circuit under 1-1. Even if there is no any indication, the voltage During the measurement process, the meter
test to get the results. might still be there. Do not rely on NCV will enter sleep state when the function button
Resistance Measurements (Ω) detector as the only way to judge whether a and the rotary switch will not be operated within
1-1.Set the rotary switch to “Ω” range,and choose Voltage is still existed on the Wire lead or not. 15 minutes. In the sleep state, pressing the
200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ/200 1-2. Voltage detecting may be affected by power function key will resume the working mode.
MΩ range, according to the test value; When socket design, type of insulation and its Press SELECT button in shutdown state and then
200Ω range input terminal short circuit and thickness and other factors. turn on the meter, the auto power off function is
not return to zero, press RE button and then 1-3. Interference sources at the external environment canceled. Shut down the meter and restart it ,
measure. such as flashing light, motor might cause a Auto-power off function will be resumed.
1-2.Connect the test leads to the resistor under wrong signal for a wrong judgment.
test to get the results. Temperature Measurement
6. MAINTENANCE
Diode and Continuity Test ( ) 1-1. Turn Switch button to “℃/℉”, press The meter is a precise instrument. Random
1-1.Turn Switch to “ ”,press SELECT to “SELECT/ ”key to choose ℃ or ℉ changes to the circuit are not allowed.
choose or measurement mode. measurement mode. Attention :
1-2.Connect RED Test Lead and the Positive 1-2. Put the cold ends(Free ends) of thermocouple 1-1.Do not input voltage higher than DC 1000V
electrode of Target Diode, and Connect /Sensor respectively into “VΩmA(+) and or AC 750V RMS.
Black Test Lead and the Negative electrode COM(-)”terminal, put the working end 1-2.Do not measure the voltage value when the
of Target Diode, LCD will shows similar (Temperature measuring end) of thermocouple/ range switch is at the Ω range.
value of forward Voltage drop for Diode. Sensor in the field of target temperature, then 1-3.Don't make any measurements when the battery
1-3.Select if Resistance is lower than (50+ LCD shows the Temperature value of target isn't installed or the back cover isn't fixed.
10)Ω the Buzzer will makes alarm reminder. temperature field, reading value is Centigrade 1-4.Before replacing battery, please remove the
Non-Contact Voltage Detecting degree.( Please pay attention to the polarity, test leads from the measuring point and turn
WARNING if it is opposite, display value will be drop off the power.
This Function might be disturbing by different when the target temperature is rising) 1-5Keep the meter away from water, dust and
external Sources, then might be incurred a wrong NOTE: shock.
alarm reminder, test result is just for reference 1-1. When input end is open-circuit,it will 1-6.Do not use the meter under high temperature,
when using this function. displays normal temperature. high humidity, combustible, explosive and
Turn Switch button to “NCV” position, the 1-2. Please DO NOT change temperature sensors strong magnetic environments.
Target Circuit to be placed on the top of Meter, randomly, otherwise the accuracy can not be 1-7.Clean the Case with a damp cloth and mild
Meter will shows strong and weak signals, guaranteed. detergent only. Do not use abrasives and
alcohol to clean the meter.

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1-8.To avoid leakage damage, please take out the

battery if the meter will not be used for a
long time.
1-9.When “ ” symbol is displayed, please replace
the battery according to the following steps:
Unscrew the screw on the battery door, and take
off the cover. Replace the old battery with a new
one (for long life, it's better to use alkaline battery).
Replace the battery door, and tighten the screw.
7. TROUBLE SHOOTING
If the meter does not work properly, please
check the meter as following steps:
(If the problems still Persists, please contact the
repairing center or the local dealer.)
Fault Solution
Turn on the power;
No reading on
Replace battery;
LCD
Release HOLD key.
signal
Replace battery
appears
Error Value Replace battery
The specifications are subject to changes without
prior notice;
The content of this manual is regarded as correct.
If users find out any mistakes or omissions,
please kindly contact the manufacturer;
The manufacturer will not be responsible for
accidents and damages caused by improper
operations;
The functions described in this Manual shall not
be considered as the reason for any special usages.

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