ANENG 3 3/4 Auto Range Digital Dual Display AC/DC Clamp Multimeter User Manual

**ANENG 3 34 Auto Range Digital Dual Display ACDC Clamp Multimeter User Manual

**

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.
11. Change the battery when the symbol “ ” appears to avoid incorrect data.

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. Push the key to choose resistance, diode or continuity test. Press “SELECT” in＂ rang , choose AC voltage or DC voltage 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
8. T+V Ω Input Jack 、COM Input Jack、T- Input Jack
9. Flashlight

SPECIFICATIONS

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.

must insert the thermocouple in temperature test hole while examining temperature.

1. This meter in closure WRNM-010 type contact thermocouple limit temperature is 250 ℃ (300 ℃ shortly ) ;
2.  Please don’t change the thermocouple at will , otherwise we can’t guarantee to measure accuracy ; Please don’t importing the voltage in the temperature function.

ELECTRICAL SPECIFICATIONS

Accuracies are ±(% of reading +number in last digit) at 23±5℃,≤70%RH.

DC Voltage

Overload protection: 1000V DC/750Vrms AC
Impedance: 10MΩ，More than 100MΩ on 400mV scale

AC Voltage

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: 10MΩ

DC Current

Overload protection: 1000Arms within 60 seconds.

AC Current

Average sensing, calibrated to rms of sine wave Overload protection: 1000Arms within 60 seconds.

Resistance

Capacitance

Overload protection: 250V DC/250Vrms AC

Frequency

input voltage over range, need adjust
51.2Hz| 0.01Hz
512Hz| ****

0.8% of rdg+5 digits

| 0.1Hz
5.12kHz| 1Hz
51.2kHz| 10Hz
512kHz| 100Hz
5.12MHz| 2.0% of rdg+10 digits| 1kHz

Overload protection: 250V DC/250Vrms AC.
Duty cycle: 0.1%～99.9%

Temperature(NiCr-NiSi sensor)

Overload protection: 250V DC/250Vrms AC

Diode and Audible continuity test

0.4mA

Reversed DC voltage approx. 1.5V

| Built-in buzzer sounds if resistance is less than 90Ω| Open circuit voltage aprox. 0.5V

MEASURING INSTRUCTION

DC Voltage measurement

1. Connect the black test lead to “COM” socket and red test lead to the “VΩ” socket.
2.  Set the selector switch to desired “mV ” or “V ” position and connect the probes across the source or load under measurement.
3. Read the result from the LCD panel.

AC Voltage measurement

1. Connect the black test lead to “COM” socket and red test lead to the “VΩ” socket.
2. Set the selector switch to desired “V ～ ” position and connect the probes across the source or load under measurement.
3. Read the result from the LCD panel.

DC Current Measurement

1. Set the selector switch to desired “200 “or “1000A ” position.

2. Press the “REL” the display show “0”.
   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:

   • To change the direction of the measured DC current.
   • Open the JAWS several times.

3. Open the clamp by pressing the jaw-opening handle and insert the cable to be measured into the jaw.

4.  Close the clamp and get the reading from the LCD panel.

Note:
Before this measurement, disconnect the test lead with the meter for safety. Non unit sign display of DCA.

AC Current measurement

1. Set selector switch to desired “400/1000A～” position.
2. Open the clamp by pressing the jaw-opening handle and insert the cable ( one cable only) to be measured into the jaw.
3. Close the clamp and get the reading from the LCD panel.

Note:

1. Before this measurement, disconnect the test lead with the meter for safety.
2. In same occasion that the reading is hard to read, push the D.HOLD button and read the result later.

Resistance measurement

1. Connect the black test lead to “COM” socket and red test lead to the ” VΩ” socket.
2. Set the selector switch to desired “Ω” 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: Ensure that the circuit to be tested is “dead”.
   Max. input over-load: 250V rms＜10sec

Capacitance measurement

1. Connect the black test lead to “COM” socket and red test lead to the ” VΩ” socket.

2. Set the selector switch to desired “CAP” position.

3. Connect the probes to the capacitance to be tested.

4.  Read the result from the LCD panel.
   Caution:

   • Capacitors should be discharged before being tested.
   • 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 100uF range, it will take about 15 seconds).
   •  When testing small capacitance, to assure the measurement accuracy, first press “REL”, then go on measuring. Max.input over-load: 250V rms＜10sec

Frequency measurement

1. Connect the black test lead to “COM” socket and red test lead to the ” VΩ” 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. Max. input over-load: 250V rms＜10sec

Temperature measurement

1. Connect the black test lead of the sensor to “T-” socket and the red test lead to the “T+” 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

   • The temperature function shows the random number at ordinary times, must insert the thermocouple in temperature test hole while examining temperature.

   • This meter in closure WRNM-010 type contact thermocouple limit
     temperature is 250 ℃ (300 ℃ shortly ) ;

   •  Please don’t change the thermocouple at will , otherwise we can’t guarantee to measure accuracy ; Please don’t importing the voltage in the temperature function.

Diode test

1. Connect the black test lead to “COM” socket and red test lead to the ” VΩ” socket.
2. Set the selector switch to position.
3. Push “SELECT” to select diode test.
4. 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

Audible continuity test

1. Connect the black test lead to “COM” socket and red test lead to the “VΩ” socket.
2. Set the selector switch to 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. 90Ω.
   Caution: Ensure that the circuit to be tested is “dead”. Max .input over- load: 250V rms＜10sec

Relative measurement

Press “REL” , you can measure the relative value and “REL” appears on the display, the auto range mode be changed to manual range mode. Press again, return to the previous condition and “REL” disappears, but you can not go back to auto range mode. In” Hz” measurement, you can not measure the relative value.

CARE AND MAINTENANCE

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. Handle the multi meter gently and carefully. Dropping it can damage the circuit boards and cause and can accuse the multi meter to work improperly.

4.  When take current measurement, keep the cable at the center of the clamp
   will get more accurate test result.

5.  Keep the multi meter away from dust and dirt, which can cause premature
   wear of parts.

6.  Wipe the multi meter with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the multi meter.

7. Use only fresh batteries of the required size and type. Always remove oldor  weak batteries. They can leak chemicals that destroy electronic circuits.

8. Please take out the battery when not using for a long time.

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.

Above picture and content just for your reference. Please be subject to the actual products if anything different or updated. Please pardon for not informing in advance.

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

References

• Digital Measuring Instruments-Digital Multimeter-Infrared Thermometer-Zhuhai JiDa Huapu instrument Co.,Ltd.

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