VEVOR EM4659 Digital Clamp Meter User Manual

VEVOR EM4659 Digital Clamp Meter

Technical Support and E-Warranty Certificate
For technical support and e-warranty certificate, visit www.vevor.com/support

TRMS CLAMP MULTIMETER USER MANUAL
The EM4659 model TRMS clamp multimeter is a measuring instrument designed according to IEC 61010 standards for electronic measuring instruments with a measurement category (CAT III 1000V) and Pollution Degree 2. This multimeter is a cost-effective tool that provides an estimate of savings compared to major top brands. However, please verify carefully when placing an order to ensure actual savings in comparison to top major brands.

WARRANTY
VEVOR reserves the right to interpret the user manual and the appearance of the product may vary from what is depicted in the manual. Please read all manual instructions carefully before operating. If you have product questions or need technical support, please contact CustomerService@vevor.com.

**SAFETY INFORMATION

**

Follow these guidelines to avoid electric shock or personal injury:

• Do not use the meter if it is damaged. Inspect the case and connectors for insulation before use.
• Inspect test leads for damaged insulation or exposed metal and check for continuity. Replace damaged test leads.
• Do not use the meter if it operates abnormally and have it serviced if in doubt.
• Do not operate the meter where explosive gas, vapor, or dust is present.
• Do not apply more than the rated voltage between terminals or between any terminal and earth ground.
• Verify the meter’s operation by measuring a known voltage before use.
• Use caution when working with voltage above 30V ac rms, 42V ac peak, or 60V dc.
• Keep fingers behind the finger guard on the probes when using them.
• Connect the common test lead before the live test lead and disconnect the live test lead first when disconnecting test leads.
• Remove the test leads from the meter and clamp from any conductor under test before opening the battery cover or case.
• Do not operate the meter with the battery cover or portions of the case removed or loosened.
• Replace batteries as soon as the low battery indicator appears to avoid false readings.
• Use caution in Relative mode or Data Hold mode or after zeroing the display in DC current function as hazardous voltage may be present.
• Use the meter only as specified in this manual to avoid electric shock or personal injury.

PRODUCT USAGE INSTRUCTIONS

1. Inspect the case and connectors for insulation before use.
2. Inspect test leads for damaged insulation or exposed metal and check for continuity. Replace damaged test leads.
3. Verify the meter’s operation by measuring a known voltage before use.
4. Connect the common test lead before the live test lead and disconnect the live test lead first when disconnecting test leads.
5. Remove the test leads from the meter and clamp from any conductor under test before opening the battery cover or case.
6. Do not operate the meter with the battery cover or portions of the case removed or loosened.
7. Replace batteries as soon as the low battery indicator appears to avoid false readings.
8. Use caution in Relative mode or Data Hold mode or after zeroing the display in DC current function as hazardous voltage may be present.
9. Use the meter only as specified in this manual to avoid electric shock or personal injury.

MODEL:EM4659
We continue to be committed to provide you tools with competitive price. “Save Half”, “Half Price” or any other similar expressions used by us only represents an estimate of savings you might benefit from buying certain tools with us compared to the major top brands and doses not necessarily mean to cover all categories of tools offered by us. You are kindly reminded to verify carefully when you are placing an order with us if you are actually saving half in comparison with the top major brands.

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel free to contact us: CustomerService@vevor.com

This is the original instruction, please read all manual instructions carefully before operating. VEVOR reserves a clear interpretation of our user manual. The appearance of the product shall be subject to the product you received. Please forgive us that we won’t inform you again if there are any technology or software updates on our product.

WARRANTY
This instrument is warranted to be free from defects in material and workmanship for a period of one year. Any instrument found defective within one year from the delivery date and returned to the factory with transportation charges prepaid, will be repaired,adjusted, or replaced at no charge to the original purchaser. This warranty does not cover expandable items such as battery. If the defect has been caused by a misuse or abnormal operating condition, the repair will be billed at a nominal cost.

INTRODUCTION
This instrument is a 3 5/6 digits true-RMS auto range digital clamp meter designed to measure DC and AC voltage, DC and AC current, resistance, continuity, diode,capacitance, frequency, duty cycle, and temperature. It features inrush current measurement, VFD voltage measurement, VFD current measurement, non-contact AC voltage detection, relative measurement, MIN MAX mode, data hold, bar graph, backlight, low battery indication, automatic power-off, illumination, full-range overload protection, etc. It is easy to operate and is a useful test tool

SAFETY INFORMATION
This meter has been designed according to IEC 61010 concerning electronic measuring instruments with a measurement category ( CAT III 1000V ) and Pollution Degree 2.

Warning
To avoid possible electric shock or personal injury, follow these guidelines:

• Do not use the meter if it is damaged. Before you use the meter, inspect the case. Pay particular attention to the insulation surrounding the connectors.
• Inspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity. Replace damaged test leads before you use the meter.
• Do not use the meter if it operates abnormally. Protection may be impaired. When in doubt, have the meter serviced.
• Do not operate the meter where explosive gas, vapor or dust is present.
• Do not apply more than the rated voltage, as marked on the meter, between terminals or between any terminal and earth ground.
• Before use, verify the meter’s operation by measuring a known voltage.
• When servicing the meter, use only specified replacement parts.
• Use caution when working with voltage above 30V ac rms, 42V ac peak, or 60V dc. Such voltages pose a shock hazard.
• When using the probes, keep your fingers behind the finger guard on the probes.
• When making connections, connect the common test lead before you connect the live test lead. When you disconnect test leads, disconnect the live test lead first.
• Remove the test leads from the meter and the clamp from any conductor under test before you open the battery cover or the case.
• Do not operate the meter with the battery cover or portions of the case removed or loosened.
• To avoid false readings, which could lead to possible electric shock or personal injury, replace the batteries as soon as the low battery indicator ( ) appears.
• When in Relative mode or Data Hold mode or after zeroing the display in DC current function, caution must be used because hazardous voltage may be present.
• Use the meter only as specified in this manual; otherwise the protection provided by the meter may be impaired.
• Adhere to local and national safety codes. Individual protective equipment must be used to prevent shock and arc blast injury where hazardous live conductors are exposed.
• To avoid electric shock and personal injury, do not touch any naked conductor with your hand or skin; and do not ground yourself while using this meter.
• Do not use the meter if the meter, a test lead or your hand is wet.
• Remaining endangerment: When an input terminal is connected to dangerous live potential, it is to be noted that this potential can occur at all other terminals!
• Do not use the VFD voltage measurement function or VFD current measurement function to verify the presence of hazardous voltages or currents. Voltages or currents greater than what is indicated may be present.
• CAT III – Measurement Category III is for measurements performed in the building installation. Examples are measurements on distribution boards, circuit breakers, wiring, including cables, bus-bars, junction boxes,switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment, for example, stationary motors with permanent connection to the fixed installation. Do not use the meter for measurements within Measurement Category IV.

Caution: To avoid possible damage to the meter or to the equipment under test, follow these guidelines:

• Disconnect circuit power and discharge all capacitors thoroughly before testing resistance, continuity, diode,capacitor, or temperature of an object.
• Use the proper terminals, function and range for your measurements.
• Before pressing a button to change function, disconnect the test leads and the clamp from any object under test.

Symbols

• Alternating Current
• Direct Current
• DC or AC
• Caution, risk of danger, refer to the operating manual before use.
• Caution, risk of electric shock.
• Earth ( ground ) Terminal
• Conforms to European Union directives
• The equipment is protected throughout by double insulation or reinforced insulation.
• Application around and removal from hazardous live conductors is permitted.

FRONT PANEL

Jaws
Used for clamping the conductor for current measurements. The conductor should be positioned at the center of the jaws during measurement.

Trigger
Used to open and close the jaws.

Button
With the meter on, press this “ ****” button to turn on oroff the backlight. The backlight will turn off automaticallyafter about 30 secs.

Function Selector Button
Used to switch between:

• DC current, AC current, VFD current and inrush current measurement functions.
• DC voltage and AC voltage measurement functions.
• Resistance, diode, continuity and capacitance test functions.

”MAXIMUN” Button
Used to enter or exit the MIN MAX mode.

Display
3 5/6 digits LCD.

” COM ” Terminal
Plug-in connector for the black test lead.

” INPUT ” Terminal
Plug-in connector for the red test lead.

Button
In dc current measurement function, press this “ ****” button to zero the display before measurement. Press again to undo the zeroing. In other measurement functions, this button is used to enter/exit Relative mode.

Rotary Switch
Used to select a desired function or range as well as to turn on or off the meter. To save battery charge, set this rotary switch to ” OFF ” position to turn off the meter when the meter is not in use.

” H ” Button
Briefly press this ” H ” button to enter or exit Data Holdmode. Press and hold down this button for about 2 secs toturn on or off the illumination LED

Tactile Barrier
Used to prevent finger from touching the conductor under test. Do not hold the meter anywhere beyond the tactile barrier.

RED LED
An indicator used in non-contact ac voltage detection and continuity test. Illumination LED NCV Sensor This NCV sensor is located at the mark “ ” near the top of the clamp. It is used in non-contact ac voltage detection.

Jaw Wear Indicator

Warning : To avoid injury, do not use the meter if the jaw wear indicator in the jaw opening is invisible.

UNDERSTANDING THE DISPLAY

Symbol Meanings:

Bar Graph
The bar graph on the top of the LCD is like the needle on an analog meter. It has an overload indicator ( ) on its right and a negative polarity indicator ( ) on its left. The number of lit segments indicates the measured value and is relative to the full-scale value of the selected range. In the 600V range, for example, the major divisions on the scale represent 0, 100, 200, 300, 400, 500 and 600V. An input of -100V lights the negativesign and the segments up to the ” 10 ” on the scale.

Note: In frequency, duty cycle, temperature and capacitance measurement functions and non-contact ac voltage detection function, the bar graph isturned off.

Units:

V

| Unit of voltage

V: Volt

---|---

A

| Unit of current

A: Ampere

Ω , kΩ ,

MΩ

| Unit of resistance

Ω: Ohm; kΩ : Kilohm; MΩ: Megohm 1MΩ = 103kΩ = 106Ω

nF, µF, mF

| Unit of capacitance

nF: Nanofarad; µF: Microfarad; mF: Millifarad 1mF = 103pF = 106 nF

Hz, kHz,MHz

| Unit of frequency

Hz: Hertz; kHz: Kilohertz; MHz: Megahertz 1MHz = 103 kHz = 106Hz

°C, °F

| Unit of temperature

°C: Degree Celsius;   °F: Degree Fahrenheit f ( °F ) = 32 + 1.8 x c ( °C )

%| Unit of duty cycle

%: Percent

GENERAL SPECIFICATION

• Display : 3 5/6 digits LCD
• Negative Polarity Indication : Negative sign “-” shown on the display automatically
• Sampling Rate : About 3 times/sec
• Jaw Opening Capability : About 50mm
• Max. Measurable Conductor for Current Measurements: About Ø38mm
• Low Battery Indication: ” ” shown on the display
• Battery: 1.5V battery, AAA or equivalent, 3 pieces
• Operating Environment:
  • Temperature : 0℃ ~ 40℃
• Relative Humidity: < 75%
• Temperature Coefficient: 0.2 x (specified accuracy)/0C (< 18℃or > 28℃)
• Storage Environment :
  • Temperature : -30℃ ~ 60℃
• Relative Humidity : < 85%
• IP Degree: IP20
• Operating Altitude : 0 to 2000 meters
• Size: 243mm × 87mm × 44mm
• Weight : About 382g ( including battery )

SPECIFICATION

Accuracy is specified for a period of one year after calibration and at 18°C to 28°C, with relative humidity < 75%. Except for the ranges specified specially, accuracy is specified from 5% of range to 100% of range. Accuracy specifications take the form of: ±([% of Reading] +[number of Least Significant Digits])

DC Voltage

Range| Resolution| Accuracy| Overrange

Indication

---|---|---|---
6V| 0.001V| ****

± (0.8% + 5)

| ****

” OL ” shown on the display

60V| 0.01V
600V| 0. 1V
1000V| 1V| ± (1.0% + 5)| ****

• Input Impedance: 10MΩ
• Max. Allowable Input Voltage: 1000V dc

Note:

1. 1000V range is specified from 20% of range to 100% of
2. When the input terminals are open, the display may show a reading other than This is normal and will not affect measurements. [1] If the voltage being measured is≥1000V, the built-in buzzer will sound. If the voltage is > 1010V, the display will show ” OL “.

AC Voltage

Range| Resolution| Accuracy| Overrange

Indication

---|---|---|---
6V| 0.001V| ± (0.8% + 5)| ****

” OL ” shown on the display

60V| 0.01V| ****

± (1.2% + 5)

600V| 0. 1V
750V| 1V| ****
VFD 750V| 1V| ± (2.5% + 15)

Frequency Range:

• 40Hz – 400Hz ( only for 6V range )
• 40Hz – 1kHz ( only for 60V, 600V and 750V ranges )

Note: Except for sine wave signal and triangular wave signal measurements, accuracy specifications for ac voltage measurements do not apply to measurements of signals whose frequencies are > 200Hz.

• Reading: True rms
• Max. Allowable Input Voltage: 750V ac

Note:

1. 750V range is specified from 20% of range to 100% of range.
2. When the input terminals are open, the display may show a reading other than This is normal and will not affect measurements. [1] If the voltage being measured is≥750V, the built-in buzzer will sound. If the voltage is > 760V, the display will show ” OL “.

DC Current

Range| Resolution| Accuracy| Overrange

Indication

---|---|---|---
60A| 0.01A| ± (3% + 10)| ****

” OL ” shown on the display

600A| 0. 1A| ****

± (3% + 6)

1000A| 1A

Note:

1. 60A and 600A ranges are specified from 10% of range to 100% of 1000A range is specified from 20% of range to 100% of range.
2. In 1000A range, if the current being measured is≥1000A, the built-in buzzer will sound, and if the current is > 1010A, the display will show ” OL “.

AC Current

VFD current: ± (5.0% + 15) Inrush current: not specified

600A| 0.1A
1000A| 1A

• Frequency Range: 50Hz ~ 60Hz
• Reading: True rms
• Overrange Indication: ” OL ” shown on the display
• Integration Time: 100ms ( only for inrush current measurements )

Note:

1. 60A and 600A ranges are specified from 10% of range to 100% of 1000A range is specified from 20% of range to 100% of range.
2. In 1000A range, if the current being measured is 1000A, the built-in buzzer will sound, and if the current is > 1010A, the display will show ” OL “.

Resistance

Range| Resolution| Accuracy| Overrange

Indication

---|---|---|---
600.0 Ω| 0.1Ω| ****

± (1.0% + 5)

| ****

” OL ” shown on the display

6.000 kΩ| 0.001kΩ
60.00 kΩ| 0.01kΩ
600.0 kΩ| 0.1kΩ
6.000 MΩ| 0.001MΩ| ± (1.5% + 5)
60.00 MΩ| 0.01MΩ| ± (3.0% + 10)

Frequency

± ( 1.0% + 5)

| ****

Autorange

99.99Hz| 0.01Hz
999.9Hz| 0.1Hz
9 999kHz| 0 001kHz
99.99kHz| 0.01kHz
999.9kHz| 0. 1kHz
9.999MHz| 0.001MHz| not specified

For frequency measurements with the rotary switch in the”H%” position, the amplitude of the input signal is required tobe in the range of 2V rms to 20V rms. When the meter is meas u ring ac voltage and frequency at thesame time with the rotary switch in the “ ” position, thefrequency measurement range is 10Hz to 1kHz and theinput voltage for frequency measurements is required to be

2V(the higher the frequency of input signal, the higher therequired input voltage ). For frequency measurements with the rotary switch in the “VFD  ” position, the measuring range is 10Hz to 1kHz,andthe input voltage is required to be > 1/3 of the present voltagerange(the higher the frequency of input signal, the higher therequired input voltage ). When the meter is measuring VFD current and the freguency ofthe current at the same time, the frequency measurement rangeis 10Hz to 1kHz, and the amplitude of the current for frequency measurement is required to be > 1/3 of the present currentrange(the higher the frequency of input signal, the higher therequired current to be tested ).

Duty Cycle

5% ~ 95%

| ****

0. 1%

| ****

± (2% + 7)

• Input Voltage: 2V rms – 20V rms
• Frequency Range: 4Hz ~ 1kHz

Capacitance

± (5.0% + 5)

| ****

Autorange

60.00nF| 0.01nF
600.0nF| 0. 1nF
6.000uF| 0.001uF
60.00uF| 0.01uF
600.0uF| 0.1uF
6.000mF| 0.001mF| ± (5.0% + 20)
60.00mF| 0.01mF| not specified

Note:

1. If the capacitance being measured is > 60mF, the display may show a reading, but the measurement result may be wrong or inaccurate
2. Use the Relative mode to subtract the residual capacitance of the meter and leads.

Temperature

Range| Reso-

lution

| Accuracy| Overrange

Indication

---|---|---|---
– 20°C ~ 0°C| ****

1°C

| ± (6.0% + 5°C)| ****

0°C ~ 400°C| ± ( 1.5% + 4°C)
400°C ~ 1000°C| ± ( 1.8% + 5°C)
– 4°F ~ 32°F| ****

1°F

| ± (6.0% + 9°F)
32°F ~ 752°F| ± (1.5% + 7°F)
752°F ~ 1832°F| ± (1.8% + 9°F)

Temperature Sensor: K Type thermocouple

Note:

1. Accuracy does not include error of the thermocouple
2. Accuracy specification assumes ambient temperature is stable to ± 1°C. For ambient temperature changes of ± 5°C, rated accuracy applies after 1 hour.
3. The meter’s operating temperature must be between 18°C and 28°C; otherwise measurement accuracy is not [1] The display will show ” OL ” if the temperature being measured is higher than 1010°C ( 1850°F ) or lower than – 30°C ( – 22°F ).

Continuity Test

50Ω.

The buzzer will not sound if the resistance is more than 100Ω.

The buzzer may or may not sound if the resistance is

between 50Ω and 100Ω.

Diode Test

displayed.

| Open Circuit Voltage: about 4V

OPERATING INSTRUCTION

Data Hold Mode
Briefly press the ” H ” button to enter the Data Hold mode. The present reading is held on the display, and the symbol ” H   ” appears on display as an indicator. To exit the Data Hold mode, briefly press this button again. The symbol ” H ” disappears.

Note:
In non-contact ac voltage detection function, the ” H  ” button is disabled.

Using Relative Mode
Relative mode is available in some functions. Selecting Relative mode causes the meter to store the present reading as a reference for subsequent measurements.

1. Set the meter in desired function or

2. Connect the meter to a desired circuit ( or object ) properly to get a reading, which is to be used as a reference for subsequent measurements.

3. Press the “ ” button The meter enters the Relative mode and stores the present reading as a reference for subsequent measurements. The symbol ” ” appears on the display as an indicator and the display reads zero.

4. In subsequent measurements, the display shows the difference between the reference and the new measurement.

5. To exit the Relative mode, briefly press this “ ” button The symbol ”     ” disappears.

Note:

1. When you use Relative mode, the actual value of the object under test must not exceed the full-scale value of the present range.
2. To avoid wrong measurement results, never enter Relative mode when Data Hold mode is active.
3. When the display shows ” OL “, it means over range.
4. Except for capacitance function, the meter enters manual ranging in the present range when you enter the Relative mode.
5. For frequency, duty cycle, diode, continuity, and inrush current measurement functions and non-contact ac voltage detection functions, Relative mode is not available.
6. In dc current measurement function, the ” ” button is used to zero the display.

MIN MAX Mode
The MIN MAX mode stores minimum and maximum input values. When the input goes below the stored minimum value or above the stored maximum value, the meter stores the new value.

To use the MIN MAX mode:

1. Make sure that the meter is in desired function or range.
2. Press the “ MAXIMUM ” button to enter MIN MAX mode. The display shows the maximum reading of all readings taken since entering this mode, and “ MAX ” is shown on display as an indicator.  Press this “ MAXIMUM ” button to toggle between the minimum reading ( “ MIN ” appears ) and the maximum reading ( “ MAX ” appears ).
3. To pause MIN MAX recording, briefly press the ” H ” button. The symbol ” ” is displayed. To resume MIN MAX recording, briefly press the “ H ” button again. The symbol ” H ” disappears.
4. To exit the MIN MAX mode and erase all the stored readings, press and hold down this “ MAXIMUM ” button for about 2 secs; the meter will return to normal operation.

Note:

1. In auto range mode, the meter enters manual ranging in the present range when you enter the MIN MAX mode.
2. When the display shows ” OL “, it means over range.
3. For frequency, duty cycle, capacitance, diode, continuity and inrush current measurement functions and non-contact ac voltage detection function, MIN MAX mode is not available. When the rotary switch is in the ” TEMP ” position, MIN MAX mode is not available.

Measuring AC or DC Voltage

1. Connect the black test lead to the ” COM ” terminal, and the red test leads to the ” INPUT ” terminal.
2. Set the rotary switch to the position.
3. If you want to measure DC voltage, press the Function Selector Button until the symbol “ ” is displayed. If you want to measure AC voltage, press the Function Selector Button until the symbol “ ” is displayed.
4. Connect the test leads across the source or circuit to be tested.
5. Read the voltage reading on the primary display. For DC voltage measurements, the polarity of the red test lead connection will be indicated as well, and the secondary display will show the ambient temperature. For AC voltage measurements, the secondary display will show the frequency of the ac voltage being measured.

Note: To avoid electric shock to you or damage to the meter, do not apply a voltage higher than 1000V dc or 750V ac between the terminals.

Measuring VFD Voltage

1. Connect the black test lead to the ” COM ” terminal, and the red test lead to the ” INPUT ” terminal.
2. Set the rotary switch to the ” ” position.
3. Connect the test leads across the source or circuit to be tested.
4. Read the voltage reading on the primary display. The secondary display shows the frequency of the voltage.

Note:

1. To avoid electric shock to you or damage to the meter, do not apply a voltage higher than 750V ac between the terminals.
2. In the VFD voltage measurement function, the low pass filter in the internal circuit of the meter is turned on, and all high frequency noises received from the circuit under test will be eliminated. To avoid possible electric shock or personal injury, never use the VFD voltage measurement function to verify the presence of hazardous voltages. Voltages greater than what is indicated may be present.

Measuring DC Current

1. Make sure that all the test leads have been removed from the meter. Then set the rotary switch to desired current range position position
2. Press the Function Selector Button until the symbol “ ” appears on display.
3. If the primary display shows a reading other than zero, press the “ ” button once to zero the primary display.
4. Press the trigger and clamp the jaws around one conductor to be tested. Make sure that the jaws are perfectly closed.Note:
   • Only one conductor should be clamped. Measuring two or more conductors at the same time will produce wrong reading.
   • The conductor should be positioned at the center of the jaws; otherwise there will be an additional measurement error, which is typically not more than about 2% of reading.
5. Read the DC current reading on the primary display. The secondary display shows the ambient temperature.

Note:

1. After you turn on the meter, wait about 5 to 10 minutes to allow the meter to warm up before you start current measurement. This is necessary for accurate measurements.
2. The reading on display also indicates the current’s direction: A positive reading indicates that the current direction is from the meter’s front to its back.
   • Tip: Current direction is the opposite of electron flow direction.
3. Don’t use the meter to measure a circuit’s current if the circuit contains a voltage > 1000V.

Measuring AC Current

1. Make sure that all the test leads have been removed from the meter. Then set the rotary switch to desired current range position position .

2. Press the Function Selector Button until the symbol “ ” is displayed and the symbol “ ” is absent from the display.

3. Press the trigger and clamp the jaws around one conductor to be tested. Make sure that the jaws are perfectly closed.
   Note:

   • Only one conductor should be clamped. Measuring two or more conductors at the same time will produce wrong reading.
   • The conductor should be positioned at the center of the jaws; otherwise there will be an additional measurement error, which is typically not more than about 2% of reading.

4. Read the ac current reading on the primary display. The secondary display shows the frequency of the ac current being measured

Note:

1. After you turn on the meter, wait about 5 to 10 minutes to allow the meter to warm up before you start current measurement. This is necessary for accurate measurements.
2. Don’t use the meter to measure a circuit’s current if the circuit contains a voltage > 1000V.

Measuring VFD Current

1. Make sure that all the test leads have been removed from the meter. Then set the rotary switch to desired current range position (  position ).

2. Press the Function Selector Button until both the symbols “ ” and ” ” are present on the meter screen.

3. Press the trigger and clamp the jaws around one conductor to be tested. Make sure that the jaws are perfectly closed.
   Note:

   • Only one conductor should be clamped. Measuring two or more conductors at the same time will produce wrong reading.
   • The conductor should be positioned at the center of the jaws; otherwise there will be an additional measurement error, which is typically not more than about 2% of reading.

4. Read the current reading on the primary display. The secondary display shows the frequency of the current being measured.

Note:

1. In the VFD current measurement function, the low pass filter in the internal circuit of the meter is turned on, and all high frequency noises received from the circuit under test will be eliminated. To avoid possible electric shock or personal injury, never use the VFD current measurement function to verify the presence of hazardous currents. Currents greater than what is indicated may be present.
2. After you turn on the meter, wait about 5 to 10 minutes to allow the meter to warm up before you start current measurement. This is necessary for accurate measurements.
3. Before measurement, press the ” button to zerothe display if the ” display does not read zero.
4. Don’t use the meter to measure a circuit’s current if the circuit contains a voltage > 1000V.

Measuring Inrush Current
Inrush current is surge current that occurs when an electrical device is first powered on. Once the device has reached its normal working condition, the current stabilizes.

To capture the inrush current reading:

1. Make sure that the system to be tested has been turned off.

2. Make sure that all the test leads have been removed from the meter. Then set the rotary switch to desired current range position ( ” position ).

3. Press the Function Selector Button until the symbol “ INRUSH ” appears on the screen. Now the meter is in the inrush current measurement function.

4. With the system under test powered down, place the source wire into the Meter jaws. Make sure that the jaws are perfectly closed.
   Note:

   • Only one wire should be clamped. Measuring two or more wires at the same time will produce wrong reading.
   • The wire to be tested should be positioned at the center of the jaws.

5. Power up the system under test. The value of inrush current is shown and held on the display

Measuring Resistance

1. Connect the black test lead to the ” COM ” terminal, and the red test leads to the ” INPUT ” terminal.
2. Set the rotary switch to the position.
3. Press the Function Selector Button until the screen shows a resistance measurement unit and the symbol” ” is absent from the display.
4. Connect the test leads across the resistor to be tested.
5. Wait until the reading on the primary display is stable, then read the resistance reading on the primary display. The secondary display shows the ambient temperature.

Note:

1. For measurements > 1MΩ , the meter may take a few seconds to stabilize reading. This is normal for high resistance measurements.
2. When the input terminals are open, the display will show ” OL “.
3. Before measurement, disconnect all power to the circuit to be tested and discharge all capacitors thoroughly.

Diode Test

1. Connect the black test lead to the ” COM ” terminal, and the red test lead to the ” INPUT ” terminal.
   • Note : The polarity of the red test lead is positive.
2. Set the rotary switch to the position.
3. Press the Function Selector Button until the symbol ” ” appears on the screen.
4. Connect the red test lead to the anode of the diode to be tested, and the black test leads to the cathode of the diode.
5. The primary display shows the approximate forward voltage drop of the diode.

Continuity Test

1. Connect the black test lead to the ” COM ” terminal, and the red test leads to the ” INPUT ” terminal.
2. Set the rotary switch to the position.
3. Press the Function Selector Button until the symbol ” ” appears on the screen.
4. Connect the test leads across the circuit to be tested.
5. The primary display shows the resistance value of the circuit under test. If the resistance is less than about 50Ω, the built-in buzzer will sound and the red LED will light.

Note: Before test, disconnect all power to the circuit to be tested and discharge all capacitors thoroughly.

Measuring Capacitance

1. Connect the black test lead to the ” COM ” terminal, and the red test lead to the ” INPUT ” terminal.
2. Set the rotary switch to the position.
3. Press the Function Selector Button until the display shows a capacitance measurement unit ( nF ).
4. If the primary display shows a reading other than zero, press the “ ” button to zero the primary display; the symbol ” ” will appear on the meter screen to indicate that the meter is in Relative mode.
5. • Note : Do not short the test leads together.
6. Connect the test leads across the capacitor to be tested.
7. Wait until the reading on the primary display is stable, then read the capacitance reading on the primary display. The secondary display shows the ambient temperature.

Note:

1. Before measurement, make sure that the capacitor to be tested has been discharged thoroughly.
2. For measurements > 10uF, it may take about 30 secs for the meter to complete measurement and stabilize reading.

Measuring Frequency and Duty Cycle

1. Connect the black test lead to the ” COM ” terminal, and the red test leads to the ” INPUT ” terminal.
2. Set the rotary switch to the ” HZ% ” position.
3. Connect the test leads to the source or circuit to be tested.
4. The primary display shows the frequency reading, and the secondary display shows the duty cycle of the square wave signal being measured.

Note:

1. For frequency measurements, range change is automatic, and measurement range is: 0 ~ 10MHz.
2. The voltage of input signal is required to be in the range of 2V rms to 20V rms. The higher the frequency of input signal, the higher the required input voltage.

Measuring Temperature

Note: To avoid possible damage to the meter or other equipment, remember that while the meter is rated for -20oC to +1000oC and -4oF to 1832oF, the K Type Thermocouple provided with the meter is rated to 250oC. For temperature out of that range, use a higher rated thermocouple. The K Type Thermocouple provided with the meter is a present, it is not professional and can only be used for non-critical measurements. For accurate measurements, use a professional thermocouple.

1. Set the rotary switch to the TEMP position. The secondary display shows the environment temperature.
2. Connect the negative ” – ” plug of the K Type thermocouple to the ” COM ” terminal, and the positive ” + ” plug of the K Type thermocouple to the ” INPUT ” terminal.
3. Connect the sensing end of the thermocouple to the object to be tested.
4. Wait a while until thermal equilibrium between the thermocouple probe and the object is reached, then read the readings on the screen. The primary display shows the celsius measured temperature of the object under test, and the secondary display shows the fahrenheit measured temperature of the object under test.

Non-Contact AC Voltage Detection

1. Set the rotary switch to the NCV position. The symbol ” NCV ” appears on the upper area of the screen. The primary display shows “ “, the secondary display shows the environment temperature. ( See Figure 3. )
2. Move the NCV sensor at the “ ” mark on the meter clamp close to the object to be tested. When the meter detects electric field generated byac voltage, the red LED on the meter will flash and the meter will indicate the intensity of the electric field being detected. The intensity of the electric field being detected is indicated by the number of the bar-graph segments shown at the vertical center of the display ( see Figure 4 ), the flashing rate of the red LED, and the beeping rate of the built-in buzzer. The higher the intensity of the electric field is detected, the larger the number of the bar-graph segments shown on display, the faster the flashing rate of the red LED and beeping rate of the buzzer.

Note:

1. Detection Range: 90V – 1000V Required Voltage Frequency: 50Hz/60Hz
2. The optimal detecting position of the meter is at the ” ” mark on the meter clamp.
3. If an ac voltage is not within the meter’s detecting capacity/distance, the meter can not detect this voltage.
4. The meter’s electric field intensity indication is affected by the magnitude of the ac voltage of the conductor under test, the distance between the meter and the conductor, the insulation of the conductor, etc.
5. Because of the meter’s detection limit, a line ( or conductor) under test may be electrically live even if the buzzer does not sound, the red LED does not flash and the display does not indicate the presence of electric field.
6. Before and after each use, verify the meter’s operation by detecting a known AC voltage. Do not use the meter if it operates abnormally or malfunctions.
7. To avoid electric shock, do not touch any conductor with your hand or skin.
8. To avoid interference, don’t perform non-contact ac voltage detection in an environment with strong electromagnetic field; otherwise the detection result may be wrong.

Automatic Power-Off
The meter will turn off automatically and go into Sleep mode if you have not operated the meter for about 15 minutes. To arouse the meter from Sleep, just press a button. To disable the automatic power-off feature, turn the rotary switch from ” OFF ” position to other switch settings while holding down the Function Selector Button; the symbol ” ” will be absent from the display.

MAINTENANCE

Warning Except for replacing batteries, never attempt to repair or service the meter. Store the meter in a dry place when not in use. Don’t store it in an environment with intense electromagnetic field.

General Maintenance
Periodically wipe the case with a damp cloth and a little mild detergent. Do not use abrasives or solvents. Dirt or moisture in the terminals can affect readings. Clean the terminals as follows:

1. Set the rotary switch to OFF position and remove all the test leads from the meter.
2. Shake out any dirt which may exist in the terminals.
3. Soak a new swab with alcohol.
4. Work the swab around in each terminal.

If the meter fails, check and replace ( as needed ) the batteries and/or review this manual to verify proper use of the meter.

Replacing the Batteries

Warning
To avoid false readings,which could lead to possible electric shock or personal injury,replace the batteries as soon as the low battery indicator ( ) appears. Turn off the meter,remove the test leads from the meter and the meter clamp from any conductor under test before opening the case or the battery cover.

When the low battery indicator ” ” appears on display, the batteries are not high enough and must be replaced immediately. To replace the batteries, remove the screw on the battery cover and remove the battery cover. Replace the exhausted batteries with new ones of the same type, make sure that the polarity connections are correct. Reinstall the battery cover and the screw.

ACCESSORIES

• Manual : 1 piece
• Test Lead : 1 pair

PRESENT

• K Type Thermocouple: 1 piece

NOTE

1. This manual is subject to change without notice.
2. Our company will not take the other responsibilities for any loss.
3. The contents of this manual can not be used as the reason to use the meter for any special application.

DISPOSAL OF THIS ARTICLE
Dear Customer, If you at some point intend to dispose of this article, then please keep in mind that many of its components consist of valuable materials, which can be recycled. Please do not discharge it in the garbage bin, but check with your local council for recycling facilities in your area.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

EUREP UK LTD UNIT 2264, 100 OCK STREET, ABINGDON OXFORDSHIRE ENGLAND OX14 5DH

EUREP GmbH Unterlettenweg 1a, 85051 Ingolstadt, Germany

• Importer : WAITCHX
• Address : 250 bis boulevard Saint-Germain 75007 Paris
• Importer : FREE MOOD LTD
• Address : 2 Holywell Lane, London, England, EC2A 3ET
• Manufacturer : Zhangzhou Eastern Intelligent Meter Co.,Ltd.
• Address : Eastern Industrial Park, Jintang Road, Jinfeng Economic Development Zone, Xiangcheng District, Zhangzhou, Fujian,China

Made In China

Technical Support and E-Warranty Certificate https://www.vevor.com/support

References

• Contact Us – Official VEVOR Support
• Contact Us – Official VEVOR Support

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