UNIKS M5 Portable Digital Multimeter Instruction Manual

UNIKS M5 Portable Digital Multimeter

Statement

According to the international copyright laws, without permission and written consent, no content of this manual shall be copied in any form Including storage and retrieval or translation into languages of other countries or regions). Arry change in a future version of this manual will have no prior notice.

Caution

The caution label indicates a situation or operation which may damage the instrument or equipment. It requires to take caution when executing such operation, if any incorrect operation or violation of operation steps, it may cause damages to instrument or equipment. When such conditions are not met or not fully understood, do not proceed to execute any related operation specified by the “Caution” label.

Warning!

The “Warning” label indicates a situation or operation which may cause danger to users. It requires to take caution when executing such any incorrect operation or violation of operation steps, it may cause human injury or loss of life. When such conditions are not met or not fully understood, do not proceed to execute any related operation specified by the

Warming: label. Before w;fng the lnSlnlment.please read the manual carefully and pay attention to related safety warning information.

General

This instrument is a portable laptop-type digital multimeter. It is complete in function, stable in performance, high in precision and low in power consumption, with novel structure, safe and reliable, which is an idea measurement instrument for wide users.

Safety Notices

This instrument is designed and produced strictly according to safety standard IEC61010 and complies with dual insulation, over-voltage standard 300V CAT m, 600V CAT II, and safety standard of pollution level 2. Please use this instrument via strictly abiding by this manual, otherwise, the protection function provided by the instrument may be weakened or invalid.

Safety operation specification

warming In order to avoid possible electric: shock or personal injury, please abide by the following specification:

• Before using the instrument, please read the manual carefully, and use the instrument strictly according to the manual, otherwise, the protection ability provided by the instrument may be weakened or invalid.
• Check the shell before using the instrument. Check whether there’s any crack or damaged plastic part. Please check insulators near the input terminal.
• If the instrument cannot work normally or is damaged, do not use, and prohibit any use of the instrument.
• It is forbidden to touch any elec: terrified body with voltage over 30V AC RMS, 42V AC peak value or 60V DC.
• Please use this instrument according to specified measurement category, voltage, or current rated
• When the battery low indicator appears, please replace the battery in a timely, to avoid measurement
• Please comply with local and national safety codes. Wear personal protective equipment (such as recognized rubber gloves. mask and flame retardant clothing ), to avoid injuries caused by electric shock or electric arc due to exposed live conductors.
• Do not use the HOLD function to measure an unknown voltage. After HOLD is on, the display will not change when a different voltage is measured.
• Measure a known voltage, to confine the normal operation of the instrument.
• During measurement, it is required to use correct function gear and range gear.
• Do not use this instrument around explosive gas or steam or in a humid environment.
• Do not use damaged pens. Before using, please check whether the insulation layer af the pen is damaged, whether there s any exposed metal or sign of abrasion. Check the connectivity of the pen.
• During measurement, please connect zero line or ground line first. and then connect the live line; when disconnected, please disconnect the live line first, and then disconnect the zero line and the ground line.
• During measurement, please hold the back of the pen finger guard with your fingers.
• Before opening the back cover of the instrument, please disconnect the pens and the object being measured.
• Do not use the instrument in the case that the min. rated value of the individual component measurement category (CAl} of the instrument, pens or accessories is exceeded.

Electrical Symbols

Instrument Instructions

Measurement Methods

AC & DC voltage measurement

1. During measurement of DC voltage, turn the knob switch to V= gear; during measurement of AC voltage, tum the knob switch to V~ gear.
2. Parallelly connect the pens to the circuit or power supply to be measured, and measure the voltage.
3. Read measurement results from the display. When measuring DC voltage, the display will display the voltage polarity of the test point of the red pen.

Warning!

• Do not input a voltage higher than 600V, although it is possible to display a higher voltage, there’s a risk of damaging the instrument
• During measurement of high voltage, be careful to avoid electric shock.

Frequency/duty ratio measurement

• Rotate the knob switch to Hz% gear.
• Parallelly connect the pens to the circuit or power supply to be measured, and measure the frequency or duty ratio.
• Press ‘HZ/%” key to switch frequency/duty ratio display.
• Read measurement results from the display.

Warning!

• During measurement of high voltage, be careful, to avoid electric shock.
• After all measurements are completed, it is required to disconnect the pens from the circuit measured.

Capacitance measurement

1. Rotate the knob switch to the capacitance ·U gear.
2. Parallel connect the pens to the capacitance to be measured and measure the capacitance.
3. Read measurement results from the display.

Warning!

• In order to prevent possible electric shoclc, fire or human injury, before measurement, disconnect the power supply of the circuit to be measured, and discharge all high-voltage capacitors.
• After all measurements are completed, it is required to disconnect the pens from the circuit measured.

Resistance measurement

1. Rotate the knob switch to the resistance O+t-•11} gear. Press the “SEL’ key to shift to the resistance mea5Urement function.
2. Parallelly connect the pens to the circuit or resistance to be measured, and measure the resistance.
3. Read the mea5Urement result from the display.

Warning!

• In order to prevent possible electric shoe le, fire or human injury, before measurement,. disconnect the power supply of the circuit to be mea5Ured, and discharge all high-voltage capacitors.
• After all measurements are completed, it is required to disconnect the pens from the circuit measured.

Diode

• Rotate the knob switch to the C-M-◄ gear, and press the “SEL’ key to shift to the diode function.
• Connect the red pen to the positive pole of the diode to be mea5Ured, and connect the black pen to the negative pole of the diode to be measured, the reading on the display is an approximate value of forward voltage drop of the diode.

Warning!

• In order to prevent possible electric shock, fire or human injury, before measurement, disconnect the power supply of the circuit to be measured, and discharge all high-voltage capacitors.
• If the diode measured is open-circuited or with reversed polarity, the instrument will display overload.
• After all measurements are completed, it is required to disconnect the pens from the circuit measured.

On-off test

• Rotate the knob switch to the O+t-•11} gear, and press the “SEL’ key to shift to the on-off function.
• When the pens are parallelly connecte<l to both ends of the circuit or resistance to be measured, if the resistance between both ends of the circuit measured is below 500, the buzzer inside the instrument would sound, the LED light turns on, and the resistance at both ends of the circuit measured is shown on the display.

Warning!

• In order to prevent possible electric shock. fire or human injury, before measurement, disconnect the power supply of the circuit to be measured and discharge all high-voltage capacitors.
• After all measurements are completed, it is required to disconnect the pens from the circuit measured.

General Technical Indicators

• Use environmental conditions: IECJEN 61010-1300V CATW ,600V CATIJ,. pollution level 2 Altitude < 2000m.
• Working environment temperature and humidity: 0-40″C ( < 80% RH, < 10-C not considered).
• Storage environment temperature and humidity: -10-60″C (<70% RH, with the battery taken off).
• Temperature coefficient: 0.1 accuracy
• Measure the maximum allowable voltage between the measurement end and the ground: 600V DC or AC RMS.
• Sampling rate: About 3 times/second.
• Automatic shutdown: About 30 minutes.
• Display: Max. 3999
• Over range indication: Displays •oL” .
• Battery low voltage indication: When the battery voltage is lower than normal operating voltage, ·ElJ· will display on LCD.
• Input polarity indication: It will display•-• automatically.
• Power supply: Button battery CR2032 (3V)
• Dimension: 127x70x12.Smm
• Weight: About 100g

Accuracy Indicators

Accuracy:± (% reading + characters), warranty is one year. Basic conditions: Ambient temperature is 18°C to 28°C, and relative humidity is no greater than 80%.

DC voltage

Input impedance: about 10MO. Max. measurement voltage: 600V DC or AC RMS.

AC voltage

Input impedance: About l0MO. Max. measurement voltage: 600V DC or AC RMS. Frequency range: 40Hz – 400Hz.

Resistance

Range **** Resolution                    Accuracy

4000| 0.10|

:t(2.0% reading+ 5 characters)

4k0| 0.00lkO
40k0| 0.01 kO
400k0| 0.1 lcO
4MO| 0.OOlMO

Input protection: Max. 600V OC or AC RMS.

Frequency

Input protection: 600V DC or AC RMS; sensitivity: SOOmV RMS.

Capacitance

Input protection: 600V DC or AC RMS.

Diode

Diode test

| ****

1V

| ****

0.001V

| Test current              About lmA;     open circuit voltage: About 2. SV. Display an approximate value               of forwarding voltage drop of the

diode.

---|---|---|---

Input Protection: Max. 600V DC or AC RMS.

Duty Ratio

Input protection: Max. 600V OC or AC RMS. Sensitivity: S00mV RMS; frequency range: l0Hz-lOOkHz.

Connection/Disconnection

Instruction Maintenance

Basic maintenance information provided in this section includes instructions on the replacement of a protective tube and the replacement of battery. Unless otherwise you are an experienced maintenance person and possess related calibration, performance test and maintenance information, do not try to repair this instrument.

Warning!

In order to avoid possible electric shock, fire or human injury:

• When the shell is opened, do not conduct any measurement with the instrument
• Remove input signals before cleaning the instrument.
• It is required to use specified replacement parts. Ask authorized technicians to repair the instrument.

General maintenance
Use a wet cloth and a small amount of detergent to clean the instrument shell, and do no use any abrasive or chemical solvent.

Replace the protective tube and battery

Warning!

• In order to avoid electric shock or personal injury caused by error reading, please replace the battery timely when the ‘ Ell • symbol appears on the display.
• In order to guarantee safe operation and maintenance of this product, when it is not used for a long term, please take out the battery, to avoid any damage to the product due to battery leakage.
• Only fuses with specified amperage, fusing rated value, voltage rated value and fusing speed could be used.
• In order to avoid electric shock or personal injury, before opening the back cover and replacing the battery, it is required to s11ut down and check to guarantee that the pens have been disconnected from the measured circuit.

Please replace the battery or fuse according to the following
steps

1. Disconnect the power supply of the instrument
2. Disconnect the pens from the circuit measured.
3. Unfasten the bolts on the back cover with a screwdriver, and take down the back cover.
4. Takedown the old battery or the damaged protective tube, and replace with a new battery or new protective tube.
5. Fasten the bolts after assembling the back cover.

Uniks Srl Via Viori 57, 48018 Faenza (RA) Italy T. +39 0546 623002
https://www.uniks.it
[email protected]

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