UNIKS C58 Digital Trms AC DC Clamp Meter User Manual

UNIKS C58 Digital Trms AC DC Clamp Meter

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Safety Information

WARNING
Special attention shall be paid when using the meter, improper use might cause an electric shock or damage the meter. During use, it is necessary to follow the usual safety regulations and fully comply with the safety measures specified in the user manual. To fully make use of the functions of the meter and ensure safe operation, please carefully read and follow the instructions in this manual.

The instrument complies with safety requirements on the electronic measuring instruments of EN-61010-1, EN61010-2-030, EN-61010-2-032, level II pollution, and over-voltage standard is CAT III 1000V CAT IV 600V. Please follow the safety operation guidelines to ensure safe use of the meter.

Preparations

When using the meter, users must comply with the standard safety rules:

• General protection against electric shock
• Prevent misuse of the meter
• After receiving the meter, check if it has been damaged during the delivery.
• After storage and shipment under poor conditions, inspect and confirm whether the meter is damaged.
• The pen must be in good condition. Before use, check the pen to see if any damage to the insulation and if the metal wire of the wire is exposed.

Symbol
Note (important security information, see the Instruction Manual).
Able to be used on dangerous electrified conductors.
Dual-insulation protection (Category II).
CAT III and CAT IV follow the over-voltage (Setup) Level III
IV of IEC-61010-1 standard and pollution degree 2 means the impulse withstands the voltage level of protection provided.
In line with the European Union (EU) Standard.
Grounded

Maintenance

Please do not attempt to open the bottom case to adjust or repair the meter. Such operation could only be performed by technicians who are fully aware of the meter and the risk of electric shock.

• Before opening the meter case or battery cover, the pen should be removed from the tested line.
• To avoid the electric shock that might be caused by erroneous readings, when the meter displays the “ ” symbol, the battery should be replaced immediately.
• Use a damp cloth and mild detergent to clean the meter, do not use abrasive cleaning agents or solvents.
• The power supply of the meter should be turned off when not in use and the range should be switched to the OFF position.
• If the meter is not used for a long time, the batteries should be removed to prevent damage to the meter.

Description

Part Name

1. Current clamp head: used for measuring current
2. Rotary switch
3. Function button
4. Display screen
5. Input socket
6. Function button
7. Trigger
8. The non-contact voltage detecting & inducing area

Instructions to rotary switch

LCD Display

Specification

The meter should specify one year as a cycle to recalibrate in the conditions of 18℃ ～ 28℃ and relative humidity less than 75%.

Overview

• Automatically select measurement function and range.
• Overload protection for the whole measurement range.
• Maximum allowable voltage between the measuring terminal and the ground: 1000V DC or 1000V AC.
• Work height: ＜2000m.
• Display: LCD
• Maximum display value: 6000 digits.
• Polar indication: automatically indicate ‘-’ means negative polarity
• Over range Indication :‘0L’ or ‘-0L’
• Sampling time: about 3 times/s
• Unit display: with function and quantity of electricity unit display.
• Automatic Power off time: 10 minutes.
• Power supply : 1.5V AAA battery ×3
• Battery low voltage indication: LCD symbol.
• Temperature coefficient: < 0.1×accuracy /℃
• Working temperature: 18℃ ～ 28℃
• Storage temperature : -10℃ ～ 50℃

Technical Index
When measuring current place the conductor at the center of the clamp head. If not, it can increase ±1.5% position deviation to the maximum.

DC Current

• Minimum input value of DC: 0.1A DC
• Maximum input value of DC: 600A DC

AC Current

• The minimum input value of AC: 0.1A（rms）
• Maximum input value of AC: 600A（rms）
• Frequency range：45Hz～1000Hz

AC Voltage

±（0.8% reading +5 digits）

60V| 0.01V
600V| 0.1V
1000V| 1V| ±（1.0% reading +5 digits）

• The minimum input value of AC: 0.1A（rms）
• Maximum input value of AC: 600A（rms）
• Frequency range：45Hz～1000Hz

AC Voltage

±（0.5% reading +5 digits）

60V| 0.01V
600V| 0.1V
1000V| 1V

DC Voltage

• Minimum input value of DC voltage：1mV
• Maximum input value of DC voltage：1000V

Frequency / Duty

By A Range(from current clamp)：

±（1.0% reading +5 digits）

1000Hz| 0.1Hz
10kHz| 0.001kHz

• Frequency input rang：10Hz～10kHz
• Input signal range：≥ 25A AC current（rms）

By V Range

±（1.0% reading +5 digits）

1000Hz| 0.1Hz
10kHz| 0.001kHz
100kHz| 0.01kHz
500kHz| 0.1kHz

• Frequency input range：10Hz～500kHz
• Input signal range：≥ 0.8V AC voltage（rms）

By Hz/%Range

±（0.5% reading +5 digits）

100Hz| 0.01Hz
1kHz| 1Hz
10kHz| 10Hz
100kHz| 100Hz
1MHz| 1kHz
10MHz| 10kHz
1%-99%| 0.1%| ±（3.0% reading +2 digits）

• Overload protection：1000V DC or AC（rms）
• Input signal range：≥ 0.8V AC voltage（rms）

Continuity

1W

| If resistance is lower than 30W, then the beeper in the meter may sound. The circuit voltage is about

1V.

• Overload protection：1000V DC or AC（rms）

Diode

3V

| ****

0.001V

| Displays approximate value of diode forward voltage Forward voltage. The circuit voltage is

about 3V.

• Overload protection：1000V DC or AC（rms）

Resistance

±(1.0% reading +3 digits)

6kW| 0.001kW
60kW| 0.01kW
600kW| 0.1kW
6MW| 0.001MW
60MW| 0.01MW| ±(2.0% reading +3 digits)

• Overload protection：1000V DC or AC（rms）

Capacitance

±（4.0% reading +5 digits）

100.0nF| 0.1nF
1.000uF| 1nF
10.00uF| 10nF
100.0uF| 100nF
1.000mF| 1uF
10.00mF| 10uF| ±（4.0% reading +5 digits）
100mF| 100uF| ±（5.0% reading +5 digits）

• Overload protection：1000V DC or AC（rms）

Temperature

-20～1000℃（

-4～1832℉）

| ****

1℃/2℉

| ±（1.0% reading +2 digits）

• Overload protection：1000V DC or AC（rms）

Operation Guide

Data Hold / Light
During the measuring process, if the readings are required to hold, slightly press the “ ” button， and the display value will be locked, press the “ ” button again to cancel the data hold. Press and hold for more than 2 seconds to turn on or off the lighting, and it will automatically turn off after about 1 minute.

LCD Backlight / Non-contact Voltage Detection  (NCV)
In the process of measurement, if the ambient light is too dim, causing reading difficulties, press the “ ” button to open the backlight and it will automatically turn off after about 1 minute. Press and hold for more than 2 seconds to enter the non-contact voltage detection mode and release to exit the mode.

Auto Power Off

1. If there is no operation within 10 minutes, the meter will enter a sleep state and automatically shut down to save power.
2. After the auto power-off press the “ ” button to wake the meter into working status.
3. When turning the meter on, hold the “ ” button at the same time then the auto power-off function will be canceled.

Manual Range

• Press the“ ”button to enter manual range mode,
• Press the button again to switch to the current range,
• Press and hold to exit manual range mode.

Relative Measurements
Press the “ ” button to enable or disable the relative measurement function. When relative measurement is enabled, the display value will be reset.

AC / DC Current Measurement

1. Turn the rotary switch to the current range, and press the “ ” button to select the DC Current, AC Current, and frequency measurement. Hold the trigger, open the clamp, and clamp one cable of the measured circuit and the meter will display the current value measured.
2. in the AC mode press and hold the “ ” button for more than 2 seconds to start the VFD measurement function.
3. press the “ ” button to turn on the inrush current measurement function while in AC current.

AC / DC voltage measurement

1. Turn the rotary switch to AC/DC voltage press the “ ” button to shift between AC and DC voltage measurement mode, and connect the probe to the measured signal.
2. In DC mode, the red probe is connected to the positive pole of the measured signal, and the black probe is connected to the negative pole of the measured signal.
3. When measuring AC voltage Press and hold the “ ” button for more than 2 seconds to start the VFD measurement function.

Low resistance voltage measurement
Turn the rotary switch to “ ” and press the “ ” button to switch between AC and DC voltage measurement modes to connect the probe to the measured signal.

Note
In low resistance measurement mode， the input impedance is 300kΩ， and the longest measurement time shall not be more than 1 minute.

Resistance / Continuity / Diode / Capacitance measurement
Turn the rotary switch to “ ” and press the “ ” button to select the resistance, continuity diode, and capacitance measurement function.

1. When resistance measurement is selected, the meter displays the measured resistance value.
2. When choosing the continuity function measurement, the meter will display the resistance value of the measured impedance. When the measured value is less than about 30Ω, the meter will buzz. When the measured resistance value is more than about 600Ω, it will display OL.
3. When selecting the diode function for measurement, the red probe is connected to the positive pole of the measured diode, and the black probe is connected to the negative pole of the measured diode and the meter will display the approximate value of forward voltage. When the probe is connected in reverse to measure the diode, the meter will display OL.
4. When capacitance measurement is selected, the meter displays the measured capacitance value.

Note
When measuring large capacitance, the capacitance should be fully discharged before measurement, otherwise it may introduce significant errors.

Frequency / Duty
Turn the rotary switch to “ ”and press “ ” button to switch to select the frequency or duty measurement.

Temperature measurement
Turn the rotary switch to “ ” and insert the thermocouple probe into the input socket, with the positive pole of the probe being connected to the red input terminal. The primary display panel will show the measured temperature slightly press the “ ” button to switch the unit for measuring temperature.

Non-contact Voltage Detection（NCV）
Press and hold the “ ” button for more than 2 seconds and the meter displays “—”. Place the NCV sensing area in the meter close to the measured cable, the cable condition can be judged by the buzzer sound and the LED indicator on the panel.

Note
The detection operation might be affected by various factors such as the socket design and insulation thickness types being different and so on. Even if there is no alarm indication, the voltage might still exist. Do not judge if there exists voltage or not in the cable relying on a non-contact voltage detector.

Maintenance

Replace Battery
WARNING
Before opening the battery cover of the meter, the test lead shall be removed from the measuring circuit first to prevent the risk of electric shock.

1. If the “ ” symbol appears, it means the batteries shall be replaced.
2. Screw the fastening screws of the meter battery cover and move away.
3. Replace the old batteries.
4. Install the battery cover as previously.
   Note: The polarity of the batteries cannot be reversed.

Replace Test Lead
WARNING
When replacing the pens, the new ones shall be of the same or at an equal level. The pens must be in good condition, and the level of the Test Lead is 1000V 10A.

Note
If the insulation layer of the test lead is damaged, such as the metal wire of the cable being exposed, then the pen must be replaced.

Waste disposal
Use a damp cloth and a small amount of detergent to clean the instrument shell. Do not use abrasive or chemical solvents.

The instrument should be recycled as an electronic waste.

Accessories

1. Test Leads Level：1000V 10A 1
2. Use Manual 1
3. Battery 1.5V AAA Battery 3
4. Cloth bag 1
5. K-Type Thermocouple Probe 1

ASSISTANCE

WARRANTY CONDITIONS

This instrument is warranted against defects in materials and workmanship, by the general terms and conditions. During the warranty period, defective parts can be replaced, but the manufacturer reserves the right to repair or replace the product. If the instrument is to be returned to the after-sales service or a dealer transportation is borne by the customer. The shipment must, however, be agreed upon. Attached to dispatch is an explanatory note about the reasons of the instrument must always be inserted. For shipping only use the original packaging. Any damage caused by the use of nonoriginal packing shall be charged to the customer. The manufacturer accepts no responsibility for damage caused to people or objects.

The warranty does not apply in the following cases:

• Repair and/or replacement of accessories and battery (not covered by warranty).
• Repairs were made necessary because of a misuse of the instrument or its use with no compatible devices.
• Repairs were made necessary due to improper packaging.
• Repairs made necessary due to work carried out by unauthorized personnel.
• Modification of the instrument without the explicit permission of the manufacturer.
• Use not provided for in the specifications of the instrument or the instruction manual.

The content of this manual may not be reproduced in any form without the permission of the manufacturer. Our products are patented and their trademarks. The manufacturer reserves the right to change specifications and prices if this is due to technological improvements.

ASSISTANCE
If the instrument does not operate properly, before contacting Customer Service, check the status of the battery and wear of the cables and replace them if necessary. If the instrument continues to manifest malfunctions check if the procedure of use of the same is by what is indicated in this manual.

If the instrument is to be returned to the after-sales service or a dealer transportation is borne by the customer. The shipment must, however, be agreed upon. Attached to dispatch is an explanatory note about the reasons of the instrument must always be inserted. For shipping only use the original packaging; any damage caused by the use of non-original packaging shall be charged to the customer.

http://www.uniks.it
info@uniks.it

Uniks Srl
Via Vittorio 57
48018 Faenza (RA), Italy
0546.623002
0546.623691

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