UNI-T UT210E PRO Mini Clamp Meters User Manual

UT210E PRO-Mini Clamp Meters
Operation Manual

Overview

UT210E PRO mini digital clamp meter features high reliability, safety, precision and compact design. Its resolution ratio is 1mA. The maximum range has a maximum range of 100A AC/DC; particularly in VFC starts mode. Entering this mode can accurately measure voltage and current which has VFC frequency conversion. A voltage or current response display is a true valid value. Whole range overload protection, reliable measurement accuracy and unique appearance design makes it an outstanding new generation functional electrician/electric power measurement instrument.

Open case inspection

Open the package and take out the instrument. Please check whether the following accessories are missing or damaged. If any item is missing or damaged, please contact your supplier immediately.

1. Instruction manual————–1 copy
2. 1.5V AAA battery ————–2 pieces
3. Probe assemblies—————1 pair

Safety precautions

This Meter complies with EN 61010-1,61010-2-032,61010-2-033, Pollution Degree 2, measurement category:
(CAT II 600V, CAT III 300V) and Double Insulation standards. CAT II: Applicable to test and measure circuits connected directly to utilization points (socket outlets and similar points) of the low-voltage MAINS installation.
CAT III: Applicable to test and measure circuits connected to the distribution part of the building’s low-voltage MAINS installation, before use and follow all safety instructions.

1. Use the clamp meter by following operation instructions, otherwise, the safety functions of the current clamp meter may fail to protect you.
2. Abide by national safety laws and regulations. When operating in a dangerous and live wire exposed environment, use personal protective equipment to prevent accidents such as electric shock and arc discharge.
3. Do not cross any position other than a protective barrier of the current clamp meter.
4. Before each use, check whether the current clamp meter housing or output cable insulation cracks or is damaged first, also check for poorly connected parts. Especially pay attention to the insulating layer around the clamping mouth.
5. Before removing the battery cover, please remove the clamp meter from all energized circuits and disconnect the lead wire.
6. Do not use clamp meter in circuit with a voltage higher than 600V this or frequency higher than 400Hz.
7. Measurement category class is CAT II 600V/CAT III 300V, pollution degree is 2. Do not use it out of scope.
8. Be cautious when working in an environment with exposed wire. Contact with wire may result in electric shock.
9. For voltage above 60V DC (direct current), 30V AC (AC effective value) or 42V AC (peak value), such voltage may cause electric shock.
10. Probe assemblies used for MAINS measurements CAT II 600V /CAT III 300V according to IEC 61010-031, If you want to replace the probe assemblies and they need the same level CAT II 600V /CAT III 300V or better level. Protection impairment if used in a manner not specified by the manufacturer.
11. Function switches shall be set at the correct position prior to measurement. It is forbidden to perform gear conversion in measurement to guard against damage to the meter.

Electrical symbol

| Low battery| | Warning| | Buzzing on-off
---|---|---|---|---|---
| ACV/DCV| | Diode| | Earthing
| ACA/DCA| | Double insulation
| Danger! High voltage
| Comply with European Union directives
| Application around and removal from UNINSULATED HAZARDOUS LIVE conductors is permitted

General standard

1. The maximum faulty operation protection voltage between the input terminal and earthing is 600V.
2. Maximum overload protection for clamp head terminal:100A.
3. Maximum display: 2000Counts, update 2-3 times per second. Over range displays “OL”. Diode: approx. 3.2V Range: automatic (exclusive of electricity gear) Polarity: automatic Work temperature: 0°C – 40C Relative humidity: Oct – 30 C:75%,30t -40″C:50% Storage temperature: -10C – 50’C
4. Electromagnetic compatibility: In 1V/m radio frequency field: overall frequency=designated precision+5% , radio frequency field above 1V/m has no designated index.
5. Work altitude: 0 – 2000m
6. Built-in battery: AAA 1.5Vx2 pieces
7. Low battery: LCD displays “ “.
8. Dimensions: approx. approx. (175x60x33.5)mm, maximum clamp head size is 17mm.
9. Weight: approx. 170g (including battery)

Product panel figure

1. Clamp head.
2. protective barrier.
3. Clamp head trigger: pull the trigger to open the clamp head.
4. NCV indicator: when the induced AC electric field intensity and induction distance satisfy the designated value, it will send out warning sounds and flashes.
5. Function selection button: rotate this button to switch to the corresponding functions indicated on the panel.
6. HOLD/backlight key: for measuring readings/long press 2s to turn on or turn off the backlight.
7. ZERO key: used for DCA zero, capacitance/voltage measurement relative value.
8. SELECT key: select function mode, such as ACV/HZ/DCV, resistance/on-off/diode/capacitance, ACA/DCA, etc. in current gear, long press this key for more than 2s to enter or exit the VFC function. At DCV/ACV/Frequency post, long press “SELECT” to switch to the VFC function for variable frequency/Frequency measurement, then long press”SELECT” to quit the VFC function.
9. LCD display screen: measurement function, symbol, and numerical value.
10. Positive terminal input jack: when measuring voltage, resistance/on-off/capacitance/diode, red meter pen inserts into this jack.
11. Input jack at COM terminal: when measuring voltage, resistance/on-off/capacitance/diode, a black meter pen inserts into this jack.
12. Indication mark for geometric center of the clamp head.

VII. LCD full view figure (figure 2)

Operation instructions

1. ACV/DCV/Frequency measurement

• To select ACV/DCV or Frequency
• Insert a red meter pen into the red jack (positive terminal), a black meter pen into the blackjack (COM terminal)
• Touch the test piece by a red and black meter pen, for example, the power socket (Figure 3).
• Read measurement value from LCD screen.

**** When measuring voltage, the maximum input voltage is 600V (AC/DC), do not exceed this limitation, otherwise, it may cause electric shock or damage to the meter.

2. Resistance/circuit on-off/diode/capacitance

• Insert red meter pen into the red jack (positive terminal), the black meter pen into the blackjack (COM terminal)
• Connect meter pen in parallel to test piece for measurement (Figure 4)
• Read measurement value from LCD screen.

**** When measuring resistance/on-off/capacitance/diode range, do not input voltage over DC 60V or AC 30V to avoid injury to humans.

3. AC/DC current measurement (Figure 5, Figure 6)

1. AC
   • Select AC range (2A 20A, 100A )
   • Open the clamp head, hook the electric wire (single wire), place the electric wire on the geometric center indicated by the clamp head, and make sure the left and right clamp heads are totally closed. There is no gap between the left and right clamp heads.
   • Read measurement data from LCD.

2. DC
   • Press the SELECT key to enter the DC range (2A=, 20A=, 100A=)
   • Press the ZERO key before measurement to make readings zero. If it does not return to zero after one press, then press it several times until the reading is zero. Note: as the product is highly sensitive, to ensure correct measurement data, the direction of the meter during measurement should be the same as when it is in zero as much as possible.
   • Open clamp head, hook the electric wire (single wire), place the electric wire on the geometric center indicated by the clamp head, and make sure the left and right clamp heads are totally closed. There is no gap between the left and right clamp heads.
   • Read measurement data from LCD. When the reading is positive, it means the current flows from the positive end indicated by the clamp head to the negative end. Negative reading is the opposite.
   **** When measuring current, unplug the test pen to avoid electric shock.
   

3. NCV noncontact electric field measurement (Figure 7) If you want to measure whether there is AC voltage or electromagnetic field, place the front end of the clamp head 8-15mm close to the test piece, the analog quantity of inductive AC voltage is about Critical voltage 100V, display “EF”, > critical voltage 100V, display “2, it has four “—-” levels based on voltage size with different buzzing at each level, with NCV light flashing to discriminate electric field intensity.
   **** When ranges switch NCV measurement, please unplug the test pen to avoid electric shock.
   

4. Other functions
   • Long press HOLD key for 2s to turn on or turn off LCD backlight function.
   • Automatic power-off: when measuring, if the rotary button has not been pulled out in 15 minutes, the instrument will automatically power off to save energy. In automatic power-off mode, turn the rotary button to OFF and restart the machine, or click any key to wake the instrument.
   • Turn off the automatic power-off function: press and hold the SELECT key, then power-on start, you will hear 5 buzzing which means the automatic power- off function is canceled. Turn off and restart the machine, and the automatic power-off function will be recovered.
   • The buzzer will send out 5 warnings 1 minute before automatic power off. A long buzz will be heard before power off. When the automatic power-off function is canceled, you will hear 5 continuous warnings every 15 minutes.
   • Buzzer: press any key or rotate the function switch, if such function key is valid, the buzzer will “beep” once (lasting approx. 0.25s). In gear, when the circuit-under-test is conductive (=10 S2 ), the buzzer makes a sound continuously. When measuring voltage or current outrange, the buzzer will “Beep” to warn outrange, function status is as below: a)When AC, DC voltage>600V, buzzer beeps b) 100A AC and DC gear: current >maximum range, buzzer beeps.
   • Low-voltage detects: when battery voltage is lower than 2.5V, battery under- voltage symbol 47 appears, measurement accuracy may be lower once this symbol shows, replace battery timely; if it is lower than 2.2V, only battery under- voltage symbol shows after starting up, it can’t work.
   • When battery supply voltage lowers to 2.6V, the LCD backlight will be in a weak or non-start state; but measurement functions still work.

Technical index

Accuracy: ±(a% reading + b word count), the warranty period is 1 year. Environment temperature:23°C±5°C(73.4T±9°F)relative humidity: C 75%
1.DC voltage measurement

Input resistance is about 10MΩ. (as input resistance is high, when 200mV range open circuit, there may be unstable digital display, but measurement can be stabilized once the measured source with internal resistance lower than 10MΩ is connected, but the impact of internal resistance of measured source on measurement reading should be considered)
Maximum input voltage: ±600V

2. AC voltage measurement

Input resistance: 10 MO in average.
Maximum input voltage: 600Vrms

• Show true virtual value. Frequency response: 45-400Hz
• Accuracy guarantee range: 5-100% range, the short circuit allows <10 residue readings.
• non-sinusoidal wave counts add error by crest factor:
  When crest factor is 1-2: Add 3%.
  When the crest factor is 2-2.5: Add 5%.
  When the crest factor is 2.5-3: Add 7%.

Resistance measurement

**** Range: measured value=measurement display value-meter pen short circuit value
Open-circuit voltage is about 1V
Overload protection: 600V-RMS
4. circuit on-off, diode measurement

sound;
Resistance value for circuit conduct: <100, buzzer beeps continuously.
| 1 mV| Open circuit voltage is 3.2V: normal voltage for silicon PN junction is 0.5-0.8V.

** Overload protection: 600V-RMS
5. Capacitance measurement**

** Overload protection: 600V-RMS <lpF measured capacitance, it is suggested to use ZERO measurement mode to ensure accuracy.
6. DCA measurement**

  Overload protection 100A
As an external electromagnetic field such as the earth exists, to ensure accuracy of measurement reading, press the ZERO key before measurement to make readings be zero. If it is not zero after one press, press it for several times until the reading is zero. The direction of meter during measurement should be the same as when it is in zero as much as possible.

7. ACA measurement

overload protection 100A

• Accuracy warranty coverage: 5-100% range, 2A open circuit allows <20 residue readings.
• Displays are true valid values. Frequency response: 50-60Hz.
• non-sinusoidal wave counts add error by crest factor: a) When crest factor is 1-2: Add 3%. b) When crest factor is 2-2.5: Add 5%. c)When crest factor is 2.5-3: Add 7%.

8. Frequency measurement

measuring sens tivity : 5Vrms5.input value5600Vrms
X. Maintenance and repair
Warning: before removing rear cover of the instrument, make sure the power supply is off; the meter pen leaves the input port and circuit under test.

1. General maintenance and repair

• For maintenance and repair, use a wet cloth and mild cleanser to clean the instrument cover, do not use a grinding agent or solvent. If the instrument is abnormal, stop use it and maintain it. If it is necessary to verify or maintain the instrument, maintain it by a qualified professional serviceman or designated maintenance department. 2. Replace the battery (see Figure 8)
• When LCD displays an under-voltage prompt, replace the built-in battery immediately otherwise it will affect measurement accuracy.
• Battery specification: AAA 1.5V x2cells

Operation procedure:

1. Place the power switch on “off position and remove the meter pen from the input jack.
2. Unscrew the screw fixed on the rear cover of the battery by a screwdriver, remove the battery rear cover and take out old battery as shown in the figure.
3. Replace 2 pcs of new batteries (specification AAA1.5V)
   This instruction manual is subject to change without further notice.

UNI-T
UNI-TREND TECHNOLOGY (CHINA) CO., LTD.
No6, Gong Ye Bei 1st Road, Songshan Lake National High-Tech Industrial Development Zone, Dongguan City, Guangdong Province, China
Tel: (86-769) 8572 3888http://www.uni-trend.com

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