UNI-T UT210A/B Mini Clamp Meters User Manual

UNI-T UT210A/B Mini Clamp Meters

Overview

UT210A/B mini digital clamp meter features high reliability, safety, precision and compact design. Its resolution ratio is 1 mA. Maximum range for UT210A and Bis 200A. UT210Adisplay is average value (effective sine wave value), UT210B display is true valid value. Whole range ove~oad 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.

• Instruction manual——–1 copy
• 2. 1.5V AAA battery ——2 pieces

Safety precautions

This Meter complies with EN 61010-1,61010-2-032,61010-2-033, Pollution Degree 2, measurement category: (CATII 600V, CAT Ill 300V) and Double Insulation standards.

Confonns to UL STD. 61010-1, 61010-2-032, 61010-2-033 Certified to
CSA STD. C22.2 NO. 61010-1, IEC STD 61010-2-032, 61010-2-033
CAT II: Applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar points) of the low-voltage MAINS installation.
CAT Ill: Applicable to test and measuring 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 safety functions of the current clamp meter may fail to protect you.
2. Abide by national safety laws and regulations. When operate in dangerous and live wire exposed environment, use personal protection equipment to prevent accidents such as electric shock and arc discharge.
3. Do not cross any position other than protective barrier of current clamp meter.
4. Before each use, check whether current clamp meter housing or output cable insulation cracks or damaged first, also check for poor connected parts. Especially pay attention to insulating layer around the clamping mouth.
5. Before removing the battery cover, please remove clamp meter from all energized circuit and disconnect lead wire.
6. Do not use clamp meter in circuit with voltage higher than 600V this or frequency higher than 400Hz.
7. Measurement category class is CAT II 600V/CAT Ill 300V, pollution degree is 2. Do not use ii out of scope.
8. Be cautious when work in 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 Ill 300Vaccording to IEC 61010-031, If you want to replace the probe assemblies and they need the same level CAT II 600V /CAT Ill 300V or better level. Protection impairment if used in a manner not specified by the manufacturer.

Electrical symbol

General standard

1. Maximum overload protection for clamp head terminal 200A.

2. Maximum display: 2000Counts, update 2-3 limes per second.
   Over range displays “OL”.
   Work temperature: 0″C-40-C
   Relative humidity: 0″C -30-C :75%,30-C -40-C :50%
   Storage temperature: -10-C-50-C

3. Electromagnetic compatibility
   In 1V/m radiofrequency field : overall frequency=designated precision+5% of range, radio frequency field above 1V/m has no designated index.

4. Work altitude: 0-2000m

5. Built-in battery: AAA 1.5V•2 pieces

6. Low battery: LCD displays

7. Dimensions: approx. (158•60•33.5)mm, maximum clamp head size is 16mm.

8. Weight: approx. 150g (including battery)

Product panel figure

1. Clamp head.
2. protective barrier.
3. Clamp head trigger: pull the trigger to open clamp head.
4. Function selection button: rotate this button to switch to corresponding functions indicated on the panel.
5. HOLD key: click this key to hold current reading.
6. MAXH key: click this key to maintain maximum value; click it once to maintain and click again to exit.
7. Backlight: long press for 2s to tum on or turn off backlight.
8. HOLD/backlighl key: for measuring readings/long press 2s to tum on or turn off backlight.
9. REL key: click this key to make current display value reference value, then display difference value between measuring value and reference value. Click this key again to exit this function.
10. MAX/MIN key: click this key to display maximum value, click it again to display maximum value, click ii one more time, ii will display (MAXMIN), it goes on and on. Long press this key for more than 2s to exit this function.
11. LCD display screen: measurement function, symbol and numerical value.
12. lndication mark for geometric center of the clamp head.

LCD full view figure (Figure 2)

Operation instructions

1. Current measurement (Figure 3)
   • Select range (2A-,20A-,200A-)
   • Open clamp head, hook electric wire (single wire), place electric wire on geometric center indicated by clamp head, 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.

NCV noncontact electric field measurement (for UT210B}

If you want to measure whether there is AC voltage or electromagnetic field, place the front end of clamp head 8-15mm close to the test piece, the analog quantity of Inductive AC voltage Is about .,;cr111ca1 voltage 100v, display “EF”, > critical voltage 100V, prompt by buzzing.

Other functions

• Long press HOLD key for 2a to tum on or tum off LCD bacldlght function.
• Automatic power-cf: 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-<>ff mode, tum rotary button to OFF and restart the machine, or wake up the Instrument by the following actions:
  1. For UT210A, click any key to wake the instrument.
  2. For UT21 OB, click REL key.
• Tum off automatic power-off function:
  • UT210A: press and hold HOLD key, press HOLD key to wake the instrument under the power-on start or automatic power-off state, the automatic power-cf function will be off.
  • UT210B: press and hold REL key, then power-on start, you will heard 5 buzzing which means the automatic power-cf function is canceled. Tum off and restart the machine, automatic power off the 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 aulDma1lc Powar-oll11mcllan., canceled, )’OU wl hmr5 continuous wamings In flVBry 15 minutes. (lJT210A haa no buzz wamlng).
• Low-voltage detect: when battery voltage is lower than 2./N, battery under-voltage symbol <Gil appears, measurement accuracy may be lower once this symbol shows, replace battery timely; if it is lower then 2.z./, only battery under-voltage symbol shows after starting up, it can’t work.
• When battery supply voltage Iowa~ to 2.6V, LCD backlight will be in the weak or non-start state; but measurement functions still work.

Technical index

ACA measurement

overload protection 200A.

• Accuracy warranty coverage: 10-100% range, 2A open circuit allows <20 residue readings.

• UT21 OA displays the average value (sine wave effective value),
  UT21 OB displays are true valid values. Frequency 11111ponsa: 50-60Hz.

• Non…, sinusoidal WflVB counts add terms by creal factor:
  a) When Creal faclDrls 1-2: Add 3%.
  b) When crest factor is 2-2.5: Add 5%.
  c) When Creal factor Is 2.5-3: Add 7%.

Maintenance and repair

Warning: before removing rear cover other Instrument, make sure power supply is off.

1. General maintenance and repair
2. For maintenance and repair, use a wet cloth and mild cleaner to clean the instrument cover, do not use a grinding agent or solvent.
3. If the Instrument ls abnormal, stop UAE It and maintain it.
4. If it is necessary 10 verify or maintain the instrument, maintain it by qualified professional serviceman or designated maintenance department
5. Replace the battery (SN Figure I)
6. When LCD display under-voltage ca prompt, replace bullt-I n battery immediately otherwise ~ will a1fect measurement accuracy.
7. Battery specification: AAA 1.5V x2cells

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