UNI-T UT219P AC Digital Power Clamp Meter User Manual

UT219P AC Digital Power Clamp Meter

P/N:110401111507X
UT219P
AC Digital Power Clamp Meter User Manual

EN
Preface
Thank you for purchasing this brand new product. In order to use this product safely and correctly, please read this manual thoroughly, especially the safety notes. After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to the device, for future reference.
Limited Warranty and Liability
Uni-Trend guarantees that the product is free from any defect in material and workmanship within one year from the purchase date. This warranty does not apply to damages caused by accident, negligence, misuse, modification, contamination or improper handling. The dealer shall not be entitled to give any other warranty on behalf of Uni-Trend. If you need warranty service within the warranty period, please contact your seller directly. Uni-Trend will not be responsible for any special, indirect, incidental or subsequent damage or loss caused by using this device.
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UT219P User Manual
Contents
I. Overview ————————————————————————————- 4 II. Features ———————————————————————————— 4 III. Accessories —————————————————————————— 5 IV. Safety Information ——————————————————————— 5 V. Electrical Symbols ———————————————————————- 6 VI. General Specifications —————————————————————- 6 VII. External Structure and Test Leads ————————————————- 7 VIII. LCD Display ——————————————————————————- 8 IX. Rotary Switch —————————————————————————- 9 X. Button Descriptions ——————————————————————— 9 XI. Operating Instructions —————————————————————– 9 XII. Technical Specifications ———————————————————— 27 XIII. Bluetooth Software —————————————————————— 31 XIV. Maintenance ————————————————————————– 32
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UT219P User Manual
I. Overview
UT219P is a digital power clamp with fundamental frequency up to 1 kHz. This clamp meter can be used to measure AC voltage, AC current, active power, apparent power, reactive power, power factor, phase angle, power quality, frequency, phase sequence, total harmonic distortion, harmonic component, etc. It has different measurement modes including single phase, threephase three- wire, and three-phase four-wire. Designed with Bluetooth function, measurement data can be monitored and recorded via mobile phone and tablet, and professional report can be generated. Featuring easy operation, stable performance, accurate measurement and more, UT219P can be applied in multiple fields such as: 1) Measure power quality of UPS to evaluate if operation is normal. 2) Measure power factor of power system to analyze capacitive or inductive load. 3) Measure harmonic of power grid of power system, to find out harmonic issue that may
damage the load of nonlinear equipment of power grid. 4) Troubleshoot 400Hz AC power supply system of aviation and 25Hz AC power supply system
of railway. 5) Test and maintain high-power motor, centrifugal fan, centrifugal water pump, wind power
generation, solar power generation. 6) Test new energy vehicles and hybrid electric vehicles, evaluate motor efficiency, invertor
efficiency and energy consumption of driving.
II. Features

1. Completely sealed (Ip54). 2) Wide jaw opening (80mm) enables measuring current of thick conductor (Max. 75mm). 3) Category rating: CAT IV 600V AC, CAT III 1000V AC. 4) 1000V AC RMS voltage measurement, 15Hz~1000Hz frequency response range. 5) 1000A AC RMS current measurement, 15Hz~1000Hz frequency response range. 6) Ability to measure and display RMS and peak simultaneously.
2. Multiple wire connecting modes including single-phase two-wire, single- phase three-phase,
   balanced three-phase wire-wire, unbalanced three-phase three-wire, balanced three-phase four-wire, unbalanced three-phase four-wire, and more. Simple guidelines for wire connecting places can be shown on the upper and lower displays when performing three-phase connection. 8) Wide fundamental frequency range for power measurement: 15Hz~1000Hz. 9) Ability to analyze 40th voltage and current harmonics. THD %f (total harmonic to fundamental wave distortion), THD %r (total harmonic to full wave) and RMS of harmonic component of each order. 10) Identify if electricity theft occurs by comparing measurement of single-phase active electric
   energy of electric energy meter. 11) Detect phase sequence of motor to prevent inversed phase sequence of power supply
   from causing motor to rotate inversely. 12) Via Bluetooth APP, the product can record measurement data and generate graph, table,
   and report. The product has multiple functions including real-time monitoring for rapid troubleshooting, data recording and processing, integrated management, and more, so as to achieve integrated monitoring, maintenance and management.
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UT219P User Manual
III. Accessories
Check the accessories in the package, if any of them is missing or damaged, please contact your supplier immediately. User manual ————————————————– 1 pc Test leads (red, black) ————————————- 1 pair Alligator clips (red, black) ——————————— 1 pair 1.5V AAA battery ——————————————– 3 pcs Tool box ——————————————————- 1 pc Brown box —————————————————- 1 pc AAA Ni-MH rechargeable battery ———————– 3 pcs (optional) Test probes (red, black) ———————————– 1 pair
IV. Safety Information
Note the “Warning labels and sentences”. A Warning identifies conditions and procedures that are dangerous to the user and that can cause damage to the Product or the equipment under test. The product is designed in accordance with IEC/EN61010-1, 61010-2-032, Electromagnetic Radiation EN61326-1 Standard, and conforms to Double Insulation, Overvoltage CAT III 1000V, CAT IV 600V and pollution degree 2. Failure to follow operating instructions can impair the protection provided by the product. 1. Check the product and test leads before use. Pay attention to any damage or abnormal
situation. Please stop use if test lead and casing insulation are damaged, or the LCD displays nothing, or the product cannot work normally. 2. Before each use verify tester operation by measuring a known voltage. 3. It is forbidden to use without rear cover or battery cover set in place. Otherwise it may cause electric shock. 4. Keep fingers behind the finger guard and never make contact with exposed wire, connecto,r input terminal not in use, or circuit being measured during measurement. 5. Do not exert AC voltage over 1000V between terminal and grounding to prevent electric shock and product damage. 6. Use caution when working with voltages over 60V DC or 30Vrms AC. 7. Never use the tester on a circuit with frequency that exceed the rating of this tester. 8. To meet the requirements of safety standard, please use the product together with equipped test leads and alligator clips. If test leads or alligator clips are damaged, replace a new one which should meet IEC61010-031 standard, rated follow parameters of the product or better. 9. When the symbol ” ” appears on the LCD, please replace the battery in time to ensure measurement accuracy. Remove the battery if the product is not used for a long time. 10. Do not alter the internal wiring to avoid product damage and safety hazard. 11. Do not keep or use the product in environments with high temperature, high humidity, strong
electromagnetic field, or inflammable and explosive environments. 12. Please wipe the casing with soft cloth and neutral cleaning agent, do not use abrasives
or solvents, so as to avoid casing corrosion, product damage, and safety hazard.
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UT219P User Manual

V. Electrical Symbols

System Description

Application around and removal from UNINSULATED HAZARDOUS LIVE conductors is permitted

AC (Alternating Current)

Bluetooth communication

Double insulated Grounding

Warning

Conform to European Union standards

Conform to UL STD 61010-1, 61010-2-032 Certified to CSA STD C22.2 NO. 61010-1, 61010-2-032

CAT III

UKCA certification mark
Applicable to test and measure the circuit connected with the power distribution part of building’s low-voltage MAINS installation.

CAT IV

Applicable to test and measure the circuit connected with the power supply of building’s low-voltage MAINS installation.

The product conforms to the identification requirement of WEEE directive. Do not place equipment and its accessories in the trash.

VI. General Specifications

1. Overload protection voltage between input terminal and grounding: 1000V 2) Ingress protection: Ip54 3) Polarity indication: Auto 4) Overload indication: “OL” or “-OL” 5) Error caused by testing area: An additional error of ± 1.0% of reading can occur when the
   source to be measured is not placed at the center of the clamp jaws for current measurement. 6) Drop proof: 1 m 7) Maximum jaw opening: 80mm in diameter 8) Maximum diameter of measured conductor: 75 mm 9) Power supply:3 X 1.5V AAA batteries (type: LR03) or 3 X 1.2V rechargeable Ni-MH batteries 10) Auto power off: The product powers off automatically after 15 minutes of inactivity. 11) Dimensions: 295 mm118mm50mm 12) Weight: About 630g (including battery) 13) Operating altitude: 2000 m 14) Intended use: Indoor user 15) Operating temperature and humidity: 0°C~30°C (80%RH); 30°C~40°C (75%RH);
   40°C~50°C (45%RH) 16) Storage temperature and humidity: -20°C~+60°C (80%RH)
2. EMC: Under radio frequency field of 1V/m, overall accuracy = specified accuracy + 5%
   of range. Under radio frequency field over 1V/m, there is no specified specification.
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VII. External Structure and Test Leads (Fig. 1)

UT219P User Manual

1

2

3

4

5

6

8

5 9

7

10

11

12

CAT1000V CAT600V
CAT1000V CAT600V

Fig. 1

1. Clamp jaw: A sensing device, used to measure AC current, can convert current to voltage. 2. Finger guard: Designed to protect user’s finger from touching danger zone. 3. Trigger: Press to open jaws; release to close. 4. Rotary switch: Select function positon 5. Functional buttons: Select basic functions 6. LCD display: Display measurement data and function symbols 7. Input terminals: Input voltage signal 8. Battery cover 9. Screws 10. Alligator clips: Conform to CAT III 1000V, CAT IV 600V 11. Test leads: Conform to CAT III 1000V, CAT IV 600V 12. Test probes
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UT219P User Manual
VIII. LCD Display (Fig. 2)

Fig. 2

1. : Bluetooth communication symbol

2. RANGE: MANUAL: Manual current measurement mode

3. PF: Power factor

4. 3P3W: 3-phase 3-wire measurement mode

5. 3P4W: 3-phase 4-wire measurement mode

6. UNBALANCED: Unbalanced measurement mode

7. MAX: Maximum value measurement

8. MIN: Minimum value measurement

9. AVG: Average value measurement

10. THD %f: Total harmonic to fundamental distortion

11. THD %r: Total harmonic to full wave distortion

12. : Flash symbol to indicate pressing HOLD button

13. HOLD: Data hold, or enter next operation with finger symbol

14. MEASURED: Actual measured accumulative electric energy

15. EXPECTED: Theoretical accumulative electric energy

16. : Dangerous voltage

17. h : m: hour/minute

18. m : s: minute/second

19. cyc: Cyclic accumulative electric energy

20. PEAK: Peak measurement

21. V/A: Unit of voltage/current

22. Hz: Unit of frequency

23. kW: Unit of active power

24. kVA: Unit of apparent power

25. kVAr: Unit of reactive power

26. Wh, kWh: Unit of electric energy

27. : Auto power off

28. Top right corner:

Auxiliary display 1

29. Bottom left corner:

A uxiliary display 2

30. Bottom right corner:

Auxiliary display 3

: Battery voltage

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UT219P User Manual

IX. Rotary Switch (Fig. 3)
Wh

Phase Detect

HARM
3P
W W

A OFF

Fig. 3

Position OFF A/V W/VA/var 3PW HARM Wh/Setting Phase Detect

Description Turn off the internal power supply of the product AC current/voltage measurement Single-phase power measurement Three-phase power measurement Harmonic measurement Electric energy/electric energy accumulation mode setting Phase sequence detection

X. Button Descriptions
1. SELECT
(1) A~/V~ position: Short press this button to cyclically select ACA ACV on main display,
the default position is ACA. (2) W/VA/var position: Short press this button to cyclically select active power apparent
power reactive power power factor phase angel on main display, the default position is active power. (3) 3PW position: Under 3-phase 3-wire (3P3W, balanced) or 3-phase 4-wire (3P4W) mode, short press this button to cyclically select active power apparent power reactive power power factor phase angel on main display, the default position is active power. Under 3-phase 3-wire (3P3W) mode, short press this button to cyclically select phase-combined active power P1 active power P2 active power on main display, the default display is phase-combined active power. Under 3-phase 4-wire (3P4W) mode, short press this button to cyclically select phase-combined active power phase-combined apparent power phase-combined reactive power phase-combined phase angle P1 active power P2 active power PC active power on main display, the default display is phase-combined active power. (4) HARM position: Short press this button to cyclically select voltage harmonic analysis current harmonic analysis, the default position is current harmonic analysis. (5) Wh/Setting position: Short press this button to cyclically select single- phases electric energy electric energy accumulation mode setting, the default position is single-phase electric energy. (6) Long press this button to turn on/off Bluetooth.
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UT219P User Manual
2. MAX/MIN
Short press this button to cyclically select real-time value maximum value minimum value average value on the main display, and to record the time of capturing maximum
and minimum values. Long press this button to exit maximum/minimum value measurement. The measurement is valid only under such modes including AC voltage, AC current, singlephase power, balanced three-phase power, etc.
3. RANGE When this button is short pressed in auto range mode, the product enters manual mode, the LCD shows “RANGE: MANUAL”, and the display is in current range. Press this button continuously to select AC current ranges cyclically. When this button is long pressed, the product exits manual range and enters auto range, “RANGE: MANUAL” does not appear on the LCD.
4. HOLD/ Under measurement interface (except unbalanced three phase, electric energy and phase sequence), short press this button to enter or exit data hold. When entering data hold mode, the LCD shows “HOLD”; when exiting data hold mode, the LCD does not show “HOLD”. Under the interface of switching wire connection, three-phase power enters its corresponding wire-connection measurement interface when this button is short pressed. Under electric energy mode, short press this button to start or stop accumulative counting. Long press this button to turn on/off backlight. The backlight turns off automatically after it is turned on for one minute.
5. /3P3W For 3PW position, short press this button to select measurement mode of 3P3W balanced load and unbalanced load. Under harmonic measurement mode, short press to adjust down the order of harmonic.
6. /3P4W For 3PW position, short press this button to select measurement mode of 3P4W balanced load and unbalanced load. Under harmonic measurement mode, short press to adjust up the order of harmonic. Note: For the operating instructions of button of setting electric energy accumulation mode, please refer to the operating instructions of measurement in electric energy position.
XI. Operating Instructions
Please check the three pieces of AAA batteries before measurement, if the battery voltage is low, the symbol ” ” will appears on the LCD, then please replace the battery in time. Note the symbol ” ” around the terminal, this symbol warns that the measured voltage cannot exceed the specified voltage.
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1. AC current measurement (Fig. 4)
L/R/A

UT219P User Manual

Power supply Load

N
AC current measurement
Fig. 4

1. Set the rotary switch to “A~/V~”, press SELECT to select AC current measurement. Press the trigger to clamp the measured conductor and then release the trigger slowly until the clamp jaws closes completely. Make sure that the measured conductor centers at the clamp jaws, error will be produced if the measured conductor does not centers at the clamp jaws. The clamp can only measure a current conductor at a time, if it measures two or more current conductors at the same time, the reading will be incorrect.
2. Read from the LCD the True RMS, peak and frequency of AC current, as shown below:

Power supply Load

Note: Do not release the trigger abruptly when pressing and holding it. Hall sensor is sensitive to magnet, heat and mechanic stress, impact can cause reading variation in a short time. To ensure measurement accuracy, please place the measured conductor at the center of the clamp jaws. Error of ±1.0% of reading will be produced if the measured conductor is not placed at the center of the clamp jaws.
2. AC voltage measurement (Fig. 5)
Red
L/R/A
Black
N
AC voltage measurement
Fig. 5
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UT219P User Manual

1. Connect red test lead (connected with red alligator clip already) with “V” terminal; and black (connected with black alligator clip already) with “COM”.
2. Set the rotary switch to “A~/V~”, press SELECT to select AC voltage measurement, and connect the alligator clips with power source or load to be measured in parallel.
3. Read from the LCD the True RMS, peak and frequency of AC voltage, as shown below:

Note: Do not input voltage over 1000Vrms. It is possible to measure higher voltage, but it may damage the clamp. Avoid electric shock when working with high voltage. Disconnect test leads with the measured circuit after all measurement operations are completed. The high voltage warning symbol ” ” will appear on the LCD if the measured voltage is over 30V AC; the red backlight flashes if the measured voltage is over 1000VAC.
3. W/VA/var (Fig. 6 & Fig. 7)
Red
L/R/A

Load

Power supply

Black
N

AC single-phase power measurement (1P2W) Fig. 6

Load

Power supply

Red
L1
Black
N
L2

Black Red

AC single-phase power measurement (1P3W) Fig. 7

1. Connect red test lead (connected with red alligator clip already) with “V” terminal; and black (connected with black alligator clip already) with “COM”.
2. Set the rotary switch to “W/VA/Var”, connect alligator clips with power source and load to be measured, and clamp the conductor to be measured, the current flows from up to down (up: front; down: bottom cover), then release the trigger slowly until the clamp jaws close completely. Please make sure that the measured conductor centers at the clamp jaws, error will be produced
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Power supply Load
Power supply Load

UT219P User Manual

if the measured conductor is not placed at the center of the clamp jaws. The clamp can only measure a current conductor at a time, if it measures two or more current conductors at the same time, the reading will be incorrect. 3) Press SELECT to cyclically read active power, apparent power, reactive power, power factor, and phase angle, as shown below:

Short press

Short press

Short press

Main display: Active power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Apparent power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Reactive power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Power factor Auxiliary display 1: Active power Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Short press

Short press

Main display: Phase angle Auxiliary display 1: Active power Auxiliary display 2: AC voltage Auxiliary display 3: AC current
Note: Phase angle is in reference to voltage. Do not input voltage over 1000Vrms. It is possible to measure higher voltage, but it may damage the clamp. Avoid electric shock when working with high voltage. Disconnect test leads with the measured circuit after all measurement operations are completed. The high voltage warning symbol ” ” will appear on the LCD if the measured voltage is over 30V AC; the red backlight flashes if the measured voltage is over 1000VAC. Do not release the trigger abruptly when pressing and holding it. Hall sensor is sensitive to magnet, heat and mechanic stress, impact can cause reading variation in a short time. To ensure measurement accuracy, please place the measured conductor at the center of the clamp jaws. Error of ±1.0% of reading will be produced if the measured conductor is not placed at the center of the clamp jaws. Incorrect wire connection will cause negative active power and cause the red backlight to flash, please check if the connections of voltage input terminal and clamp jaws are correct.
4. 3-phase power measurement
Wire connection interface: The places of clamp jaws, black test lead and red test lead are shown in the figure below.

Clamp jaws

Black test lead

Red test lead

4.1 3-phase 3-wire (3P3W) balanced mode (Fig. 8)

L1/R/A

Red

Black
L2/S/B

L3/T/C
AC 3-phase 3-wire power measurement (3P3W balance) Fig. 8
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UT219P User Manual

1. Connect red test lead (connected with red alligator clip already) with “V” terminal; and black 2) (Sceotntnheectreodtawryithswbiltacchktoall”i3gPatWor”,cplipreaslsre”ad/y3)Pw3iWth””CtoOsMel”e.ct 3P3W balance mode, then the
   clamp enters wire connection interface, as shown below:

“L1” on top right corner indicates the jaws clamp L1 live wire, “L2” on bottom left corner indicates test lead from COM terminal connects with L2 live wire, “L1” on bottom right corner indicates test lead from V terminal connects with L1 live wire. The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter measurement interface.
3) According to the wire connection interface (Fig. 8), clamp L1 live wire, connect L1 live wire with test lead from V terminal, and connect L2 live wire with test lead from COM terminal, then press “HOLD” button to enter measurement interface.
4) In measurement interface, press SELECT button to cyclically read active power, apparent power, reactive power, power factor and phase angle, as shown below:

Short press

Short press

Short press

Main display: Active power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Apparent power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Reactive power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Power factor Auxiliary display 1: Active power Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Short press

Short press

Main display: Phase angle Auxiliary display 1: Active power Auxiliary display 2: AC voltage Auxiliary display 3: AC current
4.2 3-phase 4-wire (3P4W) balance mode (Fig. 9)

L1/R/A

Red

L2/S/B

L3/T/C
Black
N

AC 3-phase 4-wire power measurement (3P4W balance) Fig. 9
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UT219P User Manual

1. Connect red test lead (connected with red alligator clip already) with “V” terminal; and black (connected with black alligator clip already) with “COM”.
2. Set the rotary switch to “3PW”, press “/3P4W” to select 3P4W balance mode, then the clamp enters wire connection interface, as shown below:

UT219P User Manual

1. Connect red test lead (connected with red alligator clip already) with “V” terminal; and
   black (connected with black alligator clip already) with “COM”.
2. Set the rotary switch to “3PW”, press ” /3P3W” to select 3P3W unbalance mode, then the clamp enters P1 wire connection interface, as shown below:

“L1” on top right corner indicates the jaws clamp L1 live wire, “n” on bottom left corner indicates test lead from COM terminal connects with neutral wire, “L1” on bottom right corner indicates test lead from V terminal connects with L1 live wire. The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter measurement interface.
3) According to the wire connection interface (Fig. 9), clamp L1 live wire, connect L1 live wire with test lead from V terminal, and connect neutral wire with test lead from COM terminal, then press “HOLD” button to enter measurement interface.
4) In measurement interface, press SELECT button to cyclically read active power, apparent power, reactive power, power factor and phase angle, as shown below:

Short press

Short press

Short press

Main display: Active power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Apparent power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Reactive power Auxiliary display 1: Power factor Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Main display: Power factor Auxiliary display 1: Active power Auxiliary display 2: AC voltage Auxiliary display 3: AC current

Short press

Short press

Main display: Phase angle Auxiliary display 1: Active power Auxiliary display 2: AC voltage Auxiliary display 3: AC current
4.3 3-phase 3-wire (3P3W) unbalance mode (Fig. 10)

Power supply Load

Red
L1/R/A
Black
L2/S/B
L3/T/C

Black Red

AC 3-phase 3-wire power measurement (3P3W unbalance) Fig. 10
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“L1” on top right corner indicates the jaws clamp L1 live wire, “L2” on bottom left corner indicates test lead from COM terminal connects with L2 live wire, “L1” on bottom right corner indicates test lead from V terminal connects with L1 live wire. The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter P1 measurement interface. 3) According to the wire connection interface (Fig. 10), clamp L1 live wire, connect L1 live wire
with test lead from V terminal, and connect L2 live wire with test lead from COM terminal, then press “HOLD” button to enter P1 measurement interface, as shown below:
The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter P2 wire connection interface. 4) In P1 measurement interface, after the displayed value stabilizes, press “HOLD” button to
enter P2 wire connection interface, as shown below:
“L3” on top right corner indicates the jaws clamp L3 live wire, “L2” on bottom left corner indicates test lead from COM terminal connects with L2 live wire, “L3” on bottom right corner indicates test lead from V terminal connects with L3 live wire. The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter P2 measurement interface.
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UT219P User Manual
5) According to the wire connection interface (Fig. 10), clamp L3 live wire, connect L3 live wire with test lead from V terminal, and connect L2 live wire with test lead from COM terminal, then press “HOLD” button to enter P2 measurement interface, as shown below:

UT219P User Manual

1. Connect red test lead (connected with red alligator clip already) with “V” terminal; and black (connected with black alligator clip already) with “COM”.
2. Set the rotary switch to “3PW”, press “/3P4W” to select 3P4W unbalance mode, then the clamp enters P1 wire connection interface, as shown below:

The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter phase-combined active power interface. 6) In P2 measurement interface, press “HOLD” button to read phase-combined active power,
press SELECT button to cyclically read phase-combined active power, P1 active power and P2 active power, as shown below:
Short press

“L1” on top right corner indicates the jaws clamp L1 live wire, “n” on bottom left corner indicates test lead from COM terminal connects with neutral wire, “L1” on bottom right corner indicates test lead from V terminal connects with L1 live wire. The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter P1 measurement interface.
3) According to the wire connection interface (Fig. 11), clamp L1 live wire, connect L1 live wire with test lead from V terminal, and connect neutral wire with test lead from COM terminal, then press “HOLD” button to enter P1 measurement interface, as shown below:

Second wire connection interface Main display: Active power P2 Auxiliary display 1: P2 prompt Auxiliary display 2: Voltage Auxiliary display 3: Current

Second wire connection interface Main display: Active power P1 Auxiliary display 1: P1 prompt Auxiliary display 2: Voltage Auxiliary display 3: Current

Phase-combined interface Main display: Phase-combined active power P1+P2 Auxiliary display 1: Phase-combined prompt

4.4 3-phase 4-wire (3P4W) unbalance mode (Fig. 11)

Power supply Load

L1/R/A

Red

L2/S/B

L3/T/C
Black
N

AC 3-phase 4-wire power measurement (3P4W unbalance) Fig. 11
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The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter P2 wire connection interface. 4) In P1 measurement interface, after the displayed value stabilizes, press “HOLD” button to
enter P2 wire connection interface, as shown below:
“L2” on top right corner indicates the jaws clamp L2 live wire, “n” on bottom left corner indicates test lead from COM terminal connects with neutral wire, “L2” on bottom right corner indicates test lead from V terminal connects with L2 live wire. The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter P2 measurement interface.
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UT219P User Manual 5) According to the wire connection interface (Fig. 11), clamp L2 live wire, connect L2 live
wire with test lead from V terminal, and connect neutral wire with test lead from COM terminal, then press “HOLD” button to enter P2 measurement interface, as shown below:
The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter P3 wire connection interface. 6) In P2 measurement interface, after the displayed value stabilizes, press “HOLD” button to
enter P3 wire connection interface, as shown below:
“L3” on top right corner indicates the jaws clamp L3 live wire, “n” on bottom left corner indicates test lead from COM terminal connects with neutral wire, “L3” on bottom right corner indicates test lead from V terminal connects with L3 live wire. The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter P3 measurement interface. 7) According to the wire connection interface (Fig. 11), clamp L3 live wire, connect L3 live wire
with test lead from V terminal, and connect neutral wire with test lead from COM terminal, then press “HOLD” button to enter P3 measurement interface, as shown below:
The finger symbol on “HOLD” segment flashes to indicate pressing “HOLD” button to enter phase-combined active power interface.
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UT219P User Manual
8) In P2 measurement interface, press “HOLD” button to read phase-combined active power, press SELECT button to cyclically read phase-combined active power, phase-combined apparent power, phase-combined reactive power, phase- combined phase angle, P1 active power, P2 active power and P3 active power, as shown below:

Short press

Short press

Main display: Phase-combined reactive power Auxiliary display 1: Phase- combined power factor

Main display: Phase-combined apparent power Auxiliary display 1: Phase- combined power factor

Main display: Phase-combined active power Auxiliary display 1: Phase-combined power factor

Short press

Short press

Short press

Short press

Short press

Main display: Phase-combined phase angle Auxiliary display 1: Phase-combined power factor

Main display: First active power Auxiliary display 1: P1 prompt Auxiliary display 2: Voltage Auxiliary display 3: Current

Main display: Second active power Auxiliary display 1: P2 prompt Auxiliary display 2: Voltage Auxiliary display 3: Current

Main display: Third active power Auxiliary display 1: P3 prompt Auxiliary display 2: Voltage Auxiliary display 3: Current

Note:
Phase angle is in reference to voltage. Do not input voltage over 1000V. It is possible to measure higher voltage, but it may damage the clamp. Avoid electric shock when working with high voltage. Disconnect test leads with the measured circuit after all measurement operations are completed. The high voltage warning symbol ” ” will appear on the LCD if the measured voltage is over 30V AC; the red backlight flashes if the measured voltage is over 1000VAC. Do not release the trigger abruptly when pressing and holding it. Hall sensor is sensitive to magnet, heat and mechanic stress, impact can cause reading variation in a short time. To ensure measurement accuracy, please place the measured conductor at the center of the clamp jaws. Error of ±1.0% of reading will be produced if the measured conductor is not placed at the center of the clamp jaws. Incorrect wire connection will cause negative active power and cause the red backlight to flash, please check if the connections of voltage input terminal and clamp jaws are correct.

5. Harmonic analysis
5.1 Current harmonic analysis (Fig. 4)

1. Set the rotary switch to “HARM”, press SELECT button to select AC current harmonic analysis. Press the trigger to clamp the measured conductor and then release the trigger slowly until the clamp jaws closes completely. Make sure that the measured conductor centers at the clamp jaws, error will be produced if the measured conductor does not centers at the clamp jaws. The clamp can only measure a current conductor at a time, if it measures two or more current conductors at the same time, the reading will be incorrect.
2. Press ” ” or ” ‘ to read THD %f, THD %r, RMS of harmonic component of each order,
   and harmonic ratio of harmonic component of each order to fundamental wave, for examples:

20

THD %f

THD %r

UT219P User Manual Analysis of component
of 30th harmonic

Main display: THD %f Auxiliary display 1: Frequency Auxiliary display 3: True RMS of THD current

Main display: THD %r Auxiliary display 1: Frequency Auxiliary display 3: True RMS of THD current

5.2 Voltage harmonic analysis (Fig. 5)

Main display: Harmonic ratio of component of 30th harmonic to fundamental wave Auxiliary display 1: Frequency Auxiliary display 2: Prompt of analyzing 30th harmonic Auxiliary display 3: True RMS of component of 30th harmonic

1. Connect red test lead (connected with red alligator clip already) with “V” terminal; and black

(connected with black alligator clip already) with “COM”.

2. Set the rotary switch to “HARM”, press SELECT button to select AC voltage harmonic

analyzing, Press ”

then ” or ”

con”nteocrteaaldligTaHtoDr c%lipf,sTwHitDh

power source or load %r, RMS of harmonic

to be measured in parallel. component of each order ,

and harmonic ratio of harmonic component of each order to fundamental wave, for examples:

THD %f

THD %r

Analysis of component of 30th harmonic

Main display: THD %f Auxiliary display 1: Frequency Auxiliary display 3: RMS of THD voltage
Note:

Main display: THD %r Auxiliary display 1: Frequency Auxiliary display 3: RMS of THD voltage

Main display: Harmonic ratio of component of 30th harmonic to fundamental wave Auxiliary display 1: Frequency Auxiliary display 2: Prompt of analyzing 30th harmonic Auxiliary display 3: RMS of component of 30th harmonic

Do not input voltage over 1000V. It is possible to measure higher voltage, but it may damage the clamp. Avoid electric shock when working with high voltage. Disconnect test leads with the measured circuit after all measurement operations are completed. The high voltage warning symbol ” ” will appear on the LCD if the measured voltage is over 30V AC; the red backlight flashes if the measured voltage is over 1000VAC. Do not release the trigger abruptly when pressing and holding it. Hall sensor is sensitive to magnet, heat and mechanic stress, impact can cause reading variation in a short time. To ensure measurement accuracy, please place the measured conductor at the center of the clamp jaws. Error of ±1.0% of reading will be produced if the measured conductor is not placed at the center of the clamp jaws. If zero crossing of harmonic does not meet the zero-crossing condition of fundamental wave signal for multiple times, harmonic analysis can be performed by using the mode of setting fixed frequency.

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UT219P User Manual
6. Set the mode of electric energy accumulation (Fig. 12)
Red
L/R/A

Power supply Load

Black
N

Single-phase active electric energy measurement Fig. 12

1. Set the rotary switch to “Wh/Setting”, press SELECT button to select the mode of electric energy accumulation, the setting parameters are shown as below:

Serial No. Setting value

oFF

No value (time accumulation)

01 3200 cyc./1kWh

02 1600 cyc./1kWh

03 1200 cyc./1kWh

04 1000 cyc./1kWh

05 600 cyc./1kWh

06 500 cyc./1kWh

Change the setting value Yes: No: —
—

Serial No.
07 08 09 10 0.10kWh 0.05kWh 0.01kWh

Setting value
300 cyc./1kWh 250 cyc./1kWh 150 cyc./1kWh 125 cyc./1kWh 0.10kWh 0.05kWh 0.01kWh

Change the setting value Yes: No: —

— — —

Press ” ” or ” ” to change the serial No. of main display. When the setting value can be changed by selecting serial No., press “HOLD” to select the part to be changed (auxiliary 2, auxiliary 3), then press “MAX MIN” to select ones place, tens place, hundreds place and thousands place of the value in auxiliary display 2. Press ” ” or ” ” to change partial values. After the setting is changed, press “SELECT” to enter the mode of measuring electric energy accumulation.

Note: The changed setting will be saved in the clamp.

2. Connect alligator clips with power source or load to be measured in parallel, and clamp the conductor to be measured, the current flow from up to down (up: front; down: bottom cover), then release the trigger slowly until the clamp jaws close completely. Please make sure that the measured conductor centers at the clamp jaws, error will be produced if the measured conductor is not placed at the center of the clamp jaws. The clamp can only measure a current conductor at a time, if it measures two or more current conductors at the same time, the reading will be incorrect.

3. In measurement interface of electric energy accumulation, press “HOLD” to start or stop accumulating electric energy. Measurement interface of time accumulation of electric energy (Serial No.: OFF)
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UT219P User Manual

Start accumulating Short press

Start accumulating Short press

Main display: Standby mode prompt Auxiliary display 1: Active power Auxiliary display 2: Time

Main display: Measured electric energy Auxiliary display 1: Active power Auxiliary display 2: Elapsed time
Restart Short press

Main display: Measured electric energy Auxiliary display 1: Active power Auxiliary display 2: Elapsed time

Measurement interface of compare function of electric meter

Start accumulating Short press

Start accumulating Short press

Main display: Standby mode prompt Auxiliary display 1: Active power Auxiliary display 2: Time

Main display: Operation prompt Auxiliary display 1: Active power Auxiliary display 2: Time Auxiliary display 3: Theoretical value
Restart
Short press

Main display: Actual measured value–theoretical value Auxiliary display 1: Actual measured value, theoretical value Auxiliary display 2: Actual measured value Auxiliary display 3: Theoretical value

Operate the compare function of electric meter For comparing mechanical meter: Press “Hold” to start accumulation when the round disk rotates for one round; press “HOLD” again to stop accumulation when the round disk rotates for another round, as shown below:
Mechanical Meter Round disc rotates for one round
Start accumulating

Round disc
23

Stop accumulating

UT219P User Manual

For comparing electronic meter: Press “Hold” to start accumulation when the LED flashes for

one time, press “HOLD” again to stop accumulation when the LED flashes again, as shown

below:

Electronic Meter LED flashes for one time

Start accumulating

Stop accumulating
For comparing fixed electric energy meter: Take 0.1kWh as an example, press “HOLD” to start accumulation when the value changes by 0.1kWh; press “HOLD” again to stop accumulation when the value changes by 0.1kWh again, as shown below:

Start accumulating

Decimal place: 0.1 kWh

Stop accumulating

Note:
Phase angle is in reference to voltage. Do not input voltage over 1000V. It is possible to measure higher voltage, but it may damage the clamp. Avoid electric shock when working with high voltage. Disconnect test leads with the measured circuit after all measurement operations are completed. The high voltage warning symbol ” ” will appear on the LCD if the measured voltage is over 30V AC; the red backlight flashes if the measured voltage is over 1000VAC. Do not release the trigger abruptly when pressing and holding it. Hall sensor is sensitive to magnet, heat and mechanic stress, impact can cause reading variation in a short time. To ensure measurement accuracy, please place the measured conductor at the center of the clamp jaws. Error of ±1.0% of reading will be produced if the measured conductor is not placed at the center of the clamp jaws. Incorrect wire connection will cause negative active power and cause the red backlight to flash, please check if the connections of voltage input terminal and clamp jaws are correct.

24

Power supply Load

7. Phase sequence detection (Fig. 13)

L1/R/A

Red

Black
L2/S/B

L3/T/C

Black Red

UT219P User Manual

Phase detection
Fig. 13

1. Connect red test lead (connected with red alligator clip already) with “V” terminal; and black (connected with black alligator clip already) with “COM”.
2. Set the rotary switch to “Phase Detect” to enter the first prompt interface of wire connection, as shown below:

“L2” on bottom left corner indicates test lead from COM terminal connects with L2 live wire, “L1” bottom right corner indicates test lead from V terminal connects with L1 live wire.
3) According to the first prompt interface of wire connection (Fig. 13), connect test lead from V terminal with L1 live wire, then connect test lead from COM terminal with L2 live wire. When the voltage is locked, the clamp enters the second prompt interface of wire connection, as shown below:

“L2” on bottom left corner indicates test lead from COM terminal connects with L2 live wire, “L3” bottom right corner indicates test lead from V terminal connects with L3 live wire, then the prompt time “10s” on top right corner starts to decrease.
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UT219P User Manual
4) According to the second prompt interface of wire connection (Fig. 13), within 10 seconds, connect test lead from V terminal with L3 live wire, and connect test lead from COM terminal with L2 live wire, then three kinds of testing results will be displayed. For positive sequence, “L1”, “L2” and “L3” light up clockwise, as shown below:
For inverse sequence, “L1”, “L2” and “L3″ light up counterclockwise, and red backlight appears, as shown below:
Note: Do not input voltage over 1000Vrms. It is possible to measure higher voltage, but it may damage the clamp. Avoid electric shock when working with high voltage. Disconnect test leads with the measured circuit after all measurement operations are completed. The high voltage warning symbol ” ” will appear on the LCD if the measured voltage is over 30V AC; the red backlight flashes if the measured voltage is over 1000VAC.
5) Press “HOLD” to return to initial interface to start phase sequence detection.
8. Other functions
Auto power off: The clamp powers off automatically after 15 minutes of inactivity. To awaken the clamp, please press SELECT button in Auto-off state. To disable the Auto-off function, please hold down SELECT button and power on the clamp. Restart the clamp to enable the Auto-off function.
Battery voltage detection: When the battery voltage is: >3.6V, ” ” appears. 3.4V~3.6V, ” ” appears. 3.2V~3.4V, ” ” appears. 3.0V~3.2V, ” ” appears. 2.8V~3.0V, ” ” appears. <2.8V, the clamp powers off automatically.
26

UT219P User Manual Red backlight as warning indication: Incorrect wire connection will cause negative active power and cause the red backlight to flash. The red backlight flashes when the measured voltage is >1000VAC and current >1000A. The red backlight flashes if the phase sequence is inverse. Analyzing fixed-frequency harmonic: Long press RANGE button to power on the clamp to HARM position, then the clamp enters the fixed-frequency harmonic setting interface, as shown below:
Press “MAX MIN” to select ones place, tens place, hundreds place and thousands place of the value in auxiliary display. Press ” ” or ” ” to change partial values. When “HOLD” is pressed after the setting is completed, the clamp enters fixed-frequency harmonic analysis mode, “SET” in auxiliary display and fixed frequency are displayed alternately for one second, as shown below, other displayed values are same with harmonic sweeping analysis mode.
To reset fixed-frequency mode of other frequencies, please switch to other positions and then return to HARM position. Note: Other positions are also in fixed-frequency mode.
XII. Technical Specifications
Accuracy: ± (a% of reading + b digits), one-year warranty period Ambient temperature: 23°C±5°C (73.4°F±9°F); relative humidity: 75% Note: The temperature condition of accuracy is 18°C~28°C, the fluctuation range of ambient temperature keeps within ±1°C. If the temperature is 18°C or >28°C, the additional error of temperature coefficient is “0.1 × (specified accuracy)/°C”. To ensure measurement accuracy, please place the measured conductor at the center of the clamp jaws. Error of ±1.0% of reading will be produced if the measured conductor is not placed at the center of the clamp jaws.
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UT219P User Manual

1. AC current

Range
60.00A 600.0A 1000A

Resolution 15Hz~40Hz

0.01A

0.1A

±(2.5%+5)

1A

Accuracy 40Hz~70Hz ±(2.0%+3)
±(1.5%+3)

70Hz~1000Hz ±(2.5%+5)

Overload protection
1000A AC

ACA frequency response: 15~1kHz ACA displayed true RMS, measurement range: 60.00A range: 0.30A~62.00A 600.0A range: 3A~620.00A 1000A range: 30A~1100A Range to ensure accuracy: 5~100% of Range PEAK measurement range: 60.00A range: 0.3A~120.0A 600.0A range: 3A~1200A 1000A range: 30A~1500A PEAK accuracy: 60A position:
40Hz~70Hz: ±(5.0%+15) 70Hz~1kHz: ±(6.5%+15) 600A/1000A position: 40Hz~70Hz: ±(5.0%+5) 70Hz~1kHz: ±(6.5%+5) PEAK coefficient: <2.0

2. AC voltage

Range Resolution 15Hz~40Hz

Accuracy 40Hz~70Hz

70Hz~1000Hz

999.9

0.1V

±(2.0%+5)

±(0.7%+3)

±(2.0%+5)

ACV input impedance: 2M ACV frequency response: 15~1kHz ACV displayed true RMS, measurement range: 30.0V~999.9V PEAK measurement range: ± (30.0V~1500V) PEAK accuracy: 40Hz~70Hz: ±(2.5%+5) 15Hz~40Hz; 70~1000Hz: ±(4.0%+5) PEAK coefficient: <1.5

Overload protection
1000Vrms

3. Power 3.1 Active power

Range
60.00kW 600.0kW 1000kW

Accuracy

Resolution 15Hz~40Hz 40Hz~70Hz Power factor: 1 Power factor: 1

0.01kW 0.1kW 1kW

±(2.5%+5)

±(2.0%+5) ±(1.7%+5)

70Hz~1000Hz Power factor: 1
±(2.5%+5)

Overload protection
1000A AC 1000Vrms

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UT219P User Manual

Note: 1) If the displayed power factor is not 1, please calculate the specification of power according
to the phase angle error. 2) [1P] 0.09kW~1000kW 3) [3P3W] 0.15kW~1732kW 4) [3P4W] 0.27kW~3000kW

3.2 Apparent power

Accuracy

Range

Resolution 15Hz~40Hz 40Hz~70Hz Power factor: 1 Power factor: 1

70Hz~1000Hz Power factor: 1

Overload protection

60.00kVA 600.0kVA 1000kVA

0.01kVA 0.1kVA 1kVA

±(2.5%+5)

±(2.0%+5) ±(1.7%+5)

±(2.5%+5)

1000A AC 1000Vrms

Note: 1) If the displayed power factor is not 1, please calculate the specification of power according
to the phase angle error. 2) [1P] 0.09kVA~1000kVA 3) [3P3W] 0.15kVA~1732kVA 4) [3P4W] 0.27kVA~3000kVA

3.3 Reactive power

Accuracy

Range

Resolution 15Hz~40Hz 40Hz~70Hz Power factor: 1 Power factor: 1

70Hz~1000Hz Power factor: 1

Overload protection

60.00kVAr 0.01kVAr 600.0kVAr 0.1kVAr 1000kVAr 1kVAr

±(3.0%+5)

±(2.5%+5) ±(2.0%+5)

±(3.0%+5)

1000A AC 1000Vrms

Note: 1) If the displayed power factor is not 1, please calculate the specification of power according
to the phase angle error. 2) [1P] 0.09kVAr~1000kVAr 3) [3P3W] 0.15kVAr~1732kVAr 4) [3P4W] 0.27kVAr~3000kVAr

3.4 Power factor

Range Resolution

Accuracy
15Hz~1000Hz

-1~ 1

0.001

Calculate the specification of power factor according to the phase angle error

Overload protection
1000A AC 1000Vrms

Remark Min. measured voltage: 30V Max. measured current: 10A

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UT219P User Manual

3.5 Phase angle

Range

Resolution

-180° (advance) ~179.9° (delay)

0.1°

15Hz 40~Hz

Accuracy 40Hz 70~Hz

70Hz 100~0Hz

±5° ±3° ±5°

Overload protection

Remark

1000A AC 1000Vrms

Min. measured voltage: 30V Max. measured current: 10A

Note: 1. The null-position cross phase difference between current and voltage waveforms is positive
if current lags behind voltage; negative if current is ahead of voltage. 2. An error of 2° is added if the measured conductor is not placed at the center of the clamp jaws.

4. Harmonic analysis

Function

Harmonic order

Accuracy

Overload protection

15Hz~400Hz

RMS of harmonic of each order

1 2 6 7 8 9 10 11 15 16 30 30 40

±(3.0%+10) ±(3.5%+10) ±(4.5%+10) ±(5.0%+10) ±(7.0%+10) ±(10.0%+10) ±(20.0%+10)

1000A AC 1000Vrms

Note: 1) Minimum measured voltage is 30V, minimum measured current: >10% of current range. 2) THD-F and THD-R are displayed on the LCD. 3) Harmonic analysis is recorded in the clamp, and can be displayed and viewed on mobile
APP via Bluetooth module. 4) If fundamental frequency is 100Hz, the harmonic order reaches 40.
If fundamental frequency is >100Hz, the harmonic order reaches 15.

5. Frequency

Range 15Hz 1000Hz

Resolution 0.1Hz

Accuracy 15Hz~1000Hz ±(0.3%+3)

Overload protection
1000A AC 1000Vrms

Note: Minimum measured voltage is 30V, minimum measured current: >5% of current range.

6. Phase detection

Function

Range

Frequency

Overload protection

Phase Detect

80V~1000V

40Hz~80Hz

1000Vrms

Note: The LCD shows “1 2 3” to indicate positive phase sequence or “3 2 1” to indicate negative one. The LCD shows “– — — –” to indicate phase loss or unmeasurable.

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UT219P User Manual

7. Single-phase active electric energy

Range

Calculating method

0.00Wh~999.9k Wh

Every 0.3 second, add the step value of electric energy of last positive active power; add zero for negative active power.

Overload protection
1000A AC 1000Vrms

XIII. Bluetooth software
1. Introduction The Bluetooth software is a mobile APP, supporting mobile phones running iOS 10.0 or newer and Android 5.0 or newer. Mobile phones running other operating system depends on the actual issued application software.
2. Installation For iOS: Search “UNI-T Smart Measurement” in “App Store”. For Android: Search “UNI-T Smart Measurement” on UNI-T official website or scan the QR code below.

(QR code for IOS) (QR code for Android)
3. Usage 3.1. Long press “SELECT” to turn on Bluetooth, if the clamp fails to connect with the mobile APP after Bluetooth is turned on, the Bluetooth symbol on the LCD will flash. Click “UNI-T Smart Measurement” APP icon, select “UT219P” , then click connection. User can also scan the QR code at the clamp for direct connection. After successful connection, the Bluetooth symbol is displayed on the LCD for a long time. Data communication, measurement result viewing, button control and other operations can be achieved through “UNI-T Smart Measurement” APP.
3.2. “UNI-T Smart Measurement” APP has multiple functions including Bluetooth communication, data recording, meter management, report generation, data share, data synchronization, and more. Please refer to “UNI-T Smart Measurement” User Manual for how to use the functions mentioned.
4. Uninstallation To uninstall the APP, please use the uninstaller of mobile phone.

UT219P User Manual
XIV. Maintenance (Fig. 14)
Warning: 1. General maintenance a. The product must be maintained or serviced by qualified professional repair personnel or
designated repair department. b. Clean the casing with dry cloth periodically, do not use cleaning agent containing abrasive
or solvent.
2. Battery installation or replacement The product is powered by 3 AAA batteries, please install or replace the battery according to the steps below: a. Power off the product and remove the test leads from the input terminal. b. Loosen the screw, take off the battery cover, remove the battery, and then install new
battery according to correct polarity. c. Please install appropriate battery with same model as original battery. d. Rejoin the battery cover and tighten the screw.
Fig. 14

31

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