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P/N:110401109039X
UT22B-EU Voltage Tester User Manual
Preface
Thank you for purchasing the new voltage tester. In order to use this product safely and correctly,
please read this manual thoroughly, especially the Safety Warning part.
After reading this manual, i t is recommend ed to keep the m anual at an eas ily 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 fr om the purchase date. Th is warrant y does not a pply to dam age caused by accident,
negligence, misuse , modifica tion, contaminatio n or improper handli ng. The deal er 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.
I. Safety Warning
This manual contains warning information and safety regulations. Please observe them strictly to
ensure the safety of the user and tester.
Note:
1. Pl ease read and unde rsta nd all co nten ts of the manu al co ncer ning saf ety, op erat ion a nd
maintenance before using the tester.
2. Uni-Trend is not responsible for any damage caused by improper use or violation of the safety
regulations in the manual.
3. This manual is subject to change without prior notice. Safety symbol “ ” has three meanings
in the manual. Users should pay special attention to the operation with the symbol when reading.
Danger----- identifies conditions and actions that are likely to pose serious or fatal hazards.
Warning---- identifies conditions and actions that may pose serious or fatal hazards.
Caution----- identifies conditions and actions that may pose minor injury or damage the tester.
To avoid electric shock, pay special attention when the measured voltage exceeds the personal
safety voltage (36V).
Before each use verify tester operation by measuring a known voltage.
Only touch the handle part in using the tester. Keep fingers behind the finger guards and away
from the metal probe contacts when making measurements.
Do not use the tester over range (400V).
test lead if it appearsDo not use the tester or to be damaged.
Do not use the tester in extreme temperatures or wet weather. Keep the operating temperature
between -15°C~45°C and relative humidity less than 85%.
The safety is no longer guaranteed if:
There is obvious damage.
Functions of the tester are impaired.
The tester has been stored at extreme temperatures for a long time.
The meaning of the symbols associated with this tester:
Danger, Warning or Caution
Equipment protected throughout by DOUBLE INSULATION or
REINFORCED INSULATION
Do not discard the tester or its accessories as unsorted municipal waste. Please
dispose properly in accordance with local regulations.
Complies with European Union standards
Caution, possibility of electric shock
Suitable for live working
It is applicable to and measuring circuits connected to the distribution
CAT III
part of the building’s low-voltage MAINS installation.
Extra Low Voltage (Voltage below 50V a.c. or 120V d.c.)
ELV
Time
specified on-load time during which the voltage detector is able to operate correctly
rating
Recovery
II. Introduction
The UT22B-EU is an automatic voltage tester that tests AC/DC voltages from 12V to 400V. It is
designed for and homeowners alike.
and tests sockets, appliances, etc.
Features:
Test ranges of AC/DC voltage: 12V, 24V, 50V, 120V, 230V, 400V
standards
minimum no-load time between two uses as specified by the manufacturer
time
electricians It is available for residential or commercial use,
Automatic identification of AC/DC voltage
Automatic identification of DC voltage polarity
Hazardous voltage indicator
Complies with IP54, RoHS, CE, and CAT III 400V
testing
III. Structure
a. Test probe (-)
b. Test probe (+)
c. Hazardous voltage indicator
d. Voltage level indicators
e. AC/DC voltage indicators
a
b
IV. Operating instructions
In a safe operating environment, connect the test to probes
the und er t es t. T he v olt ag e le ve l in dic at ors will cir cui t
illuminate indicating the voltage present. The range of the
measured voltage can be judged based on the status of the
indicators. When DC voltage is detected, the “+” or “-“polarity
indicator will ill umina te, re vealing the polari ty. When AC
voltage is detected, both polarity indicators will illuminate.
If the range of the measured voltage can be clearly
deter mined, pleas e stop t esting. The t esting time
should be less than 5s to ensure the service life of
the tester.
If the voltage under test is less than 10V, the tester
may not detect it. At this time, the 12V LED voltage
level indicator may be on or off.
Do not attempt to measure AC/DC voltage in excess
of 400V under an y circum stances . The haz ardous
voltage indicator will illuminate in the presence of
voltage exceeding 50V AC or DC ,with characteristics
as detailed in the table below:
Hazardous voltage indicator status
Solid on
Blinking at approx. 1.5Hz
c
d
e
AC voltage
>50V
>400V
DC voltage
>50V
>400V
V. Specifications
1. General specifications
Operating altitude: Up to 2000m
Relative humidity: <85% non-condensing
Operating temperature: -15°C~45°C
Storage temperature: -20°C~60°C
265mm*42mm*27mmDimensions:
Weight: 136g
Drop protection: 2m
Ingress protection: IP54
Safety rating: CAT III 400V
Pollution degree: 2
Recovery time: <5s
Time rating: >600s
17kΩ@ELV a.c. : When voltage below 50Vac ,the tester internal impedance is 17kΩ
Standards: EN61326-1:2013, EN61326-2-2:2013, EN61243-3:2014
2. Electrical specifications
Voltage level indicators:
AC: 12V, 24V, 50V, 120V, 230V, 400V
DC: 12V, 24V, 50V, 120V, 230V, 400V
Polarity indicators:
DC Positive: (+) LED illuminated
DC Negative: (-) LED illuminated
Both (+/-) LED illuminated indicates AC
Hazardous voltage indicator:
Solid on when voltage >50V
Blinking at 1.5Hz when voltage >400V
Input protection: 400V AC/DC
Maximum measurable voltage: 400V AC/DC
Accuracy: Voltage level indicators typically illuminate fully at approx. 70% to 100% of indicated
voltage, except for 12V AC/DC (50% to 100%)
AC frequency: 50Hz/60Hz
VI. Maintenance and Cleaning
1. If an abnormal phenomenon occurs or the tester malfunctions during normal operation, please
stop using it immediately and contact your seller for confirmation.
2. Remove the test probes from the circuit under test before cleaning. Wipe the tester surface with
a clean, d ry lint-free cloth. Do not use a brasive cl eaners or solvents. Make sure t he tester i s
ventilated and dry before using.
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