English
UNITED KINGDOM •
Cust omer Service Returns Address e-mail: customerservice@clasohlson.co.uk Clas Ohlson Ltd, The Archway, 7-9 West Street, Reading, Berkshire, RG1 1TT
Ver. 20201126
UNI-T Voltage Tester
Art.no 36-8124 Model UT22B-EU
Please read theentire instruction manual before using theproduct and then
save it for future reference. We reserve theright for any errors in text or images
and any necessary changes made to technicaldata. If you have any questions
concerning technical problems please contact our Customer Services.
Safety
First read theentire instruction manual and make sure that you have understood
all theinformation regarding safety and maintenance in order to be able to
use thevoltage tester in asafeway.
Warning:
• To avoid electric shocks, pay special attention when themeasured voltage
exceeds thesafe working voltage threshold (36V).
• Do not measure voltages over 400V. The Hazardous Voltage indicator
will turn on when themeasured voltage exceeds 50V and flash when
thevoltage exceeds thepotentially lethal voltage threshold of 400V.
• The voltage tester should not be connected to avoltage source for more
than 5 seconds at atime.
• The function of thevoltage tester should be checked on aknown voltage
source before measuring is commenced.
• Only grip thetest probes by thehandles. Never touch theelectrodes (tips)
of thetext probes.
• The voltage tester must only be used on circuits within thespecified
measuring range (400V).
• Do not use thevoltage tester if it is in any way damaged or malfunctioning.
• Do not use thevoltage tester in awet or humid environment. Accurate
readings can only be guaranteed within thetemperature and humidity
ranges specified in the sectionbelow.Specifications
• Safety can no longer be guaranteed if thevoltage tester does not display
reliable readings.
• When using thevoltage tester, only touch thegripping surfaces of thetest
probes, never touch themetaltips.
Symbols
Product description
The UT22B-EU is anautomatic voltage tester capable of
testing AC/DC voltages from 12V to 400V. It is designed
to be suitable for use by professional electricians and
homeownersalike. Typical applications of thevoltage
tester include testing thevoltage of acar battery
(direct current) and testing thevoltage of awall socket
(alternating current).
1. Negative test electrode (−)
2. Positive test electrode (+)
3. High and hazardous voltage indicator (> 50 V)
4. Voltage level indicators
5. AC/DC voltage indicators
If thepositive indicator comes on, thepositive test probe (+) is connected to
thepositive terminal of theobject undertest.
If thenegative indicator comes on, thenegative test probe (−) is connected to
thenegative terminal of theobject undertest.
Note: If thevoltage under test is less than 10V, thetester may not detectit.
Care and maintenance
• In theevent of abnormal operation or malfunction, stop using thevoltage
tester immediately and contact your retailer.
• Repairs must only be carried out by aqualified electrician.
• Clean thevoltage tester by wiping it with aclean, drycloth.
• Store thevoltage tester in adry and clean place out of children’sreach.
• Make sure that thevoltage tester is dry before usingit.
Responsible disposal
This symbol indicates that theproduct should not be disposed
of with general householdwaste. This applies throughout
theentireEU. In order to prevent any harm to theenvironment
or health hazards caused by incorrect waste disposal,
theproduct must be handed in for recycling so that thematerial
can be disposed of in aresponsible manner. When recycling
your product, take it to your local collection facility or contact
theplace of purchase. They will ensure that theproduct is disposed of in
anenvironmentally sound manner.
Specifications
Measuring range 12−400 V AC/DC
Frequency range AC 0−60 Hz
Polarity detection Automatic
Standard compliance EN 61326-1:2013, EN 61326-2-2:2013,
EN 61243-3:2014
Measurement category CAT III 400 V
Impedance (internal resistance) 17kΩ@ELVa.c (<50 V AC = 17kΩ)
Recovery time <5 s
Overvoltage protection > 400 V AC/DC
IP rating IP54
Indication steps ± 12, 24, 50, 120, 230, 400 V AC/DC
Polarity indicators DC positive: (+) Plus sign lit,
DC negative: (−) Minus sign lit,
AC: (+/−) Both theAC and DC voltage
indicators lit
Operating temperature / humidity −15 to 45 °C, RH < 85 %
Storage temperature −20 to 60 °C
Dimensions 265x42x27mm
Weight 136 g
Warning, potential hazard. Follow theinstructions in this instruction
manual.
The voltage tester should not be disposed of in your bin as
householdwaste. Thevoltage tester should be regarded as
waste electrical and electronic equipment and taken to your local
household waste recycling centre for disposal in accordance with
local regulations.
If you are unsure how to proceed, contact your local council.
The voltage tester complies with European Union standards.
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Instructions for use
The function of thevoltage tester should be checked on aknown voltage
source before measuring is commenced.
• To test theDC voltage measurement function: use abattery with aknown
voltage, such as acar battery.
• To test theAC voltage measurement function: use aknown voltage, such
as a230V wall socket.
Note: Do not use thevoltage tester if it is not functioning properly.
Measuring AC voltage
Touch thetips of thetest probes against theobject undertest.
For AC voltages over 12 V both thepositive (plus sign) and negative (minus
sign) indicators willlight. The AC/DC voltage indicators come on in stages
depending on themagnitude of thevoltage.
Measuring DC voltage
Touch thetips of thetest probes against theobject undertest.
For DC voltage over 12 V either thepositive or negative indicator will turn on
depending on thepolarity. The AC/DC voltage indicators come on in stages
depending on themagnitude of thevoltage.
Features
• Measures alternating current and direct current from
12 V to 400V.
• Automatic identification of AC/DC voltage
• Automatic identification of DC voltage polarity
• Hazardous voltage indicator
• Complies with thefollowing standards: RoHS, CE, and
CAT III 400 V
• Has aningress protection rating ofIP54. Harmful amounts
of dust and water can not enter thevoltage tester and
cause insulation faults.