Besantek BST-ET14 User manual
WIRING POLARITY CHECKER,
MAINS ADAPTOR, ELCB (RCD)
and APPLIANCE TESTER.
INSTRUCTION MANUAL
Index
1. Safety Rules...................................................
2. Safety Checks ................................................
3. General Description........................................
4. Product Description - Features -
Overview.........................................................
5. Product Description - Features -
Details.............................................................
6. Front Labels....................................................
7. Instruction Labels
( Back of Instrument).......................................
8. Preparation for use.........................................
9. Operating Instructions....................................
(1) Verifying Wiring Integrity............................
(2) Testing ELCB/RCD
(Protection device)....................................
(3) Using the Universal test Sockets...............
(4) Testing Appliance.......................................
(5) Calculating Power Consumption of
Appliance..................................................
(6) Calculating Insulation resistance of
Appliance..................................................
10. Very important features...................................
(1) Checking Circuit Breaker Integrity..............
(2) Finding Standing leakage
in an installation.........................................
11. Specications.................................................
12. Environmental.................................................
13. Cleaning.........................................................
14. Legal Matters & Intellectual Property...............
15. Checking and Changing the Fuse...................
16. Limited Warranty.............................................
17. Notes..............................................................
Page
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19-20
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22-23
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-1-
1. Safety Rules
CAUTION RISK OF ELECTRIC
SHOCK
This tester has been designed with your safety in
mind. However, no design can completely protect
against incorrect use. Electrical circuits can be
dangerous and/or lethal when lack of caution or poor
safety practices are used.
Do not carry out eld measurements on either the
power system grounding, during periods of forecast
lightning activity, in areas that encompass the station
being measured or of the power network connected
to the station being measured. In the event that
lightning occurs, stop all testing and isolate any
temporarily installed test spikes.
Preparations for testing of power system grounding
can leave personnel vulnerable to exposure caused
by faults at or fed from the system under test,
transferred potentials from remote test grounds, and
inadvertent line energisations.
While the probability of the occurrence of one of these
events is low, personnel safety will, nevertheless, be
enhanced by the following:
When working near high tension systems, rubber
gloves and shoes should be worn.
Work on clean, dry crushed rock or an insulating
blanket.
Avoid bare hand to hand contact between the tester
and extended test leads.
-2-
When using the tester with test leads, ensure that they
are safe and properly authorized. Always prepare any
test in advance and understand everything about it.
Disconnect the tester from any external circuit when
checking or changing the Fuse and/or batteries.
CAUTION READ THE MANUAL
Follow the instructions in the Manual for every
measurement. Read and understand the general
instructions before attempting to use this tester.
2. Safety Check
Before using the tester, check the condition of the test
leads, the fuse, and general appearance.
The leads must be free of cracks or any damages and
must be insulated as when they were new.
Fuse replacement is described later in this user's
manual.
Before replacing the fuse, always disconnect all leads
and then remove the cover to access the internal
circuitry.
When replacing the fuse, use only the type specied
(HRC fuse), and insert correctly into the fuse holder.
Always double check the lead connections before
making any measurements.
-3-
DON'T TOUCH
Don't touch exposed wiring, connections or other
"Live" parts of an electrical circuit. If in doubt, check
the circuit rst for voltage before touching it.
Do not use cracked of broken test leads.
THIS INSTRUMENT SHOULD ONLY BE USED BY
A COMPETENT, SUITABLY TRAINED PERSON.
REMEMBER
SAFETY IS NO ACCIDENT
CAUTION RISK OF ELECTRIC SHOCK
CAUTION READ THE MANUAL
3. General Description
The tester is multi purpose test tool enclosed in a
attractive rugged and convenient package which has
some unique features.
The current leakage of an appliance can be measured
while in-circuit as well as its current consumption.
The tester can check the mains wiring integrity and
report on its polarity condition by showing the results
on three bright neon lamps.
The user can cross-reference which neon light is lit
up or not to a condition table and quickly establish the
wiring polarity condition.
-4-
The tester also tests the tripping sensitivity of ELCBs /
RCDs or can be utilized as a fault nding tool in case
of standing leakage current.
In this case, the user can quickly nd which breaker
supplies the faulty circuit that causes the ELCB / RCD
to have a standing current leakage fault.
The tester has a universal fused test socket that can
be utilized to connect any test equipment that needs
to be connected to the mains or to the appliance
under test.
This is very useful in case recording the mains
voltage is needed or recording the appliance voltage
of a power consumption test.
The internal fuse is a HRC type.
For example, some of the applications to use the
Universal Test Sockets can be to connect a voltmeter
or a recorder, or to measure the voltage when doing
a power measurement, while the current coil can be
clipped around the ear.
The tester can be utilized to check appliances,
ascertain its leakage current or calculate its insulation
resistance or even measure the consumption
current and voltage input and, calculate its power
consumption.
The Appliance socket is protected by the same HRC
fuse as the universal test sockets.
-5-
4. Product Description - Features - Overview
INTERNAL HRC FUSE
APPLIANCE LEAKAGE CURRENT
helps calculating Insulation of
Appliance and help verifying if
Appliance add standing
leakage current onto your system.
COLOR CODED EARTH CURRENT
MEASUREMENT EAR.
EARTH CURRENT EAR,
to measure the Leakage
Current of the Appliance
under test and calculate
its Insulation Resistance.
Universal
Mains
Adaptor
uses 4mm
compatible
sockets.
LINE CURRENT EAR,
to measure the
Line Current
Consumption of the
Appliance under test.
Universal Adaptor
is Connected to the
Mains Connection
via a HRC Fuse
and is color coded.
TEST BUTTON.
Injects ILinto
earthing system
when pressed.
A, B, C
HIGH BRIGHT
NEON LAMPS
FOR WIRING
TABLE CROSS
REFERENCING
APPLIANCE LINE CURRENT
helps calculate Power of
Appliance and helps verify if
Appliance is within
specications.
Appliance socket.
Appliance under
test must be
plugged here.
COLOR CODED LINE CURRENT
MEASUREMENT EAR.
FUSED MAINS
ADAPTOR
EARTH LEAKAGE
TESTER
MAINS WIRING
POLARITY CHECK
Current Selection
Rotary Swich
ILON, IL
Flowing LED
indicates when
current is injected
into the earth
system. IL conrm
that current is
owing to Earth.
NEON LIGHTS
A, B, C
Cross REFERENCE.
To the Condition table.
MAINS CONNECTIONS
is established by using
a computer lead,
"IEC Lead".
WIRING POLARITY
CHECK CONDITION
can be cross-referenced
to this Condition Table.
APPLIANCE
TESTER
-6-
5. Product Description - Features Details
Mains Connector
The main connector of the tester is connected to the
power outlet by using a computer type lead, or also
sometimes called a IEC lead or a kettle lead. This is an
universal type lead and is supplied with the tester
for the country where the tester is sold.
Internal HRC Fuse
The tester is equipped with a High Rupture Capacity
fuse, of 10A/250V.
The fuse is connected to the Incoming Line wire, from
the wall socket and protect the entire circuitry, including
the universal test sockets and the appliance socket.
Wiring Conditions Test
An internal circuitry test for wiring condition and report
onto the neon lamps. Please note that a short circuit
between Neutral and Earth cannot be detected by this
circuitry.
Neon Lamps Reporting
These high bright neon lamps report the wiring
condition detected by the circuitry. Always refer to the
condition table to check that the wiring is correct or not.
ELCB / RCD Test
The circuitry of the tester has been designed to test
domestic leakage detecting circuit breakers. For this
reason, current from 10mA up to 35mA is generated.
This can also be utilized for fault nding standing
leakage faults after having checked the integrity of the
breaker itself.
-7-
Universal Test Sockets
These 4mm socket help you connect test equipment
to the mains or the appliance without complicated
wiring.
Appliance Socket
The protected appliance socket can supply up to 10A
maximum to the appliance under test
Current Line Coil
This coil is utilized to check the line current by clipping
the clamp meter around it.
Current Earth Coil
This coil is utilized to check the earth current by
clipping the peakage clamp meter around it.
6. Front Labels
-8-
Table of contents
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