Besantek BST-IT30 User manual
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Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
Index
1. Safety Precautions............................
2. Specications....................................
3. Instrument Layout..............................
4. Preparation for Measurement............
5. Functions...........................................
6. Insulation Testing...............................
7. Insulation Resistance Testing...........
8. Maintance and Cleaning Method.......
Page
1-2
3-4
5
6
7-8
9
10
11
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1. Safety Precautions
Electricity can be dangerous - handle it with care.
Carefully read the following information before using
the tester.
1.1 The company will not accept liability for any damage
or injury caused by misuse or non-compliance with
instructions and safety procedures.
This instrument must be used and operated only by a
competent trained person and in strict accordance with the
instructions.
1.2 This instrument must not be used on live circuits. Ensure
all circuits are de-energised before testing. See paragraph
1.6 fomur details of built-in warning features should you be
connected to a live system.
1.3 Never open the tester except for battery replacement. (see
battery replacement section).
1.4 Before use, always inspect the tester and test leads for any
sign of abnormality or damage. If any abnormal conditions
exist (broken test leads, cracked case, display faulty etc...)
do not attempt to take any measurement or use the tester.
Return the tester to your nearest distributor for service.
1.5 No design can completely protect against incorrect use.
Exercise caution when using electricity.
However, the tester has been designed with your safety in
mind.
1.6 The tester has a live circuit warning beeper. If it is
connected to a live circuit of more than 500V, a rapid
pulsating beep will be heard and, in addition, the tester
will display a warning message.
Should this happen, DO NOT proceed to test and
immediately. Depress "Test" again to conrm. (hold
depressed the test button). If live warning presist,
disconnect the instrument from the circuit.
°
-3-
2. Specications
2.1 Display
2 Lines x 20 characters large L.C.D.
Bar graph shows test voltage-rise and decay.
Test duration is indicated in seconds.
Warning of external voltage presence.
Auto-hold when test stopped and circuit discharged.
Low battery indication.
2.2 Insulation
Both models have four insulation test voltages and are
autoranging. They auto-discharge the circuit after test.
1- 500Vdc - 25000MΩ
2- 1000Vdc - 50000MΩ
3- 2500Vdc - 125000MΩ
4- 5000Vdc - 250000MΩ
Test voltage 500Vdc 1kVdc 2.5kVdc 5kVdc
Measuring 30GΩ 60GΩ 125GΩ 250GΩ
range Autoranging
Accuracy ±5%±2 digits
2.3 Supply
Power 8 x 1.5V "C" size alkaline battery
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<E
=
1
CABLE CORE
-4-
3. Instrument Layout
(€
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�h•
-6-
4. Preparation for Measurement
Check the following for damages and status.
4.1 Display
Do not use the instrument if the display looks
abnormal.
4.2 Keypad
Visually check the keypad.
A damaged keypad will cause the instrument to
malfunction.
4.3 Test leads
Verify test leads are free of cracks and check
continuity.
Faulty test leads will cause inaccurate readings.
4.4 Batteries
The instrument will operates optimally with
alkaline batteries.
5. Functions
8
8
-7-
TEST
START, STOP
START/STOP
5.6
START/STOP
START' STOP
-8-
8
[
TEST
START /STOP
-9-
-
➔
-11-
8. Maintance and Cleaning Method
8.1 Battery replacement
Your batteries are situated under the tester-to
replace; switch "OFF" the instrument.
Unplug the test leads from the tester.
Unscrew the screw situated at the bottom of
the battery cover. Slide the battery cover off the
bottom of the tester.
Remove the at batteries from the batteries
holder.
Observing battery polarity, replace with new
alkaline batteries. Replace the battery cover.
8.2 Cleaning and storage
WARNING
To avoid electrical shock or damage to the
meter, do not get water inside the case.
Periodically wipe the case with a damp cloth
and detergent; do not use abrasives or solvents.
If the meter is not to be used for periods of
longer than 60 days, remove the batteries and
store them separately.
8.3 Servicing
There are no customer-serviceable parts in
this instrument. Should the instrument require
servicing, please, return-it without batteries
but complete with test leads to your nearest
distributor.
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
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