Besantek BST-LT01 User manual


BST-LT01

  

INSTRUCTION MANUAL
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

Index
1. Safety Precautions............................
2. Specications ...................................
3. Safety Notes .....................................
4. Features ...........................................
5. Connections......................................
6. Instrument Layout .............................
7. What Does the Tester Measures.......
8. Functions ..........................................
9. Preparation for Measurement ...........
10. Loop / PSC / Load Testing ................
11. Battery Replacement ........................
12. Calibration and Servicing .................
13. Cleaning and Storage .......................
Page
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12

-1-
1. Safety Precautions
Electricity can cause severe injuries, even with low
voltage or current.
Therefore, it is extremely important that you read
the following Information before using your Electrical
Network Analyzer.
1.1 This Instrument must only be used and operated
by a competent trained person and in strict
accordance with the instructions. We will not
accept liability for any damage or injury caused
by misuse or non compliance with instructions
and safety procedures. This instrument injects a
high current into the earth.
1.2 This instrument is only intended for Single Phase
operation, 230Vac ±20V with the correct wiring
(Phase, Neutral and Earth ).
It must never be connected Phase to Phase,
damages could result.
When conducting a test, do not touch any
exposed metal parts or any conducting parts.
1.3 All RCCB, GFCI and ELCB in the circuit to test
must be by passed ONLY for the duration of the
test.
1.4 Never open the tester except for battery
replacement ( See Battery Replacement section ).

-2-
1.5 Before use, always inspect the tester and test
leads for any sign of abnormal condition 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 it to the nearest distributor for
service.
1.6 The tester has been designed with your safety
in mind. However, there is no design can
completely protect against incorrect use.
Electrical circuits can be dangerous and/or lethal
when a lack of caution or poor safety practice
is used. Use caution in the presence of voltage
above 24V as these pose a shock hazard.
1.7 Pay attention to cautions and warnings which will
inform you of potentially dangerous procedures.
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

-3-
2. Specications
Loop impedance range L-E 0.03-2000Ω (software ctrl)
Test currents in each loop 11.76A at 230V / 50Hz
Voltage measurement L-N 50 to 280V AC (Sine)
Load current for volt drop
(L-N) 16A (Calculation)
PSC current (L-N) max 6kA at 230Vac supply
Operating voltage 230V±20V at 50Hz Sine
Typical Accuracy
Loop impedance ±5%rdg ± 2dgt
PSC current ±12%rdg ± 5dgt
Voltage ±3%rdg ±1dgt
Operating-temperature
-humidity
-10°C to 40°C 80% Max.
relative humidity
Dimensions
(with housing front cover) 170(L) x 165(W) x 92(D)mm
Weight (battery included) Approx. 970g
Power source 1.5V (AA) x 8
Safety standard EN 61010-1 CAT III 300V
EN 61326-1
Accessories
Instruction manual
Test leads
Shoulder belt
Batteries


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3. Safety Notes

 
 
 

 


□

&  
 
 
-4-


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4. Features
 











5. Connections
&Q
 
 



6. Instrument Layout
 
  



CE
& 
 �
L

 

 
I
 




 

 
  
-6-


-
 

L
VL-N
N PS�

 

  



 








-8-
8. Functions
The tester measures :
●Line - Earth loop impedance.
●Line - Neutral AC voltage at 16A.
●Prospective short circuit current L-N.
(This is the current which will ow between Line
and Neutral. A short circuit should be made
between Line and Neutral).
●Transformer voltage VG = VL-N @0A
●Neutral wire impedance.
●Wiring integrity.
The tester reports :
●Low battery indication.
●Wiring condition.
●No line.
●Over temperature.
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com

-9-
9. Preparation for Measurement
Before testing always check the followings :
●System voltage
Your Electrical Network Analyzer is best intended to
work with 230 V AC. However, if the voltage is lower
than 230V, the test could still be done but accuracy
of the PSC could deteriorate due to the fact that the
current injected is lower than optimal. Your tester
can work on a wide range of voltage and compute
results, so that these changes will have a minimal
effect on the results.
●ELCB / RCCB / GFCI
It is necessary to bypass the ELCB / RCCB / GFCI
for the duration of the Earth / Loop / PSC test.
●Unplug all loads
In order not to affect the measurement, it is advised
to unplug all loads from the installation under test.
●Make a clear sketch of measurement to be able to
interpret results.
●Check leads before using tester
The leads quality and resistance is a factor to
inuence the accuracy of the results make sure
they are always in good conditions.




 
 



 


1-!


 




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

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11. Battery Replacement
●The tester continuously monitors the battery
voltage and in dictates when the battery needs
to be replaced.
●The tester's batteries are situated under the tester.
●Disconnect the test leads from the instrument and
remove the battery cover and the batteries.
●Replace with eight 1.5V AA pen light batteries and
observe correct polarity.
●Replace the battery cover.
12. Calibration & Servicing
Both calibration and servicing must be performed by
a competent trained and approved person. Contact
your nearest authorized distributor about Calibration
Certicate and servicing.
Before returning the instrument be sure that :
●the leads have been checked for continuity and
signs of damage.
●the batteries are in good condition.

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13. Cleaning & Storage
Periodically, you should wipe the case with a damp
cloth and detergent; do not use abrasives or solvents.
If the meter is not used for long periods or longer
than 60 days, remove the batteries and store them
separately.
Warning
To avoid electrical shock or damage to the meter,
do not get water inside the case.
Test Equipment Depot - 800.517.8431
99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com