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Summary of Contents for Besantek BST-LT05
- Page 1 BESANTEK BST-LTOS INSTRUCTION MANUAL DIGITAL LOOP/PSC TESTER 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com...
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Page 2: Table Of Contents
Index Page 1. Safety Precautions......2. Safety Notes........3. Specifications........4. Features..........5. Instrument Layout....... 6. Measurement........7-14 7. Fuse Replacement......8. Cleaning and Storage...... -
Page 3: Safety Precautions
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 Digital Loop / PSC Tester. 1.1 This Instrument must only be used and operated by a competent trained person and in strict accordance with the instructions. -
Page 4: Safety Notes
BESANTEK 1.5 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. - Page 5 BESANTEK 3. Sprcifications General ·c Temperature +13% System voltage 230V -15% System frequency 50Hz None Battery 150V ~ 260V system voltage When overheating,the " � " Over Temperature symbol will show on the LCD, and Protection the meter stop measuring.
- Page 6 Loop Impedance Nominal test Range Measuring range current at 0 Ω Accuracy external loop 20 Ω 0.00~19.99 Ω 23A / 40ms 200 Ω 0.0~199.9 Ω 2.3A / 40ms (2%rdg + 4dgt) 2000 Ω 0~1999 Ω 15mA / 400ms Prospective Short-circuit Current Nominal test Range Measuring range current at 0 Ω...
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Page 7: Features
4. Features ● Battery is not used. ● 3 ½ digit LCD (2000-count). ● Backlight function. ● 15mA loop measurement which will not trip ELCBs. ● Convenient and easier for users to measure the loop impedance directly without bypassing the wires. -
Page 8: Instrument Layout
BESANTEK 5. Instrument Layout (1) LCD (5) L (LINE) terminal (2) TEST button (6) N (NEUTRAL) terminal (3) Function rotary switch (7) E (EARTH) terminal (4) Backlight button... -
Page 9: Measurement
BESANTEK 6. Measurement (1) Test Lead Connection According to the below symbol to connect the line of system power. L for Phase Line N for Nature Line E for Earth Line (2) Wiring Check The system power lines are connected by right way, then the P-E &... - Page 10 BESANTEK (3) Voltage Measurement The System Power Voltage will be displayed on the screen whatever the scale range be selected before testing. ::---s: VL•PE JJnv L .. ILi If the voltage is less than 150V then the "Lo" Symbol will be displayed on the screen.
- Page 11 BESANTEK If the Voltage is more than 260V then "HI" Symbol will be displayed on the screen. :-<: ,r-- ,,..,. VL•PE 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com...
- Page 12 BESANTEK ( 4 ) Loop Impedance Measurement T here are 3 ranges ( 20.000, 200.on , 20000 ) for the loop impedance measurement. To make sure the wire connection is correct by the LEDs indication , then press the test button to measure the loop impedance and it will be displayed on the screen about 5 seconds.
- Page 13 BESANTEK oon, 200.on If the loo p im p edance is 1 then the ran g e must be selected , and the test result dis p la y like the below screen. ,... ---s 1nnn ,uu. u ooon, 20000...
- Page 14 BESANTEK (5) Prospective Short-circuit Current Measurement T here are 3 ranges (200.0A, 2000A, 20.00kA) for the loop impedance measurement. To make sure the wire connection is correct by the LEDs indication, then press the test button to measure the loop impedance and it will be displayed on the screen about 5 seconds.
- Page 15 BESANTEK If the PSC test result = 1 000A, then the 2000A range must be selected to test, and the test result display like the below screen. � ,p--- 1r1r1n IULILI A If the PSC test result= 2000A, then the 20.00KA range must be selected to test, and the test result display like the below screen.
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Page 16: Fuse Replacement
(6) Back Light Function To press the back light button to turn the back light LED on and off. When the meter is measuring the back light LED will be off to avoid the LED current effect, if the back light LED is on before testing. 7.
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