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Besantek BST-LT05, Instruction Manual, Page: 16 / 16

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Besantek BST-LT05 Instruction Manual Download Page 16

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(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. Fuse Replacement

If the fuse is blown, open the case, then replace with

the same specification fuse.

Fuse : 6.3A / 500V x 2

8. Cleaning and Storage

Periodically, you should wipe the case with a damp

cloth and detergent; do not use abrasives or solvents.

Warning

To avoid electrical shock or damage to the meter, 

do not get water inside the case. 

99 Washington Street 
Melrose, MA 02176 

Phone

 781-665-

1400

Toll Free 1-800-517-8431

Visit us at www.T

estEquipmentDepot.com

Summary of Contents for BST-LT05

Page 1: ...BESANTEK BST LTOS DIGITALLOOP PSC TESTER INSTRUCTION MANUAL 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com ...

Page 2: ...Index 1 Safety Precautions 2 Safety Notes 3 Specifications 4 Features 5 Instrument Layout 6 Measurement 7 Fuse Replacement 8 Cleaning and Storage Page 1 2 2 3 4 5 6 7 7 14 14 14 ...

Page 3: ...igh current into the earth 1 2 This instrument is only intended for Single Phase operation 230Vac 13 15 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 The non tripping ELCB function is only available at 2000Ω range the testing current is 15mA at th...

Page 4: ... 24V as these pose a shock hazard 1 6 Pay attention to cautions and warnings which will inform you of potentially dangerous procedures 1 Safety Notes Rated environmental conditions 1 Indoor use 2 Installation Category Ill 3 Pollution degree 2 4 Altitude up to 2000 meters 5 Relative humidity 80 max 6 Ambient temperature 0 C to 40 C Observe the International Electrical Symbols listed below IDI Doubl...

Page 5: ...V 15 50Hz 150V 260V When overheating the symbol will show on the LCD and the meter stop measuring P E LEDs illuminate when the wiring polarity of circuit P N under test is correct LED is light when P and N N E are reversed or the Earth is not connected Loop impedance 20000 range measurement is carried out with low test current 15mA The current will not cause tripping out for ELCBs 3 ...

Page 6: ... 3A 40ms 2000 Ω 0 1999 Ω 15mA 400ms Prospective Short circuit Current Range Measuring range Nominal test current at 0 Ω external loop Accuracy 20 KA 0 00 4 00 KA 23A 40ms Consider accuracy of loop impedance 2000 A 0 1999 A 2 3A 40ms 200 A 0 0 199 9 A 2 3A 40ms Voltage Display Measuring range Accuracy Remark 150 260 V 2 rdg 4dgt at 0 Ω external loop ...

Page 7: ... the loop impedance directly without bypassing the wires Wiring check function Over temperature protection Over voltage protection Built in voltmeter Built in earth tester Built in loop psc tester Safety standard EN 61010 1 CAT III 300V EN 61326 1 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com ...

Page 8: ...BESANTEK 5 Instrument Layout 1 2 3 4 1 LCD 5 L LINE terminal 2 TEST button 6 N NEUTRAL terminal 3 Function rotary switch 7 E EARTH terminal 4 Backlight button 6 ...

Page 9: ... 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 P N LEDs must be ON and N E LED must be OFF If there are the wrong connection P N reverse connection or E does not be connected then the N E LED will be ON 7 ...

Page 10: ...ent 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 VL PE I LO 8 ...

Page 11: ... the Voltage is more than 260V then HI Symbol will be displayed on the screen r VL PE H II 9 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com ...

Page 12: ... then press the test button to measure the loop impedance and it will be displayed on the screen about 5 seconds If press the Test button and turn to lock then the measurement result will be displayed on the screen until the test button is unlocked If the loop impedance is 1on then the 20 oon range must be selected and the test result display like the below screen 1nnn IU UU 10 ...

Page 13: ...on then the 200 on range must be selected and the test result display like the below screen s 1nnn uu u I If the loop impedance is 1 ooon then the 20000 range must be selected and the test result display like the below screen s 1nnn uuu 11 ...

Page 14: ...ion then press the test button to measure the loop impedance and it will be displayed on the screen about 5 seconds If press the Test button and turn to lock then the measurement result will be displayed on the screen until the test button is unlocked If the PSC test result 100A then the 200 0A range must be selected to test and the test result display like the below screen 1r1r1n IULI LI A I 12 ...

Page 15: ... 2000A range must be selected to test and the test result display like the below screen p 1r1r1n IULILIA 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 p inn LILlkA 13 ...

Page 16: ...cement If the fuse is blown open the case then replace with the same specification fuse Fuse 6 3A 500V x 2 8 Cleaning and Storage Periodically you should wipe the case with a damp cloth and detergent do not use abrasives or solvents Warning To avoid electrical shock or damage to the meter do not get water inside the case 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 ...

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