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Summary of Contents for Besantek BST-LT02
- Page 1 BESANTEK BST-LT02 DIGITAL MULTIPLE LOOP / PSC / EARTH TESTER INSTRUCTION MANUAL Test Equipment Depot - 800.517.8431 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com...
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Page 2: Table Of Contents
Index Page 1. Safety Precautions…………....2. Specifications……………………..3. Safety Notes…………………..... 4. Features……………....…… 5. Connections…………………..... 6. Instrument Layout and System Connections…...... 7. Functions………........ 8. Preparation for Measurement……..9. Loop / PSC / Earth testing…..... 11-12 10. Battery……………………....11. Calibration & Servicing….…....13-14... -
Page 3: Safety Precautions
1. Safety Precautions Electricity can cause severe injuries, even with low voltages or currents. Therefore, it is extremely important that you read the following information before using your Digital Psc-Loop-Earth Tester and 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. - Page 4 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.
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Page 5: Specifications
2. Specifications Loop impedance range 20/200/2000Ω (auto-range) L-E, L-N Loop impedance test current 12A at 230V / 50Hz Voltage measurement 80 to 250V AC/50Hz L-N, L-E Earth wire/path return 20/200/2000Ω (auto-range) resistance Neutral wire return resistance 20/200/2000Ω (auto-range) Line wire return resistance & 20/200/2000Ω... -
Page 6: Safety Notes
BESANTEK 3. 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. Observe the International Electrical Symbols listed below: Warning! Risk of Electric Shock A Caution! Refer to this manual before using the .C. -
Page 7: Features
BESANTEK 4. Features • 2 Lines x 16 Characters • Auto-ranging / Auto-off • One Push Button Operation • Very Low Consumption • Microprocessor Controlled • Better than 3% Accuracy (0.05-500) • Wiring Integrity Check (display+ LEDs) • Over Temperature Protection •... -
Page 8: Instrument Layout And System Connections
BESANTEK 6. Instrument Layout and System Connections DIGITAL LOOP IMPEDANCE • PSC • EARTH TEST MICROPROCESSOR CONTROLLEO DIGITAL LOOP / PSC / EARTH TESTER AUTO.OFF AUTO-RANGING .. PROCEED TO TEST. [ P..E • WIRING CORRECT • LIT p� e ON /TEST .. - Page 9 BESANTEK Fault Finding and Analyzing the Electrical Network Electrical Supply Point of Test, Distribution Socket Outlet = Voltage of the generator (supply transformer) (internal impedance of transformer= X-Form) = Impedance of the Line wire from the transformer, up to the test point (ZL displayed by Instrument also include X-Form).
- Page 10 = Impedance of the Neutral wire from the transformer, up to the test point. If this impedance is too high, check the connections of the Neutral wiring, check the quality of the line wiring and the switches or contacts in the Neutral circuit.
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Page 11: Functions
7. Functions The tester Measures: ● Line – Earth Voltage ● Line – Earth Loop Impedance. ● Prospective Short Circuit Current L– E. (This is the current which will flows between Line and Earth, should a short circuit be made between Line and Earth) ●... -
Page 12: Preparation For Measurement
8. Preparation for measurement Before testing Always check the following. ● System Voltage Your Digital Psc / Loop / Earth Tester is best intended to work with 230 Vac. However, if the voltage is lower than that, 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. -
Page 13: Loop / Psc / Earth Testing
BESANTEK 9. Loop / PSC / Earth testing Turn Instrument ON by pressing "ON I TEST" The L.C.D. display will come to the following Screen Digital Loop/ PSC I Tester PRESS "TEST' I ---- Pressing "ON / Test" now will start the test. T his... - Page 14 BESANTEK V-> LINE-EARTH 228.93V Z-> LINE-EARTH Scroll throu g h the results a g ain, if the 0.890 tester is not Z-> LINE-NEUTRAL connected to the circuit under test 0.430 or do a new test b y connectin g the PSC->LINE-NEUTRAL...
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Page 15: Battery
10. Battery Battery Replacement ● The Tester continuously monitors the battery voltage and indicates when the battery need to be replaced. ● The tester’s batteries are situated under the test. ● Disconnect the test leads from the instrument, remove the battery cover and the batteries. ●... - Page 16 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 abrasive or solvents. If the meter is not to used for periods of longer than 60 days, remove the batteries and store them separately.
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