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Summary of Contents for Besantek BST-IT26
- Page 1 BESANTEK BST-IT26 ANALOGUE INSULATION-CONTINUITY and VOLTAGE METER INSTRUCTION MANUAL...
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Page 2: Table Of Contents
Index Page 1. Safety Precautions......2. Safety Notes........3. Features..........4. Connections........5. Specifications........6. Why Test is Necessary...... 7. Instrument Layout......8. LID Sticker - Simplified Instructions... 9. Preparation for Measurement.... 10. Functions........... 10-16 11. Battery & Fuse Replacement.... 12. -
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 analog insulation 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 1.5 Never replace the protective fuse with any other than the specified or approved equivalent. 1.6 Your analog insulation tester has been designed with your safety in mind. However, 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.
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Page 5: Safety Notes
BESANTEK 2. Safety Notes Rated environmental condition (1) Indoor use. (2) Installation Category Ill. (3) Pollution Degree 2. (4) Altitude up to 2000m. ri=i7 Meter is protected throughout by double insulation or reinforced insulation. & Warning ! risk of electric shock. -
Page 6: Connections
BESANTEK • 1 mA test current on insulation test at nominal voltage. • Automatic discharge of capacitance and inductive circuit off charge stored in the circuit under test. • Live Warning and display of external voltage presence. Fuse, air gap, crowbar and overload protected. -
Page 7: Specifications
5. Specifications INSULATION Test Voltage 250Vdc 500Vdc 1000Vdc +10%-0% +10%-0% +10%-0% Mirror scale 100MΩ 200MΩ 400MΩ Mid Scale 1MΩ 2MΩ 4MΩ Scale Multiplier x1/2 Accuracy ±5% Output short-circuit current ≥1.0mA Regulated output voltage (up to 1mA current) 263.5V 525V 1052V CONTINUITY Low Ω... -
Page 8: Why Test Is Necessary
6. Why Test is Necessary INSULATION Every electrical apparatus and installation need to be safe for the user and for the equipment itself. Electrical conductors of electricity need to be insulated from each other, so that they do not create electrical hazard or unnecessary consumption. -
Page 9: Instrument Layout
BESANTEK 7. Instrument Layout ( 1 ) (1) Test Button Switch (2) Function Selector (3) Battery OK indicator (4) Mirror Scale (5) Live Circuit Warning Light ( 6) Test Leads and Fuse Zeroing Knob... -
Page 10: Lid Sticker - Simplified Instructions
BESANTEK... -
Page 11: Preparation For Measurement
9. Preparation for Measurement Before testing Always check the following. At Power "ON", check that Bat. OK led lit. and check that there is no visual damage to the Instrument or test leads. Check the test Leads continuity : (1) Connect the leads to the Instrument. (2) Zero the test leads while on the 3 ohm range. -
Page 12: Functions
BESANTEK 10.Functions 10.1 Battery Check Turn the function selector to Batt. Check. This function has a load which draw about 205mA when test is performed, and therefore it is doing a worst case battery test. Then, press the test button, the pointer should be in the Bat. - Page 13 10.3 AC Warning The AC warning buzzer will beep continuously when AC voltage is higher than 20Vac on the test probes and the test button is Not pressed. The neon light "circuit live" will lit when the voltage on the test probes is higher than 65Vdc and the test button is not pressed.
- Page 14 BESANTEK soon 10.5 Low Ohms Measurement O - Always check for voltage a.umtv Q�,OiW before testing and measuring on a circuit. This instrument is intended for measuring Low and Insulation resistance on un-energized circuits only. Use the procedure explained at points 7.2, 7.3, 7.4.
- Page 15 BESANTEK 10.6 Low Ohms Measurement O - 30 Always check for voltage a.umtv Q�,OiW before testing and measuring on a circuit. This instrument is intended for measuring Low 0 and Insulation resistance on un-energized circuits only. Use the procedure explained at points 7.2, 7.3, 7.4.
- Page 16 BESANTEK 10.7 Insulation Resistance Measurement@ 250Vdc Always check for voltage before testing and measuring on a circuit. This instrument is £ intended for measuring Low and Insulation resistance on un-energized circuits only. ��� Use the procedure explained C<INllN�"':_.,Q_ at points 7.2, 7.3, 7.4.
- Page 17 BESANTEK 10.8 Insulation Resistance Measurement @ 500Vdc Always check for voltage a.umtv ���,� Q�,OiW before testing and measuring vo.n, ..� "" ::i- � on a circuit. This instrument is intended for measuring Lown lll!!lll-�J t- � and Insulation resistance on ·...
- Page 18 BESANTEK 10.9 Insulation Resistance Measurement@ 1000Vdc Always check for voltage a.umtv Q�,OiW before testing and measuring on a circuit. This instrument is intended for measuring Low · '- and Insulation resistance on un-energized circuits only. · · \ 1• 1 , --�...
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Page 19: Battery & Fuse Replacement
11. Battery & Fuse Replacement 11.1 Battery Replacement Your Analog insulation tester's battery is situated under the tester. The Bat. OK will not lit when battery need to be replaced. Disconnect the test leads from the Instrument, remove the battery cover and the batteries. Replace with eight 1.5V R6 or L6 batteries, taking care to observe the correct polarity. - Page 20 CAT IV - Is for measurements performed at the source of the low-voltage installation. CAT III - Is for measurements performed in the building Installation. CAT II - Is for measurements performed on circuits directly connected to the low-voltage installation. CAT I - Is for measurements performed on circuits not directly connected to mains.
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