ELECTRIC POWER TESTER
SPECIFICATION
BALLISTIC GALVANOMETER; COIL RESISTANCE: 500 ? TIME PERIOD: HIGH PERIOD OF OSCILLATION, TYPICALLY 10–12 SECONDS OR MORE
•SUSPENSION: PHOSPHOR-BRONZE STRIP OR WIRE, DESIGNED FOR LOW TORSION.
• MIRROR TYPE: CONCAVE MIRROR, OFTEN TO BE PAIRED WITH A LAMP AND SCALE.
•DAMPING: AIR DAMPING WITH EXTREMELY LOW ELECTROMAGNETIC DAMPING
• ZERO SHIFT: SHOULD NOT EXCEED 0.5 PERCENT OF FULL-SCALE READING AFTER A FULL-SCALE DEFLECTION.
•SCALE LINEARITY: THE SCALE BE LINEAR, ALLOWING DIRECT, ACCURATE, AND PRECISE MEASUREMENTS.
•ACCURACY: SENSITIVITY USUALLY REMAINS WITHIN 5 PERCENT OF THE STATED VALUE FOR STANDARD MODELS.
•CONSTRUCTION: MOVING COIL, USUALLY WITH A CORE OF NON CONDUCTING MATERIAL TO MINIMIZE DAMPING.
• CASE: ENCLOSED IN A BAKELITE CASE WITH LEVELLING SCREWS.
• MIRROR AND LAMP ARRANGEMENT: MIRROR REFLECTS A
SPOT ON A SCALE, TYPICALLY SET AT 1 METER, TO READ
DEFLECTIONS.
• POINTER SYSTEM: SOMETIMES A KNIFE EDGE POINTER IS
USED, BUT A MIRROR IS PREFERRED FOR HIGH SENSITIVITY.
• TERMINALS: BRASS TERMINALS WITH KNURLED NUTS.
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Tesca specialize in doing turnkey projects that is fully operable when it is handed over to the project authority. Starting from inception to application training, Tesca provides the services as ONE source solution. Working side by side with government authorities and people across the World, we help countries to perform better. We support countries grow their economies, strengthen their education and health systems and improve financial management. We do this by providing consultancy & training in environment safety, education, health strengthening.
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