Voltmeter ASTV (actb; astv)
Voltmeter ASTV (ACTB) - astatic voltmeter designed for laboratory measurements of voltage in AC circuits and similar devices to test the lower classes.
Accuracy class - 0.5.
Measurement range - 0-300V.
The limits of measurement - 0-150V-300V.
Structural features voltmeter ASTV (ACTB)
Voltmeters ASTV - instruments in which the measuring system is assembled by astatic scheme that reduces the effect of external magnetic fields up to allowable limits. The common axis of the device placed ASTV fastened between two identical parts are movable. Acting on them at the same time cause the magnetic field torques mutually opposite directions that and balance the system.
Operating conditions ASTV (ACTB)
Voltmeter ASTV (ACTB) under the terms of mechanical stress during operation applies to ordinary.
ASTV (ACTB) voltmeters are designed to operate at temperatures from +10 ° C to +35 ° C. The relative humidity for optimum performance ASTV voltmeter should be no more than 80% (at +30 º C).
Photos: ASTV (ACTB)