Description :
Double voltmeters are Moving Iron Instruments. These Instruments are protected from damage or breakage under adverse condition due to its spring loaded jewel & pivot system. And are free from external magnetic field influences because of magnetic shielding & are ”CE’ certified. These instruments have a very efficient oil damping system, which gives almost a deadbeat movement to the pointer, without irksome oscillation. The movement is light yet sturdy and has a large torque to weight ratio which assures long life to instruments.Readability starts from 10 to 15 degree approximately.
Features :
- SCALE : Non – Linear
- SCALE COLOUR : Special colour scales & marks for different ranges ( On request )
- HOUSING : Engineering plastic.
Electrical Specifications :
TYPE :
Double Voltmeter ( Moving Iron )
OPERATING VOLTAGE :
15V to 600V.
BURDEN ( of one Voltmeter) :
15V tO 30V - <100mA, SOV to 100V -<30mA,
110V to 200V - <15mA, 200V to 600V - < 7.5mA.
FREQUENCY :
45Hz - 65Hz. ( 400Hz. on request)
ACCURACY :
Class 1.0% & 1.5%
INSULATION RESISTANCE :
Greater then 20MU at SOOV DC
DIELECTRIC TEST :
2kV RMS for 1 minute
OVERLOAD CONTINUOUS :
1.2 times
OVERLOAD SHORT TIME :
2 times V
OPERATING TEMP. :
-10°C to 55°C
STORAGE TEMP. :
-20°C to 70°C
CONFORMS TO
I.S. 1248 / I.E.C. 60051 ( Part 2)
Mechanical Specifications :
Ordering Information :
1)Type 2) Model 3) Operating Voltage & PTR for Double Voltmeter.