Analog Meters

Moving Iron Instruments

Ammeters and Voltmeters for AC applications

Sizes	48mm Sq.	72mm Sq.	96mm Sq.	144mm Sq.	110mm Round Flush	100X80mm
Accuracy	2.5	1.5	1.5	1.0	1.0	2.0

Ranges:	a) Ammeter: 0-0. 1A to 0-100A* b) Voltmeter: 0-15V to 0-600V.
Note:	CT operated Ammeters with basic 5A or 1A are available for higher ranges. PT operated Voltmeters with secondary 110V are available for higher ranges.
*Max. Current rating for 48mm Sq. Meter is 0-15A only and 100X80 mm is 30A only.
Suppressed Scale Ammeter with 6 Times Basic Current is available.

Moving Coil Instruments

Ammeters and Voltmeters for DC applications

Sizes	48mm Sq.	72mm Sq.	96mm Sq.	144mm Sq.	110mm Round Flush	100X80mm
Accuracy	2.5	1.5	1.5	1.0	1.0	2.0

Ranges:	a) Ammeter: 0-50 µA to 0-30A* b) Voltmeter: 0-50mV to 0-600V.
Note:	Shunt operated Ammeter with 75mV drop available for current above 30A. External series resistances are provided for voltage above 600V.
*Max. Current rating for 48mm Sq. Meter is 0-10A only

Moving Coil Instruments with Rectifier

Ammeters and Voltmeters for AC applications

Sizes	48mm Sq.	72mm Sq.	96mm Sq.	144mm Sq.	110mm Round Flush	100X80mm
Accuracy	2.5	1.5	1.5	1.0	1.0	2.0

Ranges:	a) Ammeter: 0-100ÂµA to 0-30A* b) Voltmeter: 0-5mV to 0-600V.
Note:	CT operated Ammeters with basic 5A or 1A are available for higher ranges. PT operated Voltmeters with secondary 110V are available for higher ranges.
External transducer for Ammeter above 0-0.5A for 48mm and 72mm Sq. meter

Moving Coil Instruments with Suppressed Zero

Sizes	48mm Sq.	72mm Sq.	96mm Sq.	144mm Sq.	110mm Round Flush	100X80mm
Accuracy	2.5	1.5	1.5	1.0	1.0	2.0

Ranges:

0-100/120V, 0-180/240V, 0-360/440V.

Frequency Meters

Pointer type

Sizes	48mm Sq.	72mm Sq.	96mm Sq.	144mm Sq.
Accuracy	1.0	1.0	1	1

Voltage:	110V or 230V or 440V (Â±10%)
Frequency:	45-55Hz, 45-65Hz, 55-65Hz, 47-53Hz,57-63Hz, 360-440Hz,
External transducer for 48mm Sq. Meter.

Reeds Type

Sizes	72mm Sq.	96mm Sq.	144mm Sq.
Accuracy	1.0	1.0	1.0

Voltage:	110V or 230V or 440V (Â±10%)
Frequency:	45-55Hz, 47-53Hz, 55-65Hz, 57-63Hz.

Power Meters

Moving Coil Type

Wattmeters with external transducer for single phase

Sizes	72mm Sq.	96mm Sq.	144mm Sq.
Accuracy Class	1.5	1.5	1

Voltage:	110V or 230V or 440V Current: …./1A or …./5A
CT & PT may be used for higher Ranges

Wattmeters and Varmeters with external/internal transducer* For 3 phase 3 wire or 4 wire (Balanced and Unbalanced load)

Sizes	72mm Sq.	96mm Sq.	144mm Sq.
Accuracy Class	1.5	1.5	1.5

Voltage:	110V or 230V or 440V Current: …./1A or …./5A
CT & PT may be used for higher Ranges

Power Factor Meter with external/internal transducer*
For single phase and for 3 phase 3 wire or 4 wire (Balanced load)

Sizes	72mm Sq.	96mm Sq.	144mm Sq.
Accuracy	2.5	2.5	2.5

Voltage:	110V or 230V or 440V Current: …./1A or …./5A
Cos:	Lag 0.5-1-0.5 lead or lag 0.3-1-0.7lead or 0.4-1-0.4 lead
CT & PT may be used for Higher Ranges
*90 & 240 scale available.

Electrodynamo Type

Wattmeter, Varmeter and KVA Meter for single Phase And 3 phase 3 wires or 4 wire (Balanced and Unbalanced load)

Sizes	96mm Sq.	144mm Sq.
Accuracy	1.5	1.5

Voltage:	110V or 230V or 440V Current: …./1A or …./5A
Cos:	Lag 0.5-1-0.5 lead or lag 0.3-1-0.7lead or 0.4-1-0.4 lead
CT & PT may be used for Higher Ranges

Power Factor Meter for Single Phase and 3 phase 3 wire or 4 wire (Balanced and Unbalanced load)

Sizes	96mm Sq.	144mm Sq.
Accuracy	2.5	2.5

Voltage:	110V or 230V or 440V Current: …./1A or …./5A
Cos:	Lag 0.5-1-0.5 lead
CT & PT may be used for Higher Ranges

Sychronising Meters

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