FREQUENCY METERS

REED TYPE

POINTER TYPE

Beemet Frequencey meters are used to measure the applied frequency. They come as Pointer Type with built in Trasducer and Vibrating Reed Type.

Salient Features

• Vibrating Reed Type Frequency meters indicate the supply frequency by means of individual reeds, when
    rated voltage+ 20% is applied across the terminals of the meter, the particular reed, whose natural
    frequency of vibration coincides with the supply frequency, vibrates with full amplitude. In case the supply
    frequency falls midway between two reeds both the reeds vibrate, at reduced amplitude. The amplitude
    of vibration at the tip of reeds is high enough for a distint indication.

• The Pointer Type Frequency Meter has a clear, well defined scale marking at 90 degree angle. The pointer
indicates the applied frequency when voltage is applied across the terminals of the meter.

General Specifications

Accuracy	±1.5 / 2.0 of FSD
Measurable Quantities	AC and DC Voltage or Current
Pointer deflection	0 - 90º
Frequency	50/60Hz
Sensitivity	1000Ω/V (Voltmeter); 2000Ω/V (ammeter)
Overload Capacity	According to IS: 1248 / IEC 51
Short duration for voltmeter	2 times for 5s: 1 overload 2 times for 0.5s: 9 overloads
Short duration for ammeter	10 times for 5s: 1 overload 10 times for 0.5s: 9 overloads
Continiously	1.2 times rated voltage or current
Operating Temperature	-10 to 55°C
Storage Temperature	-25 to 65°C
Relative Humidity	< 75% annaul average, non-condensing