Vibrating Reed Type


VIBRATING REED TYPE
Vibrating reed Frequency Meter consists of Steel Reeds which are in the field of an electro-magnet, and vibrate in resonance with the energizing A.C. of this electromagnet. These are manufactured having 13 Reeds. Only the individual Reed, natural frequency of which corresponds with the frequency of the A.C. supply, will vibrate at full amplitude indicating the correct frequency on the dial. When two reeds show deflection of the same amplitude the mean between the two gives the correct frequency.

SPECIFICATIONS
Size Available
:
SFR-72.SFR-96, SFR-144 & SFRD-144
Voltage Rating
:
SFR-96, SFR-144; 115; 230; 420V.( Triple Range )
 
:
SFR-72.SFRD-144 ( Single Range ) either 115 or 230 or 420 Volts.
Test Voltage
:
2000V, AC for 1 minute.
Insulation Resistance
:
More than 20MΩ at 500V DC.
Casing
:
ABS white with narrow black ring.
Accuracy
:
± 0.5 Hz as per I.S.S. 1248-84, BSS 89-81
Ranges
:
A. 45-50-55 Hz
 
B. 47-50-53 Hz
 
C. 55-60-65 Hz

Indicating Pointer type Frequency Meter is designed for continuously traceable measurement of frequency in laboratory, research rooms, Schools, Production lines etc. One of the speciality in the design of this instrument is the application of a frequency-to-D.C. Current transducer to a high sensitivity moving coil type indicator. Accurate, quick frequency measurements are attained with this instrument without any noticeable influence of line voltage fluctuation or waveform distortion. The legible wide scale is graduated uniformly.

Model
Size (mm)
RANGES
Hz
V
SFR72
72 X 72
47-53, 45-55, 55-65
110, 230, 440 (Anyone)
SFR96
96 X 96
47-53, 45-55, 55-65
110/230/440
SFR144
144 X 144
47-53, 45-55, 55-65
110/230/440
SFR144D
144 X 144
47-53, 45-55, 55-65
110,230,440 (Anyone)

 

Moving Iron AC Panel
Moving Coil DC Panel
Portable Meters
Current Transformers
Ohms Meter
Shunts & Miniature Shunts.
Cell Testers.
Frequency Meters.
Vibrating Reed Type
SFR72 [ 72x 72 mm]
SFR96 [ 96x96mm]
SFR144 [144x144mm]
SFR144 D [Double Scale]
 
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