90 Degree Indicating Analog Frequency Meter Vertical Installation Mounting
1. Application:
The moving coil, rectifier meters, WD 48/72/96/110/80 housed in molded polycarbonate cases are suitable for the measurement of AC currents and voltages. Moving coil rectifier instruments measure average values and are calibrated to indicate RMS values, assuming a sinusoidal waveform for frequencies from 40 to 10000 Hz (AC current for frequency range of 40 to 1000 Hz and AC voltage for frequency range of 40 to 1000 Hz. These instruments offer several advantages in switchboards and generating set panels. A number of meters can be mounted in a panel cut-out (mosaic mounting). Front glass, bezel & dial can easily be replaced.
2. Technical Parameters:
| Item | Technical Data | Standards |
| Technical Standard | GB/T7676-1998 | IEC60092-50 |
| Environmental Standard | GB8355-1987 | IEC92-504-74 |
| Safety Standard | GB4793-20 | IEC61010 |
| Working Temperature | -40-65℃ | |
| Temperature Infulence | -13-33℃, 100% comply with accuracy class | |
| Indicating Angle | 240°-270º (Synchroscope meter: 360º) | |
| Color of Shell | Black/white,board frame, terminal plate: black | |
| Color of Dial Plate | Black/white(other colors are available) | |
| Mounting | Vertical Installation | |
| Dimension | 110*110mm, 80*80mm | |
| 96*96mm, 72*72mm, 48*48mm | |
| Overshoot | Less than 20% when scale reaches to 2/3 | |
| Insulation Withstand | Circuit& shell: AC2600V/1 min(Water area) | |
| Vibration Resistance | 24.5m/s2 | |
| Impact Resistance | 147m/s2 | |
| Material | Shell/terminal board: ABS; Cover: Transparent Glass |
3. Main Features:
1). Usage: Marine application
2). Indicating Angle:90°
3). Measurement: Frequency in power system
4). Measuring Range:45-55Hz, 55-65Hz, 45-65Hz,350-450Hz
5). Connection Way: 100V, 220V,380V,400V,440V,690V;
6). Mounting: Vertical installation;
7). Dimension(mm): 72*72mm
8). Hole Size: 68*68mm
4. Typical Wiring Diagram:

5. Remarks:
1. With transducing 4-20mA output, accuracy class: 1%;
2. Out of specification: Mark red or Red pointer, pls specify;
3. Black/black color are both workable, and also inner illumination.