| Display |
| Scaling: |
Customized to any scaling desired, from linear to specialized Cos Ø, square root distributions, with color applications for visual emphasis and to any desired engineering unit. |
| Specific accuracies |
| Basic Accuracy: |
±2% of full scale basic accuracy class. |
| Rectifier Meters: |
±2% @ 25°C calibrated to sine wave. |
| Power Factor: |
0.025% @ 0.5 PF , 0.007% @ 1.0 PF |
| Expanded Scale: |
3% of frequency span |
|
| Position of use: |
Vertical (scale) standard
or to specified angle or position |
| Full scale deflection angle: |
250°, except synchroscope is 360° |
| Full scale length: |
6.9 inches. |
| Movement: |
Proven, shock resistant Taut Band |
| Case: |
All switchboard instruments have drawn steel case |
| Cover: |
polycarbonate cover and window. |
| Terminal plate: |
phenol resin material. |
| Mounting studs: |
1/4” x 28 thread. |
| Terminal studs: |
10-32 thread. |
| Dielectric level: |
2500VAC for 1 minute between the electrical circuit and mounting
studs. |
| Overload rating: |
Voltmeter and potential coils-1.2 x rating (continuous).
AC Ammeters- 2 x rating (continuous), and 10 x rating for one second.
Current coils (other than ammeters) 1.5 x rating (continuous), and 10 x
rating for one second. |
| Response time: |
Approximately 3 seconds |
| General: |
| Operating Temp.: |
0 to 40°C (32 to 104°F) |
| Storage Temp: |
-10 to 50°C (14 to 50°F) |
| Extreme temperature range: |
-20°C to 65°C (-4 to 149°F)
Tropicalized or IP54 sealed units available |
| Relative Humidity: |
95% (non condensing) |
