MODEL 220 AC STRAIN GAGE CALIBRATOR
Description
The Model 220 AC Strain Gage Calibrator provides a precise sinusoidal signal of known frequency and amplitude to strain gage measurement systems for simulation of actual vibration signals. It is used for calibration of AC coupled amplifiers.
Specifications
| Bridge: | 120 ohms to 1K ohm |
| Bridge excitation: | Accepts 0.5V to 10V excitation, for 0.25V to 5.0V gage voltage |
| Controls: | Four-digit cal-resistor select thumb-wheel, 100 ohms to 999.9K ohms in 100 ohm steps with ±0.1% accuracy. Amplitude: screwdriver adjustable from 0.25V peak to 5V peak |
| Frequency: | Switch-selectable 1kHz or 10kHz |
| Connectors: | BNC to bridge, banana jacks to measure cal-resistor |
| Power: | Operates on two 9V batteries. Eveready type No.522 or equivalent |
| Mechancial: | 2.5″H x 4.5″W x 8.75″D |