Charge Amplifier (VM-1980/3)
- Compact 3 signal route charge amplifier
- By connecting with piezoelectric accelerometer, it can output acceleration waveform in voltage.
Features
- ■ Compact and light weight
- ■ Desk top or portable use
- ■ Usable as charge amplifier for vibration analysis system (wavestocker).
System composition
■ AC OUTPUT (±5 V at full scale) Waveform output to oscilloscope, stroboscope and data recorder etc.
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Specifications
| Item | Specification |
|---|---|
| Input signal | Piezoelectric accelerometer |
| Frequency range | 0.4 to 20 kHz |
| Charge sensitivity setting range | 0.01 to 999 pC / (m/s2) |
| Measurement range | 3.3 to 66000 m/s2 (for charge sensitivity 1.5 pC / (m/s2) *Subjected to change by charge sensitivity |
| Filter response | Low frequency cut-off : Through, 3 Hz, 10 Hz (-18 dB / Oct) High frequency cut-off : Through, 1 kHz, 10 kHz (-18 dB / Oct) |
| Calibration signal | 156 Hz, ± 2.5 V Sine output |
| Alarm indication | Over range : Red LED light-on (HOLD) Under range : Green LED on / off (1 second HOLD) |
| Power supply | DC12V (dedicated AC adapter) |
| Operational temperature / humidity range |
0 to +50 ﾟC / 20 to 80 %RH (non-condensing) |
| Size / Mass | 240 (W) x 150 (D) x 35 (H) mm / 0.6 kg |
Standard composition
| Item | Quantity | Notes |
|---|---|---|
| 3 channel Charge Amplifier | 1 | ― |
| Power Source Adapter | 1 | AC100 V 50 / 60 Hz 41 VA |
| Instruction Manual | 1 | Inspection certificate is attached on the last page |
Option
| Item | Notes |
|---|---|
| RS-232C Cable | RS-232C communication cable (sensitivity, range, HPF, LPH can be set up by PC) |
| Pin jack output cable 0.3 m | Single lead shield wire, Monaural pin jack-BNC |
| BNC output cable 1.5 m | BNC-BNC cable 1.5 m (RG-58AU) |
| Connection cable | For connection to 2 or more VM-1980 |
Outward dimensions
