The Wilcoxon Sensing Technologies HT787A is a high-temperature accelerometer designed for demanding operational environments. Featuring extended range components for long-lasting performance and manufactured in an ISO 9001 facility, this accelerometer offers reliable operation up to 150C. It is suitable for applications requiring accurate vibration measurement in elevated temperature conditions.
| Specification | Value |
|---|---|
| Model | HT787A |
| Sensitivity, 5%, 25C | 100 mV/g |
| Acceleration range, VDC > 25 V | 80 g peak |
| Amplitude nonlinearity | 1% |
| Frequency response: 10% | 1.0 - 5,000 Hz |
| Frequency response: 3 dB | 0.5 - 10,000 Hz |
| Resonance frequency, nominal | 22 kHz |
| Transverse sensitivity, max | 5% of axial |
| Temperature response: 25C | 10% |
| Temperature response: +150C | +15% |
| Power requirement: Voltage source | 18 - 30 VDC |
| Power requirement: Current regulating diode | 2 - 10 mA |
| Electrical noise, equiv. g: Broadband 2.5 Hz to 25 kHz (25C) | 700 g |
| Electrical noise, equiv. g: Broadband 2.5 Hz to 25 kHz (150C) | 1,100 g |
| Electrical noise, equiv. g: Spectral 10 Hz (25C) | 10 g/Hz |
| Electrical noise, equiv. g: Spectral 10 Hz (150C) | 14 g/Hz |
| Electrical noise, equiv. g: Spectral 100 Hz (25C) | 5 g/Hz |
| Electrical noise, equiv. g: Spectral 100 Hz (150C) | 7 g/Hz |
| Electrical noise, equiv. g: Spectral 1,000 Hz (25C) | 5 g/Hz |
| Electrical noise, equiv. g: Spectral 1,000 Hz (150C) | 7 g/Hz |
| Output impedance, max | 100 |
| Bias output voltage: +25C | 13 VDC |
| Bias output voltage: +150C | 12 VDC |
| Grounding | Case isolated, internally shielded |
| Temperature range | 50 to +150C |
| Vibration limit | 500 g peak |
| Shock limit | 5,000 g peak |
| Electromagnetic sensitivity, equiv. g, max | 70 g/gauss |
| Base strain sensitivity, max | 0.0002 g/strain |
| Sensing element design | PZT, shear |
| Weight | 145 grams |
| Mounting | 1/4-28 captive screw |
| Output connector | 2 pin, MIL-5015 style |
| Recommended cabling | J9F / J9T2A |
| Connections: Pin A | Power/Signal |
| Connections: Pin B | Ground |
| Connections: Shell | Common |