| Features | • High Temperature |
|---|---|
| Applications | • Well borehole logging (Wireline) |
QFA-125 Quartz Flexure Accelerometer Series
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The Jewell Instruments QFA-125 Series Accelerometers are state of the art quartz flexure technology that provides high accuracy, repeatability and stability even in the harshest of environments.
Additional information
Performance Specifications
Performance Specifications
Performance
| Acceleration Range (g maximum)1, 2 | ±30 |
| Scale Factor (mA/g)2 | 1.1 to 1.4 |
| Bias (mg, maximum @25 °C) | 20 |
| Axis Alignment (mRad, maximum @25 °C) | 1.5 |
| Threshold & Resolution (µg, maximum) | 10 |
| Bandwidth (Hz, minimum) | 300 |
| Scale Factor Temperature Sensitivity (PPM/°C, maximum) | |
| +25°C to +120°C | ±150 |
| Bias Temperature Sensitivity (µg/°C, maximum) | ±100 |
| Scale Factor Stability (1 month composite) | <250 PPM |
| Bias Stability (1 month composite) | <250µg |
| Noise (mgrms, maximum) (0Hz to 10kHz, maximum) | 3 |
Electrical
| Input Voltage (Vdc) | ±12 to ±18 |
| Input Current | ±13 mA maximum @ ±18 Vdc input |
| ±10 mA maximum @ ±15 Vdc input | |
| ±8 mA maximum @ ±12 Vdc input | |
| Output Impedance (Ω) | External Load Resistor Dependent |
Environmental
| Operational Temperature Range | -55 to +125°C |
| Vibration (sine, maximum) | 25 Hz to 500 Hz,25g |
| Vibration (random) (Rectification, maximum) | 50 Hz to 500 Hz, 100 ug/g2rms |
| Shock (g) | 1000, 0.5msec, ½ sine |
Notes:
1: Specifications apply and are characterized up to ±1g range. The accelerometer is capable of supplying acceleration information up to ±30g but at a reduced accuracy
2: Scale factor shown in mA/g as a standard. If you require scale factor in volts/g, please specify voltage range when ordering.
3: Voltage output via customer supplied load resistor
*Specifications subject to change without notice on account of continued product development.
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