Additional Information
| Weight | 32 oz |
|---|---|
| Dimensions | 3.5 × 5 × 8.4 in |
The model 781 is a precision, two-channel bench-top signal conditioner for use with all Jewell miniature tilt sensors. Powerful electronics generate balanced AC sensor excitation for up to two tilt channels (X and Y), then amplify, rectify and filter sensor response to produce a high-level DC output signal. Output is ±8 VDC single-ended (±16 VDC differential).
Units conveniently come with two switchable gain and filter settings (high/low; on/off) for added signal processing flexibility. The 781 also includes an amplifier for one LM35 temperature sensor and will drive tilt and temperature signals over 1000m cable lengths. All units include calibration when ordered with Jewell Instruments miniature tilt sensors. Rugged and reliable, the 781 is an ideal choice for any laboratory application.
Performance Specifications
| Input Channels | 2 Tilt Channel (X and Y), 1 LM35 Temperature Sensor | |||
| Output Signal | ±8 VDC Single-ended ±16 VDC differential |
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| Gain Settings | Two switchable gains, 10:1 ratio | |||
| Standard Calibration | Sensor Type | High-Gain | Low-Gain | Range |
| 755 Series 756 Series | 0.1 µradian/mV 0.1°/V | 1.0 µradian/mV 1.0°/V | ±8000µradian ±8.0° |
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| Output Filter | Filter “On” = 7.5 sec Filter “Off” = 0.05 sec1 Roll-off = 6 dB/octave |
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| Temperature Output | 0.1°C/mV (single-ended) | |||
| Output Impedance | 270Ω | |||
| Power Requirements | ±11 to ±15 VDC @ 25mA and -25 mA, 250 mV ripple max., reverse polarity protected | |||
| Connections | Dual screw-terminal barrier strips on the rear panel | |||
| Environmental | Operation: -25° to +70° C Storage: -30° to +100° C 0-90% humidity non-condensing |
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| Materials | Painted Aluminum | |||
| Accessories | 1m cable included | |||
*Specifications subject to change without notice on account of continued product development
Downloads
| Datasheet |
| Outline Drawing |
| User Manual |
