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Jewell Instruments
D820 Shallow Water Tiltmeter Series with Digital Output

D820 Shallow Water Tiltmeter Series with Digital Output

Product catalog summary

Overview: The Model D820 Shallow Water Digital Tiltmeter by Jewell Instruments is a high-precision submersible device designed for use in both fresh and saltwater environments. It features RS232 or RS422 digital output and utilizes an absolute gravity-referenced electrolytic sensor for superior measurement accuracy with minimal long-term drift. The device is suitable for applications such as structural monitoring, angle measurement and control, and platform leveling.

Specifications:

Waterproof Rating: Up to 200 meters (656.2 ft).
Angular Range: High Gain: ±0.5°, Standard Gain: ±3°, Wide Angle: ±50°.
Resolution: High Gain: <0.0001°, Standard Gain: 0.0001°, Wide Angle: 0.002°.
Repeatability: High Gain and Standard Gain: 0.0003°, Wide Angle: 0.004°.
Non-Linearity: 0.1% for all models.
Temperature Coefficients: Kz: ±0.0002 °/°C (typical), Ks: 0.04%/°C (typical).
Output: RS232, RS422 with formats including NMEA XDR, Trimble TCM, Ashtec compatible.
Baud Rate: Default 9600, options up to 130400.
Power Requirements: 7-28 VDC @ 30mA, reverse polarity protected.
Environmental Conditions: Operational from -4° to +60°C, storage from -30° to +100°C.
Materials and Dimensions: Made from 316 stainless steel, dimensions 92.1 x 112.4 x 61 mm, weight 1.6 kg.

Wiring and Connections:

RS232 Pin Out: 1 - Pwr Gnd (Black), 2 - N/C (White), 3 - Pwr (Red), 4 - RxD (Green), 5 - N/C (Orange), 6 - TxD (Blue).
RS422 Pin Out: 1 - Pwr Gnd (Black), 2 - Tx- (White), 3 - Pwr (Red), 4 - TX+ (Green), 5 - RX- (Orange), 6 - RX+ (Blue).

Ordering Information: For ordering, contact Jewell Instruments at [email protected] or call (800) 227-5955.

Catalog excerpts

D820 Shallow Water Tiltmeter Series with Digital Output-1

deuieii Instruments The model D820 Shallow Water is a high-precision submersible tiltmeter for use in fresh and salt water applications with RS232 or RS422 digital output. Using an absolute gravity referenced electrolytic sensor, the D820 delivers superior measurement accuracy with virtually no long-term drift. High-gain units are sensitive to <0.0017 mm/m or better. All units are rated to 200 meters (656.2 ft) waterproof for advanced protection from the elements. Use the D820 "Shallow Water" for structural monitoring, angle measurement and control, platform leveling and more. L: Longitudinal T: Transverse B: Biaxial H: High Gain (±0.5°') S: Standard Gain (±3°) W: Wide Angle (±50°) Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103 [email protected] • www.jewellinstruments.com • Tel (800) 227-5955 L00264

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D820 Shallow Water Tiltmeter Series with Digital Output-2

24" LONG CABLE W/FLYING LEADS' IN ‘Custom cable lengths available on request Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103 [email protected] • www.jewellinstruments.com • Tel (800) 227-5955 L00264 Rev. C

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D820 Shallow Water Tiltmeter Series with Digital Output-3

Model D820 Shallow Water Digital Tiltmeter Part Numbers: D820 with RS232 Output

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