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Jewell Instruments
D701 Tiltmeter Datasheet

D701 Tiltmeter Datasheet

Product catalog summary

Overview: The Model D701 Digital Platform Tiltmeter by Jewell Instruments is a high-precision instrument designed for applications such as volcano monitoring, geotechnical engineering, structural monitoring, and platform leveling. It features advanced firmware capabilities and offers RS232 or RS422 (RS485 full duplex) output.

Specifications:

Models: D701-A (High-gain) and D701-B (Mid-Range)
Angular Range: ±0.5° for D701-A, ±5.0° for D701-B
Resolution: 1 μradian for D701-A, 10 μradian for D701-B
Repeatability: 4 μradians (static) for D701-A, 10 μradians (static) for D701-B
Non-Linearity: 0.4% for D701-A, 0.1% for D701-B
Time Constant: 0.15 sec for D701-A, 2 sec for D701-B
Temperature Coefficients: Kz ±3.5 μradians/°C, Ks ±0.02%/°C
Output Format: NMEA XDR, Trimble TCM, Ashtec compatible, Simple (default: X, Y, Temp., S/N)
Baud Rate: 9600 (default), 19200, 28800, 57600, 115200, 230400
Power: 7-28 VDC @ 30mA, reverse polarity protected
Environmental: Operates and stores between -40 to +85°C, IP65 rated
Dimensions: 6 x 6 x 4 inches (15 x 15 x 10 cm), 3 lb (1.4 kg)
Materials: Anodized and painted aluminum

Features: The D701 includes invar leveling feet for easy installation, a high-precision electrolytic sensor element, and on-board memory with a capacity of up to 22,000 samples. Firmware controls include sample averaging, auto-zero (tare), baud/output rate, and temperature compensation.

Accessories:

Power/signal cable, 10-conductor (specify total length on order)
Extra female panel receptacle (one included with tiltmeter)
Vertical mounting bracket (L-bracket)
Horizontal mounting plate

Wiring/Pin-out: The document provides detailed wiring and pin-out information for connecting the tiltmeter to a computer, including wire color, function, and connector pin assignments for both RS422 and RS232 configurations.

Catalog excerpts

Jewell Instruments The model D701 Digital Platform Tiltmeter is a high-precision instrument with advanced firmware features. Output is RS232 or RS422 (RS485 full duplex). The D701 also includes invar leveling feet for easy installation on any horizontal surface. Using a high-precision electrolytic sensor element, units deliver up to 1 Radian resolution with virtually zero long-term drift. Programmable firmware controls include sample averaging, auto-zero (tare), baud/output rate, temperature compensation* and more. The D701 also has on-board memory, with storage capacity up to 22,000 samples. Use the D711 for volcano monitoring, geotechnical engineering, structural monitoring, platform leveling, and more. Ordering Code Accessories Part No. Specifications subject to change without notice on account of continued product development Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103 [email protected] • www.jewellinstruments.com • Tel (800) 227-5955 L00208 Rev. D

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Jewell Instruments Dimensions: Dimensions in inches (mm) Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103 [email protected] • www.jewellinstruments.com • Tel (800) 227-5955 L00208 Rev. D

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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