Jewell Instruments D802 Specifications

Model D802 DeepWater Digital Tiltmeter

The model D802 Deepwater is a high-precision
submersible tiltmeter for use in marine,
offshore, and deep ocean applications. Using an
absolute gravity referenced electrolytic sensor,
the D802 delivers superior measurement
accuracy with virtually no long-term drift. High­gain units are sensitive to <0.0017 mm/m or
better. Output is RS232 or RS422. All units are
rated to +2500m waterproof for advanced
protection from the elements. Use the D802
“Deepwater” for structural monitoring, angle
measurement and control, platform leveling,
and more.

DeepWater Digital (Standard) DeepWater Digital (Wide Angle)

Angular Range ±5° ±60°

Resolution 0.002 degrees 0.02 degree

Repeatability 0.002 degree 0.02 degree

Temperature Coef. 0.001 degree/°C typical 0.01 degree/°C typical

Channels X-tilt, Y-tilt, Temperature

Non-Linearity 0.1% of full span or better

Time Constant 0.15 second
Output

Baud Rate 9600 (default), 19200, 28800, 57600, 115200, 230400

Output Format NMEA XDR, Trimble TCM, Ashtec compatible, Simple (default: X, Y, Temp., S/N)

Power

Environmental -25° to +70°C operational, -30° to +100°C storage. 3500 psi (~250 bars)
Mounting

Materials 316 stainless steel
Connector

Size & Weight 152 x 102 x 89 mm (6 x 4 x 3.5 inches), 5 kg (11 lb)

7 to 25 VDC @ 27 mA, 250 mV peak-to-peak ripple maximum, reverse polarity

Four no. 10 stainless steel mounting screws.

6-pin neoprene, wet-mateable

Ordering Code: Wiring/Pin-out:

RS232 or RS485

protected

Pin Wire Color Function

1 Black

Ground

RS485

Function

Ground

2 White Not used TX-

3 Red Power Power

4 Green RX TX+

5

6 Blue TX RX+

Yellow

(Orange)

Not Used RX-

Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103

[e-mail] • www.jewellinstruments.com • Tel [phone]

L00261 Rev. B

Model D802 DeepWater Digital Tiltmeter

Dimensions:

Axis Configuration:

LONGITUDINAL

CONFIGURATION

Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103

[e-mail] • www.jewellinstruments.com • Tel [phone]

TRANSVERSE

CONFIGURATION

L00261 Rev. B