Specifications

17-314-01 rev. 01 11/01

Smart

™

Digital Depth & High Precision Temperature Sensor

Furuno # 235DHT-MSE Airmar # 44-030-1-01

# 235DHT-LMSE # 44-035-1-01

Inboard/Outboard Interface

• Data output protocol: Differential NMEA 0183, v2.0

• Data transmission rate: Once per second

• Software re-programmability: Yes, via NMEA data lines

• Depth data string:

$SDDBT,x.x,f,x.x,M,x.x,F*hh<CR><LF>

$SDDPT,x.x,*hh<CR><LF>

• Temperature data string:

$YXMTW,x.xx,C*hh<CR><LF>

Electrical Power

• Supply voltage: 8.4VDC to 31.2VDC

• Supply voltage at 100% sound output: 12.8VDC to 31.2VDC

• Supply current: 80mA maximum

• Reverse polarity protection

Depth Measurement

• Depth range: 0.6m (2') to 100m (330')

• Depth resolution, DBT: 0.1m, 0.1', 0.1 fathom

DPT: 0.1m

Depth Accuracy

Based on sound speed of 1,500 m/sec.

• 0.6m to 5m: ± 20cm

• 5m to 100m: ± 3%

Temperature Sensor

• High precision thermistor: Airmar #07-518-01

• Nominal resistance value: 10,000

Ω

at 25º C ±0.2º C

• Temperature range: -10ºC to +40ºC

• Temperature resolution: 0.01ºC

• Temperature accuracy: ±0.5ºC

SMART

™

SENSOR SPECIFICATIONS

AIRMAR

TECHNOLOGY CORPORATION

35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA

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www.airmar.com