Campbell OBS-3A Manuel télécharger pdf (Page 14)

OBS-3A Turbidity and Temperature Monitoring System

Battery capacity: 18 A h

Maximum battery life: 8,000 hours

Data protocols: RS-232 / RS-485

Maximum housing depth: 300 m (984 ft)

Infrared wavelength: 850 nm

Operating temperature

range: 0° to 35°C

Storage temperature range: –20° to 70°C

5.5 Physcial

Length / diameter: 362 mm (14.3 in) / 76 mm (3.0 in)

Weight (w/o batteries): 1.5 kg (3.4 lb)

Weight (submerged): 0.2 kg (0.5 lb)

FIGURE 5-1. Dimensions

362 mm (14.3 in)

↑

76 mm

(3.0 in)

↓

USE HOSE CLAMPS HERE

6. Operations

6.1 Instrument Setup

6.1.1 Mounting Suggestions

Maximum depth for the OBS-3A housing is 300 meters.

Working depths for individual instruments are limited by the

installed pressure sensor. If exceeded, the pressure

sensor will rupture and the housing will flood.

CAUTION

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Campbell OBS-3A Manuel Page 14