5 physcial, Operations, 1 instrument setup – Campbell Scientific OBS-3A Turbidity and Temperature Monitoring System User Manual
Page 14: 1 mounting suggestions, Physcial, Instrument setup, Mounting suggestions, 1. dimensions
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
6
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