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OBS-3+
Suspended - solids and turbidity sensor
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- Measures turbidity and suspended solids
- Compact micro low-power probe
- Integral Voltage clamp and 4-20 mA current
loop
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OBS-3A
Suspended - solids, pressure, temperature, and salinity logger
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- No cable required, runs 1,500-8,000 hours
on 3 “D” cells
- Measures sediment concentrations to 5,000
mg/ι & turbidity to 4,000 NTU with field-proven
OBS® technology (U.S. Patent No. 4,841,157)
- Logs depth, wave height, wave period,
temperature, and salinity
- Records 200,000 lines of data in FLASH
- Compact package – 76 mm (3”)
by 362 mm (14.3”)
- Program setpoints & sampling times
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OBS-4
Micro-size turbidity sensor
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- Micro-size turbidity sensor
- Custom OEM packaging
- Low-power laser light source with automatic
power control (APC)
- Choice of 650, 780, or 850 nm operating
wave
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OBS-5+
Optical monitor for high - sediment cocntrations
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- Measures concentrations up to 200 g/l
(specific gravity 1.12)
- Logs instrument depth, wave height, and
period
- Records 200,000 scans of data in FLASH
memory
- Runs as long as six months on three alkaline
C cells
- RS-232 and RS-485 data links
- Compact package 380 mm (15”) by
60 mm (2.4”)
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Hydro-Wiper+
Mechanical wiper system
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- Highly effective in both marine and fresh water
- Simple to attach
- Embedded microprocessor for intelligent operation control
- High precision on-board clock for accurate wipe interval timing
- Fully self contained; no system integration required
- Rugged design for dependable reliability
- Field proven brush technology
- Simple wipe interval adjustment
- Very long deployment endurance
- Drive shaft slip mechanism prevents gearbox damage
- 30m operating depth as standard
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