Pro-Oceanus Solu-Blu TDG Probe
The Pro-Oceanus Solu-Blu total dissolved gas (TDG) probe can be used for long-term continuous in-situ monitoring to provide reliable dissolved gas pressure measurements.
Features
- Provides continuous 24/7 TDG monitoring
- Not affected by increasing hydrostatic pressure
- Designed for aquaculture, dam spillways, groundwater monitoring, etc.
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Overview
The Solu-Blu total dissolved gas (TDG) probe can be used for long-term continuous in-situ monitoring to provide reliable dissolved gas pressure measurements. It provides accurate TDG pressure data and is designed for use in aquaculture, dam spillways, groundwater monitoring, and industrial applications. Solu-Blu TDG probe is not affected by increasing hydrostatic pressure. It can be used in a range of liquids ranging from fresh- and salt water to industrial fluids such as oil or hydraulic fluid.
Mechanics
The measurement of all gases dissolved in a liquid is facilitated by a semi-permeable membrane that allows gases to transfer from water into a gas head space where the measurement is made.
For air pressure compensation, the sensor uses a vented cable with a barometric pressure sensor inside the housing. This pressure is then used in calculating the % Saturation. When using the RS-232 signal, both the dissolved gas pressure and the barometric pressure are output in the data string.
| Sensor Performance | |
|---|---|
| TDG Pressure Range | 800-1300 mbar Absolute 75-150% Saturation *other ranges available |
| Accuracy: | ± 0.1% (Temperature compensated from 0 to 50º C) |
| Equilibration rate (t63): | Dependent on gas composition |
| Resolution | 0.1 mbar 0.1% Saturation level |
| Physical | |
|---|---|
| Length | 20 cm (8 in) 26 cm with connector |
| Diameter | 5 cm (2 in) |
| Weight | 0.28 kg (0.6 lbs) |
| Housing Material | Acetal Plastic |
| Depth Rating | 0 - 50 meters |
| Water Temperature | -2º to 40º C |
| Electrical | |
|---|---|
| Input voltage | digital: 7-24 VDC analog: 12-24 VDC |
| Power consumption | 0.04 W (3.5 mA @ 12 V) |
| Data output | RS-232, ASCII format 0-5 V or 4-20 mA |
| Sample rate | 1 second |
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S3050-3
Solu-Blu total dissolved gas pressure (TDG) probe, 3m cable
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