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
Questions & Answers
Can the mA output on an analog Solu-Blu TDG probe be changed?
Yes, the sensor mA value can represent dissolved gas pressure, percent saturation, or atmospheric pressure. This is done by connecting the probe through a computer’s serial port and running a terminal program like Tera Term, CoolTerm and more. Once connected through the terminal, you will then be able to change the analog output to the desired format.
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Pro-Oceanus Solu-Blu TDG Probe
S3050-3
Solu-Blu total dissolved gas pressure (TDG) probe, 3m cable
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Pro-Oceanus Solu-Blu TDG Probe
S3050-5
Solu-Blu total dissolved gas pressure (TDG) probe, 5m cable
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Pro-Oceanus Solu-Blu TDG Probe
S3050-10
Solu-Blu total dissolved gas pressure (TDG) probe, 10m cable
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Pro-Oceanus Solu-Blu TDG Probe
S3050-20
Solu-Blu total dissolved gas pressure (TDG) probe, 20m cable
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Pro-Oceanus Solu-Blu TDG Probe
S3050-25
Solu-Blu total dissolved gas pressure (TDG) probe, 25m cable
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Pro-Oceanus Solu-Blu TDG Probe
S3050-50
Solu-Blu total dissolved gas pressure (TDG) probe, 50m cable
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