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The OxyGuard optical oxygen probe is a high-precision sensor based on luminescence (optical) technology for measuring dissolved oxygen in water. Designed for reliable use in aquaculture, industrial, or natural environments, it provides stable, fast, and drift-free measurements.
OXYGUARD LDO Optical Oxygen Probe
Maximum depth: Up to 300 m or standard submersible use
Outputs: Analog signal (4–20 mA), digital (RS-485/Modbus) depending on configuration
Power supply: 12–24 V DC
Maintenance: Very low – no membrane, no electrolyte solution, infrequent recalibration
Compatibility: Easy integration with OxyGuard Pacific monitoring systems
Advantages:
No oxygen consumption – ideal for low-oxygen environments
Less sensitive to fouling than electrochemical probes
No frequent membrane or electrolyte replacement required
Robust, waterproof, and suitable for harsh environments
Models |
1 | |
Name |
OxyGuard Polaris Optic P0011070 |
|
O2 – mg/l |
0.0 ... 23.0 | |
O2 – % |
0...250 | |
°C | -5...+45 | |
Précision | ||
O2 – mg/l |
+/- 1% | |
O2 – % |
+/- 1% | |
°C |
+/- 2°C | |
Câble | 7.0 m | |
Dimension | 58 - 59 | |
Weight (kg) | 0.2 |
The optical probe uses a luminescent sensor based on fluorescence: a blue light excites an oxygen-sensitive dye, and the return time of the light is proportional to the oxygen concentration. This method requires neither electrolyte nor frequent membrane replacement, reducing maintenance costs and improving the device’s durability.
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