B&C Electronics OD 8525
This submersible DO probe provides a 4-20 mA current loop or a RS485 and Modbus (function 03) outputs.
It is equipped with an optical DO sensing element and an internal Pt1000 temperature compensator.
The configuration of the scale, the pressure, the relative humidity, the salinity and the calibration is performed in the digital mode through the hyperteminal of the PC.
The autoclean of the sensing element is performed by the injection of clean air pressure, provided by the user.
These unique probes have been designed to measure
dissolved oxygen based on fluorescent technology.
The probes are available for submersible and in-pipe installations.
The measuring system consists of:
• optical device complete of fluorescent material,
• d.oxygen and temperature measuring circuit,
• 2-wire 4/20 mA analog output,
• RS 485 digital output,
• nozzle for the autoclean by external pressure air (OD 8325).
|Scale||0/20 ppm – 0/200 % air|
|Sensitivity||± 0,5 % of the scale|
|Response time||95% in < 60 seconds|
|Power supply||9/36 Vdc|
|Analog output||4/20 mA isolated current Loop|
|Load||600 Ω max. at 24 Vdc|
|Digital output||RS 485|
|Secondary parameters||pressure, salinity, RH|
|Room temperature||-5/50 °C|
|Max. pressure||1 bar at 25 °C (OD 8325); 6 bar at 25 °C|
|Autoclean||by pressure air 3 bar max|
|Dimensions OD 8325
Dimensions OD 8525
|L=165 mm total, D= 60 mm
L=143 mm total, D= 40 mm
|Cable||10 m (100 m max.)|
- Water treatment