Optical Dissolved Oxygen Sensor DOS Series

Easy Installation, Simple Operation. Maintenance long-term unnecessary.

Features

Universal Transmitter SC Series

New transmitter which provide excellent usability and operability. Our sensors can be connected multiply.

Replacement sensor cap: DOS-CP

[Parts No. 05161]

It is a consumable item that we will exchange for 1 year as a guide.

Please go to the support page to get the necessary files in PDF.

Model	DOS-20
Measurement item	Dissolved Oxygen concentration (mg/L) Temperature (°C) Dissolved oxygen saturation (%) Oxygen Partial Pressure (kPa)
Measurement range(Display resolution)	Dissolved oxygen concentration: 0.00 – 50.00 mg/L (0.01 mg/L) Temperature: 0.0 – 50.0°C (0.1°C) Dissolved oxygen % saturation: 0.0 – 200.0 (0.1%) Oxygen partial pressure: 0.0 – 150.0 kPa (0.1 kPa)
Measurement resolution	± 0.1 mg/L (0 – 8 mg/L) ± 0.2 mg/L (8 – 20 mg/L) ± 10% of reading (20 – 50 mg/L)
Response time	90% response: < 45 seconds 95% response: < 60 seconds (Water temperature: 25°C)
Power supply voltage	12 to 36 VDC
Current consumption	25 mA max. (24 VDC)
Communications (function)	MODBUS (RTU/ASCII)
Operating temperature	0 to 50°C (unfrozen)
Major material	ABS
Dimensions	Φ44 × 204 mm
Weight	Approx. 850 g (including cable length of 10 m)
Degree of protection	IP68, maximum depth of 200 meters (underwater type)
Sensor cable length	10 m
Sensor cap replacement cycle	Every year after sensor installation (guideline)
Sensor cap storage period	2 years after manufactured date (when stored in the specified container) Storage temperature: 1 to 60°C