Endress+Hauser Dissolved oxygen transmitter Liquisys COM253

Liquisys COM253 is a standard transmitter for use with COS41 and COS61 oxygen sensors. It improves your operational safety thanks to continuous plausibility, process and sensor checks. Select from numerous hardware and software modules, such as relays or fieldbus communication, to adapt it exactly to your measuring task. This modularity also allows you to upgrade the transmitter at any time. A simple menu and calibration make configuration and operation fast and easy.

The Liquisys COM253 transmitter works with Oxymax COS41 and Oxymax COS61 dissolved oxygen sensors in environmental applications, such as:

• O2 control in the aeration basin

• O2 control and monitoring of drinking water

• Surface water monitoring

• Process water treatment and monitoring

• O2 control in fish farming for optimum growth conditions

Liquisys COM253 features the following protocols and interfaces:

• 0/4...20 mA

• HART

• PROFIBUS DP

• PROFIBUS PA

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• Measuring principle	Amperometric oxygen measurement
  Application	Water, Waste water, process, fish farming
  Characteristic	4-wire transmitter with graphic display.
  Design	Dissolved oxygen transmitter in a field housing made of PC/ABS for COS31/41/71.
  Material	PC/ABS-housing
  Dimension	247x170x115mm (9.63x6.63x4.48inch)
  Temperature sensor	Display and current output.
  Input	1-channel transmitter.
  Output / communication	0/4-20mA, Hart, Profibus.
  Additional certifications	CSA Gen. Purpose.

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