Endress+Hauser COM253-DX0005 | Liquisys DO Transmitter, 4-20mA HART, Wall Mount

Endress+Hauser COM253-DX0005 | Liquisys DO Transmitter, 4-20mA HART, Wall Mount

Endress+Hauser COM253-DX0005 single-channel DO transmitter for COS41/COS61 sensors. 100-230V AC, 4-20mA HART output, IP65 wall-mount housing.

Product Overview

The Endress+Hauser COM253-DX0005​ is a single-channel, wall-mount transmitter​ from the Liquisys COM253 series​ for dissolved oxygen (DO) measurement. Designed for water, wastewater, and aquaculture applications, it features a graphical LCD, supports both analog and Memosens digital DO sensors​ (like COS41/COS61), and provides a 4-20mA HART output​ for integration into process control systems.

Technical Specifications (Electrical & Functional)

Technical Specifications (Mechanical & Environmental)

Key Features

• Dual Sensor Support:​ Compatible with both traditional analog (e.g., COS41-2F) and advanced Memosens digital DO sensors​ (e.g., COS61), offering flexibility in sensor selection and future upgrades.

• Process Diagnostics:​ Features continuous sensor and process monitoring with plausibility checks, providing early warnings for sensor failure or process deviations.

• Easy Calibration:​ Simplified one-point calibration procedure (in air or saturated water) guided by the graphical display, reducing maintenance time.

• Modular Platform:​ The COM253 base platform allows for optional expansion with relay modules or additional communication cards if future needs change.

Applications

• Wastewater Aeration Control:​ Precise DO monitoring in activated sludge basins to optimize blower energy consumption.

• Surface Water Monitoring:​ Environmental monitoring of dissolved oxygen in rivers, lakes, and reservoirs.

• Aquaculture & Fish Farming:​ Maintaining optimal oxygen levels in fish ponds and hatchery tanks.

• Drinking & Process Water:​ Quality control in potable water treatment and industrial process water systems.