• 特性
• Field or panel-mounted housing
• Universal application
• For analog and digital sensors
• Simple handling
  - Logically arranged menu structure
  - Simple single-point calibration in air or in air-saturated water
• Safe operation
  - Excellent interference immunity
  - Direct access for manual contact control
  - User-defined alarm configuration
   The basic unit can be extended with:
• 2 or 4 additional contacts for use as:
  - Limit contacts (also for temperature)
  - P(ID) controller
  - Timer for simple rinse processes
  - Complete cleaning with Chemoclean
• Plus package:
  - Current output via table
  - Automatic cleaning trigger
  - Process monitoring
  - Sensor live check
• HART® or PROFIBUS-PA/-DP
• 2nd current output for temperature, main measured value or actuating variable
• Current input for flow rate monitoring with controller shut off or for feedforward control

"Liquisys M COM223F\/253F is a dissolved oxygen measurement transmitter available as panel (COM223F) or field housing (COM253F). The modular design of the transmitter allows easy adaption to a variety of customer requirements. Starting with the basic version for \"measurement and alarm generation\", the transmitter can be equipped with additional software and hardware modules for special applications. These modules can also be retrofitted as required.","Your benefits:"