Microprocessor based 2-wire transmitter suitable for field installation. The unit features isolated inputs and outputs, digital display and rain proof construction.
Simple Span Calibration
The instrument can be calibrated in one action by virtue of memory- resident saturated DO (dissolved oxygen) data. A built-in stabilization determination function enables the unit to be calibrated accurately without operator error.
Automatic determination of electrode quality
During calibration, the electrode quality is automatically evaluated. If the electrode quality has deteriorated to an unacceptable level, an error message is generated.
ODM-136A (4 Wire) Features
Microprocessor based 4-wire transmitter suitable for field installation. The unit features isolated inputs and outputs, digital display and rainproof construction.
Simple span calibration: The instrument can be calibrated in one action by virtue of memory resistant saturated DO (Dissolved Oxygen) data stored in the memory.
The built-in stabilization determination function enables the unit to be accurately calibrated preventing operator error.
Automatic determination of electrode quality: During calibration, the electrode quality is automatically evaluated. An error message is generated when the electrode quality deteriorates to an unacceptable level.
Output range adjustment. The output range can be easily reconfigured.
Output signal can be frozen during maintenance work: By switching to ST-BY (Stand By) mode the output value can be held to avoid disruption to the process control system.
Facility to receive external contact switching signal to hold output (for example, during electrode cleaning etc).
ODM-135A Brochure 
