WIKA Digital temperature transmitter, head-mounted version Models OTMT84, OTMT85

Applications
* Process industry
* Machine building and plant construction
Special features
* Model OTMT84: PROFIBUS® PA profile 3.02
* Model OTMT85: FOUNDATION™ Fieldbus H1
* Explosion-protected version Ex ia (intrinsically safe/FISCO) and Ex ec available
Description
The models OTMT84 and OTMT85 temperature transmitters with FOUNDATION™ Fieldbus or PROFIBUS® PA communication feature a universal input for temperature measurements with resistance thermometers, thermocouples, resistance sensors and voltage sources, which are possible with or without customer-specific linearisation. Differential, average or redundancy temperature measurements can be realised.
The temperature transmitters are characterised by their reliability, long-term stability, high accuracy and extended diagnostic options.
For FOUNDATION™ Fieldbus, the OTMT85 is available with LAS functionality (Link Active Scheduler) and PID controller. These functionalities allow for master-independent regulations in the field instrument.
The models OTMT84, OTMT85 temperature transmitters have a polarity-independent bus connection. Due to their small dimensions, the temperature transmitters are suitable for mounting into form B connection heads in accordance with DIN EN 50446.
The temperature transmitters are delivered with a factory configuration or configured according to customer specifications within the given limits.