Sensors handle tough environments
A
Baumer Group product story
Edited by the Engineeringtalk editorial team
Oct 10, 2007
With the TED/YTED and ETTN/YTTN ranges Baumer offers within the product segment Process Instrumentation robust measuring instruments for pressure and temperature control for process management.
With the ranges Baumer has released robust measuring instruments for pressure and temperature control for process management.
The TED/YTED and ETTN/YTTN totally stainless steel devices are suitable particularly for severe industrial environments.
Based on microprocessor technology, the devices of both type series can be programmed completely on site using code-protected keys.
They have two threshold outputs, PNP transistors or galvanic isolation.
Output signal can be analogue (4 to 20mA) or digital (RS485 Modbus).
The digital devices of the TED and YTED ranges are suitable for vacuum and absolute or gauge pressure measurements up to 400bar.
TED devices are available for many different pressure connections and as well as in a 300 degree swivelling version.
YTED pressure switches are also offered together with safety modules as complete ATEX intrinsic safety approved systems for hazardous areas.
To process the threshold, the device needs to be connected to a safety barrier placed in a nonhazardous area.
The power supply to the pressure switch is via the processing modules.
ETTN and YTTN range digital temperature switches can measure a scale from -200 to +400C with an accuracy of +/- 0.5C.
It is possible to reduce the errors due to thermal resistance of the pipe or thermowell by manually entering the process fluid temperature into the ETTN.
Depending on the version, the temperature measurement is effected by a submerged probe or by surface contact.
The YTTN switches are the ATEX version intrinsic safety approved for hazardous areas.
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