Owner's manual

7 TECHNICAL DATA
56
OPTITEMP TRA/TCA
www.krohne.com 08/2010 - 4000630501 - MA OPTITEMP TRA/TCA R01 en
7.7 Permissible temperatures
7.7.1 Connection head
7.7.2 Unloaded thermowell and immersion tubes
The temperatures specified in the following tables are valid only for thermowells and immersion
tubes that do not project into flowing media or media under pressure. The maximum permissible
temperature is reduced under load:
Thermowells
Measuring insert immersion tubes
Temperature
transmitter
Connection head Temperature range Maximum temperature
limiting component
Material Display
None Metal No -40...+100°C/
-40...+212°F
Seal between connection
head cover and cable entry
None Plastic No -40...+80°C/
-40...+176°F
Connection head material
Yes Metal No -40...+85°C/
-40...+185°F
Temperature transmitter
Yes Plastic No -40...+80°C/
-40...+176°F
Connection head material
Yes Metal Yes -40...+70°C/
-40...+158°F
Display
DANGER!
If you are unsure as to whether the device can withstand the loads of the process when using an
insertion-type thermometer without thermowell, have a separate strength calculation done (e.g.
per DITTRICH or MURDOCK)! For further information contact the manufacturer.
INFORMATION!
The manufacturer can provide an optional strength calculation for a fee.
Type of
thermowell
Material Permissible temperature range
Any 1.4571 / AISI 316 Ti (Standard) -200...+600°C / -328…+1112°F
1.4404 / AISI 316 L (optional) -200...+600°C / -328…+1112°F
1.4841 / AISI 314/310 (optional) 0...+1000°C / +32…+2012°F
Type of sensor Material Permissible temperature range
Pt100 RTD 1.4404 / AISI 316 L -200...+600°C / -328…+1112°F
Thermocouple
Inconel
®
600
-40...+1100°C / -40…+1832°F
.book Page 56 Tuesday, August 17, 2010 12:18 PM