KROHNE OPTITEMP TT 11 C-R EN - Manual (Page 27)

OPERATION
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OPTITEMP TT 11 C/R
www.krohne.com 05/2011 - 4000752902 - MA OPTITEMP TT 11 C/R R02 en
INFORMATION!
The manufacturer recommends checking the calibration annually. To achieve the best possible
accuracy, note the following items:
• All calibration instruments (i.e. resistance decade and amperemeter) must have an accuracy
of at least 0.02%.
• Assure that the complete solder pad configuration has taken place before the calibration.
• The calibration has to take place according to the temperature scales ITS 90 (DIN EN 60751).
The resistance decade must have a temperature coefficient setting for platinum (= 0.00385).
• If you set an input signal that delivers an outputs signal of 12 mA as described in the following
actionsequence, wait circa 15 minutes and check the stability of the output signal afterwards.
Only if the output signal is stable then, the transmitter is ready for calibration.
Potentiometers of the in-head version
1 Potentiometer for zero point setting
2 Potentiometer for measuring span setting
Potentiometers of the rail-mount version
1 Potentiometer for zero point setting
2 Potentiometer for measuring span setting
.book Page 27 Friday, May 6, 2011 10:52 AM