KROHNE OPTITEMP TT 10 C-R EN - Manual (Page 21)

ELECTRICAL CONNECTIONS
4
21
OPTITEMP TT 10 C/R
www.krohne.com 02/2013 - 4000752703 - MA OPTITEMP TT 10 C/R R03 en
4.2 Electrical input connections
4.2.1 In-head transmitter (Ex and Non-Ex)
RTD RTD RTD RTD
Thermocouple Thermocouple Thermocouple Thermocouple
INFORMATION!
The transmitter is protected against polarity reversal. No damage will occur to the device if the
polarity of the supply voltage is switched. The output will then indicate 0 mA.
INFORMATION!
The calibration of this transmitter works with potentiometers. Therefore assure that the
transmitter is protected against heavy impacts or strong vibrations. Otherwise the calibration
data could change.
CAUTION!
Always establish the electrical connections according to the following diagrams. Otherwise it
can come to destruction or damage of the transmitter.
INFORMATION!
To avoid measuring errors, assure that all cables are connected properly and that the screws
are tightened correctly.
Figure 4-1: Pt100, 3-wire input connection (Ex and Non-Ex version)
Figure 4-2: Thermocouple, 2-wire input connection
.book Page 21 Tuesday, February 26, 2013 1:43 PM