Endress+Hauser iTEMP TMT84 - Page 73

TMT84 11 Operation using PROFIBUS
®
PA
Endress + Hauser 73
Submenu "Special linearization 1" or "Special linearization 2"
Procedure for configuring a special linearization using Callendar-Van Dusen coefficients from a cal-
ibration certificate:
1. Start

2. Configure the type of measurement e.g. PV=SV1

3. Select unit (°C)

4. Select the sensor type (linearization type) "RTD platinum (Callendar-Van Dusen)"

5. Select type of connection e.g. 4-wire

6. Enter the four coefficients A, B, C and R0

7. If special linearization is also used for a second sensor, repeat steps 2 to 6

8. End
Special linearization 1 / Special linearization 2
Menu item Parameter
"Sensor"
Submenu
"Special lineariza-
tion n"
Name
Parame-
ter access
Description
Call.-v. Dusen lower
range
read/
write
Lower calculation limit for Callendar-Van Dusen
linearization.
Factory settings:
0.0
Call.-v. Dusen upper
range
read/
write
Upper calculation limit for Callendar-Van Dusen
linearization.
Factory settings:
100.0
Call.-v. Dusen coeff.
R0
read/
write
! Note!
The values for the R0 value must be in the range of 40 to
1050 Ohm.
Factory settings:
100