Endress+Hauser Smartec S CLD132 - Page 35

Smartec S CLD132 Commissioning
Endress+Hauser 35
C07-CLD132xx-05-06-00-xx-011.eps
Fig. 33: Determination of temperature coefficient
A Required data
BCalculated
α values
Use the following formula to calculate the α values for the temperatures occurring in your process:
Enter the
α−T value pairs calculated with this formula in the fields T5 and T6 of the function group
ALPA TABLE.
In the SETUP 2 function group, you can change the settings for temperature measurement.
You have already made the settings of this function group during quick setup but you can modify
the settings at any time.
T
1
T
0
T
2
TT
k
2
k
1

k()
T
0
T
1
T
2
a
1
a
2
a
A
B
α =
100
κ(T )
0
κκ(T) - (T )
0
T - T
0
.
; T T≠
0
Coding Field Selection or range
(factory settings bold)
Display Info
B
Function group
SETUP 2
Settings for temperature measurement.
B1
Select temperature
sensor
Pt100
Pt1k = Pt 1000
NTC30
fixed
If set to "fixed":
no temperature measurement, a fixed
temperature value is entered instead.
B2
Select temperature
compensation type
none
lin = linear
NaCl = common salt (IEC 60746)
Tab 1 ... 4
This option is not displayed for concentration
measurement.
The options Tab 2 ... 4 are only available for
transmitters with the "Remote measuring
range switching" upgrade.
B3
Enter temperature
coefficient
α
2.1 %/K
0.0 ... 20.0 %/K
Only if B2 = lin.
Tables defined in B2 are not active in this case.
B
SETUP 2
B1
ProcTemp.
Pt100
B2
TempComp.
lin
B3
%/K
Alpha val
2.10