Lower Range Value [09]/Upper Range Value [10]; Lower Range Value [09] Parameter; Upper Range Value [10] Parameter; Adjusting Lower Range Value/Upper Range Value - Siemens SITRANS TH100 Operating Instructions Manual

Parameter assignment
9.3 Parameter assignment over device with display
9.3.9

Lower range value [09]/Upper range value [10]

9.3.9.1

Lower range value [09] parameter

Sets the lower range value.
Indication on the dis‐
play:
Setting range:
Factory setting:
9.3.9.2

Upper range value [10] parameter

Sets the upper range value.
Indication on the dis‐
play:
Setting range:
Factory setting:
9.3.9.3

Adjusting lower range value/upper range value

Introduction
The lower range value (4 mA) corresponds to 0% of the measuring range. The upper range value
(20 mA) corresponds to 100% of the measuring range. Using remote operation you can change
the relationship between the values of the lower range value/upper range value and the current
output. For example, lower range value corresponds to 20 mA.
You have the following options for assigning the desired temperature measurements to the
lower range value and the upper range value:
Set lower range value
Set upper range value
The minimum permissible measuring span of the input type must not be underpassed. You can
find the minimum permissible measuring span of your input type in the section Technical data
(Page 193).
Procedure
1. Navigate to the parameter view.
Navigating in the views (Page 107)
2. In the parameter view, select the "Set lower range value" parameter.
148
LOWER RANGE
Within the measuring limits
0 °C
The lower range value (4 mA) corresponds to 0% of the measuring range.
UPPER RANGE
Within the measuring limits
100 °C
Device with display
"Lower range value" parameter
"Upper range value" parameter
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
Remote operation
Settings > Current output > Low‐
er range value
Settings > Current output > Up‐
per range value
Operating Instructions, 05/2020, A5E41864807-AB