User Manual

8 Configuration
34
Measurement offset
OFFS
-1999… 0… +9999 The measurement offset is used to correct a measured value
by a certain amount upwards or downwards.
Examples:
Measured Displayed
value offset value
294.7 +0.3 295.0
295.3 - 0.3 295.0
Special case: 2-wire circuit
If the input is connected to a resistance thermometer in 2-wire
circuit, then the lead resistance is set in ohms here.
Display start
SCL
-1999…0…+9999 On transducers with standard signal and on potentiometers, a
display value is assigned to the physical signal.
Example: 0 — 20mA  0 — 1500°C.
The range of the physical signal can be 20 % wider or
narrower without generating an out-of-range signal.
Display end
SCH
-1999… 100 …+9999
Filter time constant
dF
0 … 0.6 … 100 s To adjust the digital input filter (0sec = filter off).
63% of the alterations are acquired after 2x filter time constant
at a signal step change.
When the filter time constant is large:
- high damping of disturbance signals
- slow reaction of the process value display
to process value changes
- low limit-frequency (2nd order low-pass filter)
Fine tuning
start value
FtS
-1999 … 0 … +9999
see description on the following pages.
Fine tuning
end value
FtE
-1999 … 1 … +9999
Heater current
monitoring (output)
HEAt
0
1 … 10
No function
Output 1—10
The AC heater current can be measured by using a current
transformer on analog input #2. An alarm can be configured
by using the LK-1 function and sent to a relay while the
monitoring is active.
KTY correction value
at 25°C
(setup) 0
… 2000 … 4000 Ω Resistance at 25°C/77°F for linearization “KTY 11-6”
Analog input 1
InP1 ➔
Analog input 2 InP2 ➔
Symbol Value/selection Description
Factory settings are shown bold.
A
The controller uses the corrected value (= displayed
value) for its calculation. This value is not the same as
the actually measured value. If incorrectly applied, this
can result in impermissible values of the control
variable.
H
Unlike all the other settings, entry of the start and end
value is linked to the latest measurement at the input
concerned.
As a rule, these values can not be adopted by another
instrument.