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Chapter 3 Programming
3-1 Process Input
Press
for 4 seconds to enter setup mode. Press
parameter. The display will indicate the parameter symbol and the
value ( or selection ) for that parameter.
INPT: Selects the sensor type and signal type for the process input.
UNIT: Selects the process unit.
RESO: Selects the location of the decimal point (Resolution) for
most (not all) process related parameters.
IN.LO: Selects the low scale value for the Linear type input
Hidden if: T/C or RTD type is selected for INPT
IN.HI: Selects the high scale value for the Linear type input
Hidden if: T/C or RTD type is selected for INPT
How to use IN.LO and IN.HI:
If 4-20mA is selected for INPT, let SL specifies the input
signal low (ie. 4mA), SH specifies the signal high (ie. 20mA),
S specifies the current input signal value, the conversion
curve of the process value is shown as follows:
process value
IN.LO
PV
IN.HI
SL
S
SH
Figure 3-1 Conversion Curve for
Linear Type Process Value
input signal
UM0L911C
to select
33
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