Installation manual

Input Parameters
900M050U00  Athena Controls, Inc. 5-7
Effect on Other
Parameters:
If you select an RTD or thermocouple input, then scaling limits
used by linear input types do not apply. The Linear Input
Scaling Low Limit (SCL.LSCL.L) and Linear Input Scaling High Limit
(SCL.HSCL.H) parameters will not be displayed in the input menu.
If you select rt.drt.d (100 ohm compressed RTD with decimal
support), the Decimal Position parameter will not be displayed in
the display menu. A compressed RTD input always uses one
decimal position.
When you change the input type, parameters expressed in
engineering units will be recalculated or set to the defaults.
Note 1: The input type is configured at the factory. The type configured depends on the
input calibration type ordered. To determine the input calibration ordered for the
controller in hand, check the model number on its label. The significance of each
character in the model number is in the installation manual supplied with the controller.
The table below shows the correlation between the input character and the factory input
setting. Not every input calibration character applies to every model.
Input Calibration Model
Number Character
Factory Configuration for
Input Type
A type set to J thermocouple; calibrated
for all input types
B
type set to J thermocouple; calibrated
for thermocouple and RTD
C type set to 0 to 20 mA linear;
calibrated for current linear input
M type set to 0 to 50 mV linear;
calibrated for millivolt linear input
R
type set to RTD; calibrated for RTD
input
S type set to RTD with decimal support;
calibrated for RTD input
T type set to J thermocouple; calibrated
for thermocouple input
V
0 to 5 V linear; calibrated for voltage
linear input