Input Calibration
4/07 UDC2500 Universal Digital Controller Product Manual 149
5.8 Restore Input Factory Calibration
Introduction
The factory calibration constants for all the input actuation types that can be used with
the controller are stored in its non-volatile memory. Thus, you can quickly restore the
“Factory Calibration” for a given input actuation type by simply changing the actuation
type to another type and then changing it back to the original type.
Refer to Table 5-14 Restore Factory Calibration for procedure
ATTENTION
A restored factory calibration overwrites any previous field calibration done for the input and
may change the High and Low Range Limits.
Protect your field calibration from accidental overwrites by configuring the appropriate
LOCKOUT selection after calibration.
See
Section 3 - Configuration for specific instructions to set the lockout.
Table 5-14 Restore Factory Calibration
Step Operation Press Result
1
Set LOCKOUT to
NONE
SetupSetup
until you see:
Upper Display
= SET UP
Lower Display = TUNING
FunctionFunctionFunction
Until you see:
Upper Display = one of the following:
NONE – all parameters are read/write
CAL – all parameters are read/write except Calibration
CONF – configuration parameters are Read Only; no writes
permitted
VIEW – Tuning and Setpoint Ramp parameters are
read/write. No other parameters can be viewed.
ALL – Tuning and Setpoint Ramp parameters are available
for read only. No other parameters can be viewed.
Lower Display = LOCK
or
Until NONE is in the upper display
2
Enter INPUT 1
Setup Group
SetupSetup
until you see:
Upper Display
= SET UP
Lower Display = INPUT 1 or 2
FunctionFunctionFunction
until you see:
Upper Display
= the current selection
Lower Display = INxTYP
or
to change the current selection to another selection
3
Scroll through
Functions
FunctionFunctionFunction
until the lower display rolls through the rest of the functions and
returns to:
Upper Display = the new selection
Lower Display = INxTYP
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