West Control Solutions Pro-EC44 - Page 54

Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Pro-EC44 Product Manual - 59540-2 September 2014 Page 48
Input 2 Calibration - Sub-menu to calibrate Input 2. Press D + R to return to Input Menu
Calibration Type
If input 2 is selected as a standard process input, the user can select the
calibration type from base; single or 2-point calibration. Select single to
apply a calibration offset across the entire measured range. Use 2-point to
enter calibration offsets at both low and high points of the usable range –
refer to the User Calibration details on page 70.
Caution: The default is Base Calibration. For single or 2-point
calibration, the user must enter values to adjust the displayed value
to match a known standard or accurate external reading.
Calibration Offset
The single point calibration offset. Limited by the input span, +Ve values
add to, –Ve values subtract from measured input across the range.
Calibration Low
Value
The displayed value for the 1
st
(low) adjustment of 2-point calibration.
Choose a value close to the lowest level used in the application.
Calibration Low
Offset
The adjustment value for the 1
st
(low) point when using 2-point calibration.
+Ve values add to, –Ve values subtract from measured input at this point.
Calibration High
Value
The displayed value for the 2
nd
(high) adjustment of 2 point calibration.
Choose a value close to the highest level used in the application.
Calibration High
Offset
The adjustment value for the 2
nd
(high) point when using 2-point calibration.
+Ve values add to, –Ve values subtract from measured input at this point.
Calibration Reminder - Calibration reminder Sub-menu. Press D + R to return to Input Menu
Calibration Reminder
Enable/Disable
Enables/disables the Calibration Reminder shown at start-up (and daily
thereafter), if the due date has passed - Recorder version only
Calibration Reminder
Date
Sets the due date for Calibration Reminder - Recorder version only
Auxiliary Input A Setup - Sub-menu to setup auxiliary A input. Press D + R to return to Input Menu
Auxiliary Input A
Type
The analogue input type/range to be applied to auxiliary input A. Select the
type from 0-20 or 4-20mA; 0-5, 1-5, 0-10 or 2-10VDC.
Aux A Input Lower
Limit
These scale values relate to when auxiliary input A is at the range
minimum & maximum values. They are adjustable between ±0.001 &
±10000. When auxiliary input A provides a remote setpoint, the scaled
input becomes the effective setpoint (although always constrained within
setpoint limits).
Caution: Take care to scale correctly especially if being used as the
remote setpoint source for both loops.
Aux A Input Upper
Limit
Auxiliary Input A
Offset
An offset applied to the scaled auxiliary input A value. Adjustable, from +/-
0.001 to 20000 units or OFF, with. +Ve values add, –Ve values subtracted.
Useful in multi-zone setpoint slave applications. Default = OFF.