Precision Digital PD6310 - Manual (Page 47)

Model PD6210 & PD6310 Batch Controllers Instruction Manual
47
Scaling the Controller (SCALE)
The process inputs (4-20 mA and 10 VDC) can be scaled to display the
process variable in engineering units.
A signal source is not needed to scale the controller; simply program the
inputs and corresponding display values.
SCALE
Prog
Inp 1
SCALe
0 4.000
I n p 1
Inp 2
SCALe
2 0.000
I n p 2
dis 1
SCALe
0 04.000
d i s 1
dis 2
SCALe
0 20.000
d i s 2
For instructions on how to program numeric
values see Setting Numeric Values, page 42.
Error Message (Error)
An error message indicates that the calibration or scaling process was not
successful.
After the error message is displayed, the controller reverts to input 2
during calibration or scaling and to input 1 during internal calibration,
allowing the appropriate input signal to be applied or programmed.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals or it is connected
backwards.
2. Wrong signal selection in Setup menu.
3. Minimum input span requirements not maintained.
4. Input 1 signal inadvertently applied to calibrate input 2.
Minimum Input Span
The minimum input span is the minimum difference between input 1 and 2
signals required to complete the calibration or scaling of the controller.
Input range Input 1 & input 2 span
4-20 mA 0.15 mA
10 VDC 0.10 VDC