Precision Digital PD662 - Manual (Page 18)

PD662 Loop-Powered Meter Instruction Manual
18
Scaling the Meter (SCL)
The 4-20 mA input can be scaled to display the process in engineering
units.
A signal source is not needed to scale the meter; simply program the
inputs and corresponding display values.
If using linear signal input conditioning, enter the number of scale points
(2-32), followed by the input values and display values. If using square
root signal input conditioning, the number of points input menu will not
be present.
Number of Points (npt)
Set the number of linearization points used in the Scale menu. 2 to 32
points may be used. The Scale menu is entered after entering the num-
ber of points
Minimum Input Span
The minimum input span is the minimum difference between input 1 and
input 2 signals required to complete the calibration or scaling of the
meter. The minimum span is 0.40 mA.
If the minimum span is not maintained, the meter reverts to input 2,
allowing the appropriate input signals to be applied.
d1
Press Enter to
Accept Setting
in2
Scale
Input 2
in1
Set Input 1
Value
SCL ENTER
0 4.00
Set Display 1
Value
Press Up to
Set Digit Value
Press Right to
Select Next Digit
Press Menu to
Exit at any Time
0 00.0
MENU
npt
0 0 2
Number of Points menu
not displayed for square
root input conditioning.
Set Number of
Scale Points