Helios Large Display Dual Analog Input Rate/Totalizer Instruction Manual
PD2-6262
32
Scaling the Meter without a Signal Source
The process inputs (4-20 mA,
10 VDC) can be scaled to display the process variables in engineering
units. A signal source is not needed to scale the meter; simply program the inputs and corresponding
display values.
From the
INCAL
menu, select channel A or B, followed by
SCal-A
or
SCal-B
, and then set the signal input
value and display value for each of the scaling points (default is two).
Scaling the Meter for Channel A (
SCal-A
)
Scaling the Meter for Channel B (
SCal-B
)
Error Message (
Error
)
An error message indicates that the calibration or scaling process was not successful.
After the error message is displayed, the meter reverts to the input prior to the failure 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 input 2 signals required to
complete the calibration or scaling of the meter.
Input Range
Input 1 & Input 2 Span
4-20 mA
0.15 mA
10 VDC
0.01 VDC
