P
RO
V
U
™ PD6310-WM NTEP Certified Pulse Input Batch Controller
Instruction Manual
29
Scaling the Controller (
SCALE
)
The frequency inputs 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.
Note: The display values (
DiS 1
and
DiS 2
) need to
be in units of measure per second. For example, if the
rate at 1000 Hz is 13.2 gal/min, this must be
converted to gal/sec. In this scenario, the numbers
input into the
SCALE
menu would be as follows:
InP 1
: 0.0
DiS 1
: 0.000
InP 2
: 1000.0
DiS 2
: 0.220
For instructions on how to program numeric values
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 allowed input span is 0.10 Hz, which is
the minimum difference between input 1 and input 2
signals required to complete the calibration or scaling
of the controller.
Time Base, Total Conversion
Factor & Total Reset
The time base, total conversion factor, and total reset
menus are located in the
Program
menu.
The total and grand total have their own independent
settings. This means that one can be displaying the
value in gallons while the other displays in million
gallons, liters, m
3
, etc.
Time Base
The time base is the amount of time over which the
rate parameter should accrue. For example, if the rate
was ten and the time base was in minutes, then the
total would increase by ten every one minute.
Total & Grand Total
Conversion Factor
The total & grand total conversion factor is the
amount by which the rate is multiplied before it is
added to the total or grand total.
For Example, if the rate was ten per second and the
total conversion factor was 100, the total would
increase by 1000 every second. This is useful, for
instance, if you want to show rate in gallons and total
in thousands of gallons.
