Precision Digital PD650 - Manual (Page 34)

Model PD650 Large Display Process Meter Instruction Manual
34
Scale or Calibrate the Meter
The meter may be scaled without applying an external signal source or calibrated
by applying an external signal source.
Scale Using Internal Calibration (I-CAL)
Note To simplify programming, write down the desired programming
values prior to attempting to program the meter. The Programmed
Parameter Settings form located at the back of this manual provides
a convenient method to record the user settings; it also provides the
factory setting for most of the programmable parameters.
Press ENTER, then press it again when the scale
(SCale) function appears.
SCale
Select calibration/scaling function
The display will show LInEAr for linear, SquArE for square
root, and Pro9 r for programmable root extraction.
To select a function, press ENTER when desired function is
displayed. The meter advances to setting the decimal point
for process/rate.
The programmable root function is used for open channel
flow measurement using weirs and flumes.
LInEAr
then
SquArE
then
Pro9 r
Select linear input
To select linear, press ENTER when LInear is displayed.
The meter will now advance to setting the decimal point for
process/rate.
LInEar
Set the process/rate decimal point
The decimal point will begin to scroll, and a zero will be
displayed for the sixth digit. Select decimal point location or
extra zero by pressing ENTER when decimal point is in the
required location or extra zero is displayed. If no decimal
point is required, press ENTER when the decimal point is
not shown.
2999.9
then
299990
then
2.9999
then
29.999
Select the number of calibration points
If ENTER is not pressed when no. pts is displayed, the
number of points will default to whatever was selected
previously. To program the number of calibration points,
press ENTER while no. pts is flashing. The current setting
for the number of points will flash. If this is the desired value,
press ENTER to accept it. If not, wait and the number will
increase. When the desired number of points is displayed,
press ENTER to accept it.
No. pts
then
2
then
3
….
11