Precision Digital PD6100 - Manual (Page 85)

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual
85
METER OPERATION
The meter is capable of accepting any signal from -250 to 250 mV in
bipolar mode, or 0 to 300 mV in unipolar mode, and displaying these
signals in engineering units from -99999 to 999999 (e.g. a 0-100 mV
signal could be displayed as 0 to 50000). The dual-line display can be
customized by the user to operate in such a way as to satisfy a specific
application. Typically the upper display is used for the process variable;
while the lower display is used for engineering units, custom legend, or
set point indication.
The input signal can be scaled to display the process in two different
scales; for example the upper display could indicate weight in pounds
and the lower display could indicate percent of maximum weight
capacity. The meter can also be set up to display the analog input on
the upper display and the Modbus input on the lower display. The relays
and analog output can be programmed to operate from the Modbus PV
input if the Modbus input has been assigned to the big (main) display.
During operation, the meter can be either tared or zeroed. The tare
feature is useful for momentarily zeroing out of the display, in the case
where there is additional weight than what is intended to be measured
(e.g. a bucket on the scale is being filled with material). The meter will
display a T to indicate that the display has been tared and taring is
resettable via the reset tare operation. The zero feature is useful for
permanent zeroing of the meter, in the case where there has been drift
in the strain gauge output over time. The zero feature will zero out the
display without indication or the ability to reset.
Front Panel Buttons Operation
Button Description
Press to enter or exit Programming Mode
Press to zero the meter or other parameter/
function assigned through the User menu
Press to reset tare or other parameter/function
assigned through the User menu
Press to tare the display value or other
parameters/function assigned through the
User
menu
Function Keys Operation
During operation, the programmable function keys operate according to
the way they have been programmed in the Advanced Features – User
menu.
The table above shows the factory default settings for F1, F2, and F3.