Precision Digital Corporation ProtEX-MAX PD8-6100, Instruction Manual

Page: 57 / 64

ProtEX-MAX PD8-6100 Strain Gauge, Load Cell, and mV Meter
Instruction Manual
57
Function Keys Operation
During operation, the programmable function keys
operate according to the way they have been
programmed in the
Advanced Features
– User
menu.
See Programmable Function Keys User Menu (
user
)
on page 54 for details.
The table above shows the factory default settings for
F1, F2, and F3.
Digital Inputs Operation
Five (5) digital inputs, F4, DI-1 to DI-4, come standard
on the meter. These digital inputs are programmed
identically to function keys F1, F2, and F3. The inputs
are triggered with a contact closure to +5 V in the
case of digital inputs 1-4 or with an active high signal,
see
Digital I/O Connections on page 29 for details.
The F4 is triggered with a contact closure to COM or
with an active low signal. During operation, digital
inputs operate according to the way they are
programmed in the Advanced Features
– User menu.
See Programmable Function Keys User Menu (
user
)
on page 54 for details.
Maximum/Minimum Readings
The max & min readings (peak & valley) reached by
the process can be displayed either continuously or
momentary:
1. Display briefly by assigning to the F1-F3 function
keys or to the digital inputs in the User menu.
Any of the F1-F3 function keys (buttons) and the
digital inputs can be programmed to reset the
max & min readings.
2. Display continuously by assigning either display
to max/min through the Display menu.
To display max reading using function key:
1. Press user assigned function key/digital input to
display maximum reading since the last
reset/power-up.
2. To reset max/min, press the Menu button, then
the Up arrow/F2 button until the Reset (
Reset
)
menu is displayed.
3. Press the Up arrow/F2 button to select reset high
(
rst Hi
), reset low (
rst Lo
), or reset high and
low (
rst HL
) is displayed and then press the
Enter/F3 button. The max and/or min displays are
reset to actual values.
4. Press Menu to exit max/min display reading.
To display max/min readings continuously:
Assign either display to Max (
d Hi
), Min (
d Lo
), or
toggle between Max and Min (
d HL
) every
10 seconds.