Precision Digital Corporation PD6900 Series, Инструкция по эксплуатации

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PD6928 Ex-Proof & I.S. Loop-Powered Flow Rate/Totalizer Instruction Manual
69
Meter
Operation
The meter is equipped with four CapTouch through-
glass buttons. These buttons allow meter operation
without removing the cover and exposing the
electronics in a hazardous area.
Three CapTouch buttons labeled F1, F2, and F3 can
be programmed as function keys to perform a variety
of meter functions simply by pressing on the glass
over the button. These include resetting the total,
resetting the meter’s relays or open collectors,
starting and stopping timers, displaying max/min
values and starting/stopping batches. See
Function
Keys & Digital Input Available Settings on page 66 for
a complete list of settings available.
A digital input is available on the meter, and it may
function in a similar fashion as the function keys to
allow remote operation of a single task.
The max & min readings (peak & valley) reached by
the process can be displayed either continuously by
assigning it to a display line in the
Display menu, or
momentarily by pressing the F1 key (default) or
assign it to any of the other function keys or the digital
input.
Pressing the F1 key cycles through various display
values (e.g. Grand total, max, min); press the Enter
key to lock the display in the current process value
and press the Enter key again to unlock the display.
The relay information menu shows runtime and cycle
count for each relay.
Change the display units within the selected unit class
at any time without the need to re-scale the meter.
Select the desired units via the
UNITS
menu in the
DISPLAY
menu, and the meter automatically converts
the display values to the new unit of measure.
CapTouch Buttons Operation
Button Description
(Default Settings)
Press to enter or exit Programming
Mode , view settings, or exit max/min
readings.
Press to display grand total. Continue
pressing to cycle through max, min,
rate, and total displays.
Press to access the Reset menu.
Press F1 to scroll through the options.
Press F3 to reset the currently
displayed parameter.
Press to acknowledge all manually
resettable relays or open collectors.
Press to lock/unlock the display value
after pressing the F1 key.
CapTouch Buttons
The PD6928 is equipped with four capacitive sensors
that operate as through-glass buttons so that it can be
programmed and operated without removing the
cover (and exposing the electronics) in a hazardous
area.
These buttons can be disabled for security by
selecting the Lock setting on the switch located on the
side of the display module, close to the Menu button.
To actuate a button, press one finger to the window
directly over the marked button area. When the cover
is removed, the CapTouch buttons can be used after
the meter completes a self-calibrating routine (hand
symbol flashes). The sensors are disabled when more
than one button is pressed, and they will automatically
re-enable after a few seconds (hand symbol off).
CapTouch Button Tips &
Troubleshooting
The CapTouch buttons are designed to work under
any lighting condition and to protect against false
triggering. If the CapTouch buttons are not needed
during operation, they can be disabled (slide switch to
Lock).
•
To remove cover with power applied (safe area
only) or to clean the window, place your hand
over the buttons; this will temporarily disable the
CapTouch buttons to prevent inadvertent use.
•
Keep the window clean.
•
Tighten the cover securely.
•
Use a password to prevent tampering.
•
CapTouch buttons will not work if two or more
buttons are detected as being pressed
simultaneously. Be careful to avoid triggering
multiple buttons or reaching across one button
location to press another.