Precision Digital Corporation ProtEX-MAX PD8-6100, Инструкция по эксплуатации

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ProtEX-MAX PD8-6100 Strain Gauge, Load Cell, and mV Meter
Instruction Manual
56
Meter Operation
When installed, the primary way to operate the meter
is with the SafeTouch through-glass buttons that allow
the user to perform various operations without
removing the cover and exposing the electronics to
the hazardous environment. The user can also
operate the meter by connecting a hazardous
area-approved control station or switch to one of the
digital inputs. These can be used to perform various
operations on the meter based on the Programmable
Function Keys. Finally, certain operations can be
performed on the meter with MeterView Pro software
or through Modbus commands.
The three default operations that can be performed
with the mete
r’s SafeTouch buttons are:
1. Zero the meter
2. Reset the tare
3. Tare the display value
In addition, the user can program the SafeTouch
Buttons to perform a variety of useful operations by
reassigning them to other functions per
Function Keys
& Digital I/O Available Settings on page 54 .
Button Operation
The following table shows the default operations for
the F1, F2, and F3 SafeTouch Buttons: zero the
meter, reset the tare, and tare the display value.
Button Symbol Description
Press to enter or exit
Programming Mode or view
settings
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 parameter/
function assigned through the
User menu
To learn more about SafeTouch buttons,
see this video:
predig.com/videos/Safetouch_Buttons
SafeTouch Buttons
The ProtEX-MAX is equipped with four 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 DISABLE on the switch labeled
NO-CONTACT BUTTONS located on the
connector board.
To actuate a button, press one finger to the glass
directly over the marked button area. Then retract
finger more than three inches from the glass before
pressing the next button. When the cover is removed,
the four mechanical buttons located next to the
sensors are used. The sensors are disabled when a
mechanical button is pressed and will automatically
be re-enabled after 60 seconds of inactivity.
The SafeTouch Buttons are designed to filter normal
levels of ambient interference and to protect against
false triggering, however, it is recommended that the
SafeTouch Buttons be disabled (slide switch to
DISABLE) if there is an infrared interference source in
line-of-sight to the display.
The SafeTouch Buttons are configured by default to
duplicate the function of the front panel mechanical
pushbuttons associated with the integrated controller.
The symbols by each SafeTouch button correspond
to a mechanical button as shown in the table to the
left.
SafeTouch Button Tips:
•
To the extent possible, install the display facing
away from sunlight, windows, reflective objects
and any sources of infrared interference.
•
Keep the glass window clean.
•
Tighten the cover securely.
•
Use a password to prevent tampering.
Watch Batch Control Video at
www.predig.com/videos/KN6Y6R0I1OE