ProtEX-MAX PD8-6210 Explosion-Proof Analog Input Batch Controller
Instruction Manual
53
Controller Operation
When installed, the primary way to operate the
controller 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 controller 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 controller based on the
Programmable Function Keys. Finally, certain
operations can be performed on the controller with
MeterView Pro software or through Modbus
commands.
The three default operations that can be performed
with the controller’s SafeTouch buttons are:
1. Set the batch size
2. Start the batch
3. Pause/Stop the batch
In addition, the user can program the SafeTouch
Buttons to perform a variety of useful operations by
reassigning them to other functions per
& Digital I/O Available Settings
Watch Batch Control Video at
www.predig.com/videos/KN6Y6R0I1OE
Button Operation
The following table shows the default operations for
the F1, F2, and F3 SafeTouch Buttons: setting the
batch size, starting the batch, and stopping the batch.
Button Symbol
Description
Press to enter or exit
Programming Mode or view
settings
Press to start the batch or
other function assigned
through the
User
menu
Press to set the batch size or
other function assigned
through the
User
menu
Press to pause/stop the batch
or other 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.
Default Batch Control Operation
The following describes the operation of the three front
panel operating keys as programmed with default
settings.
