PD8-6060 Explosion-Proof Dual Analog Input Process Meter
Instruction Manual
60
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 suitable control
station or switch to one of the digital inputs that 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 though Modbus
®
commands.
The two default operations that can be performed with
the meter’s SafeTouch buttons are:
1. Display the maximum and minimum readings
2. Acknowledge the relays
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
Button Operation
The following table shows the default operations for
the F1, F2, and F3 SafeTouch Buttons, Displaying
and resetting the maximum and minimum values and
resetting the relays:
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 meter.
The symbols by each SafeTouch button correspond
to a mechanical button as shown in the above table.
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.
Button Symbol
Description
Press to enter or exit
Programming Mode, view
settings, or exit max/min
readings
Press to reset max/min readings
or other parameter/function
assigned through the
User
menu
Press to display max/min
readings or other
parameter/function assigned
through the
User
menu
Press to acknowledge relays or
other parameters/function
assigned through the
User
menu
