PD6800 Loop-Powered Process Meter Instruction Manual
16
SafeTouch
®
Buttons
The PD6800 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 the LOCK setting on the switch located on the connector board in the base
of the enclosure. To actuate a button, press one finger to the glass directly over the
marked button area. 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 LOCK) if there is an infrared
interference source in line-of-sight to the display.
SafeTouch
®
Button Tips:
To remove cover with power applied (safe area only), or to clean the window,
select
SERVICE
in the main menu before opening the cover. This will temporarily
disable the SafeTouch
®
buttons for 60 seconds to prevent inadvertent use. Use
the mechanical buttons while the meter is open.
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.
After all connections have been completed and verified, apply power to the loop.
