PD6801 Explosion-Proof Loop-Powered Feet & Inches Level Meter
Instruction Manual
12
Setup and Programming
There is
no need to recalibrate
the meter for
milliamps when first received from the factory.
The meter is
factory calibrated
for milliamps prior to
shipment. The calibration equipment is traceable to
NIST standards.
Overview
Setup and programming is done through the infrared
through-glass SafeTouch buttons or using the
mechanical buttons when uncovered. There are two
slide switches located on the connector board. One is
used to select backlight power and the other is to lock
or unlock the SafeTouch Buttons.
After all connections have been completed and
verified, connect the ribbon cable to the display
module, fasten the display module to the base, install
enclosure cover, and then apply power.
SafeTouch Buttons
The PD6801 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 SAFE-TOUCH
BUTTONS switch located on the connector board in
the base of the enclosure.
SafeTouch Button Operation
To actuate a button, press and remove one finger
to the glass directly over the marked button area.
Remove finger to at least 4 inches away from the
glass in between button activations. SafeTouch and
mechanical buttons may be held to cycle through
menus or digits in place of repeatedly pushing a
button. The sensors are disabled when a mechanical
button is pressed and will automatically be re-enabled
after 60 seconds of inactivity.
SafeTouch Button Tips and
Troubleshooting
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 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.
•
If the cover has not been installed and secured
tightly, it may take a moment for the SafeTouch
buttons to properly self-calibrate when the cover
is tightened.
•
SafeTouch buttons will not work if two or more
buttons are detected as being pressed
simultaneously. As a result, be careful to avoid
triggering multiple buttons or reaching across one
button location to press another.