Tare & Down  Key; Prgm & Enter  Key; Backlight Key - Omega HHP360 Series User Manual

TARE & DOWN  KEY
In the Measure Mode toggles on/off the Tare function. The Tare
function is designed to set the display value to "0". With Tare
activated, the letter "T" appears in the lower left of the display.
The  key is used to scroll through programmable registers with
the unit in the Program Mode. Once a programmable register is
selected the  key can be used to edit that register.
PRGM & ENTER  KEY
Puts the manometer into the Program Mode from the Measure
Mode. When in the Program Mode, pressing this key selects the
programmable register to be edited (with prompt for password if
Lockout is set). After the register has been edited, pressing the
PRGM key enters the new setting into the manometer's non-
volatile memory. This key also acts as a  key when editing user
input such as the header name and user units.

BACKLIGHT KEY

The BACKLIGHT key, represented by the standard light bulb
symbol, toggles the display backlight between green and off.
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