Omega HHP8200 Series, User Manual, Page: 6 / 20

12.
"
+
"
: Positive pressure hoseplug.
13.
"
-
"
: Negative pressure hoseplug.
14.
Hold
: Freezes pressure reading.
15.
REL
: Establish a relative zero for the primary screen information. (N/A)
Controls
2
Section 2.2 - Auto Power Off (Sleep Function)
This instrument will automatically shut off in approx. 20 minutes for every
power on.
For recording or operating over longer periods of time, you can disable the sleep
mode by pressing and simultaneously before power on.
An
"
n"
will appear in the middle of the screen at which time you can release the
button. (see Fig. A) The disable sleep mode will be invalid after powering
off.
6