DH Instruments PPC2+, Manual

Page: 82 / 166

PPC2+™ Operation and Maintenance Manual
©2001 DH Instruments, Inc.
Page 74
The second selection <edit password>
displays the user password and allows it
to be edited. Passwords can be up to
six numbers in length and cannot start
with a zero.
9XMOKZK]]aY\NRK]LOOXOX^O\ON^RO_]O\VO`OVMKXXY^LOMRKXQONaS^RY_^
\OOX^O\SXQ^ROZK]]aY\N
If <0> is entered, then the password is made inactive and the user will not be
required to enter a password to access the user level menu. This is the
factory default with a security level of <2low>.
If there is an active password, the
PPC2+ password entry screen will
appear. The user must enter the user
defined password or the factory
secondary password to proceed
any further:
The first field <
nnnn
> is the serial number of the PPC2+, followed by a
second field <
xx
> that represents the number of times that a secondary
password has been used. This second field increments each time a
secondary password is used. The third field is where the user enters
the password.
>ROPKM^Y\c]OMYXNK\cZK]]aY\NS]K`KSVKLVOSXMK]O^RO_]O\]ZK]]aY\NRK]
LOOX WS]ZVKMON Y\ PY\QY^^OX 3^ MKX LO YL^KSXON Lc MYX^KM^SXQ .23
-_]^YWO\=O\`SMO >RO PKM^Y\c ]OMYXNK\c ZK]]aY\N S] NSPPO\OX^ PY\ KVV
::-]KXNMRKXQO]OKMR^SWOS^S]_]ON
3.4.4.7 ATM
m
PURPOSE
To view the value of atmospheric pressure as measured by the on-
board barometer.
In the PPC2+ BG0002 model, the on-board barometer measures the pressure on
the TEST(-) port (see the PPC2+ BG0002 Operation and Maintenance Manual).
m
PRINCIPLE
PPC2+ has an independent on-board barometer. The atmospheric pressure
measurements made by the on-board barometer are used only for dynamic
compensation of atmospheric pressure when using an absolute reference
pressure transducer to make gauge pressure measurements (see Sections 3.4.1,
PRINCIPLE and 1.2.6).
2edit password
Password:
pppppp