34 • Chapter 5: User Mode and Calibration
GasWatch 3 for CO and O
2
CAL SET (cont’d)
CAL.EXPD
(pg.58)
Defines what action must be taken if a calibration is due upon startup.
CONFIRM
(factory setting): Press and release AIR to acknowledge
that calibration is due and continue to Measuring Mode.
CANT.USE
: Cannot enter Measuring Mode until a successful calibra
-
tion is performed.
NONE
: A screen indicates that calibration is due but warmup sequence
continues.
ESCAPE
Return to the
CAL SET
item in User Mode.
BUMP.SET
(pg.59)
Change parameters related to bump testing.
SETTING
(pg.59)
GAS.TIME
How long gas is applied during a bump test.
Choices:
30
(factory setting),
45
,
60
,
90
seconds
CHECK
Percentage of calibration gas concentration that the
bump test reading must be within in order to pass bump.
Options:
10%
,
20%
,
30%
,
40%
,
50%
(factory setting)
CAL.TIME
How long gas is applied during a calibration.
GAS.TIME
is deducted from this time.
Options:
90
(factory setting) or
120
seconds
A-CAL
ON
(factory setting): If a bump test fails, a calibration
automatically starts.
OFF
: If a bump test fails, a calibration does not auto
-
matically start.
ESCAPE
Return to the
SETTING
item in the
BUMP SET
menu.
BP.RMDR
(pg.61)
ON
: The instrument notifies the user upon startup when a bump test is
due. Notification type depends on
BP.EXPD
setting below.
BP.DATA
screen appears in Display Mode.
OFF
(factory setting): No notification upon startup when a bump test is
due.
BP.DATA
screen does not appear in Display Mode.
BP.INT
(pg.62)
How often the instrument needs to be bump tested.
Options:
0
-
30
days (factory setting is
30
days)
BP.EXPD
(pg.62)
Defines what action must be taken if a bump test is due upon startup.
CONFIRM
(factory setting): Press and release AIR to acknowledge
that bump test is due and continue to Measuring Mode.
CANT.USE
: Cannot enter Measuring Mode until a successful bump test
is performed.
NONE
: A screen indicates that bump test is due but warmup sequence
continues.
ESCAPE
Return to the
BUMP SET
item in User Mode.
ALARM-P
(pg.63)
Set alarm points (WARNING, ALARM, ALARM H, STEL, TWA) and/or reset all alarms
to their default settings.
LUNCH (pg.65)
ON
: Lunch break feature is on. Instrument asks if you want to resume TWA and PEAK
readings at startup.
OFF
(factory setting): Lunch break feature is off. Instrument resets TWA and PEAK read
-
ings every time it’s turned on.
Table 8: User Mode Menu Items
User Mode
Menu Item
Description
