Chapter 7: Changing GX-3R (Pro) Parameters • 91
Deselected
(factory setting): The GX-3R (Pro) will not give an indication at start up if it is due for
bump testing.
Bump Test Interval (Day)
The
Bump Test Interval
defines the amount of time between bump tests. The time can be set between
0
and
30
days in 1 day increments. The factory setting is
30
days.
Bump Test Past Due Act
Confirm to Bump Test
(factory setting): The GX-3R (Pro) will sound an alarm and the user will have
to press and release the AIR button to continue.
Must Bump Test
: The GX-3R (Pro) cannot be used until a bump test has been performed.
Notification Only
: The GX-3R (Pro) will display that a bump test is due but will continue with the
warm up sequence. See the GX-3R (Pro) Operator’s Manual for a description of the start up sequence.
Bump Check Gas (GX-3R Pro Only)
4 GAS
: The bump test dates for only the standard 4 sensors (LEL, O
2
, H
2
S, and CO) are used to
determine if a bump test is due.
ALL
(factory setting): The bump test dates for the standard 4 sensors along with the IR CO
2
or super
toxic sensor are used to determine if a bump test is due.
Bump Test Time (Sec)
The
Bump Test Time
parameter is the amount of time that the GX-3R (Pro) is exposed to gas during a
bump test. The available choices are
30
(factory setting),
45
,
60
, and
90
seconds.
Calibration After Bump Test Failed
Selected
(factory setting): If a bump test fails, the GX-3R (Pro) will automatically begin a calibration.
Deselected
: When a bump test fails, nothing will happen.
Bump Test Threshold (%)
The
Bump Test Threshold
parameter is the bump test tolerance value and is represented as a
percentage. It is the percentage that the bump test reading can differ from the actual gas concentration.
If the bump test reading differs more, the bump test will fail. The available values are
10%
,
20%
,
30%
,
40%
, and
50%
(factory setting).
Calibration Time (sec) After Bump Test Failed
The
Calibration Time After Bump Test Failed
parameter is the total time the GX-3R (Pro) is
exposed to calibration gas when a bump test fails if
Calibration After Bump Test Failed
is selected.
The bump test time is deducted from the calibration time. For example, if
Calibration Time After
Bump Test Failed
is set to 90 seconds and the
Bump Test Time
is set to 30 seconds, if the bump test
fails, the GX-3R (Pro) will only be exposed to gas for an additional 60 seconds. The available values