GT-FIRE
PORTABLE GAS DETECTOR
67816
Revision D
42
7. Bump Test
A Bump Test verifies sensor response and alarm operation by exposing the monitor to a known
concentration of gas.
Press and hold both the LH
and the RH
buttons to enter the mode selection menu and then
select ‘BUMP TEST’ (as shown in
Figure 51: Modes of Operation
).
Figure 51: Modes of Operation
7.1. Bump Test Process
The first bump test mode screen is shown in
Figure 52: CalGas Selection
.
Figure 52: CalGas Selection
Note: Bump Test mode will only display gas ranges configured in the monitor.
Multiple gas cylinders may be required to fully bump test the monitor.
Each gas cylinder used is referenced using a CalGas number.
For example:
• CalGas1 - Methane PPM
• CalGas2 - Combi Cylinder (Methane LEL / CO / H
2
S)
1. The current CalGas selection number is highlighted. A different CalGas number can be selected
by pressing the UP
or DOWN
buttons.
In the example in
Figure 53: Example CalGas Cylinder
, a combi cylinder is assigned to
CalGas2.
Figure 53: Example CalGas Cylinder
