The gas type for bump tests is defined by setting the dipswitch within the GasAlertClip Extreme docking module.

Table 15. Dip Switch Settings

Gas Type	Dip Switch Setting
Sulphur dioxide (SO2)
Oxygen (O2)
Hydrogen sulfide (H2S)
Carbon monoxide (CO)

To change the dipswitch setting on a GasAlertClip Extreme docking module refer to Tables 15 and 16, Figures 16 and 17, and complete the following:

1. Deactivate the base station.
2. Remove the three Phillips pan-head screws from the front and the six Phillips flat-head screws from the back cover plate.
3. Gently separate the docking module from the base station or other docking modules. Refer to Figure 16.
4. Configure the gas type by setting the dip switches to the desired gas. Refer to Table 15. for gas type and dip switch settings.
5. Reconnect the GasAlertClip Extreme docking module. Refer to Figure 17.
   Refer to Table 12. for torque specifications.
6. Fasten the bottom cover plate using the six Phillips flat-head screws. Fasten the remaining three Phillips pan-head screws to the top of the docking module.

Table 16. Changing Dip Switch Settings

Item	Description
1	Bottom cover plate
2	Phillips flat-head screw (6)
3	Phillips pan-head screw (3)
4	Barbed fitting ports
5	Dip switch

Note

When reattaching the docking module, ensure the barbed tubing is inserted correctly. Ensure to correctly label the gas type on the docking module.

Figure 16. Detaching the GasAlertClip Extreme Module

Figure 17. Changing Dip Switch Settings