Gas Inlet Configuration
The back of G7 Dock has a Gas out exhaust and four gas inlets with quick‑connects. The inlets are pre-programmed for you. For more information on configuring Dock, see G7 Dock Configuration.
When looking at the back of G7 Dock, the Gas out exhaust is the connector on the far-left side of the dock. It is used to transfer calibration gas to a safe exhaust location.
The next three inlets (to the right of the Gas out exhaust) are configured to support your selected gases and gas mixtures.
Inlet 1 and Reactive Gases
When G7 Dock is first shipped from Blackline Safety, the default setting for inlet 1 is for multi-gas. Unlike inlets 2 and 3, inlet 1 is specially designed for use with reactive gases, such as Chlorine (Cl2), but can also be used for non-reactive gases. (Inlets 2 and 3 are designed for non-reactive gases only.) If you monitor for a reactive gas, you must change the Dock inlet 1 configuration in Blackline Live for the specific reactive gas. See Reactive Gases for more details.
The following table shows an example of a configuration with and without Chlorine (Cl2). Your configuration may be different depending on the gases configured in Blackline Live for your site.
Inlet 4 — Purge
Inlet 4 is configured as a purge inlet, supplying clean air or a configured gas to remove residual gas from G7 Dock. When using dock in dusty or humid environments, you can attach the optional dock filter subassembly to the purge inlet to ensure dock is being purged with clean air.
The dock filter subassembly is made up of four pieces:
-
a disposable filter
-
a luer fitting
-
2” tube
-
a male quick connect
You may need to replace the filter piece as it absorbs contaminants from the air.
