This section describes the connection of the gas inlet and exhaust tubes to the detector.

Parts required

  • Gas supply

  • Ventilation appliance

  • Parts for connecting the gas supply:

    • Gas inlet elbow connector

    • Gas inlet tubing

  • Parts for connecting the gas exhaust:

    • Gas exhaust elbow connector

    • Gas exhaust tubing

Tools required

Tubing cutter (optional)

Preparations

  1. Observe the site requirements for the gas supply and the ventilation (see Ventilation Requirements and Gas Supply Requirements).

  2. Check the gas tubes and elbow connectors. Observe the following:

    • Use only the gas tubes and elbow connectors that are shipped with the detector or additional or spare parts as recommended by Thermo Fisher Scientific.

    • The connectors must be free from contaminants. Even minute particles may cause damage to the system or lead to invalid test results.

    • Do not install gas tubes or connection unions that are stressed, nicked, kinked, or otherwise damaged.

Follow these steps

  1. Connect the gas inlet tubing to the gas supply and route it to the detector.

  2. Connect the gas exhaust tubing to the ventilation and route it to the detector.

  3. Check the length of the gas tubes.

    The gas tubes should not form siphons but go straight to the detector. If the gas tubes are longer than required, use a tubing cutter to cut the tubes straight to the required length. Make sure that the cut is at a right angle to the length of the gas tubes.

  4. Connect the gas tubes to the elbow connectors. Mind the correct orientation of the elbow connectors.

  1. Connect the gas inlet tubing to the gas inlet elbow connector.
  2. Connect the gas exhaust tubing to the gas exhaust elbow connector.
Connecting gas tubes to the elbow connectors
Figure: Connecting gas tubes to the elbow connectors

No.

Description

1

Connection stem to gas inlet port

2

Connector for gas inlet tubing

3

Gas inlet tubing

4

Connection stem to gas exhaust port

5

Connector for gas exhaust tubing

6

Gas exhaust tubing

  1. On the right side of the detector, connect the elbow connectors.

  1. On the left port (gas inlet), push the connection stem of the gas inlet elbow connector into the port.
  2. On the right port (gas exhaust), push the connection stem of the gas exhaust elbow connector into the port.
  3. Slightly pull on each elbow connector to check that they are properly locked in the ports. If an elbow connector slips out of a port, push it a little bit further into the port and repeat the check.
Pushing in the connection unions
Figure: Pushing in the connection unions

No.

Description

1

Gas inlet port

2

Gas inlet elbow connector with gas inlet tubing

3

Gas exhaust port

4

Gas exhaust elbow connector with gas exhaust tubing