The instrument shipment includes the necessary gas tubing for a standard installation. If the location of your gas supply exceeds the length of the provided tubing, you must provide suitable tubing for the gas connections. You are also responsible for supplying any additional fittings or connections necessary during the installation. If your system includes additional devices that require their own gas connections, refer to those instruments’ manuals.

CAUTION

Contaminants in the laboratory gas lines can cause damage to the instrument. Make sure that all gas lines have been cleaned of all particulates and oils. You must use either copper (provided) or stainless steel for the UHP gas lines. Avoid using particulate filters because they can be a source of contamination. You are responsible for any damage to the instrument caused by contaminants introduced from your gas delivery system.

IMPORTANT

  • Do not turn off the gases when the MS is in operation. Optimum performance requires a continuous gas flow.
  • Do not turn off the UHP nitrogen gas unless you have vented the MS.
  • If you intend to use helium gas for sparging your LC solvents, you must have a second tank and regulator.

 

The following figure shows the gas inlets on the left side of the MS.

Figure Gas inlets on the left side of the MS


The following figure shows the Swagelok™ fitting and ferrule set.

Figure Swagelok fitting and ferrule, 1/8 in. ID

NOTE

Finger tighten the Swaglok fittings on the gas inlet, then use an open wrench to tighten the fitting by another 1/8 to 1/4 turn. Do not overtighten the fittings.

 

Procedure

  1. Prepare the HP nitrogen gas line using Teflon™ PFA tubing as follows:
  2. a. Cut an appropriate length of the Teflon PFA tubing, as needed.
  3. b. Push one end into the Nitrogen In inlet.
  4. c. On the opposite end, use an appropriate fitting to attach the line to your HP nitrogen gas supply.
  5. Prepare the UHP nitrogen gas line using copper tubing as follows:
  6. a. Cut an appropriate length of the copper tubing, as needed.
  7. b. Use a 1/8 in. ID Swagelok type nut and ferrule set to connect the tubing to the UHP Nitrogen inlet.
  8. c. On the opposite end, use an appropriate fitting to attach the line to your UHP nitrogen gas supply.
  9. Prepare the UHP helium gas line using copper tubing:
  10. a. Cut an appropriate length of the copper tubing, as needed.
  11. b. Use a 1/8 in. ID Swagelok type nut and ferrule set to connect the tubing to the Helium In inlet.
  12. c. On the opposite end, use an appropriate fitting to attach the line to your UHP helium gas supply.