Fuel Refilling Procedure - Thermo Scientific TVA2020 Instruction Manual

Preventive Maintenance
Hydrogen Gas Tank
Fuel Refilling
Procedure
5-6 TVA2020 Instruction Manual
CAUTION Observe all hydrogen handling procedures listed below.
Note When transporting the instrument, remove the hydrogen tank and
place it in its normal location in the carrying case.
Use the following procedure to refill the hydrogen tank.
Note All hydrogen fittings are left hand thread — do not overtighten.
1. Turn supply tank valve OFF.
2. Attach tank fill adapter to supply tank with valve OFF and with
manifold valve on OFF position.
3. Attach TVA2020 hydrogen tank to tank fill adapter. (Note left hand
thread — do not overtighten.)
4. Open supply tank valve. Move fill adapter valve to FILL position.
5. Wait for TVA2020 tank to fill. This may take 2 to 3 minutes because
of flow restrictors in the tank and fill adapter.
6. Close fill adapter valve.
7. Remove TVA2020 tank.
8. Close supply tank valve.
9. Remove tank fill adapter.
Always remove the tank from the instrument before storing in the
instrument carrying case.
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