ACOEM Met One Instruments GAS-1060, Руководство пользователя

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Service Page 109
Procedure
1. Turn off the external pump (if an internal pump is installed refer to Section 8.2.3) and allow the
instrument to return to ambient.
2. Loosen the Kynar nuts from both ends of the background DAU.
3. Remove and replace the background DAU (refer to Figure 54) and tighten the Kynar nuts finger
tight.
Figure 55 – Background DAU
6.3.6 Leak Check
Equipment Required

Source of Vacuum (pump)

Leak Test Jig (PN: H050069)

Kynar ¼” Blocker Nuts

Tubing and Assorted Fittings

5/8” Spanner

9/16” Spanner
Procedure
Note: Ensure that the instrument has been running for at least one hour before this procedure is
performed.
1. Disconnect all external tubing connected to the rear ports of the instrument.
2. Connect a leak check jig to the Exhaust Port of the instrument.
3. Connect a vacuum source to the shut off valve end of the leak test jig ensuring the shut off valve
is in the open position.
4. Open - Main Menu

Service Menu

Diagnostics Menu

Valve Menu .
5. Disable - Valve Sequencing

Disabled .
6. Turn Off all the valves