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9.2.
Decontamination / Decommissioning Procedures
9.2.1. Purpose
To establish a safe procedure for decontamination and the eventual decommissioning of
the ACM 150 monitor at a customer’s site.
9.2.2. Procedures
Wear appropriate Personal Protective Equipment. Standard Nitrile gloves are
recommended.
1. Disconnect all gas sample lines from the fittings on the top of the ACM 150 monitor.
2. Allow the ACM 150 monitor to run in automatic sampling mode for 60 minutes to
purge any residual gases in the system. The automatic mode should include the
sample ports enabled during regular monitoring operations.
3. Shut off the CDA supply. The backup exhaust pump should automatically turn on.
Allow to run for 10 minutes.
4. Shut down the ACM 150 monitor by turning off the power at the disconnect switch—
Lock out and tag out the electrical supply at the facility connection.
5. Shut off the nitrogen supply. Verify that the pressure in the CDA and nitrogen supply
has been relieved. Disconnect both the CDA and nitrogen supply lines.
6. Remove and disconnect all electrical power and communications lines.
7. Remove and replace the sample filter in the lower pump cabinet. The lower cabinet's
panels are removable for access.
8. Inspect and clean the optics bench components, such as the sample cell, windows,
and mirrors.
9. If moving the ACM 150 monitor, lock both the sliding optics bench drawer and the
pump assembly drawer by installing the appropriately sized screws through the
drawer plates and into the lock brackets.
10. Reinstall all outer panels removed during cleaning and close and latch the outer
doors.
11. If decommissioning, please recycle all applicable parts. These might include the
steel chassis, circuit boards, etc.
12. Please dispose of the decontaminated unit according to all applicable local
requirements.
NOTE
When not powered, the FTIR optics bench absorbs ambient moisture. Extended
storage periods will degrade the bench's performance and may result in non-
operation. Storing an ACM 150 in high ambient humidity environments is not
recommended.
9.3.
Inspection and service schedule
The ACM 150 monitor constantly monitors itself for proper operation. Problems are
identified as Service Events, and they change Service Status. At the same time, relays
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