Ametek IPS-4-UV, Руководство пользователя

Страница: 110 / 200

5-4 | IPS-4-UV Analyzer-GPDiv2
Frequency Task
Monthly Pressure Readings
Check the Aspirator, Pneumatic Valve/Zero, and Manifold pressure
readings from the
STATUS screen.
Aspirator pressure should be set higher than 70 kPa (10 psi) above
the sample stream pressure.
Pneumatic Valve/Zero supply pressure should be set in the range
of 420–560 kPa (60–80 psig), typically 560 kPa (80 psig) for high
pressure applications. For the Zero supply, the pressure should be
set to approximately 140 kPa (20 psig) above the sample stream
pressure.
Manifold pressure should be set approximately 560–700 kPa
(80–100 psig). Refer to “Adjusting the Sample Flow Rate” in Chap-
ter 3 for more details.
CAUTION:
To avoid damaging the pressure transducer, do not set the pressure
higher than the sample system rating
.
Every Three Months Outdoor Systems
If your analyzer system is installed outdoors, check the condition
of the seals on the doors. These seals are essential in the analyzer
maintaining its IP65 and NEMA 4 rating.
The secondary gaskets (with the wire mesh) on the door are used
for electrical contact between each door and its enclosure. Ensure
these gaskets are intact.
If the seals are damaged, cracked, or show signs of wear, replace
them immediately. Contact AMETEK for assistance.
Every Six Months Sheltered Systems
If your analyzer system is installed in a custom shelter, check the
air fi lters for the shelter purge and air conditioning systems and
replace them if necessary. Depending on the location of the site
and its environmental conditions, it may be necessary to check and
replace these fi lters more frequently.
Every Six Months Sample/Vent Lines
Inspect the Sample Line and Vent Line for sags, sharp bends, or
damage to the outer skin. If necessary, take appropriate safety pre-
cautions and replace the lines. Perform a leak check on all associ-
ated fi ttings after replacing any line(s).
Every Year Measuring Cell
Clean the Measuring Cell and the rest of the analyzer sample sys-
tem. This schedule is a minimum requirement. If other conditions
are found to be present, as outlined in this chapter under “Measur-
ing Cell Preventive Maintenance,” cleaning may be required more
frequently.
At the same time, replace the o-rings (always) and windows and/or
window/mirror combinations (if chipped, cracked, or scratched).
18–24 Months Xenon Flash Lamp
Replace the lamp. The lamp may need to be replaced sooner if
information from the analyzer diagnostics indicates related alarms.
Refer to “Replacing the Xenon Flash Lamp Assembly” in this chap-
ter.