ACM 150
49
Maintaining AC power
Most users want the ACM 150 monitor to continue to operate when line power
is interrupted. The monitor may be wired to either a UPS, Uninterruptable Power
Supply, or to an Emergency Power source.
Utility gases and exhaust piping
Nitrogen supply
The ACM 150 monitor requires a constant supply of nitrogen, which is used as a
dry purge gas for the optics bench and as a zero gas for the Background cycle. The
requirements are:
Source
plant bulk nitrogen supply or N
2
cylinders
Quality
99.9% or better
External Pressure Regulator/Shut-off
located near the ACM 150 monitor (by
installation contractor)
Delivery Pressure
set external regulator to 5 psig (0.35 kg/
cm
2
)
Connection
1/4 inch tube fitting (per
Figure 25
)
Consumption
less than 8 liters/minute, intermittent
Air supply
Compressed air is required to operate the venturi pumps. It is also used for the
optional Line Leak Test:
Source
clean, dry compressed air (CDA) or instrument-grade
air
External Pressure
Regulator/Shut-off
locate near the ACM 150 monitor (by installation
contractor)
Quality
filtered and oil-free with a dew point of -20°F (-29°C)
Pressure
65-70 psig set on the internal regulator (included)
Connection
3/8 inch tube fitting (per
Figure 25
)
Consumption
venturi pumps 12 scfm (340 lpm)
CAUTION!
High pressure air is used inside the venturi pumps and can be hazardous. Shut
off the air supply and verify that no stored pressure is present before servicing
the venturi pumps.
MISE EN GARDE!
L'air à haute pression est utilisé à l'intérieur des pompes venturi et peut être
dangereux . Fermer l'alimentation en air et vérifier qu'aucune pression stockée est
présent avant l'entretien les pompes à venturi.
Содержание ACM 150
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Страница 29: ...ACM 150 29 Figure 15 Relay output board ...
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Страница 156: ...ACM 150 Air Composition Monitor Revision 2 ECO HAA150063 December 2015 Honeywell Analytics ...