I
NSTALLATION
748332-D Rosemount Analytical June 1997
2-5
NGA Non-Dispersive Infrared Analyzer
2.5 ELECTRICAL CONNECTIONS
Note
Electrical connections must be in compliance with National Electrical Code
(ANSI/NFPA 70) and/or any applicable national or electrical codes.
Two electrical connections are required on the Analyzer Module; POWER and
NETWORK. See Figure 2-4. On the Analyzer Module, two NETWORK connections
are available, either of which is appropriate for : 1) interconnection with Backplane of
the Platform (see Platform instruction manual) or 2) "daisy chaining" with other NGA
2000 components.
Connect Analyzer Module POWER 24 VDC power source, either the Platform or
external power source.
F
IGURE
2-3. NDIR B
ACK
P
ANEL
F
IGURE
2-4. NDIR F
RONT
P
ANEL
E
LECTRICAL
C
ONNECTIONS
IN
10 PSI MAX
(69 kPa MAX)
OUT
SAMPLE
10 PSI MAX
(69 kPa MAX)
OUT
REFERENCE
IN
PURGE IN
15 PSI (103 kPa) MAX
Note: Reference and purge gas connections are applicable only to certain applications.
FAN
NETWORK 1
NETWORK 2
POWER
FUSE
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