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Figure 3-8.
Attach ground wire
to threaded chassis
stud.
Line Voltage Selector
Figure 3-9.
Communication
connections on the
3050-AMS analyzer
interface board.
GROUND STUDS
7.
Reconnect 1 (L) and 2 (N) wires (Figure 3-7) by screwing in the two
plug screws. Make the ground connection to the threaded chassis stud
(Figure 3-8). Do not use the ground position on the power connector.
Plug in the power connector.
8.
Connect a proper, locally recognized plug or terminator to the end of
your cord.
9.
Replace rear cover.
10. Reconnect power.
LINE VOLTAGE
10
FUSE
9
Fuse Receptacle
L
N
G
8
Power Connector
1
2
3
Communication Connections (Figure 3-9)
1.
Disconnect the power from the analyzer and remove the rear panel
terminal cover.
2.
Connect the 4 to 20 mA analog output (13) (see Figures 3-10a and
3-10b) and alarm and data valid terminals (14) on the interface board
to the analyzer through the metallic signal conduit (2) (Figure 3-2).
RS-232
Exhaust
Sample In
Out
20-50 PSIG
Atmospheric
Pressure
Instrument Air
80 - 100 PSIG
TB1
TB2
DATA
CONC
SYSTEM
VALID
ALARM
ALARM
1
2
3
4
5
6
14
Alarm & Alert Contacts
DRYER COMPARTMENT
COVER
RS-485
TERMINATOR
ON
ON
TB3
ANALOG
OUTPUT
RD
TD
-
+
OUT
IN
+
-
+
-
7
8
9
10
11
12
13 14
13
Analog Output
Installation & Start-Up | 3-13
11
RS-485
Terminator
12
RS-485
Serial Port
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