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Figure 3-6.
115 / 230 voltage selection switch.
Electrical Connections (Figure 3-6)
This analyzer has an internal AC voltage selector that must be set
!
correctly to prevent damage. Only qualified service personnel may ac-
cess the interior of the analyzer. If qualified service personnel are not
WARNING
available, contact AMETEK service.
Voltage selection
The 3050-AMS analyzer comes from the factory set to operate on 120 VAC.
If you must switch the setting to 240 VAC (or back to the 120 VAC setting),
follow the procedure below.
You must follow this procedure to prevent damage to/malfunction of
!
the analyzer.
CAUTION
1.
Ensure that the area is non-hazardous and the analyzer has been de-
energized and power disconnected
2.
Remove the terminal cover on back panel.
3.
Select 115 or 230 VAC on the voltage selector (10) located on the top
left-hand side of the user interface board.
4.
Replace terminal cover.
5.
Clearly mark the operating voltage on the rear panel analyzer serial
number label in the lower right-hand corner.
LINE VOLTAGE
10
Voltage
Selection
Switch
L
1
FUSE
TB1
TB2
DATA
VALID
N
G
2
3
1
2
RS-485
TERMINATOR
ON
ANALOG
OUTPUT
CONC
SYSTEM
RD
ALARM
ALARM
-
+
+
-
OUT
IN
3
4
5
6
7
8
9
10
11
12
13 14
Installation & Start-Up | 3-11
ON
TB3
TD
+
-
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