AM-5175
ENMET Corporation
5
3.1.1 Wiring the AM-5175
The electrical installation should conform to appropriate electrical codes, such as the National Electrical Code in the United
States.
W
ARNING
:
The compliance of the installation to appropriate codes is not
ENMET
’s responsibility.
The
AM-5175
should be powered through circuit breakers provided for this purpose.
3.1.2 Power Supply
The input power can vary from 100 to 240
V
AC
, 50/60 Hz. Power should be connected to the Power Input Terminal
TB1
and
the Ground screw. See Figure 4 for location. Instrument is supplied with a strain relief and a standard U.S. 3 prong power line
cord.
For DC wiring 24
V
DC
may be wired to J12, (J12-1)position 1 + with ground connected to (J12-2)position 2.
Upon supplying power to the
AM-5175
:
The green power on LED is lit.
The display backlight is lit, and instrument will step through a start-up sequence: unit serial number and software revision
may be shown on the display.
The instrument may go into alarm briefly, but the sensors stabilize quickly. If the instrument persists in alarm, acknowledge the
alarm by pressing the
S
ELECT
button. If alarm persists longer than 30 minutes, call
ENMET
customer service personnel.
W
ARNING
:
Continuous gas detection and alarm systems (110
V
AC
/220
V
AC
/ 24
V
DC
/
12
V
DC
powered) become inoperative upon
loss of primary power. Contact factory for specifications and pricing of backup battery systems.
AC Power Supply Terminal: TB1
Label on PCB
Function
110
V
AC
TB1 ACN
Neutral
TB1 ACL
Line
Ground
Screw
AC GND
220
V
AC
TB1 ACN
Neutral
Optional
TB1 ACL
Line
Ground
Screw
AC GND
C
AUTION
: 110/220
V
AC
when applied
DC Power Supply/4-20mA
Terminal: J12
Position
Function
1 +
24
V
DC
power
2
GND
3
4 - 20 mA out
Sensor Terminal: J8
Position
Function
Color
1 +
Sensor
Red
2
Sensor Signal
White
3
Sensor Ground
Black
Figure 4: Power Terminal Connections AM-5175
Cover Inside View
Opened Upward
Caution
: 110/220
Vac
when applied