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ENMET AM-5175 User Manual

Page 7

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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