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ENMET CP-10 User Manual

Page 7

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CP-10

ENMET Corporation

5

3.1.1 Wiring the

CP-10

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

CP-10

should be powered through appropriately sized circuit breakers. See Section 6.0 Technical Data.

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.

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

CP-10

:

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.

Sensor/Transmitter Terminal: J18

Position

Function

1, V+

Power +24

V

DC

2, G

Power Ground

3, Sig

Signal/Return to Ground

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

F

IGURE

4: Power Terminal Connections CP-10

1 2 3

Cover Inside View

Opened Upward

Caution

: 110/220

V

AC

when applied