ENMET CP-10 - Manual (Page 7)

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