AMC 1ACO, Инструкция по эксплуатации, Страница: 11 / 22

Gas Monitor 1ACO One-Channel Monitor
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4.2 WIRING
4.2.1 MONITOR WIRING
POWER SUPPLY: The monitor operates on 120 VAC, 60 Hz. A Class II step down
transformer runs the internal circuitry at low voltages. The power
supply connections are made at the power terminal block located
inside the monitor, see Figure 4.
RELAYS: Relays are included with the monitor, DPDT relays are used. The two
relays are set for different alarm conditions. The contacts are rated for
10Amps@250VAC resistive. For relay contact arrangement, see
Figure 5.
The Gas Monitor 1ACO is shipped factory configured to be de-energized in the non-alarm state.
If the user prefers to have relays in a normally energized (failsafe) state see section 4.4 for
jumper configuration.
AC PRIMARY
120 VAC, 60 Hz
NEUT.
HOT
GND
FIGURE 4: Location of Power Supply Connections.