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5. INSTALLATION
5.0. General
The MC-4231-CO Modbus Addressable Sensor may be installed in a variety of
configurations to solve almost any gas sensor requirements. The audible/visual
alarm feature of the monitor is typically used as a working face section alarm to alert
personnel of high carbon monoxide levels. When used in the voltage output mode,
the monitor may also be connected to PLC Monitoring System Master Station via 2
wire or 4 wire RS-485 hardware interface.
The monitor uses City Technology sensor cells and will accept both 2 wire and 3
wire type cells.
The monitor may also be used as a monitor system small remote. In addition to the
100 milliampere current sink type Warn and Alarm outputs, the monitor has two
more 100 millampere current sink type outputs triggered by the two digital status
inputs. The two digital status inputs accept 0 to 5 VDC and trigger the control
outputs at 2.5 VDC. The digital status information is sent to the PLC System
Master Station. The monitor will also accept two analog voltage inputs and send this
information to the Monitor System Master Station. The analog voltage range is 0 to
3
VDC.
