PureAire Air Check Lite, Instruction Manual

Page: 5 / 34

PureAire Monitoring Systems, Inc.
5/25/07
2
1.2 Component Identification
1.2.1 Front View Exterior
1.
4-20 mA Signal Output Terminal — This connection serves as both
the
4-20 mA output connection and 24 VDC power input connection. See
section 3: Installation for more information.
2.
Sensor Cable and Connector
— Allows remote mounting of sensor.
Sensor plugs into receptacle on end of sensor cable.
3.
Sensor Cover — This cover protects the gas sensor. It threads onto
the upper portion of the sensor.
4.
Gas Sensor — An amperometric, electrochemical sensor which
detects and measures the target gas. Different gas sensors are required
to detect different gases. When exposed to the target gas, the sensor
outputs an electrical signal proportional to the gas concentration.
5.
Cable Port — This is the opening in the transmitter housing for
connecting the 4-20 mA output and 24 VDC power cable.
6.
Transmitter Cover — A removable cover that protects the interior of
the transmitter.
7.
Transmitter Cover Fasteners — These captive screws secure the
transmitter cover in place.
1.
2.
6.
3. & 4.
5.
7.