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INTRODUCTION
The Particulate Matter Transmitter uses an optical sensor based on
laser scattering principles and features innovative contamination-
resistance technology to perform highly accurate and reliable PM
measurements. With a continuous-operation lifetime of more than 8
years, the sensor will provide long-term reliability and high resolution
particle size binning for the detection of environmental dust and
other particles.
The sensor is housed within an attractive, low-profile enclosure to
monitor ambient PM levels for room applications. The sensor achieves
excellent performance characteristics, including high accuracy and
low power consumption to ensure stable long term operation. The
PMRMC features both 4-20 mA and voltage outputs (0-5 / 0-10 Vdc) for simple integration into any building
automation system to assure good indoor air quality. The device is also available with an RS-485 MS/TP
network connection including either Modbus or BACnet® protocol.
BEFORE INSTALLATION
Read these installation instructions carefully before commissioning the PM Sensor. Failure to follow these
instructions may result in product damage. Do not use in an explosive or hazardous environment, with
combustible or flammable gases, as safety or emergency stop devices or in any other application where
failure of the product could result in personal injury.
Use electrostatic discharge precautions during
installation and do not exceed the device ratings.
MOUNTING
The particulate matter transmitter mounts directly on a wall or onto an electrical wall box and should be
mounted to a wall box five feet from the floor. Do not mount the sensor near doors, opening windows,
supply air diffusers, or other known air disturbances. Avoid areas where the sensor is exposed to vibrations
or rapid temperature changes.
The cover is hooked to the base at the top edge and must be removed from the bottom edge first. Use
a small Phillips screwdriver to loosen the security screw as shown in Figure 1. (Complete removal of the
screw is not required). Use a screw driver to carefully pry each bottom corner if necessary tip the cover
away from the base as shown in Figure 2 and sit it aside.
The PCB must be removed from the base to access the mounting
holes. Follow usual anti-static procedures when handling the
PCB. The PCB is removed by pressing the enclosure base to
unsnap the latch near the bottom edge, then the PCB can be
lifted out of the base as shown in Figure 3.
Set the PCB aside until the base is mounted on the wall. For
added protection, place the PCB in the supplied anti-static bag.
Mount the base by screwing to an electrical box or directly to
the wall as shown in Figure 4. The mounting hole locations are
shown in the Dimension drawings. After the base is mounted
Figure 1
Figure 2
Figure 3
IN-GE-PMRMCXXX-05
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Room Particulate Matter
Transmitter
PMRMC Series - Installation Instructions
