GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM

OUTSIDE PARTICULATE MATTER SENSOR

PMOS SERIES

PRODUCT DESCRIPTION

The PMOS Outside Particulate Matter Sensor

uses an optical sensor based on laser scattering

principles and features innovative contamination

resistance technology to perform highly accurate

and reliable PM measurements. The replaceable

sensor measures particles of PM1.0, PM2.5, PM4.0,

or PM10, 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.

TYPICAL INSTALLATION

For complete installation and wiring details,

please refer to the product installation

instructions.

The PMOS series should be mounted on an outside

North facing wall, under the eaves which will

provide protection from direct sunlight and wind.

The PMOS can be mounted directly to buildings

wall face using the provided mounting holes. There

are 0.85” knockouts for conduit connection.

The basic PMOS has a screw block terminal

provided for connection to the Building

Automation System.

SENSOR

Laser scatter method (field replaceable)

PARTICULATE SIZE

PM1.0, PM2.5, PM4.0, or PM10 (selectable)

MASS CONCENTRATION RANGE

0 - 1000 ug/m3

RESOLUTION

1 ug/m3

ACCURACY

±10 ug/m3 (0 - 100 ug/m3), ±10% (100 - 1000 ug/m3)

RESPONSE TIME

1 second

SENSOR LIFETIME

>8 years

ANALOG MODEL

Consumption: 75 mA max @ 24 Vdc, 100 mA max @ 24 Vac

Output Signals: 4-20 mA (sourcing) or 0-5 Vdc / 0-10 Vdc (selectable)

Output Drive Capability: Current - 550Ω max

Voltage - 5,000Ω min

Output Scale: 0 to 1000 ug/m3 (menu selectable)

BACnet® MODEL

Consumption: 50 mA max @ 24 Vdc, 80 mA max @ 24 Vac

Interface: MS/TP, 2 wire RS-485

Baud Rate: 9600, 19200, 38400, 57600, 76800 or 115200 (menu selectable)

Address Range: 0 - 127 (menu selectable)

MODBUS MODEL

Consumption: 50 mA max @ 24 Vdc, 80 mA max @ 24 Vac

Interface: MS/TP, 2 wire RS-485, RTU

Baud Rate: 9600, 19200, 38400, 57600, 76800 or 115200 (menu selectable)

Address Range: 1-255 (menu selectable)

PM ALARM RELAY (OPTIONAL)

Contact Ratings: Form C (NO + NC), 2A @ 140 Vac, 2A @ 30 Vac

Setpoint + Hysteresis: Programmable via menu

DISPLAY

Internal LCD for setup

Display values

Mass Concentration: 0 - 1000 ug/m3

Air Quality Index: 0 - 500 AQI Good/Moderate/Poor (menu selectable)

POWER SUPPLY

24 Vac/dc ±20% (non-isolated half-wave rectified)

PROTECTION CIRCUITRY

Reverse voltage protected, over-voltage protected

OPERATING CONDITIONS

-10 to 60°C (14 to 140°F), 20 to 80 %RH non-condensing

STORAGE CONDITIONS

-30 to 60°C (-22 to 140°F)

ENCLOSURE

Polycarbonate, IP65 (NEMA 4X)

ENCLOSURE DIMENSIONS

130mm W x 130mm H x 75mm D (5.12” x 5.12” x 2.95”)

WIRING

Screw terminal block (14 to 22 AWG)

COUNTRY OF ORIGIN

Canada

SPECIFICATIONS

130 mm

5.11”

130 mm

5.11”

74.7 mm

2.94”