AQDT GREYSTONE | Alldatasheet
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GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM DUCT AIR QUALITY TRANSMITTER AQDT SERIES PRODUCT DESCRIPTION The duct indoor air quality sensor uses an advanced MEMS metal oxide semiconductor sensor to detect poor air quality. The sensor reacts quickly to detect a broad range of VOCs such as smoke, cooking odors, bio-effluence, outdoor pollutants and from human activities. The sensor captures all VOC emissions that are completely invisible to CO2 sensors. A weatherproof polycarbonate enclosure is provided for ease of installation. TYPICAL INSTALLATION For complete installation and wiring details, please refer to the product installation instructions. The duct type sensor installs on the outside of a return air duct with the sampling tube inserted into the duct. Mount the sensor in an easily accessible location in a straight section of duct at least five feet from corners and other items that may cause disturbances in the air flow. Avoid areas with vibrations or rapid temperature changes. The enclosure provides mounting tabs for ease of installation. SENSOR TECHNOLOGY MEMS metal oxide semiconductor VOC sensor MEASUREMENT RANGE 450-2000 ppm CO2 equivalent or 0-100% (menu selectable) DRIFT COMPENSATION Automatic baseline correction POWER SUPPLY 20-28 Vac/dc (non-isolated half-wave rectified) CONSUMPTION 35 mA max @ 24 Vdc INPUT VOLTAGE EFFECT Negligible over specified operating range PROTECTION CIRCUITRY Reverse voltage protected, over voltage protected OPERATING CONDITIONS 0 to 50°C (32 to 122°F), 5-95 %RH non-condensing LINEAR OUTPUT SIGNAL 0-5 / 0-10 Vdc (menu selectable) = 0-2000 ppm CO2 equivalent ANALOG STEPPED OUTPUT SIGNAL Three steps representing Good, Fair, and Poor air quality (each step is independently adjustable from 0-10 Vdc) OUTPUT DRIVE CAPABILITY 10,000 Ω minimum PROGRAMMING AND SELECTION Via internal push-buttons and LCD menu WARM-UP TIME 5 minutes LCD RESOLUTION 1 ppm / 1% LCD SIZE 35mm W x 15mm H x (1.4” x 0.6”) alpha-numeric 2 line x 8 characters LCD BACKLIGHT Enable or disable via menu WIRING CONNECTIONS Screw terminal blocks, 14 to 22 AWG DUCT PROBE 152mm L x 22.5mm D (6” x 0.88”) RELAY OUTPUT Form A contact (N.O.) 5 Amps @ 250 Vac,
5 Amps @ 30 Vdc for resistive load
2 Amps @ 250 Vac, 2 Amps @ 30 Vdc for inductive load
OPTIONAL TEMPERATURE SENSOR Various thermistors and RTDs, 2 wire resistive output ENCLOSURE B: Grey polycarbonate, UL94-V0, IP65 (NEMA 4X) F: Same as B, with thread adapter (1/2” NPT to M16) and cable gland fitting COUNTRY OF ORIGIN Canada SPECIFICATIONS CABLE GLAND FITTING THREAD ADAPTER 1/2” NPT TO M16 ACCESSORIES - INCLUDED WITH F STYLE ENCLOSURE 116.5 mm 4.585" 99.7 mm 3.93" 0.5" NPT 112.5 mm 4.43" 53.7 mm 2.11" 152 mm 22.5 mm 0.88"
PRINTED IN CANADA Copyright © Greystone Energy Systems Inc. All Rights Reserved www.greystoneenergy.com PS-AQDTXXX-02 04/20 Greystone Energy Systems, Inc.
150 English Drive, Moncton,
New Brunswick, Canada E1E 4G7 Ph: +1 (506) 853-3057 Fax: +1 (506) 853-6014 North America: 1-800-561-5611 E-mail: mail@greystoneenergy.com NOTE: Greystone Energy Systems, Inc. reserves the right to make design modifications without prior notice. PRODUCT AQDT Duct Air Quality Transmitter ENCLOSURE B F Polycarbonate with hinged and gasketed cover Same as B, with thread adapter & cable gland fitting OPTIONAL TEMPERATURE SENSOR 00 None 100 Ω Platinum RTD, IEC 751, 385 Alpha, thin film 1801 Ω NTC Thermistor, ±0.2°C 3000 Ω NTC Thermistor, ±0.2°C 10,000 Ω Type 3, NTC Thermistor, ±0.2°C 2.252K Ω NTC Thermistor, ±0.2°C 1000 Ω Platinum RTD, IEC 751, 385 Alpha, thin film 1000 Ω Nickel RTD, Class B, DIN 43760 10,000 Ω Type 3, NTC Thermistor, ±0.2°C c/w 11,000 shunt resistor 20,000 Ω NTC Thermistor, ±0.2°C 10,000 Ω Type 2, NTC Thermistor, ±0.2°C ORDERING AQDT PART NUMBER WIRING INFORMATION TERMINAL FUNCTION PWR Power input COM Common ASO Analog Stepped Output 0-10 Vdc LINEAR Analog Output 0-5 or 0-10 Vdc TEMP Resistance Output TEMP Resistance Output RELAY Digital Output Terminals only present if option is ordered. COM PWR ASO LINEAR TEMP N.O. RELAY UP DOWN MENU