CD2DT GREYSTONE | Alldatasheet
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GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM DUCT CARBON DIOXIDE TRANSMITTER CD2DT SERIES PRODUCT DESCRIPTION The duct CO2 transmitter uses a highly accurate and reliable non-dispersive infrared (NDIR) sensor in an attractive enclosure with a gasketed, hinged cover for duct applications to monitor CO2 levels. The sensor uses dual wavelength optics and LTA (long term adjustment) signal processing technology to deliver industry leading long term accuracy and reliability. These features ensure optimum measurement stability for continual monitoring of either supply or return air measuring. Optional features include a resistive temperature sensor output (with LCD display of temperature in either °C or °F), a control relay with programmable setpoint, hysteresis and time delay, and either a conduit or cable gland connection point. 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. GAS TYPE DETECTED Carbon Dioxide (CO2) SENSOR TYPE Dual channel non-dispersive infrared (NDIR) SENSOR ACCURACY ± (30ppm + 3% of measured value) MEASUREMENT RANGE 0-2000ppm, adjustable 1000 - 10000ppm TEMPERATURE DEPENDENCY ±2.5ppm/°C RESPONSE TIME 20 seconds (T63) WARM-UP TIME 1 minute SENSOR LIFE SPAN >15 years TRANSMITTER ACCURACY ±0.25% of span (including linearity, hysteresis and repeatability) POWER SUPPLY 24 Vdc ±20% or 24 Vac ±10% (non-isolated half-wave rectified) PROTECTION CIRCUITRY Reverse voltage protected and transient protected INPUT VOLTAGE EFFECT Negligible over specified operating range OUTPUT SIGNAL TYPE 4-20 mA (3-wire), 0-5 or 0-10 Vdc (field selectable) CURRENT CONSUMPTION Current: 75 mA @ 24 Vdc max, 150 mA @ 24 Vac max Voltage: 50 mA @ 24 Vdc max, 100 mA @ 24 Vac max OUTPUT DRIVE @ 24 VDC Current: 550Ω max Voltage: 10,000Ω min AMBIENT OPERATING RANGE 0 to 50°C (32 to 122°F), 5 to 90 %RH non-condensing STORAGE TEMPERATURE -40 to 70°C (-40 to 158°F) LCD DISPLAY Units: ppm (CO2), °C/°F (optional temperature sensor) Range: 0 to 10000ppm, 0 to 50°C (32 to 122°F) (optional temperature sensor) Size: 35mm W x 15mm H (1.4” x 0.6”), 2 line x 8 character, alpha-numeric Digit Height: 2-line x 8 character TEMPERATURE SENSOR (OPTIONAL) Type: Thermistor and RTD (see ordering chart) Accuracy: See ordering chart Output: 2-wire resistive Range: 0 to 50°C (32 to 122°F) RELAY (OPTIONAL) 2-WIRE OUTPUT Form A (N.O.), 2 Amps @ 140 Vac / 30 Vdc ENCLOSURE Material: Polycarbonate, Grey, UL95-V0, IP65, (NEMA 4X) Dimensions: 116mm W x 100mm H x 54mm D (4.6” x 3.9” x 2.1”) Probe: 22.5mm D x 152mm L (0.88” x 6”) WIRING Screw terminal block (14 to 22 AWG) APPROVALS CE COUNTRY OF ORIGIN Canada SPECIFICATIONS NOTE: This CO2 sensor incorporates a Self Calibration feature to correct CO2 sensor drift. This feature is recommended for applications where the CO2 level will be close to normal (400 ppm) at least one hour per day. If the monitored space is occupied 24 hours or consistently maintains higher or lower levels of CO2, it is recommended that this feature be turned off, but yearly calibration will be required. 112.5 mm 4.43" 53.7 mm 2.11" 152 mm 22.5 mm 0.88" 116.5 mm 4.58" 99.7 mm 3.93" 0.5" NPT
PRINTED IN CANADA Copyright © Greystone Energy Systems Inc. All Rights Reserved www.greystoneenergy.com PS-CD2DTXXX-02 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 WIRING INFORMATION TERMINAL FUNCTION PWR Supply Voltage COM COMMON CO2 Analog Output TEMP Resistance Output RELAY Digital Output PRODUCT CD2DT Duct Carbon Dioxide Transmitter ENCLOSURE B F Polycarbonate with hinged and gasketed cover Same as B, with thread adapter (1/2” NPT to M16) and cable gland fitting OPTIONAL TEMPERATURE SENSOR XX None 100Ω Platinum, IEC 751, 385 Alpha, thin film 1801Ω NTC Thermistor, ±0.2°C 3000Ω NTC Thermistor, ±0.2°C 10,000Ω Type 3, NTC Thermistor, ±0.2°C 2.252KΩ NTC Thermistor, ±0.2°C 1000Ω Platinum, IEC 751, 385 Alpha, thin film 1000Ω Nickel, Class B, DIN 43760 10,000Ω Type 3, NTC Thermistor, ±0.2°C c/w 11,000 shunt resistor 20,000Ω NTC Thermistor, ±0.2°C 10,000Ω Type 2, NTC Thermistor, ±0.2°C OPTIONAL RELAY X R None Adjustable Relay ORDERING CD2DT PART NUMBER NOTE: Greystone Energy Systems, Inc. reserves the right to make design modifications without prior notice. 5-YEAR CALIBRATION GUARANTEE Greystone offers a 5-year calibration guarantee on all its CD series wall and duct mount sensors used for CO2 based ventilation control when operated in an environment that can utilize ASC software. If the sensor is found to be out of calibration more than 150 PPM as compared to a calibration gas or recently calibrated reference, Greystone will provide a free factory calibration of the sensor if returned to Greystone. This guarantee only applies if the sensor is operated in an environment where inside levels periodically drop to outside concentrations (i.e. during evenings or weekends when there is no occupancy) as is required by ASC software. ACCESSORIES CDD1-CALKIT-GS Calibration kit (Gas not included) for calibrating CD & CDD series CO2 Transmitters. PWR COM CO2 TEMP MENU DOWN UP RELAY VOLT mA