Series CDWP Carbon Dioxide TransmitterSpecifications - Installation and Operating InstructionsBulletin AQ-CDWPThe Series CDWP Carbon Dioxide Transmitter accurately monitors the CO2 concentration in industrial and indoor environments to help achieve energy savings. For increased sensor life and accuracy, a single-beam dual-wavelength non-dispersive infrared (NDIR) sensor is used to eliminate light source aging effects. The single-beam dual-wavelength sensor technology provides the highest level of accuracy compared to Automatic Baseline Correction methods, which can unintentionally shift the calibration based on CO2 levels and barometric pressure conditions. Universal outputs allow users to select the transmitter output to be 4 to 20 mA, 0 to 5 VDC, or 0 to 10 VDC to work with virtually any building management controller or programmable logic controller. The CDWP utilizes a rugged IP54 aluminum housing with an exterior gray finish coat that was tested to withstand a 168 hour salt spray corrosion test. This ruggedized housing helps to protect the sensor from splashing liquid and airborne dust or debris making the Series CDWP a great fit for animal husbandry applications and confined feeding operations.Single-beam dual-wavelength sensor advantages:• Automatically corrects for aging effects in occupied and unoccupied spaces• Measures actual unfiltered light intensity directly • Eliminates error from incorrect assumptions of gas concentration in theoretical logic assumption methodsSPECIFICATIONSSensor: Single beam, dual-wavelength NDIR.Range: CO2: 0 to 2000, 0 to 5000, or 0 to 10000 ppm (depending on model).Accuracy: CO2: ±40 ppm ±3% of reading.Temperature Dependence: ±8 ppm/°C at 1100 ppm.Non-Linearity: 16 ppm.Pressure Dependence: 0.13% of reading per mm of Hg.Response Time: 300 s (t63).Temperature Limits: 32 to 122°F (0 to 50°C).Humidity Limits: 10 to 95% RH (non-condensing).Power Requirements: 16 to 35 VDC or 19 to 28 VAC.Power Consumption: Average: 2 W; Peak: 3.75 W.Output: Current: 4 to 20 mA (max. 500 Ω); Voltage: 0 to 5 VDC or 0 to 10 VDC (min. 500 Ω).Enclosure Rating: IP54.Mounting Orientation: Vertically, with electrical connection pointing downwards.Weight: 26.24 oz (744 g).Agency Approvals: CE.(OPTIONALSUSPENSION BRACKET)4-11/32[110.32]Ø1/4 [6.35]2-1/32[51.59]4-13/16[122.23]6 [152.40]5-5/32[130.96]1-27/32[46.82]1-6 MM OR 5-10 MMCABLE GLAND(OPTIONAL 4-6 MM OR 6-8MMM12 CONNECTION)4 X 3/4[19.05]8 X Ø3/16[4.76]11/16 [17.46]2-5/16[58.73]MODEL CHARTExampleCDWP-02W-M4-FCCDWP-02W-M4SeriesCDWPCarbon dioxide transmitterRange0205102000 PPM5000 PPM10000 PPMMountingWHWall mountSuspended mountElectrical ConnectionC1C5M4M6Cable gland 1 to 6 mm cableCable gland 5 to 10 mm cableM12 connection 4 to 6 mm cableM12 connection 6 to 8 mm cableOptionFCFactory calibration certificate®DWYER INSTRUMENTS, INC.P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.Phone: 219/879-8000Fax: 219/872-9057www.dwyer-inst.come-mail: info@dwyermail.comPrinted in U.S.A. 1/19FR# 444411-00 Rev. 1©Copyright 2019 Dwyer Instruments, Inc.DWYER INSTRUMENTS, INC.P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.Phone: 219/879-8000Fax: 219/872-9057www.dwyer-inst.come-mail: info@dwyermail.comINSTALLATIONMake sure all connections are in accordance with the job wiring diagram and in accordance with national and local electrical codes. Use copper conductors only.SUSPENSION MOUNTINGTo suspend the CDWP from the ceiling, loop the end of the power cord and feed it through the hole at the base of the bracket and hook the loop on the prong. M12 Connector OptionThe M12 Connection option allows for easy removal of the CDWP before site cleaning operations.Power SupplyChoose a power supply with a voltage and current rating sufficient to meet the power specifications under all operating conditions. If the power supply is unregulated, make sure the output voltage remains within the required voltage range under all power line conditions. CURRENT / VOLTAGE OUTPUTSThe transmitter may be wired for current or voltage output for CO2. WIRINGUse a minimum of 22 AWG to maximum 18 AWG wire for wiring to terminal blocks. Refer to Figure 3 for wiring Information.DIP SWITCH SETTINGSTo access the DIP SWITCH, remove the cover of the unit as shown in Figure 4. The DIP SWITCH is located on the circuit board.DIP Switch Position 1: CO2 Output SelectionON: Output set to voltage outputOFF: Output set to current outputDIP SWITCH POSITION 2: Not Used in this productDIP SWITCH POSITION 3 & 4: Current or Voltage Output Range SelectionDIP SWITCH POSITIONS 5 & 6: Not used in this productMAINTENANCE/REPAIRUpon final installation of the Series CDWP, no routine maintenance is required. The Series CDWP is not field serviceable and it is not possible to repair the unit. Field repair should not be attempted and may void warranty.WARRANTY/RETURNRefer to “Terms and Conditions of Sale” in our catalog and on our website. Contact customer service to receive a Return Goods Authorization number before shipping the product back for repair. Be sure to include a brief description of the problem plus any additional application notes. Disconnect power supply before installation to prevent electrical shock and equipment damageWARNINGUse electrostatic discharge precautions (e.g., use of wrist straps) during installation and wiring to prevent equipment damage.Do not exceed ratings of this device, permanent damage not covered by warranty may result.Upon powering the transmitter, a warm up period of 30 minutes is required for the transmitter to adjust to the current CO2 concentration.NOTICESelf calibration feature of the transmitter requires exposure to normal outdoor equivalent CO2 level once every 30 days.NOTICEFigure 1: CDWP Suspension BracketFigure 5: Diagram of DIP SWITCHFigure 3: Active Output Wiring DiagramFigure 4: Diagram of Circuit BoardFigure 2: Diagram of M12 ConnectorOutput RangeDIP Switch 3 PositionDIP Switch 4 Position2 to 10 V4 to 20 mAONOFF0 to 10 V0 to 20 mAOFFOFF0 to 5 V0 to 10 mAOFFON1 to 5 V2 to 10 mAONONM12 CONNECTORFITS 4-6MM OR6-8MM CABLECAUTIONCAUTIONThis symbol indicates waste electrical products should not be disposed of with household waste. Please recycle where facilities exist. Check with your Local Authority or retailer for recycling advice.Next >