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Dwyer Products

In our effort to provide customers with complete solutions, Radix is the channel partner for some leading brands and products that we trust. Supplementing our already-vast product range, we supply Dwyer''s complete range of products for pressure, air velocity, flow, level, temperature, humidity and air-quality control.
Integrating the products from these global instrumentation powerhouses, Radix is sure to meet virtually 
Series CDTR Carbon Dioxide/RH/Temperature Transmitter Series

Series CDTR Carbon Dioxide/RH/Temperature Transmitter Series

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Product Details:
Minimum Order Quantity1 Piece(s)
RangeCO2 0 to 2000 or 0 to 5000 ppm
Relative Humidity 0 to 100%
Temperature32 to 122F (0 to 50C)
Non Linearity16 ppm
Response Time2 minutes for 99% step change
Power Requirements16 to 35 VDC / 19 to 28 VAC
Series CDTR Carbon Dioxide, Relative Humidity and Temperature Transmitters reduce the number of sensors mounted on a wall or in a duct. By combining RH, CO2 and temperature in one device, system integrators are able to lower installation time of mounting multiple housings, while lowering material cost at the same time.

  • Range:CO2: 0 to 2000 or 0 to 5000 ppm (depending on model); Relative Humidity: 0 to 100% ; Temperature: 32 to 122°F (0 to 50°C).
  • Accuracy:±40 ppm 3% of reading (CO2); ±2% (RH).
  • Temperature Dependence:±8 ppm/ °C at 1100 ppm.
  • Non-Linearity:16 ppm.
  • Pressure Dependence:0.13% of reading per mm of Hg.
  • Response Time:2 minutes for 99% step change.
  • Temperature Limits:32 to 122°F (0 to 50°C).
  • Humidity Limits:10 to 95% RH (non-condensing).
  • Power Requirements:16 to 35 VDC / 19 to 28 VAC.
  • Power Consumption:Average: 2 watts; Peak: 3.75 watts.
  • Sensor:Single-beam, dual-wavelength NDIR.
  • Output:Current: 4 to 20 mA (max 500 O); Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 ?); Relay: SPST NO 2A @ 30 VDC; RTD or thermistor per r-t curves (depending on model).
  • Weight:5.6 oz (158.8 g).
  • Agency Approvals:CE.

Additional Information:

  • Item Code: SeriesCDTR
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Magnehelic Differential Pressure Gauges

Magnehelic Differential Pressure Gauges

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Product Details:
Minimum Order Quantity1 Piece(s)
Dial Size4 inch / 100 mm
Pressure Range-0.677 to 1.034 bar
UseHVAC Systems
Display TypeAnalog
Pressure TypeDifferential Pressure
Connection TypeNPT
Connection Size1/8 inch
Pressure Limits35 psig (2.41 bar), HP option 80 psig (5.52 bar)
Weight1 lb 2 oz (510 g), MP & HP 2 lb 2 oz (963 g)
Temperature Limits20 to 140F. (-6.67 to 60C)
Exterior finishExterior finish is coated gray to withstand 168 hour salt spray corrosion test
OverpressureRelief plug opens at approximately 25 psig (1.72 bar), standard gages only
HousingDie cast aluminum case and bezel
Bright red LED on right of scale shows when setpoint is reached. Field adjustable from gage face, unit operates on 12-24 VDC.Requires HP or MP style cover and bezel.
  • Standard Accessories: Two 1/8" NPT plugs for duplicate pressure taps, two 1/8" pipe thread to rubber tubing adapter and three flush mounting adapters with screws. (Mounting and snap ring retainer substituted for 3 adapters in MP & HP gage accessories.)
  • Accuracy: ±2% of full scale (±3% on - 0, -100 Pa, -125 Pa, 10MM and ±4% on - 00,-60 Pa, -6MM ranges), throughout range at 70°F (21.1°C)

Additional Information:

  • Item Code: Series2000SP
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