Humidity

DP4A, EN4A, WB4A



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DP4A, EN4A, WB4A

Amphenol Dew Point, Enthalpy & Wet Bulb Transmitters DP4A, EN4A, WB4A

Amphenol Dew Point, Enthalpy & Wet Bulb Transmitters

 

The Amphenol Advanced Sensors Model DP4 Dew Point, WB4 Wet Bulb, and EN4 Enthalpy Transmitters are rugged and compact. Each transmitter uses a capacitive RH sensor and an RTD temperature sensor to compute the dew point, wet bulb, or enthalpy for building automation and process applications. Two linear outputs provide a 4-20mA signal for dew point, wet bulb, or enthalpy, and a 4-20 mA signal for dry bulb. These transmitters are proven performers in Building Automation Systems, BAS, and HVAC applications.


Products
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QtyModelDescriptionIn StockList PriceInternet Price
DP4A-D DUCT DEW POINT AND DRY BULB XMTR In Stock868.83695.06
DP4A-O OSA DEW POINT AND DRY BULB XMTR In Stock902.66722.13
DP4A-S ROOM DEW POINT AND DRY BULB XMTR In Stock677.06541.65
EN4A-D DUCT ENTHALPY AND DRY BULB XMTR In Stock868.65694.92
EN4A-O OSA ENTHALPY AND DRY BULB XMTR In Stock902.29721.83
EN4A-S ROOM ENTHALPY AND DRY BULB XMTR INFO677.63542.10
WB4A-D DUCT WET BULB AND DRY BULB XMTR INFO868.65694.92
WB4A-O OSA WET BULB AND DRY BULB XMTR In Stock902.29721.83
WB4A-S ROOM WET BULB AND DRY BULB XMTR In Stock677.63542.10

Accessories

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Features
  • Dew point accuracy of ±1.8℉ (±1℃) over the specified range
  • Enthalpy accuracy of ±2 BTU/lb over specified range
  • Wet bulb accuracy of ±3℉ over the specified range
  • Dry bulb accuracy of ±.05℉ (±0.9℃)over the specified range
  • Two 4-20 mA output signals
  • Microprocessor-based signal processing
  • Weather resistant duct/OSA mounting
  • Temperature compensated
Specifications

Accuracy:

Enthalpy:±2 BTU/lb

Dew Point:±1.8°F (±1°C)

Wet Bulb:±3.24°F (±1.8°C)

Dry Bulb:±0.5°F (±0.9°C)

Supply Voltage:12-30 VDC, 100 mA

Signal Output:Field selectable: 4-20 mA (700Ω max load), 0-5 V, or 0-10 V Humidity and dry bulb temperature

Measurement Range:

Dew Point:

Duct/OSA:-20° to 120°F (-28.8° to 49°C)

Space:40° to 90°F (4.4° to 32.2°C)

Enthalpy:

Space/Duct/OSA:0-50 BTU/lb

Wet Bulb:

Duct/OSA:0° to 100°F (-17.8° to 37.8°C)

Space:40° to 90°F (4.4° to 32.2°C)

Dry Bulb:

Duct/OSA:-20° to 120°F (-28.8° to 49°C)

Space :40° to 90°F (4.4° to 32.2°C)

Sensing Technology:Capacitive and replaceable

Operating Temperature:-40° to 140°F (-40° to 60°C)

Operating Humidity:0 to 99% RH, non-condensing

Aprrovals:CE, RoHs

Weight:

Room: 0.34 lb (0.15 Kg)

Duct: 0.96 lb (0.44 Kg)

OSA: 1.22 lb (0.55 Kg)

Warranty: 1 year

Certifications