Dwyer Temperature humidity probe WHT-31A

146_Layout 2 7/2/12 3:39 PM Page 146 Series WHT Weather-Resistant Humidity/ Temperature Transmitter Compact Housing, Sintered Filter 2X 5/16 [7.94] 3-31/64 [88.5] 4-9/16 1-27/64 1-31/64 [115.89] 3 [36.12] [37.70] AIR QUALITY [76.2] 4 [101.6] 2-3/4 [69.85] The Compact Series WHT Humidity/Temperature Transmitter is designed to SPECIFICATIONS 0 to 10 V Output Models: withstand the elements. A removable sintered filter protects the polymer capacitance Relative Humidity Range: 0 to 100% Power requirements: 15 to 35 VDC sensor from solid objects that may come in contact with the transmitter. The transmitter RH. or 15 to 29 VAC; is available with 4 to 20 mA or 0 to 10 VDC output signals for both temperature and Temperature Range: -40 to 140°F Output signal: 0 to 10 V @ 5 mA humidity. This transmitter is ideal for measuring outside air temperature and humidity (-40 to 60°C). max. levels for air handling economizer applications. Accuracy, RH: ±3% 20 to 80% RH, 0 to 5 V Output Models: ±4% @ 10-20%, 80 to 90%. Power requirements: 10 to 35 VDC Accuracy, Temp Models with 4 to 20 or 10 to 29 VAC; Model Accuracy RH Output Temperature Humidity/Temperature mA Temp. Output: ±0.9°F @ 72°F Output signal: 0 to 5 V @ 5 mA max. WHT-310 3% 4 to 20 mA None (±0.3°C @ 25°C). Response Time: 15 seconds. WHT-311 3% 4 to 20 mA 4 to 20 mA Accuracy, Temp Models with Passive Electrical Connections: Removable WHT-320 3% 0 to 10 V None Thermistor Temp Sensor: ±0.36°F @ screw terminal block. WHT-322 3% 0 to 10 V 0 to 10 V 77°F (±0.2°C @ 25°C). Drift: <1% RH/year. Transmitters WHT-330 3% 0 to 5 V None Hysteresis, RH: ±1%. RH Sensor: Capacitance polymer. WHT-333 3% 0 to 5 V 0 to 5 V Repeatability, RH: ±0.1% typical. Temperature Sensor: 4 to 20 mA WHT-31A 3% 4 to 20 mA 10 K Ohm Temperature Limits: -40 to 140°F output, solid state band gap. Passive WHT-32A 3% 0 to 10 V 10 K Ohm (-40 to 60°C). output: 10K @ 25°C thermistor (Dwyer Note: For 2% accuracy, change the leading 3 to a 2. Storage Temperature: -40 to 176°F curve A). (For example, WHT-210) (-40 to 80°C). Enclosure: ABS. Compensated Temperature Range, Enclosure Rating: Designed to meet RH: -4 to 140°F (-20 to 60°C). NEMA 3S (IP54). 4 to 20 mA Loop Powered Models: Weight: 0.3 oz (8.5 g). Power requirements: 10 to 35 VDC; Agency Approvals: CE. Output signal: 4 to 20 mA. Model ™ AQS-1 AQStick Ambient Volatile Organic Compound Monitor Powered by USB Port, Local Indication 2-1/64 [51.31] 49/64 3/8 [19.64] [9.59] 2-15/64 [56.81] The AQStick™ Ambient Volatile Organic Compound (VOC) Monitor monitors SPECIFICATIONS ambient air quality by detecting the VOC content in the air. Some common sources of VOC VOC’s Detected: Alcohols, aldehydes, ketones, organic acids, aliphatic and aromatic contamination are carpets, building materials, paints, cleaners, and tobacco smoke. Even hydrocarbons. low concentrations of these compounds can affect building occupants’ comfort. A computer’s Sensor: MEMS metal oxide semiconductor. USB port provides power for the sensor and the LED lights which change color in Power: Powered from PC USB port. accordance with the ambient air quality. In order to correspond with ASHRAE’s standards Temperature Limits: 32 to 122°F (0 to 50°C). for air quality, the VOC reading from the monitor is converted from a percentage Humidity Limits: 5 to 95% RH (non-condensing). contaminated to an equivalent PPM reading of CO2. The percentage contaminated Agency Approval: CE. multiplied by 2000 PPM of CO2 gives the equivalent concentration of CO2. From the factory, the LED is green under 1000 PPM CO2, yellow for 1000 to 1500 PPM CO2 and red above 1500 PPM CO2. These factory values can be changed using the free online software. When using the free online software, the AQStick™ ambient VOC monitor can log and graph how Model AQS-1, Ambient Volatile Organic Compound Monitor building conditions change over time. AQStickTM is a trademark of Dwyer Instruments, Inc. 146 DWYER INSTRUMENTS, INC. | www.dwyer-inst.com Série WHT Transmetteur d’humidité et de température étanche Boîtier Compact, Filtre Fritté 2X 5/16 [7.94] 3-31/64 4-9/16 [88.5] 1-27/64 1-31/64…