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    1. HHT系列本安型溫濕度變送器

      瀏覽:     發表時間:2015-09-25 09:10:02

      HHT系列本安型溫濕度變送器

      產品介紹

      The Series HHT Hazardous Area Humidity/Temperature Transmitter takes accurate measurements in the harshest of environments. The transmitter is offered in explosion-proof and intrinsically-safe versions depending on the application's requirements. The explosion-proof model is offered with 4 to 20 mA output for humidity only. The intrinsically-safe version is offered with 4 to 20 mA output for humidity and temperature. Both versions have an optional two line alphanumeric display to show the current humidity and temperature.

      The Series HHT humidity/temperature transmitter is excellent for offshore HVAC applications, dust and grain applications. Intrinsically safe models require an intrinsically safe barrier.

      技術參數

      相對濕度范圍: 0 to 100% RH.

      溫度范圍-40 to 140°F (-40 to 60°C).

      精度: ±2% 10-90% RH, ±0.9°F at 72°F (±0.3°C at 25°C).

      滯后: ±1%.

      重復性: ±0.1% typical.

      溫度范圍: -40 to 140°F (-40 to 60°C).

      儲存溫度: -40 to 176°F (-40 to 80°C).

      補償溫度: -40 to 140°F (-40 to 60°C).

      電源: For instrinsically safe models HHT-IX, 9.5 to 28 VDC. For explosion-proof models HHT-EX, 16.5 to 28 VDC.

      信號輸出: 4-20 mA, 2 channels for humidity/temperature models (loop power on RH).

      響應時間: 15 seconds.

      電氣連接: Screw terminal block.

      管路連接1/2" female NPT.

      漂移<1% RH/year.

      RH 傳感器: Capacitance polymer.

      溫度傳感器: Solid state band gap.

      外殼材質Aluminum.

      顯示: Optional 2 line alpha numeric, 8 characters/line. Temperature display is °F/°C selectable.

      顯示分辨率: RH: 0.1%: Temperature 0.1°F (0.1°C).

      重量2 lb 8 oz (1134 g).

      封裝: NEMA 4X (IP66). Models HHT-EX: FM Explosion-proof, Class I Div. 1 Group B, C, D, Class II Div. 1 Group E, F, G, Class III Div. 1; Models HHT-IX: FM Instrinsically Safe, Class I Div. 1 Group A, B, C, D, Class II Div. 1 Group E, F, G, Class III Div. 1 T4.

      認證FM, CE. 

      選型表


        

          

      HHT-EU

      Explosion-proof humidity transmitter.

      HHT-EU-LCD

      Explosion-proof humidity transmitter with LCD display.

      HHT-IU

      Intrinsically safe humidity transmitter.

      HHT-IT

      Intrinsically safe humidity/temperature transmitter.

      HHT-IT-LCD

      Intrinsically safe humidity/temperature transmitter with LCD display.



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