特 點:
‧鏡面冷凝光學式露點感應器, 測試準確性±0.5ºC.
‧具有鏡面檢查功能可免除經常性的校正手續
‧最基本且實用的露點偵測儀器, 可同時量測溫度
‧感應器使用壽命可達 5~10 年, 經濟性優於各種濕度感應器
‧採用 RTD-100W 環境溫度感應元件

儀器規格: 
測試範圍: -40ºC~ +70ºC 露點 (10~90% RH) 
                0 ~ +60ºC 環境溫度
準 確 性: ±0.2ºC 露點溫度, ±0.2ºC 環境溫度
再 顯 性: ±0.05ºC 以內
承受壓力: 10呎水柱壓力 (Pipe & Duct type)
試樣流速: 500 ~ 3,000呎分鐘(Pipe & Duct type)
使用電壓: 24VDC or 115/220VAC
輸出訊號: 4~20mADC or 1~5VDC. 100Ohm PRT
螺牙型式: 1" NPT (pipe mount type)

Model Dew-10
The Dew-10 Series is a family of low cost, high performance chilled mirror dew point transmitters comprising pipe, duct, and wall mount models. All models provide accurate and reliable dew point measurements over a wide range for energy management and process applications.

Accuracy for the series is ±0.5ºC (±1ºF). Dew point may be measured over a range of -40º to +58ºC (-40º to +136ºF). The  wall mount version is also available with an optional air temperature measurement capability over the same range.

In the Dew-10 sensor, a miniature heat pump cools a metallic mirror. When the mirror temperature reaches the dew point of the surrounding air, a thin dew layer condenses on the mirror surface. This condensation is optically detected. A feedback loop keeps the mirror at the exact dew point by continuously controlling the mirror temperature. A precision RTD (Resistance Temperature Detector) is imbedded just beneath the surface of the mirror, allowing the dew point temperature to be accurately measured.

Maintenance is easy. Ambient temperature effects, hysteresis, and calibration drift with age are virtually non-existent. Filter replacement and cleaning the mirror with a cotton swab restores the transmitter to its original condition.

Wall Mount
Performance:
Accuracy: ±0.5ºC (±1.0ºF)
Repeatability: ±0.05ºC (±0.1ºF)
Hysteresis: None

Functional
Output:
Dew Point: Platinum RTD, 4 wire, 100 ohms at 0ºC (DIN) 4-20 mA (1-5 VDC) optional
Ambient Air Temp.: Platinum RTD, 4 wire, 100 ohms at 0ºC (DIN) 4-20 mA (1-5 VDC) optional
Power Supply Voltage Options: 24 VDC (12-35 V), load dependent; 115 VAC, 50-60 Hz (100-120V); 24 VAC, 50-60 Hz (22-26 V); 230 VAC, 50-60 Hz (200-240 V); 10 watts maximum

Operating Conditions
Sensor:
Dew Point: -24 to +58ºC (-10 to +136ºF)
Ambient Temperature: 0º to +60ºC (+32º to +140ºF)
Equivalent RH: 10% to 90% at 26º C(80ºF)
Pressure: Ambient
Air velocity: still air
Physical
Weight: 2.5 kg. (5.0 lb.)

Pipe/Duct Mount
Performance:
Accuracy: ±0.5ºC (±1.0ºF)
Repeatability: ±0.05ºC (±0.1ºF)
Hysteresis: None

Functional
Output:
Dew Point: Platinum RTD, 4 wire, 100 ohms at 0º (DIN) 4-20 mA (1-5 VDC) optional
Power Supply Voltage Options: 24 VDC (12-35 V), load dependent; 115 VAC, 50-60 Hz (100-120V); 24 VAC, 50-60 Hz (22-26 V); 230 VAC, 50-60 Hz (200-240 V); 10 watts maximum

Physical
Weight: 2.5 kg. (5.0 lb.)

Mounting Options
Duct mount plate (std.): Attaches to duct and allows easy installation and removal using wing nuts.
Pipe mount compression fitting: (1" NPT to 1" compression) standard.

Operating Conditions
Sensor:
Dew Point: -40 to +68ºC (40 to +155ºF)
Ambient Temperature: 0º to +70ºC (+32º to +160ºF)
Equivalent RH: 10% to 90% at 26º C(80ºF)
Pressure: 3m (10 ft) water column
Duct Air velocity: 150 to 900 m/min (500 to 3,000 ft./min)
Electronics: Ambient Temperature: 0º to +50ºC (+32º to +122ºF)

Ordering Information:
  -  * For wall mount with air temperature select
     two output modules, one for dewpoint, one for
     temperature.
  -