Vaisala HMW 88: Humidity and Temperature Transmitter

รหัสสินค้า : Vaisala HMW88

Download Technical Datasheet

For more information contact : Wichai Tantipimkul Tel. 08-1934-2570

* Warranty 1 year. (Machine only) * Please check prices again.

for Building Automation Applications

Wall mounted transmitters shall incorporate a thin film polymer capacitive INTERCAP® relative humidity sensor. Sensor to be interchangeable in the field and calibration free. Accuracy is ±3% RH from 0 and 90% RH and ±5% from 90 to 100% RH between +10 ... +30 °C (+50 ... +86 °F). Sensor to have a stability of ±2% RH over a two year period. Transmitter shall operate over a humidity range of 0…100%. Transmitter to be loop powered by 10… 28 VDC (at 0Ω load) or 20…28VDC (at 600Ω load) and provide a linear output signal of 4…20 mA corresponding to 0 to 100% RH. Temperature sensor shall be a platinum 1000Ω RTD with a linear output of 4…20 mA corresponding to -40° to +60°C (-40° to +140°F) with an accuracy of ±0.3°C (0.54° F) at 20°C (68°F). Shall have options to calculate and output additional parameters: dew point temperature, wet bulb temperature, and enthalpy. Transmitter shall have a NEMA4 enclosure. 

Features/Benefits

• Reliable transmitters for basic HVAC humidity measurements
• ±3.0 %RH accuracy
• Optimized for easy installation and low maintenance
• User exchangeable INTERCAP® sensor for easy field replacement
• Output parameters: relative humidity and temperature with optional dewpoint temperature, wet bulb temperature and enthalpy
• NEMA4 housing