Vaisala HMD112 Humidity, Dew point and Temperature Transmitter

HMD112 Humidity and Temperature Transmitter for demanding HVAC, Duct Model, Current Loop, 2% accuracy.
The analog Vaisala HMD112 Humidity and Temperature Transmitter is designed for accurate humidity and temperature measurements in HVAC and cleanroom applications.

The transmitter comes with a 3-point traceable calibration certificate and has an accuracy of ±2 %RH
When a display is needed a RDP100 remote display can be used.

HMD112 transmitter is equipped with the proven HUMICAP® 180R sensor. The sensor’s superior long-term stability minimizes maintenance needs throughout the transmitter’s lifetime. If necessary, the transmitter can be field-calibrated using either an HM70 Hand-Held Humidity and Temperature Meter, or a PC connection.

Analog outputs are preset at the factory to:

RH model:

• Channel 1: 4 ... 20 mA = 0 ... 100% RH
  
• Channel 2: 4 ... 20 mA = -40 ... +60 °C (-40 ... +140 °F) T 
  

Dew point model:

• Channel 1: 4 ... 20 mA =-40 ... +60 °C (-40 ... +140 °F) Td
  
• Channel 2: 4 ... 20 mA = -40 ... +60 °C (-40 ... +140 °F) T