Wet Bulb Temperature Sensor 4 20ma

Optional outputs dew point wet bulb temperature and enthalpy can be easily selected by a single dip switch or can be.

Wet bulb temperature sensor 4 20ma.

Construction different materials react differently to different humidities so this temperature is needed when designing a building in different climates. Hmt120 wet bulb dry bulb transmitter for cooling towers current loop. Using a capacitive rh sensor and an rtd temperature sensor the unit s microprocessor computes the dew point wet bulb or enthalpy. Wall mounted humidity sensors hmw82.

Electronic humidity sensors such as hr03 xh20p hmd42 and hmw82 for all humidity controls. 2 wire loop powered or 3 wire voltage output configurations. The hmt120 is delivered with a weather shield for the transmitter unit to protect it from the outdoor elements. At lower humidity the wet bulb temperature is lower than dry bulb temperature because of evaporative cooling.

Model wb4 wet bulb transmitters are rugged compact and ideally suited for monitoring wet bulb in building automation and process applications. 2 digital s300 inputs for external sensors isolated output. Combined humidity and temperature sensors with twin 4 20ma output. At 100 relative humidity the wet bulb temperature is equal to the air temperature dry bulb temperature.

The 2 wire hms82 transmitter measures relative humidity and temperature in outside air osa. 2 binary inputs isolated optionally. Two linear outputs provide a 4 20 ma signal for wet bulb and a 4 20 ma signal for dry bulb. Wet and dry bulb temperature relative humidity resolution 0 1 uncertainty 1.

The wet bulb temperature might not be a widely known measure but it has some valuable functions. Kele is the leading supplier of building automation products. Wet and dry type humidity sensor pola sxps for use with pola hp models hp14 hp27 hp46 hp57. Wet dry dual pt100 thermometer module with 4 to 20 ma outputs for high accuracy relative humidity measurement or humidity measurement in high temperature or constantly wet environments.

The vaisala humicap humidity and temperature transmitters hmt120 and hmt130 incorporate the vaisala humicap technology with humidity sensor humicap 180r. Two linear outputs provide a 4 20ma signal for dew point wet bulb or enthalpy and a 4 20 ma signal for dry bulb. Duct mounted humidity sensors hmd42. The hmt120 is intended for outdoor wet dry bulb measurements in hvac cooling tower applications.

Hms82 outdoor humidity dew point wet bulb enthalpy and temperature sensor for hvac and cooling towers current loop 3 accuracy. Using a capacitive rh sensor and an rtd temperature sensor the unit s microprocessor computes the wet bulb. 2 channel temperature pt1000 resolution 0 01 c uncertainty 0 1 c. Snowmaking snow production needs low temperatures and when the humidity decreases the temperature rises.