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.

4 channel 0 10v or 4 20ma analog input. The vaisala humicap humidity and temperature transmitters hmt120 and hmt130 incorporate the vaisala humicap technology with humidity sensor humicap 180r. At 100 relative humidity the wet bulb temperature is equal to the air temperature dry bulb temperature. At lower humidity the wet bulb temperature is lower than dry bulb temperature because of evaporative cooling.

Snowmaking snow production needs low temperatures and when the humidity decreases the temperature rises. Two linear outputs provide a 4 20ma signal for dew point wet bulb or enthalpy and a 4 20 ma signal for dry bulb. The wet bulb temperature might not be a widely known measure but it has some valuable functions. Construction different materials react differently to different humidities so this temperature is needed when designing a building in different climates.

Using a capacitive rh sensor and an rtd temperature sensor the unit s microprocessor computes the wet bulb. 2 digital s300 inputs for external sensors isolated output. 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.

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. Duct mounted humidity sensors hmd42. Kele is the leading supplier of building automation products. Two linear outputs provide a 4 20 ma signal for wet bulb and a 4 20 ma signal for dry bulb.

Combined humidity and temperature sensors with twin 4 20ma output. Wet and dry type humidity sensor pola sxps for use with pola hp models hp14 hp27 hp46 hp57. The hmt120 is intended for outdoor wet dry bulb measurements in hvac cooling tower applications. The hmt120 is delivered with a weather shield for the transmitter unit to protect it from the outdoor elements.

Two options are available. Hmt120 wet bulb dry bulb transmitter for cooling towers current loop. Hms82 outdoor humidity dew point wet bulb enthalpy and temperature sensor for hvac and cooling towers current loop 3 accuracy. Electronic humidity sensors such as hr03 xh20p hmd42 and hmw82 for all humidity controls.

2 binary inputs isolated optionally. Wet and dry bulb temperature relative humidity resolution 0 1 uncertainty 1. The 2 wire hms82 transmitter measures relative humidity and temperature in outside air osa. The wet bulb temperature wbt is the temperature read by a thermometer covered in water soaked cloth wet bulb thermometer over which air is passed.