Wet Bulb Temperature Sensor 4 20ma

2 wire loop powered or 3 wire voltage output configurations.

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. 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. Hmt120 wet bulb dry bulb transmitter for cooling towers current loop.

Two options are available. The wet bulb temperature might not be a widely known measure but it has some valuable functions. Snowmaking snow production needs low temperatures and when the humidity decreases the temperature rises. At 100 relative humidity the wet bulb temperature is equal to the air temperature dry bulb temperature.

Construction different materials react differently to different humidities so this temperature is needed when designing a building in different climates. Wet and dry bulb temperature relative humidity resolution 0 1 uncertainty 1. Two linear outputs provide a 4 20 ma signal for wet bulb and a 4 20 ma signal for dry bulb. 4 channel 0 10v or 4 20ma analog input.

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 hmt120 is delivered with a weather shield for the transmitter unit to protect it from the outdoor elements. 2 binary inputs isolated optionally. The vaisala humicap humidity and temperature transmitters hmt120 and hmt130 incorporate the vaisala humicap technology with humidity sensor humicap 180r.

At lower humidity the wet bulb temperature is lower than dry bulb temperature because of evaporative cooling. 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. Wall mounted humidity sensors hmw82. Wet and dry type humidity sensor pola sxps for use with pola hp models hp14 hp27 hp46 hp57.

The 2 wire hms82 transmitter measures relative humidity and temperature in outside air osa. 2 channel temperature pt1000 resolution 0 01 c uncertainty 0 1 c. 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. Combined humidity and temperature sensors with twin 4 20ma output.

Duct mounted humidity sensors hmd42. 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. Kele is the leading supplier of building automation products.