Wet Bulb Temperature Sensor 4 20ma

Two options are available.

Wet bulb temperature sensor 4 20ma.

Wet and dry type humidity sensor pola sxps for use with pola hp models hp14 hp27 hp46 hp57. The wet bulb temperature might not be a widely known measure but it has some valuable functions. 2 digital s300 inputs for external sensors isolated output. Electronic humidity sensors such as hr03 xh20p hmd42 and hmw82 for all humidity controls.

2 channel temperature pt1000 resolution 0 01 c uncertainty 0 1 c. Duct mounted humidity sensors hmd42. Two linear outputs provide a 4 20 ma signal for wet bulb and a 4 20 ma signal for dry bulb. 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.

Optional outputs dew point wet bulb temperature and enthalpy can be easily selected by a single dip switch or can be. Kele is the leading supplier of building automation products. Wall mounted humidity sensors hmw82. Using a capacitive rh sensor and an rtd temperature sensor the unit s microprocessor computes the dew point wet bulb or enthalpy.

The vaisala humicap humidity and temperature transmitters hmt120 and hmt130 incorporate the vaisala humicap technology with humidity sensor humicap 180r. Using a capacitive rh sensor and an rtd temperature sensor the unit s microprocessor computes the wet bulb. 2 binary inputs isolated optionally. Model wb4 wet bulb transmitters are rugged compact and ideally suited for monitoring wet bulb in building automation and process applications.

Hmt120 wet bulb dry bulb transmitter for cooling towers current loop. The 2 wire hms82 transmitter measures relative humidity and temperature in outside air osa. Wet and dry bulb temperature relative humidity resolution 0 1 uncertainty 1. 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. The hmt120 is intended for outdoor wet dry bulb measurements in hvac cooling tower applications. 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.

At 100 relative humidity the wet bulb temperature is equal to the air temperature dry bulb temperature. Combined humidity and temperature sensors with twin 4 20ma output. Hms82 outdoor humidity dew point wet bulb enthalpy and temperature sensor for hvac and cooling towers current loop 3 accuracy. Snowmaking snow production needs low temperatures and when the humidity decreases the temperature rises.