Wet Bulb Temperature Transmitter

The wetbulb globe temperature wbgt is a measure of the heat stress in direct sunlight which takes into account.

Wet bulb temperature transmitter.

The hmt120 is delivered with a weather shield for the transmitter unit to protect it from the outdoor elements. The humidity parameter options available are. At lower humidity the wet bulb temperature is lower than dry bulb temperature because of evaporative cooling. Hms83 outdoor humidity dew point wet bulb enthalpy and temperature sensor for hvac and cooling towers voltage outputs 3 accuracy.

At kele we make it easy to find the right humidity product. This differs from the heat index which takes into consideration temperature and humidity and is calculated for shady areas. Hms112 outdoor humidity dew point wet bulb enthalpy and temperature transmitter for hvac current loop or modbus 2 accuracy. The 3 wire hms83 transmitter measures relative humidity and temperature in outdoor environments.

Maintaining measurement traceability is easy due to field exchangeable intelligent measurement probes. Using a capacitive rh sensor and an rtd temperature sensor the unit s microprocessor computes the wet bulb. Relative humidity dew point frost point wet bulb temperature enthalpy absolute humidity mixing ratio vapor pressure and. It is typically measured with either a psychrometer or a glass bulb thermometer wrapped in a wet cloth.

Hmt120 cleanroom and hvac relative humidity dewpoint wet bulb enthalpy and temperature transmitter with exchangeable probe wall model current loop 1 5 rh 0 1 c accuracy. Model wb4 wet bulb transmitters are rugged compact and ideally suited for monitoring wet bulb in building automation and process applications. At 100 relative humidity the wet bulb temperature is equal to the air temperature dry bulb temperature. Hmt120 wet bulb dry bulb transmitter for cooling towers current loop.

The analog vaisala hms112 humidity and temperature transmitter is designed for accurate humidity and temperature measurements outdoors. The hmt120 is designed for relative humidity and temperature monitoring in cleanrooms and it is also well suited for demanding hvac applications. The hmt120 is intended for outdoor wet dry bulb measurements in hvac cooling tower applications. Optional outputs dew point wet bulb temperature and enthalpy can be easily selected by a single dip switch.

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. A wet bulb temperature is the lowest measurement of air temperature that results from evaporative cooling and it can be thought of as the temperature that wet skin feels when exposed to moving air.