Product Introduction
Taiwan Seria High Humidity Temperature and Humidity Sensor CAEL-HH Description:
The new CAEL-HH series launched by SERIAL company, a multi-functional temperature and humidity transmitter specially designed for high humidity, meets the high requirements of temperature and humidity measurement in harsh environmental control. Through the values of temperature and relative humidity, it can calculate and output dew point temperature, absolute humidity, wet bulb temperature, specific enthalpy, and other related humidity parameters.
The sensor board contains a heater. Through appropriate heating, condensation can be avoided. At an ambient temperature of 25°C and humidity of 95%, condensation occurs when the temperature drops by 0.9°C. Dew affects humidity measurement, causing readings to be higher and deviating from actual values. Appropriate heating can remove unnecessary dew on the sensor board, restoring good measurement accuracy and response speed.
It also reduces corrosion and extends the sensor's service life.
The heater function has two modes: R-HEAT periodic heating mode and I-HEAT intelligent heating mode. Both modes can be enabled simultaneously or one can be turned off via the display settings.
R-HEAT is a periodic heating mode. When the following two conditions are met simultaneously, R-HEAT will execute the heating process. One is a fixed periodic check time, which can be set from 1 to 24 hours. The other is a set humidity check point, which can be set from 60% to 99%RH. Whenever the fixed periodic check time is reached and the ambient humidity is higher than the humidity check point, this triggers the R-HEAT condition and starts the heating process.
I-HEAT is an intelligent heating mode. It determines whether condensation occurs through intelligent checks to decide whether to execute the heating process. I-HEAT checks internal parameters every hour, such as raw humidity value, humidity stability, temperature stability, and temperature-humidity dependence, combining this information to detect whether condensation occurs on the sensor board.
When the heating process starts, the heater turns on for 30 seconds, during which the sensor board temperature rises by about 20°C, then the heater turns off. When the temperature rises, dew on the sensor board is removed, and humidity drops below the current ambient level. During the entire process, the actual sensor temperature rises and humidity falls. To avoid affecting normal monitoring operations, the sensor maintains its output before the heating process for about 10 minutes.
Because the output remains unchanged, there may be errors between the sensor output and the actual ambient temperature and humidity during this time. Please pay attention to operation.
During the heating process, the LCD display shows 'HEAT' to indicate the heating process. The 'periodic check time' and 'humidity check point' of R-HEAT can be set via LCD operation. The I-HEAT function can be turned on or off via LCD operation. If the LCD display is not selected, the parameters of R-HEAT and I-HEAT can be specified when ordering.
The CAEL-HH series multi-functional temperature and humidity transmitter has wall-mounted, duct-type, and separate probe types. The metal probe can withstand high temperature, pressure, and mechanical stress from harsh environments. The fine waterproof housing prevents environmental contamination and condensation. The measured parameter values are output through two analog channels, which can be current output or voltage output. RS485 connection can easily establish a network for remote monitoring and data recording. Measurement data is stored in a database for analysis and processing. The LCD display can simultaneously show three measurement parameters or a single enlarged display, providing different visual needs. Touch buttons allow settings without opening the housing, including output selection, range setting, parameter adjustment, and single-point adjustment of temperature or humidity, without needing to carry a computer to the site. Alarm output selection provides the possibility of equipment power control, making engineering design more convenient and economical.
Taiwan Seria High Humidity Temperature and Humidity Sensor CAEL-HH Features:
Heating function effectively removes dew, maintains accurate measurement, and prevents corrosion
Built-in heater to prevent condensation
Full range 0-100%RH measurement
Temperature measurement range up to 120°C
Probe pressure range up to 10 bar
IP-65 protection rating
User zero calibration
Analog 4-20mA / 0-10V, RS485 output
Communication protocol MODBUS RTU
Alarm output
Temperature range DIP switch
Configurator with complete setting functions
Taiwan Seria High Humidity Temperature and Humidity Sensor CAEL-HH Applications:
High humidity environments, mushroom farms
MAU fresh air handling units
Cleanroom air conditioning systems
Pharmaceutical industry, paper industry
Environmental test chambers, spraying equipment
Agriculture, livestock farms
Greenhouses, storage rooms, cooling rooms
Building automation
Environmental and ventilation control
Taiwan Seria High Humidity Temperature and Humidity Sensor CAEL-HH Dimensions:
