There are many technical parameters of temperature and humidity transmitters, and if users are not sure about these in the purchase process, it is likely to buy wrong. We will analyze the measurement range, measurement accuracy, and output signal of the temperature and humidity transmitter.

Range of temperature and humidity transmitters

The temperature and humidity transmitter is the same as the measurement pressure and liquid level, and the range must be determined first. Under normal circumstances, the temperature range of the temperature and humidity transmitter is: -40 °C ~ 100 °C, and the humidity range is: 0-100%RH.

Accuracy class of temperature and humidity transmitters

Accuracy is an important indicator for temperature and humidity transmitters. In most cases, if there is no precise means of temperature control, or if the measured space is non-sealed, a temperature and humidity transmitter with a ±5%RH accuracy is sufficient. For local spaces that require precise control of constant temperature and humidity, or occasions where humidity changes need to be tracked and recorded at any time, then choose a temperature and humidity transmitter with an accuracy of ± 3%RH or more. The higher the accuracy of the temperature and humidity transmitter, the higher the price.

Output signal of temperature and humidity transmitter

The output signal of the temperature and humidity transmitter is available in three forms, current type, voltage type and digital type. Temperature and humidity transmitter current type is the output signal is 4~20mA, temperature and humidity transmitter voltage type output signal is 0-5VDC or 0-10VDC. The digital output signal of the temperature and humidity transmitter is RS485.

Of course, when choosing a suitable temperature and humidity transmitter, I don’t know the choice of the above technical parameters, such as the protection level, power supply voltage, installation method, etc. of the temperature and humidity transmitter need to be selected according to the specific site conditions.

If you have any questions, welcome to call: 400-600-4496, please indicate from the official website of Star Meter Manufacturing Co., Ltd