PCEM-W100

Sensor is installed in a special measuring chamber at the end of a heated hose carrying the gas sample.
Inside the measuring chamber the temperature is kept stable at set point level. This set point is adjustable within a range between 60 and 140°C. In order to assure high measuring accuracy the measuring head set point temperature is controlled very precisely by an external temperature controller unit. The set point is selected depending on gas parameters and measuring range.
Dipped in a sample gas the polymer sensor measures its relative humidity. The available output is both digital signal in MODBUS RTU protocol (RS485 or RS232) and analogue current signal 4-20 mA.
The sample gas must be free from solid particles and free of aerosols. Gas flow must be kept on constant level in a range between 0,4÷1l/min.

Subject to technical modifications.

The humidity meter PCEM-W100 is intended for continuous measurement of H₂O volumetric concentration in air, flue gases and process exhaust gases in:

• power plants,
• combined heat and power plants,
• cement plants.

It may be used in continuous emission monitoring systems and/or for process purposes. However, the device is not suitable for measurements in flammable or explosive gases.