Humidity Transmitter with Heated Sensing Probe

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Ideal for climate control in fruit and vegetable storage, in greenhouses, incubators, ripening processes or in mushroom growing

Sensor Technology

Humidity Transmitter with Heated Sensing Probe
Humidity Transmitter with Heated Sensing Probe

The new EE211 humidity transmitter from E+E Elektronik features a heated sensing probe. This leads to best accuracy and long-term stability in high-humidity (>85% RH) and even in condensing environment.

The EE211 is designed for accurate humidity and temperature measurement under continuous high-humidity or condensing conditions. The device is ideal for climate control in fruit and vegetable storage, in greenhouses, incubators, ripening processes or in mushroom growing.

Heated humidity probe

In order to avoid drift effects due to long-term exposure of the sensing elements to high humidity, the sensor head of the EE211 humidity probe is continuously heated. The permanent over-temperature leads to max. 80% RH at the sensor. Condensation-related dirt deposits as well as corrosion of the sensor are thereby prevented.

Furthermore, the unique E+E protective coating also protects the active sensor surface from contamination and corrosive influences. The combination of these features results in considerably improved long-term stability and increases both the service life and the measuring performance of the sensor.

Measured values and interfaces

The EE211 calculates the dew point temperature (Td) based on the RH and temperature values measured by the heated humidity probe. A separate, interchangeable temperature probe measures the ambient temperature (T). From Td and T the EE211 calculates back the ambient relative humidity as well as additional physical quantities like absolute humidity, mixing ratio, wet-bulb temperature or specific enthalpy.The measured values are available on the Modbus RTU interface or on two analogue current or voltage outputs. The optional backlit display can show up to three measurands simultaneously.

Easy configuration and adjustment

The Modbus RTU parameters, the scaling of the analogue outputs and the display layout can be set with the free configuration software. The user can also carry out one or two-point humidity and temperature adjustment. The temperature probe can also be calibrated separately.

Optimally protected electronics

The IP65/NEMA 4 enclosure offers optimal protection for the EE211 electronics. Additionally, for best performance even in aggressive environment, the measuring electronics inside the humidity probe are fully encapsulated.

Posted on November 4, 2016 - (638 views)
E+E Elektronik Ges.m.b.H.
Langwiesen 7
4209 Engerwitzdorf - Austria
+43-7235-6050
+43-7235-6058
View full company profile
Description

E+E Elektronik offers a wide range of sensors and transmitters for reliable and highly accurate measurement of relative humidity, temperature, dew point, air velocity, moisture in oil, co2, mass flow.

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