Installation; Installation Location; Direct Mounting Into The Process - E+E Elektronik EE371 Manual

3

Installation

3.1

Installation location

Upon delivery the sensor is protected by a cap that keeps the dew point sensor dry. The cap should
only be removed immediately before installation into the application.
Fig. 2 Remove protection cap
For accurate measurement and short response time, the sensing head shall be immersed in the air
or gas to be monitored. The mounting of EE371 shall be tight; moisture ingress from the surroundings
falsify the measurement results.
Temperature gradients in the process do not affect the Td measurement. Pressure gradients and
variations have a strong impact on the Td measurement. For evaluating these influences the
E+E Humidity Calculator, free download from www.humidity-calculator-online.com or as free App for
iOS and Android.
3.2

Direct mounting into the process

For direct mounting (without a sampling cell) of the EE371 into the process, it is highly recommended
to install stop valves on both sides of the mounting location. This facilitates removing the transmitter for
maintenance and calibration.
Insert the probe into the process and screw it first by hand, check the correct positioning of the sealing
ring. Use an appropriate wrench to tighten with a torque of 30 Nm.
OK
Fig. 3 Direct mounting into the pipe
Sealing rings may not be used with a NPT 1/2" thread. Use appropriate PTFE sealing tape or sealant.
8
ü
û
NOT OK
Manual EE371 Dew point transmitter