Operation Manual

6. Determination of the installation point

In order to maintain the accuracy stated in the technical data, the

sensor must be insert in the centre of a straight pipe section with

unhindered flow characteristics.

Unhindered flow characteristics are achieved if the section in front of

the sensor (inlet) and behind the sensor (outlet) are sufficiently long,

absolutely straight and free of obstructions such as edges, seams,

curves etc..

Please consider that enough space exists at your site for an adequate

installation as described in this manual.

ATTENTION!

Wrong measurement is possible, if the sensor is not

installed correctly.

• Careful attention must be paid to the design of the inlet and outlet

section. Obstructions can cause counter-flow turbulence as well as

turbulence in the direction of the flow.

• The sensor is for indoor use only! At an outdoor installation, the

sensor must be protected from solar radiation and rain.

• It is strongly recommend not to install S401 permanently in wet

environment as it exists usually right after a compressor outlet.

12 S401