Installation
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optek-sensors AS56, Version 04.2010_1.2US, 15.04.2010
www.optek.com
5Installation
5.1 General installation instructions
Before installing the sensor, the weld-in port, an adapter or T-piece has to be
installed into the pipeline. In case of installing weld-in port AS25-GS60,
distortion has to be corrected after welding! Modify the interior drill hole of
24.7 mm (0.98 '') to obtain the nominal diameter 25 H7 (25.0-25.032 mm;
0.98-0.99 '') before installing the sensor!
In the following, different sensor positions are considered (see fig. 11):
1. Avoid vertical installation from top,
entrapped gas at top of port is possible,
product may adhere to the windows
2. Beveled top installation is recommended,
no entrapped gas at top of port,
product drains off the windows, easy insertion / removal of sensor,
good cleanability
3. Horizontal installation is recommended,
no entrapped gas at top of port, product drains off the windows,
easy insertion / removal of sensor, good cleanability
4. Beveled bottom installation is possible,
product drains off the beveled windows,
insertion / removal of sensor impractical, poor cleanability
5. Avoid vertical installation from bottom,
product may adhere to the windows,
insertion / removal of sensor impractical,
extremely poor cleanability due to port sump
Fig. 11 Sensor positions
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