AFA4000/1 Airflow Monitor / p.73
When it is not possible to fix the cable to the sash wire, use small diameter trunking
to attach the cable to the sash.
Use a roller bearing or pulley where the cable runs over a metal surface.
Figure 48: Typical under sash sensor retro-installation
3. Fix the retro-reflective tape strip to the inside of the fume hood, on the opposite side
to the sensor.
Position the centre of the retro-reflective tape strip in line with the centre of the
sensor. A small offset between the sensor and retro-reflective tape strip is acceptable.
The maximum offset values are shown in Figure 49.
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