TEL AFA4000/2, Installation And Operating Manual

Page: 81 / 177

AFA4000/2 Airflow Monitor / p.81
Figure 54: Sash position sensor
2. Mark the fixing holes on the framework and attach the sensor.
The fixing bracket has two 0.37 mm (0.015") diameter fixing holes.
Note: Ensure that the sensor is in a position that does not over extend the draw wire.
The sensor draw wire full stroke is 1270 mm (50") maximum.
3. Attach the draw wire to either:
• The sash using a suitably sized screw, the draw wire has a 9.53 mm (0.38") diameter
fixing ring with a 4.85 mm (0.18") diameter fixing hole in its centre.
•
The sash cable using a cable tie, ensuring that the fixing ring does not run over the
pulleys.
•
The counterweight using a cable (Figure 55).