AFA4000/2
Airflow Monitor / p.44
5.1.1
SM7 airflow sensor installation notes
It is very important to position the SM7 airflow sensor in the correct position to give a
long-term stable reading of the face velocity.
Figure 16: Airflow sensor installation diagram
Please read the notes below and if in doubt contact us for further advice.
1.
The SM7 sensor must be positioned where it can sense the room pressure of the
laboratory. The back-connection spigot of the sensor is designed to accept a tube
with outside diameter of 25 mm, which should be connected to the inner chamber of
the fume cupboard. This tube and fittings are known
as the ‘vent kit’.
The ideal position for the end of the 25 mm diameter tube, for most fume cupboards,
is 100 mm back from the sash glass and 100 mm higher than the normal sash
opening height through the inner side wall.
2.
If possible, mount the sensor on the front of the fume cupboard and use a short
length of tube. Tube lengths of more than 1 m or smaller diameter will restrict the
Содержание AFA4000/2
Страница 1: ...AFA4000 2 Airflow monitor Installation and operating manual Issue 1 ...
Страница 50: ...AFA4000 2 Airflow Monitor p 50 Figure 21 AFA4000 2 typical connection diagram ...
Страница 51: ...AFA4000 2 Airflow Monitor p 51 Figure 22 AFA4000 2 AS typical connection diagram ...
Страница 52: ...AFA4000 2 Airflow Monitor p 52 5 4 Dimensions Figure 23 AFA4000 2 and AFA4000 2 AS dimensions ...
Страница 53: ...AFA4000 2 Airflow Monitor p 53 Figure 24 SM7 airflow sensor dimensions ...
Страница 64: ...AFA4000 2 Airflow Monitor p 64 Figure 34 Side views of a rack and pinion drive typical installation ...
Страница 87: ...AFA4000 2 Airflow Monitor p 87 Figure 61 Adjusting the personnel sensor beam angle away from the fume hood ...
Страница 90: ...AFA4000 2 Airflow Monitor p 90 6 10 Auto Sash System Control Box general wiring diagram ...
Страница 127: ...AFA4000 2 Airflow Monitor p 127 ...
Страница 140: ...AFA4000 2 Airflow Monitor p 140 Figure 69 Typical connection diagram ...
Страница 144: ...AFA4000 2 Airflow Monitor p 144 Figure 70 Connection diagram with RS232 485 converter ...