TEL AFA4000/E - Page 95

AFA4000/E VAV Airflow Controller / p.95
Switches
Setting
Description
5 & 6
Frequency
Select one of four different sensor frequencies (H;
MH; M and L) if two or more sensor beam paths
overlap.
7
Monitor mode
Select the Monitor Mode. Set the switch to 'Normal'.
Note: The 'Snow' setting is only applicable to
outdoor applications and therefore is not
used.
8
Self-Diagnostics
Setting switch 8 to 'ON' will start a self-diagnostic test
when the sensor is switched on. If the test detects a
fault the LED will continually flash red and green.