TEL AFA4000/2, Инструкция по установке и эксплуатации

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AFA4000/2 Airflow Monitor / p.104
If the glass object does not break the beam, adjust the gain potentiometer counter-
clockwise until inserting the glass object breaks the beam.
15. If required, set sw4 to Off to disable the buzzer.
If the sash light beams intermittently sense the glass object, ensure sw1 is set to Off
(short range) and repeat steps 5 to 14 above.
If the beam is broken when the path is clear and adjusting the Gain Potentiometer
does not resolve this situation, either:
Switch
sw2 On (Diagnostic mode). After approximately 15 seconds the RX ERR and TX
ERR LEDs (Figure 65) will indicate if there is a faulty beam:
•
RXERR Red LED On – Faulty receiver
•
TXERR Red LED On – Faulty transmitter
Or:
Clean or replace the faulty component and set
sw2 to Off (Operation mode).
7.4.5 Tilt switch
No user calibration of the Tilt Switch is possible. When using a Tilt Switch, ensure that
the top panel of the fume hood is closed before switching on the Auto Sash Control
Unit.
7.4.6 Sash position sensor
No user calibration of the Sash Position Sensor is possible. The sensor provides sash
position data to the Auto Sash Controller, relative to its starting position.
7.4.7 Personnel sensor
The sensor is self-calibrating and does not need adjusting.
For optimum performance, ensure the detection field in front of the fume hood is clear
from objects and personnel when powering up the Auto Sash Control Unit.
The sensor will be fully operational approximately 10 seconds after the sensor is
powered up.
The LED on the sensor will be green if the detection area is clear and red if it is not clear.