6
Figure 6.1
, Optical Sensor DIP Switch Configuration.
Each Optical Sensor Switch is shipped from the factory with the retro
reflective sensors aligned and does not require additional adjustment of the
focus distance. It may be necessary or desirable to perform realignment of
the sensors if the flow tube was replaced or reinstalled (see p. 6.2).
6.2 Sensor Alignments
6.2.1
Position the sensor on the side panel of the flow tube until the
upper small alignment screw becomes visible through the service
hole on the side panel.
6.2.2
Using a small 1/16 hex wrench unscrews the alignment screw for
1 – 2 turns in order to release the sensor. Note: Do not
completely remove the alignment screw!
6.2.3
Perform the same procedure (6.2.2) for the second alignment
screw at the opposite side of the side panel.
6.2.4
Position the sensor on the side panel of the flow tube until the
bottom small alignment screw becomes visible through the
service hole on the side panel.
6.2.5
Perform 6.2.2 and 6.2.3 for the bottom alignment screws. This will
release the sensor and will allow positioning it in the horizontal
plane in order to change the focus distance.
6.2.6
Adjust the flow rate through the flow tube until the float will cross
the red LED beam. Find the correct position of the sensor by
moving the sensor in the horizontal plane (toward or against the
flow tube) until the red LED light on the top of the sensor will go
off.
6.2.7
Carefully secure the two bottom and two upper alignment screws.
ALARM DIP SWITCH CONFIGURATION
LEFT
ALARM
RIGHT
ALARM
ACTION WHEN SWITCH
IS” ON”
SW1
SW5
LED and Relay are On
(LATCH)
SW2
SW6
BUZZER is On (LATCH)
SW3
SW7
LED and Relay are On
momentary (FOLLOW
SENSOR)
SW4
SW8
BUZZER is On momentary
(FOLLOW SENSOR)
