8612-064 Dust (Particulate) Sensor Control Board; 8612-064 Control Board Output Signal Not Responsive; Figure 79 8612-064 Dust Sensor Alarm Board - Bard MEGA-TEC W180B Service Instructions Manual

8612-064 Dust (Particulate) Sensor Control Board

8612-064 Control Board Output Signal Not Responsive

1. With a voltmeter, verify 24VAC present across
24VAC pin terminals.
A. If 24VAC is not present, trace back wires to
source.
2. Inspect and re-seat the dust sensor communication
cable.
A. Carefully remove the dust sensor
communication cable from the dust sensor
connector on the dust sensor alarm board and
the dust sensor (see Figure 79).
B. Inspect communication cable for the following:
i. Wires pulled out of the connectors.
ii. Scars in insulation exposing bare wire.
C. If communication cable is damaged:
i. Replace communication cable.
D. If communication cable is not damaged:
i. Carefully reconnect the dust sensor
communication cable to the dust sensor
connector on the dust sensor alarm board
and the dust sensor.
Manual 2100-749
Page 56 of 68
FIGURE 79
8612-064 Dust Sensor Alarm Board