Plastec Junior Air Control - Manual (Page 8)

2216 60th Drive East • Bradenton, Florida 34203
(941) 751-7596 • Fax (941) 751-7598 • www.plastecvent.net
INSTALLATION
1) Drill a Ø 23mm / 0.91" hole either in the top or side of the fume cupboard to allow sensor
positioning. Make sure sensor is not in a turbulent zone where the pressure can fluctuate but
where it can monitor stable changes in pressure. Attention should be paid to dead zones near the
top of the fume cupboard.
2) Proceed with wiring as seen on page “Contacts & Wiring”.
3) Position and secure monitor to service panel of the fume cupboard with the two self-tapping
screws supplied. Do not forget to position ‘O’ ring seal into the moulded groove in the back of
the face plate.
SENSOR RECALIBRATION PROCEDURE
If you experience difficulties with monitor calibration, you may need to recalibrate sensor itself by
following this procedure:
1) Connect sensor to energized monitor. Place sensor in a sealed bag to ensure no air is travelling
through it.
2) Push simultaneously for about 10s. Green and Red LED illuminates.
3) Remove sensor from bag and place into the fume cupboard.
4) Push simultaneously for about 10s. LED red is off, validating new sensor calibration.
Sensor Connection
Power Supply:
115 VAC / 12 VDC input
Laboratory Airflow Monitor
TYPE JUNIOR
Contacts and Wiring
8