Atmospheric Oil Mist Detection System
TM4 / AUGUST 2018
EMAIL [email protected] WEBSITE www.oilmist.com 4 East Barnet Road, London, England, EN4 8RW TEL +44 (0)20 7328 3121
Sheet-47
REPLACING FAN (Q1004) IN SENSOR
Remove lid by taking out the four countersunk Allen screws using 2.5mm Allen key
(Q1007).
Remove
RED
and
BLACK
wires from fan failure terminal block.
Remove four buttonhead Allen screws holding fan to air sensor using 2.5mm Allen
key.
Fit new fan by replacing four buttonhead Allen screws. Check direction arrows on
fan.
Fit
RED
wire to the + terminal of fan failure terminal block.
Fit BLACK wire to the - terminal of fan failure terminal block
.
ADJUSTING FAN FAILURE ON Q10 FAN
WARNING:
Any attempt to adjust other components on the circuit board will
invalidate the guarantee and may stop the sensor working.
1. Turn the potentiometer screw fully anti - clockwise (15 turns).
2. Connect Sensor to Monitor. The LED on the front of the air sensor will flash
GREEN
.
3. Allow 2 minutes before adjusting, by this time the LED should be
AMBER
with a
RED
pulse.
4. Slowly turn the potentiometer clockwise until the LED turns to a steady
GREEN.
5. When the LED is showing steady
GREEN
, turn the same potentiometer a further
quarter turn clockwise.
6. Test for fan failure operation by gently stopping the fan with your finger.
7. Check that the LED flashes
RED
.
8. Refit Sensor lid using the four countersunk Allen screws, ensuring red and black
wires are not trapped.
9. Wait for two minutes and ensure LED remains constant
GREEN
.
10. Installation of the Q1004 fan is now complete. Refit Sensor in chosen position.
+ _
fan
failure LED
fan failure terminal block
fan failure
adjustment
potentiometer
fan
screw
circuit board
