Casella CEL Environmental enclosure for Microdust - Manual (Page 8)

Page 8 of 20 Page 13 of 20
Using the Enclosure Using the Enclosure
00040
2. USING THE ENVIRONMENTAL ENCLOSURE
2.1 Installation
A dense foam block is used to prevent the battery from moving during
transit. Remove this transit packing block before using the Environmental
Enclosure and keep it for use the next time the Enclosure must be
transported.
Figure 3: Installing the instrument
Note also that the Microdust pro
unit is a very close fit in the foam
cutout intended for it. Install the unit
in the enclosure as follows
1. Hold the unit over the cutout
at an angle of approximately
45 o as shown in Figure 3.
2. Ease the probe clip into the
slot provided for it as
shown.
3. Lower the unit into the
cutout, ensuring that the
edge of the clip is below
the surface of the foam and
pushed firmly against the
back of the slot.
4. Connect the power supply
cable to the charging socket
of the Microdust pro as
shown in Figure 4.
5. When removing the
Microdust pro unit,
disconnect the power
supply from the charging
socket, then place a finger
in the slot indicated in
Figure 4 to gently lever the
unit from the foam.
The following additional steps must
be performed before the
Environmental Enclosure can be
used under operating conditions.
1. Re-set the timer display on the pump by holding down the “RESET”
button on the VORTEX until the display re-sets to 0.
2. Start the pump by pressing both buttons on the VORTEX simul-
taneously until the green LED comes on.
3. Start the Microdust logger according the Microdust pro User Manual.
2.6 Starting a Sample Run
1. Remove the protective dust cap and fit the sample inlet tube/head
to the case.
2. Switch the Power Control unit on.
3. Switch the Microdust pro and VORTEX pump on.
4. Confirm the Microdust zero calibration setting using the in-line filter.
5. Insert the PUF filter foam(s) and sample filter (as required).
6. Check the inlet flow rate.
7. Start the Microdust logger according to the MICRODUST pro
User Manual.
8. Zero the pump counter if required.
9. Leave to sample for the required run time.
ENVIRONMENTAL ENCLOSURE
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