SKC Limited SPLIT2 - Manual (Page 13)

13
The correct inlet must now be fitted as shown below:
*AUTO - ZERO*
Please clean optics
before Auto - Zero
Run
Review Data
Special Functions
Auto-Zero
Before using the SPLIT2 to do an actual sample an AUTO-ZERO must be performed.
To carry out an AUTO-ZERO in either the Passive or Pumped mode please do the following.
Configure the sensing head for the type of dust fraction required, as shown in the previous page. e.g. Passive or Pumped.
Only if using the Pumped mode Set the pump to run at 2.0 L/min before the Auto - Zero is carried out. Make sure the pump is
switched ON during Auto-Zero. Only fit the Zero filter for pumped mode. For passive mode choose a clean air area.
Preferably fit the Zero Filter or make sure you are in a dust free
area. To go to the AUTO-ZERO option press either the down
button or the up button until the arrow is opposite the Auto-
Zero option. Press ENTER button to go to Auto -Zero mode.
A screen will briefly appear suggesting that the optics are cleaned.
To clean the optics, remove the cover of the sensing head. Wipe
with a lint free cloth or clean with Isopropyl alcohol. Do not
spill IPA over the sensor head as this may cause damage
Within a couple of seconds another screen will appear giving the
choice of continuing with the Auto - Zero or Cancelling
The arrow should be opposite the Auto - Zero option
Press the ENTER button to Auto - Zero
If the Cancel option is taken, additional screens will appear. To get
back to the main menu select Cancel on all the screens
Auto - Zero
Cancel
3. Setting the time and date:
See page 10.
PREPARING TO TAKE A SAMPLE
Filter
IOM Cassette
Front ONLY
Filter ring
already comes
ATTACHED to
sensor
SPLIT2 Sensor
Front plate
Optional Foam Insert
None for Inhalable,
BLACK for Thoracic,.
WHITE for Respirable
4. Doing an Auto-Zero
Cassette grid Rubber sealing ring