SKC Limited SPLIT2 - Manual (Page 4)

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The SPLIT2 uses the principle of near-forward light scattering of an infrared radiation to immediately and continuously measure the
concentration in mg/m
3 of airborne dust particles. It can be used as a passive monitor or by connecting a sampling pump such as the
SKC Sidekick, an active monitor.
• This principle utilizes an infrared light source positioned at a 90 degree angle from a photodetector.
• As the airborne particles enter the infrared beam, they scatter the light. The amount of light received by the photodetector
is directly proportional to the aerosol concentration.
• A unique signal processes internally and compensates for noise and drift. This allows high resolution, low detection limits
and excellent base line stability.
The SPLIT2 direct reading dust monitor is a small and compact unit, and can be used as a personal sampler that not only gives a real
time profile of dust concentration, but the facility for a concurrent filter sample, all at an extremely low cost.
‘Straight out of the box’ SPLIT2 is used in a passive mode to monitor dust concentration, giving a displayed value on the LCD of the
Respiable fraction, while simultaneously data logging this information for reviewing at a later time. Display will show actual, time
weighted average, minimum and maximum concentrations
To monitor for Inhalable, or Respirable dust to ISO/CEN criteria, an I.O.M. inlet with optional foam plug is used. The I.O.M. sampler
is accepted as the preferred sampling head in MDHS 14 and complies to the ISO/CEN criteria for particulate sampling. The addition
of an external sampling pump, capable of drawing a flow of 2 litres per minute and maintaining this flow within +5%. turns the SPLIT2
into an active monitor capable of collecting a filter sample at the same time. The filter sample can be used for compliance to the
health regulations which currently require a gravimetric sample to compare against national exposure level standards. With SPLIT2
you also have a real time profile of the dust concentration over 8 hours, and the facility to correct the real time data to the
gravimetric sample. Direct reading instruments are usually calibrated against Arizona Road Dust (ARD) or dust particles with similar
characteristics. SPLIT2 allows customisation of its monitoring system to the type of dust you have on your site for more accurate and
viable results.
INTRODUCTION
The unit can be used for workplace or environmental monitoring such as:
•
Personal monitoring for compliance to health related effects
•
Walk through surveys to find ‘hot spots’
•
Background sampling for general levels of contamination
•
Fugitive emission monitoring - find out where the dust is coming from
•
General site dust levels
•
Fence line monitoring to ensure dust is not being emitted to public places
•
Checking that filter systems are working correctly
•
Indoor air quality
•
Spray booth emissions
•
Exhaust fume particulate concentrations
•
Roadside dust levels
APPLICATIONS