World leader in sampling technologies
SKC Ltd
11 Sunrise Park, Higher Shaftesbury Road
Blandford Forum, Dorset DT118ST
f: 01258 450968 e: info@skcltd.com
CONTACT NUMBERS for SKC Ltd
Tel: 44 (0) 1258 480188
Fax: 44 (0) 1258 480968
Web: http://www.skcltd.com
Keep a record of your equipment history in the space provided
Model
Serial number
2
Date of purchase
Recalibration record
year
month
day
This manual is for Split2 units supplied after September 2004
05 06
07
08
09
10
11
12
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14
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Copyright SKC Ltd 2004. All rights reserved
FM 24816
CONTENTS
INTRODUCTION .................................................................................. 4
APPLICATIONS ................................................................................... 4
3
SKC Ltd
11 Sunrise Park, Higher Shaftesbury Road
Blandford Forum, Dorset DT118ST
f: 01258 450968 e: info@skcltd.com
DIAGRAMS AND PARTS LIST OF THE SPLIT2................................ 5
BATTERY DETAILS, CLEANING OPTICS, SOFTWARE ................... 6
SPECIFICATIONS ............................................................................... 7
CONTROLS.......................................................................................... 7
BEFORE YOU START.......................................................................... 8
INITIAL SET UPS ................................................................................ 9
SETTING UP THE TIME AND DATE................................................. 10
PASSIVE OR PUMPED MODE ..........................................................11
THE DIFFERENT INLETS ..................................................................11
PREPARING TO TAKE A SAMPLE .................................................. 13
DOING AN AUTO-ZERO .................................................................... 13
SETTING THE ALARM ...................................................................... 14
SETTING THE SAMPLE RATE ......................................................... 15
TAKING A SAMPLE ........................................................................... 16
REVIEWING THE DATA AND DOWN LOAD TO PC ................... 17-18
CORRECTION FOR DIFFERENT DUST FRACTIONS .................... 19
CALCULATING THE SCALE FACTOR ............................................ 20
SPAN CHECK USING THE CALIBRATION POST .......................... 21
TEMPERATURE DIFFERENCES ..................................................... 22
PARTS LIST AND CONSUMABLES ................................................ 22
INTRODUCTION
The SPLIT2 uses the principle of near-forward light scattering of an infrared radiation to immediately and continuously measure the
concentration in mg/m3 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.
4
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.
APPLICATIONS
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
DIAGRAMS AND P A RTS LIST
Please unpack your new SPLIT2 and ensure that your kit is complete.
5
1 SPLIT2 unit in carry pouch, with detachable strap
2 Detachable sensor on a ‘curly’ cable, with IOM body,
and complete IOM cassette.
3 Sensor mounting bracket with lapel clip
4 IOM cassette front with washer, cap and clip
5 IOM front plate
1 SPLIT2 unit, carry pouch not pictured
2 Detachable sensor on a ‘curly’ cable
5 IOM front plate
3 Sensor mounting bracket with lapel clip
2 Detachable sensor on a ‘curly’ cable as above
with IOM fitted to rear. (Bracket not attached)
Diagram shows the parts of the rear to sensor head
6 Calibration post
7 Zeroing filter
8 Computer cable
9 Factory calibration certificate
10 CD - manual and software
Data
Transfer
port
Sensor head with IOM
attached
}
4 button
controls
not illustrated
Side view
of sockets
See below
4 IOM cassette front with washer, cap and clip
Sensor head
front view
parts of the front
cassette
6 Calibration post
Location Pin
side view
rear view
Side View
Attaching accesories
Sensor plugs in here
7 Zeroing filter
On/off reset
Charging socket
(Unit pictured from side in
pouch)
BA TTERY AND OPTIC MAINTENANCE
Battery Relacement & charging
6
This instrument operates on a rechargeable NiMH battery pack.
This is recharged while in the unit, using the jack socket and
charger supplied.
Please note that the battery charger provided is not
recommended for use as a mains adaptor.
The SPLIT2 has a Lithium battery back up for data retention even
if the main batteries are exhausted or not fitted.
Cleaning the Optics
Regular cleaning of the optics will maintain and optimise the
accuracy of the SPLIT2.
• Switch off the unit and disconnect the sensor from the unit
• Remove the sensor from the back plate by unscrewing
the two retaining screws.
• Unscrew the 3 retaining screws on the light chamber.
• Remove the light chamber cover.
• This allows access to the emitter and receiver lenses.
• Clean the lenses with Isopropyl Alcohol using a cotton bud
•
If required the chamber can also be cleaned with compressed
air, of the type used to clean cameras lenses.
• Replace the light chamber cover and retaining screws.
• Remount the sensor on the back plate using the two
screws
• An AutoZero should now be performed. see p14.
Should it be necessary to replace the battery pack, it is located in
the side panel.
• Unscrew the two battery compartment retaining screws
and slide out the battery holder.
• Unclip the connector and remove battery pack
• Replace with a suitable SPLIT2 battery pack.
IOM Front
Plate
Lenses
Light chamber cover
Complete sensor
Back plate
Retaining screws
Using the Software
Take full advantage of all the SPLIT2 features. Save data, create reports, and much more.
Use of the software is covered in the separate manual also included on the CD.
Please read through the software manual before attempting to install the software to your PC.
SPECIFICATION
Calibration NIOSH 0600 with ARD
Accuracy + 10%
Precision 0.02 mg/m
Sensing range 0.01 to 200 mg/m
Particle size ranges 0.1 to 10 micron Respirable (Use IOM and selective foam)
0.1 to 50 micron Thoracic (Use IOM and selective foam)
0.1 to 100 micron Inhalable (Use IOM inlet)
Recording time 1 second, 1 minute and 10 minute averages
Memory 21,500 data points
Locations Up to 999 storage locations
Data display 20 character, 4 line backlit LCD
Output RS-232
Operating temperature 0°-50°C
Humidity range 95% non-condensing
Battery NiMH rechargeable battery
Battery life 8 hours minimum when fully charged
Size 18 x 8.. x 4.5 cm protruding sockets and belt clip excluded from measurements
Weight 780 grammes
Software WindowsTM 98, 2000, NT, XP
Flow rate 2.0 litres per minute using external pump (not included)
Optional Sampling Pump Sidekick Pump. Part #224-50 or 224-52TX
3
3
7
CONTROLS & LCD
Switching on the SPLIT2
SPLIT2 version 3.2 onwards features a manual on/off switch on
the side, located adjacent to the charger socket.
This must be on for the control panel to become activated.
We recommend switching off by this method, to deactivate the
keypad at the end of sampling or whenever the unit is put away.
The manual switch can also be used as a reset if required.
ON/OFF button:
Turns the SPLIT2 on and off
Run
Review Data
Special Functions
Auto Zero
Example of 4 line LCD display of the SPLIT2
DOWN button
ON/OFF button ENTER button
ENTER button: Activates the SELECTED
option. Shown by an arrow to the left of the
menu line
Scrolls the Selection Arrow up one line
Scrolls the Selection Arrow down one line
UP button
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