SKC 224-PCMTX8 Step-By-Step Manual Download Page 20

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SKC Limited

11 Sunrise Park, Higher Shaftesbury Road, Blandford Forum, Dorset DT11 8ST

United Kingdom

T: +44 (0) 1258 480188 F: +44 (0) 1258 480184 E: [email protected] W: www.skcltd.com

224-G3 Issue E July 2015

Specialists in Air Sampling Technologies

A member of the SKC global group of companies

Summary of Contents for 224-PCMTX8

Page 1: ...www skcltd com Step by Step Guide An Introduction to Air Sampling Universal Pump ...

Page 2: ...erstanding of the approach you should take to sampling in your particular industry As an expert in the field of air sampling SKC believe in supporting customers every step of the way so in addition to the Step By Step guides there is a range of training seminars available to help you get the best from your sampling equipment If you are new to air sampling our one day seminar A Practical Course in ...

Page 3: ...w adjust screw Keypad cover Keypad cover screw Keypad Battery pack Belt clip Charging jack socket Battery pack screws Low flow mode screw cover Exhaust port cover Cover over low flow regulator Model depicted 224 PCTX8 Features vary by model The flow indicator is for use only to identify changing flow conditions during sampling such as a reduction in flow caused by a crimped tube It must not be use...

Page 4: ...inlet spout and filter support grid can now be removed by pulling forward gently The two halves of the cassette clip together and can be separated with gentle pressure Once separated a filter can be placed in the support grid Snap the inlet spout into the support grid making sure it is seated down properly The cassette is replaced into the body of the sampler and the front plate screwed on firmly ...

Page 5: ...on the type To read a ball type rotameter correctly take the reading at the centre of the ball To read a float type rotameter correctly take the reading at the top edge of the float The float of a float 0 5 0 5 0 5 3 3 2 2 1 1 0 0 The correct flow rate for the I O M sampler is 2 0 litre min Inhalable dust is taken to mean any solid particle which by its small size can be carried in an airflow or r...

Page 6: ...ensure a good seal If using a non SKC rotameter use the hosetail fitting and length of tubing supplied with the calidaptor to connect the calidaptor to the rotameter Fit the I O M sampler to the calidaptor and secure with the finger screw 0 5 0 5 0 5 3 3 2 2 1 1 0 0 6 The pump flow rate is adjusted using the smallest bladed screwdriver attachment of the toolkit supplied with the pump Unscrew and r...

Page 7: ...ing Zone I O M Sampler Pump Once the pump is mounted on the worker in a satisfactory way remove the cassette cover and switch on the pump IMPORTANT The start time of the sample should be noted 9 At the end of the sample switch off the pump replace the cassette cover and note the finish time of the sample Remove the sample train from the worker and once away from the sample location re check the fl...

Page 8: ... rate Filter transport cassette 0 5 0 5 0 5 3 3 2 2 1 1 0 0 The correct flow rate for the cyclone sampler is 2 2 litre min 1 Mount the filter paper that is not pre weighed into the cyclone cassette as shown below The easiest way to place the filter in the cassette is as follows Cassette top Filter support grid Filter Cassette bottom Remove the top half of the cassette and place it upside down on a...

Page 9: ...n rotameters To read them correctly depends on the type To read a ball type rotameter correctly take the reading at the centre of the ball To read a float type rotameter correctly take the reading at the top edge of the float Refer to the figure below The float of a float type rotameter is usually marked with a number of dots The dots give indication that the float is spinning in the airflow thus ...

Page 10: ...ually coloured blue sometimes found in boxes of filters instead of the filters themselves usually white Once the flow is set to the required level of 2 2 litre min switch the sample pump off 8 Remove the filter cassette from the cyclone sampler body replace the filter paper in the cyclone cassette with the pre weighed filter paper and refit the cassette into the cyclone sampler Check the flow rate...

Page 11: ...the flow rate check is carried out as quickly as possible to minimise the chance of collecting anything that may affect the final result Remove the filter cassette from the cyclone sampler Open the filter cassette carefully lift out the filter and post weigh it If the sample is to be sent to a laboratory for further analysis carefully transfer the filter onto the support grid in a transport casset...

Page 12: ...bing Turnon the pump and adjust the flow rate to 1 5 litre minute Note The sample pump must be in the high flow mode during this process This is the required flow rate for correct operation of the pump s built in low flow regulator Switch off the pump and disconnect the flow calibrator No further adjustment of the pump flow rate should be made 2 Unscrew the low flow mode screw cover from the top o...

Page 13: ...aded screwdriver attachment of the toolkit as shown above Once the flow rate is set to the required level depending on tube type and sampling method switch off the pump 5 The sorbent tube used to set the flow rate is now removed from the tube holder and replaced with a clean tube with both ends broken off The exposed end of the tube should be protected with the tube cover which screws onto the low...

Page 14: ...ied The start and finish times sample duration worker s name start and finish flow rates and any other relevant details of the sample should be noted down and indexed to the sorbent tube by number or code The importance of blanks Sample blanks are in general ignored by a lot of people but do offer an important and required benchmark for accurate samples Prepare and handle a sorbent tube the same w...

Page 15: ...rate of 1 0 litre minute If you plan to sample on a personal basis use an in line trap and a pouch to attach to a subject Details shown in the text on personal sampling are identified in italics and contained in brackets You will need Universal sample pump fully charged Impinger Impinger trap and trap sorbent Flexible tubing Bracket or pouch Flow calibration device capable of measuring the flow ra...

Page 16: ...the liquid in the impinger filling to the correct level as advised in the method you are following The complete unit can now be placed in the work place and switched on Mount the sample train comprising the sample pump tubing sorbent trap impinger and pouch onto the worker who is to wear it during the sample A length of tube should be run from the impinger to a position as close to the breathing z...

Page 17: ... for the suction from the pump the other is to supply the sample bag with the sampled air By turning the pump on air inside the container is drawn out producing a negative pressure inside the container In order to maintain pressure equilibrium inside the container air is now drawn into the sample bag via the tube to atmosphere 1 Before placing the bag into the container open its valve Pinch closed...

Page 18: ...line between the duct probe and sorbent tube as shown below The sorbent tube must be held vertical during calibration 2 Once the calibration is complete the sorbent tube is replaced with a new one the calibrator removed from the sample train and the sample taken The sorbent tube must be held vertical during the sample Note The probe must be inserted far enough into the duct to be in smooth air awa...

Page 19: ...r Tubing Pump Sampling Device Sample Train Check List Ensure the pump is fully charged and in good condition Treat the filter media with care Calibrate in a clean area to avoid contamination of the sample media Ensure the flow rate is set at the correct level required for the sampling device or methodology Ensure that all connections are leakproof and secure Mount the sampler in the breathing zone...

Page 20: ...sbury Road Blandford Forum Dorset DT11 8ST United Kingdom T 44 0 1258 480188 F 44 0 1258 480184 E info skcltd com W www skcltd com 224 G3 Issue E July 2015 Specialists in Air Sampling Technologies A member of the SKC global group of companies ...

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