MTS-32 User Manual
Contents
1. MARKES qui1013 Version 1 5 January 2015 User manual MTS 32 Markes International Ltd cs T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com A company of the SCHAUENBURG International Group www markes com QUI 1013 Page 2 Contents L SENEL OCG CIO Nicaea ucucuwusanusai asa unmiansanueneusiease vauoundesn dean asevanovauaveusesesaseuaseuesue 3 2 Principles Of operation c sccessccnsecesscenseensenseeessenssecnsennseeesseenssensees 3 2 1 Principles Of MTS 32 ventilation cceseeeeeesseeeeeseeeeeeseeeeeaeeees 3 2 2 Principles of sorbent tube sample collection using the MTS 32 4 3 Connecting the MTS 32 to a power Supply cesccescenscessensensenssenes 6 3 1 General battery requirements cccceseceeessseeeeeesseeseeaseeeeeeseeeeeas 6 3 2 Selecting the power OPTION cseccecesseeeeeesseeeeeaseeeeeaseeseeeaseeeseas 6 3 2 1 Connecting the MTS 32 to a 120 V 230 V electricity 10 0 6 Gaerne eer EE meen N ere earn nen rer nnn tr ee aeeer 6 3 2 2 Powering the MTS 32 using the integrated 12 V DCI OUD ecsstede te ate sages dateby otwanevetiessnusigesaneitapedecsuseudsnlceosac 3 2 3 Connecting the MTS 32 to an external 12 V battery 7 3 3 Powering the optional internal NEAtESS ccccccssseceeeeeeseeeeeeeeees T 4 Connecting the Sampling Pump cc ccesscssccnscesscnseensenssensennsenssensenees 8 4 1 Connecting the ACTI VOC ccccccssssece2. Reset button Figure 9 is pressed the timer is stopped and reset Note When the reset button is pressed the tube position doesn t change and the pump doesn t stop Also note that if the sequence is restarted at this point i e after the Reset button has been pressed the Sampling period for that tube will begin again at zero Moving the Manual switch S4 backwards causes the motor to drive the rotor round to position 32 where it will stop At this point moving the Manual switch forwards causes the rotor to move from position 32 to 1 Under normal timer operation the MTS 32 rotor stops at position 32 The sampling time for tube 32 is not set by the timer and would not normally provide valid data unless the pump is stopped manually after exactly the right sampling tube period 7 3 Turning on the pump to begin the sampling sequence Before switching on the sampling pump work through the following checklist 1 Check that power is connected and that the MTS 32 is switched on 2 Check the pump is in place and connected power and air inlet 3 Check that tubes are inserted and capped with DiffLok caps if appropriate A Check that the MTS 32 rotor is set at position 1 If not follow the instructions in section 7 2 pushing the manual override switch backwards to set the rotor to position 32 then pushing the same switch forwards to bring the rotor to position 1 5 Check that timer settings are correct for t
3. Weight e 165 0 36lb Input Voltage e 90 264VAC Maximum Output Power e 15W Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 16 Temperature Range e Operating O to 70 C e Storage O to 85 C Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com
4. settings However these are not applicable to MTS 32 operation so these should be set to zero Once the FLEC pump mode is switched to run see manual pumped air sample collection will begin through whichever tube is in the sampling position as indicated by the stainless steel pointer Press the green Start button to start the MTS 32 timer and ensure that the timer starts to blink approximately once per second Progress of the cycle is indicated by the bar graph on the timer LCD display see Figure 8 Note It is recommended that the pump flow rate is checked using a packed sample tube before connecting to the MTS 32 Note The current being drawn by the pump displayed on the meter see Figure 6 will vary depending on the FLEC pump pulse rate This in turn will vary depending on the tube impedance and required sample flow rate 7 4 Finishing sampling sequence The cycle will continue through all loaded tubes up to position 32 regardless of the number of tubes loaded into the MTS 32 UNLESS stopped by the operator before this point Pressing the on off switch will stop power to the whole unit thus stopping the timer pump connector plate rotor and the pump itself At the end of the cycle remove each tube in turn and replace the storage caps firmly 8 Battery charging If the system is to be re used immediately replace the battery pack with one that is fully charged 8 1 Charger circuit for alternative constant
5. if present Note The back pressure adaptor supplied with the ACTI VOC should not be used with the MTS 32 Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 9 4 2 Connecting the FLEC pump Connect the power inlet of the FLEC pump to the connection shown see Figure 6 Note When then the MTS 32 is switched on the level of current being supplied to the pump is shown on the gauge The variable resistor is only adjusted if the MTS 32 is being used with an ACTI VOC or alternative pump Connect the FLEC pump air inlet to the 1s copper tubing shown in Figure 2 Place the pump on the right hand side of the box on top of the integrated battery if present 5 Setting the timer As shown in Figure 8 the left hand alphanumeric display denotes the mode of operation of the timer This should always be set to B The far right hand alphanumeric display denotes the unit of time ranging from 0 1 s to 10h LCD Display Index Tabs Lift tab into upright position and push down to alter settings Timer operating mode Set time Time units always set to B Figure 8 Timer display The middle three alphanumeric displays denote the number of time units required per tube i e a display of BO30M denotes a sampling time of 30 minutes per tube Note Every sample tube in the sequence will be sampled for the same period of time except for the last
6. tube which continues to be actively sampled until the pump is disconnected or turned off To adjust the timer settings lift one of the tabs above or below the display Once the tab is in a vertical position it can be pressed until the desired unit is displayed The tabs above the alohanumeric marked decrease the number and those below marked increase the number When each display has been set correctly move the tab back to its horizontal position Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 10 6 Sample tube insertion Whichever number of sample tubes is to be included in the sequence they should be loaded into positions 1 upwards Conditioned and capped standard sized tubes should have both caps removed and a DiffLok cap placed on the sampling grooved end The tube should then be quickly inserted in the appropriate position in the MTS 32 tube manifold block Note Tubes should be unsealed and inserted into the manifold block one tube ata time If using SafeLok tubes a DiffLok cap is not required on the sampling end Simply uncap the tubes and place into the tube manifold block 7 Operation 7 1 Turning on the power Turn on the power to the MTS 32 by pressing the black on off switch on the control panel Figure 9 The motor driving the rotor may operate at this point depending on its previous status Press the red re
7. C e Humidity 10 to 95 non condensing Note Use of the optional heater will extend the humidity to 100 10 2 Accessories 12V Sealed Lead Acid Battery 12V Charger for Lead Acid Battery 12V Power Supply 10 2 1 Sealed Lead Acid Battery 12V Dimensions e Height 9 5cm 3 7 e Width 9 8cm 3 9 e Length 15 1cm 5 9 Weight e 3 6kg 7 9lb Approx Cells per Unit e 6 Voltage per Unit e 12 Capacity e 12 0AH 20hr rate to 1 80V per cell 25 C Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com QUI 1013 Page 14 www markes com QUI 1013 Page 15 Max Discharge Current e 180A 5 sec Internal Resistance e 14mQ Approx Operating Temperature Range e Discharge 15 to 50 C 5 to 122 F e Charge O to 40 C 32 to 104 F e Storage 15 to 40 C 5 to 104 F Recommended Maximum Charging Current Limit e 3 6A Self Discharge e The battery can be stored for more than 6 months at 25 C Self discharge ratio less than 3 per month at 25 C Please charge batteries before using 10 2 2 Charger for Lead Acid Battery 12V Dimensions e Height 3 65cm 1 4 e Width 6 7cm 2 6 e Length 10 7cm 4 2 Weight e 250g 0 55lb Input Voltage e 90 264VAC Maximum Output Power e 35W Temperature Range e 10 to 40 C 10 2 3 Power Supply 12V Dimensions e Height 3 6cm 1 4 e Width 3 8cm 1 5 e Length 9 1cm 3 6
8. The same housing incorporates the 12 V supply socket for use if the MTS 32 is to be battery powered The fan is a 12 V low speed long life unit using minimal current from the battery At 12 V the fan throughput is about 1 L per second which is enough to change the air over the sampling ends of the sorbent tubes more than 10 times per minute The general arrangement is shown in Figure 1 Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 4 Insect barrier Heater gauze optional Ambient air in Exhaust air Fan 12 V battery Main air flow 1 L s gt 10 changes min Secondary air flow approx 1 change min Figure 1 Cross section of MTS 32 indicating air flow 2 2 Principles of sorbent tube sample collection using the MTS 32 Figure 2 shows a section through the manifold block which holds up to 32 tubes The rotating pump connector plate is driven round the base of the manifold block in a clockwise direction until it is positioned in line with the tube to be sampled Air is then drawn through that tube for the selected time period before the rotating pump connector plate moves on to the next tube position The diffusive limiters on the sampling end of each of the tubes tube play a critical role both before and after the sample collection period Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries ma
9. flow sample pumps Contact Markes International before selecting or using an alternative pump for use with the MTS 32 A special cable may be required As standard pumps are only expected to run for 8 10 hours on internal batteries a continuous charge facililty has been provided To cover the wide range of pumps on the market the charge current can be varied over the range 40 to 300 mA for battery voltages from 2 8 to 12 V The required current is set by a variable resistor the circuit is shown in Figure 10 Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com Fan QUI 1013 Page 13 Start Stop Reset 12 V 12 V Brake 10 Ah On off trip Microswitch 1 0 5 A i Microswitch 3 S1 NC j OV External Microswitch 2 End 12 V Stop optional Timer 1 W Cam operated switch microswitches On Off MOM Link FLEC pump supply Meter 0 300 mA a ACTI VOC and other pump supply External optional heater heater 6 W Figure 10 Electrical schematic The charging current is available on two outputs one for the FLEC pump and one for alternative pumps The choice of charge current must be determined from the pump manufacturer s data In general choose a value equal to the overnight charge rate from the mains powered charger supplied with the pump This is usually close to the running current and will not damage the pump battery if left connected for reasonabl
10. 32 an external battery adaptor lead is required MTS 5013 Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 8 4 Connecting the sampling pump The MTS 32 is designed to operate with an ACTI VOC C LFP 01 or FLEC air sampling pump These are constant flow pumps that will deliver the same flow through tubes of different impedance Constant flow pumps from other manufacturers may be used and a general purpose pump socket is provided Figure 6 However Markes International should be consulted for advice regarding power and connection details before you connect the pump Control panel see Figure 9 12 V integrated battery if requested Socket for ACTI VOC or other pumps Socket for FLEC pump Tube manifold block Meter Figure 6 Plan view of MTS 32 inside box 4 1 Connecting the ACTI VOC Connect the power inlet of the ACTI VOC to the connection shown Figure 6 using the cable MTS 5019 Note When then the MTS 32 is switched on the level of current being supplied to the pump is shown on the gauge The variable resistor should be adjusted to show no more than 100 mA This can be done by turning the dial Figure 7 anti clockwise Figure 7 Variable resistor dial Connect the ACTI VOC pump air inlet to the s copper tubing shown in Figure 2 Place the pump on the right hand side of the box on top of the integrated battery
11. battery can be used for which a simple connecting lead is available MTS 5013 This would enable the MTS 32 to run for longer than 40 hours The MTS 32 is protected against reverse polarity connection by a diode inside the unit 3 2 Selecting the power option 3 2 1 Connecting the MTS 32 to a 120 V 230 V electricity supply If the MTS 32 is to be connected to a 120 V 230 V power supply the mains adaptor MTS 5011 must be connected to the right hand side military grade socket on the lid of the box Figure 5 This connection is directly above the fan and air outlet Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page External power supply connection external battery or 120 V 230 V adaptor Optional heater power supply connection Figure 5 Plan view of MTS 32 lid of box Ensure that the male jack plug connector leading from the fan outlet is connected to the left hand external power in socket on the MTS 32 control panel See Figure 9 Do not confuse this with the narrow solid jack plug that powers the fan 3 2 2 Powering the MTS 32 using the integrated 12 V battery option If the MTS 32 is to be used with the integrated battery option MTS 5009 ensure that the male jack plug from the battery is connected to the right hand socket labelled Battery Power in on the MTS 32 control panel 3 2 3 Connecting the MTS 32 to an ext
12. ccecsssseeeeeeesseeeeeesasseeeeeesees 8 4 2 Connecting the FLEC PUM ccccccessssseeeeeeeessseeeeessseeeeeesaes 9 9 SEHNE Me MET ssa 9 Sample tube insertion ssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn na 10 Ae ODOT AUION soopaa 10 7 1 Turning on the POWEL cccccccessseeececessseeeeeceaseeeeeeeasseeeseeaseeeeess 10 1 2 Summary of operation cceeesseeeeeeseeeeeeesseeeeeaseeseeeseeeneaseeseeaeees 10 7 3 Turning on the pump to begin the sampling sequence 11 7 3 1 Turning ON the ACTI VOC Qu iccccssssssssssseeecsseessssseeeesseeenseeess 11 fa PUPAE ON TS PEG ae cece saa csnecenseuenicdetncornecetancentemeseneeexts 11 1 4 Finishing sampling SEQUENCE ccesseeeeeeceessseeeeesesseeeeeeeeseeeeees 12 S Battery Gnas in S vesiscssscsscsscassvesnccscssswctsecsracswastwcetwseteanwwncwsswatersaswessuesines 12 8 1 Charger circuit for alternative constant flow sample pumps 12 9 User maintenance occ ceceec a cceevecenavecevaccussscsnseussusususesvensieusievasunensnesanacnas 13 10 Specifications saccccesicccttecet tes ecctacetacesenetccsiucstocstessteccteccecdetacceevasauassanetoee 14 e WANS OZ oesehcecieteide stare E 14 10 2 ACCES ONGS nanses ia E TREES 14 10 2 1 Sealed Lead Acid Battery 12V ssscccscsseecesseeeseeneeeeenes 14 10 2 2 Charger for Lead Acid Battery 12V sccccsssseeeeseeeeees 15 10 2 3 Power Supply L2V ccccccccsseecsesseeseesseesenseessess
13. cking insert Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 6 Diffusion locking inserts Sorbent beds Figure 4 Schematic of a SafeLok tube illustrating the diffusion locking inserts 3 Connecting the MTS 32 to a power supply The MTS 32 can be powered either by an integrated 12 V battery e g MTS 5009 or by 120 V 230 V electricity using a 12 V adaptor MTS 5011 This power drives both the sampling pump and the rotating pump connector plate 3 1 General battery requirements The MTS 32 can be run from any 12 V lead acid battery of sufficient capacity The mean current for operating the unit is less than 0 1 A with a similar current required to drive the pump charger With a total load of 0 2 A the 10 Ah battery available from Markes International will drive the unit both MTS 32 and ACTI VOC pump for 40 hours or more This battery is fitted with standard low voltage connectors which ensure connection with the correct polarity Since the battery is sealed it MUST be charged from a high quality constant voltage charger A suitable charger is available from Markes International MTS 5010 Because this charger is in effect a voltage controlled power unit it can also be used directly to drive the MTS 32 from mains electricity for indoor or test purposes The charger is NOT suitable for outside use If desired a higher capacity 12 V car
14. e periods with the pump switched off The output specifically designed to run the FLEC pump which runs from a 12 V supply does not have a means of varying the current The other output has a variable control to provide the specific current recommended by the manufacturer of the pump selected 9 User maintenance The only user changeable items are the size 010 Viton O ring seals under the O ring retaining plate See Figure 2 To access the O rings carry out the following 1 Remove all sorbent tubes 2 Remove screw on top of central rotor and remove the stainless steel pointer 3 Undo the four screws on the O ring retaining plate on top of the tube manifold block 4 Lift up the plate to give access to the O rings It is then possible to remove and replace the O rings before refitting the retaining plate and stainless steel pointer Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com 10 Specifications 10 1 MTS 32 Dimensions e Height 17cm 6 7 e Width 30cm 11 8 e Depth 25cm 9 8 Weight e 7 kg 15 4lb without pump and battery Power Requirements e Mains 120 230 V 12 V adaptor supplied e Battery Lead acid 12 V 10 Ah Sampling Flow e Depends on pump used Sorbent tube Compatibility e 32 x industry standard tube 34 x 1 4 o d Environmental e Operating Temperature 10 C to 55 C e Storage Temperature 25 C to 65
15. ernal 12 V battery If the MTS 32 is to be connected to an external 12 V battery the external battery adaptor lead MTS 5013 must be connected to the right hand side military grade socket on the lid of the box Figure 5 This connection is directly above the fan and air outlet Ensure that the male jack plug connector leading from the fan outlet is connected to the left hand external power in socket on the MTS 32 control panel See Figure 9 Do not confuse this with the narrow solid jack plug that powers the fan 3 3 Powering the optional internal heaters To prevent internal condensation under foggy or 100 humidity conditions a heater is suspended from the underside of the air inlet and another is bolted to the main chassis If required these must be run from an independent 12 V power supply connected to the left hand military grade socket on top of the MTS 32 lid See Figure 5 The heater supplies 12 W which will raise the temperature of the inlet air by about 10 C This also enables the unit to run at ambient temperatures below 5 C Note Power for these heaters is supplied via a separate pair of shrouded sockets on the unit top over the tubes As this heater takes 1 A from the 12 V battery it has been kept completely separate from the rest of the MTS 32 circuitry and will require a separate power supply A car battery of more than 25 Ah capacity will drive the heaters for 24 hours To connect the external battery to the MTS
16. esseenseeseenes 15 Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 3 1 Introduction There are many monitoring situations where it is necessary to obtain site data over periods of 24 hours or even longer Continuous on site monitoring requires a complete analytical system at each monitoring location However using an automated collection system based on thermal desorption tubes allows samples to be collected sequentially onto a series of sorbent tubes with no dead or lost time Each tube can be used to sample the air for periods of minutes to hours The MTS 32 allows sequential sampling onto a series of up to 32 industry standard sized sorbent tubes It is a self contained unit powered either using an integrated rechargeable 12 V battery or normal 120 V 230 V supply using an appropriate 12 V adaptor Caution Although the MTS 32 is contained within a shower proof box it should be protected from extreme weather conditions if outdoor sampling is to be carried out The unit should preferably be located above ground level 2 Principles of operation 2 1 Principles of MTS 32 ventilation The sampling system is housed in a tough low emitting polymer box with a polycarbonate sealed lid Air is drawn over the sampling end of the sorbent tubes by means of a fan and air intake duct The air inlet and outlet ports are fitted with a fine wire gauze to keep out insects
17. he sampling period required 7 3 1 Turning on the ACTI VOC Switch on the pump using a pointed instrument such as a ballpoint pen to switch the ON OFF switch to the right of the pump s LCD display see ACTI VOC user manual Set the appropriate flow rate on the ACTI VOC Typical sampling rates are in the range 20 100 mL min Once the ACTI VOC mode is switched to run pumped air sample collection will begin through whichever tube is in the sampling position as indicated by the stainless steel pointer Press the green Start button to start the MTS 32 timer and ensure that the timer starts to blink approximately once per second Progress of the cycle is indicated by the bar graph on the timer LCD display see Figure 8 Note It is recommended that the pump flow rate is checked using a packed sample tube before connecting to the MTS 32 7 3 2 Turning on the FLEC Switch on the pump by pressing the button marked with an indented circle to the left of the pump LCD display see FLEC pump user manual Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 12 Set the appropriate flow rate and sample time on the FLEC pump Typical sampling rates are in the range 20 100 mL min Note that the sample time should be long enough to cover the entire sequence of tubes i e not just one time period Note The FLEC pump includes delay and no of cycles
18. rkes com www markes com QUI 1013 Page 5 Pumped tube Non pumped tube Sample flow m DiffLok cap seals tube 0 O Ring retaining vi Copber plate s tubing to pump Pointer Rotating pump Diffusion locking connector plate inserts seal tubes except during the period of pumped sampling Doo Ni L Toothed pulley drives rotating pump connector plate in clockwise direction L 32 Position tube manifold block O Ring seal Figure 2 Sample flow schematic Any sorbent tubes not being pumped could potentially take up analytes by diffusion or lose retained analytes by outgassing To prevent this sorbent tubes are protected using either DiffLok caps Figure 3 or SafeLok tubes with integrated diffusion locking inserts at each end Figure 4 Diffusion locking inserts are also fitted into every tube connector position in the tube manifold block Figure 2 Diffusion locking technology prevents both diffusive ingress of contaminants and loss of retained sample in every tube that is idle in the manifold block both before and after sampling Sample tube pushes into cap Silcosteel or here stainless steel outer body shown transparent O Ring for sealing tube into cap Long narrow helical flow path created by pushing threaded diffusion locking insert Silcosteel or stainless steel into plain cylindrical body Figure 3 Illustration of a DiffLok cap showing the diffusion lo
19. set button on the control panel to ensure that the timer is in Standby mode The LCD display should read off and the display should not blink External power in Battery power in Fan Timer module see Figure 8 On Off switch Stop reset Start Manual override switch S4 Figure 9 Control panel schematic Push the manual switch away from the front of the box This will cause the rotor to move to the final position 32 and then stop 7 2 Summary of operation At switch on or after pressing the Reset button the timer is in the reset state and nothing happens At the beginning of the intended run move the Manual override toggle switch S4 Figure 9 forwards to bring tube 1 into the sampling position The sampling position is indicated by the steel pointer on the rotor Shaft Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com QUI 1013 Page 11 Operating the green Start button will cause the time to start counting down This is shown by a flashing signal on the timer LCD If a sample tube is in position 1 and the pump is connected air will then be drawn into tube 1 for the allotted sampling time After the preset time the motor drives the rotating pump connector plate under the tubes until the pump connector is located under tube position 2 This process is repeated in sequence up to tube position 32 If at any time the red left hand
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