Operations Manual
Contents
1. power class Illb laser and should only be opened by trained personnel as authorized by Biotest Diagnostics Corporation Send the complete instrument to an authorized Biotest service center for repair or calibration Failure to follow the manufacturer s recommendations may damage the APC Plus and will void the warranty Note The computer in the APC Plus is always on to keep the clock calendar current This draws a small amount of power from the battery If the APC Plus is not used for long periods of time the unit should be placed in the off mode It is also recommended to leave the unit with the battery charger plugged in If this is not possible the unit must be charged overnight at least once per month Failure to do so will result in permanent damage to the battery APC APC Plus Operations Manual Version 04 11 Observed Problem Possible Solutions The unit will not turn on even with the battery charger connected The unit was placed in the off mode and the wait time has not expired Leave the unit untouched for 5 10 minutes and try again Please see Section 3 1 6 2 The battery may need to be replaced If the unit has not been recharged for several months the battery may be deeply discharged and will not be able to be recharged Try recharging the unit overnight If successful test the battery by running in the AUTO mode with a count time of 1 minute and a hold time of 15 seconds The unit shoul2. AUTO mode and the counter has not yet been started the display will show the current value of the hold time If the unit is counting the display will show the programmed hold time But if the unit is waiting between samples only in the AUTO mode the display will show the hold timer ticking If you know the hold time then you will know when the unit will start Please note that if the hold time is 5 seconds or less the pump does not turn off during the hold period This is 4 APC APC Plus Operations Manual Version 04 11 a consideration during portable operation since the battery will discharge more rapidly However if the hold time is more than 5 seconds the pump will start 2 seconds before the end of the hold time is reached to allow both the pump and the laser to stabilize Press the MODE button again to display the battery status This shows the approximate percentage of the battery charge that is left For example a fully charged instrument with a fresh battery should run for about 5 hours count time 1 minute hold time 15 seconds If the battery status reads about 50 then the instrument should run for slightly more than 2 hours If your expected sampling time is close to this value you should probably recharge the battery before starting your data acquisition Note that the run time i e the battery capacity will decrease as the battery ages 3 1 6 ON OFF Button The ON OFF button is used to turn the instrument on and
3. battery A 6 volt 200 milliamp battery charger specifically designed for use with lead acid batteries is provided The battery charger has an input voltage of either 120 or 220 volts with a power dissipation of 5 5 VA When the battery is fully charged the battery charger reaches a floating point and the charging process terminates itself automatically The symbol near the battery charger input signifies a direct current DC input Note The APC Plus and APC are sensitive instruments They should not be used ina manner that is inconsistent with their intended use This includes using the proper battery charger plugging the charger into the intended power receptacle and connection to a computer or printer It also includes using the counter only in a non explosive environment and not using the counter in environments other than atmospheric pressure air 1 Introduction Note The APC Plus and APC instruments are nearly identical in their operation This manual covers the operation of these two instruments APC Plus will be used to refer to the common operation of both instruments Where the operation of the APC instrument differs from that of the APC Plus a separate section will indicate the difference Therefore unless otherwise noted the names APC Plus and APC are interchangeable The APC Plus particle counter is a simple yet sophisticated data collection and storage instrument The quickest way to learn the basics of operation is to r
4. in section 6 2 2 Set the desired concentration mode on the counter To print all of the stored information hold down the UP ARROW button while pressing START STOP The printout is in tabular form beginning with the last sample location and descending to location 1 The printout contains location temperature degrees Celsius relative humidity and all four counts by particle size two counts for the APC BIOTEST DIAGNOSTICS CORPORATION APC Plus 00 00 00 CT 00 01 00 LOC TRH 0 3um 0 5um 1 0um 5 0um 3 11 27 23338 16436 2986 23 2 11 27 23409 16393 3110 22 1 11 27 23463 16746 3294 28 13 APC APC Plus Operations Manual Version 04 11 6 2 4 Printing in Per Cubic Foot Mode The particle counter will print in per cubic foot mode when the FT button has been depressed such that the FT3 symbol is visible on the LCD display When the particle counts download to the printer in per cubic foot mode an asterisk will be printed between the RH and the 0 3 micron count on the printout You can switch between the cumulative and FT mode at any time When printing all stored information holding UP ARROW and pressing START STOP the particle counter will print in the mode that was last selected BIOTEST DIAGNOSTICS CORPORATION APC Plus 00 00 00 CT 00 01 00 LOC TRH 0O 3um 0 5um 1 0um 5 0um 3 11 27 233380 164360 29860 230 2 11 27 234090 163930 31100 220 1 11 27 234630 167460 32940 280 6 2 5 Printing in Per Liter Mode The particle cou
5. with the particle counter click on Setup in the main window If you know for certain which serial port that the particle counter is connected to select that port and exclude all other ports Otherwise select Auto and do not exclude any ports Then click on the OK button The program should then establish communications If the APC APC Plus message box is displayed informing you that no communications were established click the OK button to try again If this still fails turn off the particle counter and turn it back on If this fails quit the program and start it again If it still fails check that you have the cable properly connected to the serial port and plugged into the particle counter Turn off the counter and then turn it back on When the program establishes communications with the counter the display will switch to the main window All current data from the counter will be displayed To set the clock calendar on the particle counter simply click on the Set Clock button in the main window This will set the time and date on the counter to match that of the computer Make sure the clock on the computer is properly set APC APC Plus Operations Manual Version 04 11 The main use of this program is intended to be to download data from the particle counter s memory to the computer To accomplish this click on the Download button in the main window This will open the download data window Click on Download Go on the menu to
6. APC Plus Airborne Particle Counter amp APC Airborne Particle Counter Operations Manual Biotest Diagnostics Corporation 66 Ford Road Denville NJ 07834 USA Tel 973 625 1300 e 800 522 0090 e Fax 973 625 9454 www BiotestUSA com APC APC Plus Operations Manual Version 04 11 TABLE OF CONTENTS Ree THT 1 Ted fer sssassiacssencsssiichen IEEE SE E SES PERS FEDE SE BEES SEE SEES SENE SEES ERE EDER JERES SSF RE RERE SETS GE SEE SEERE 1 1 Introduction 2 cx ssutsnceanteucksccedonuacatses venantasaaautisatioc aucecteenusosuawicnssuxsxsunusduususmocnuchaens 1 2 APG Plus Description wicicicisincnscentuscacenersnanendusuedscevenananeudaaucduasvasduarduavauanddawivananeudeaeaons 2 3 Operation TT 2 3 1 Keypad Functions us nee tee ee ETa 2 SALT T le SIZ Casares catlentent ents mr ha dees iti isles Se ts tt sted tes DEES 3 SAL ARC PUSS vate at uate at ei atleast eee ie 3 eee AR Crea tans rece a ene een Ea 3 3 1 2 COUMUMEG OCS 2222 area tee eree eee rene eee 3 E r TR Tae eTo 3 3 1 4 Counts or Concentration Display Modes sss esse 3 Sto MOE BUKH e aT 4 3 1 6 On Off BUON ite tc oats fats a at ete nt ati nt tt dnd esha Gab bree 5 3 1 6 1 Low Power Mode sss esse 5 31102 Of ole 5 3 2 General Counting Procedure 6 3 2 1 Operating the APC Plus in Pressurized Environments e seeeeees 6 3 3 Using the Remote Sampling Probe and Tubing sse 6 eE Seting ODUOMS T 6 3 4 1 Setting the Sample Time Clock Date and
7. Also note that the year 2000 is a leap year This is built into the clock calendar of the particle counter APC Plus Download Software The software utilities provided with the particle counter convert the date to a year 2000 compatible date string The algorithm used to determine the year string is that if the year is less than 97 it is assumed that the data has been acquired after 1999 and 2000 is added to the year Thus a year of 01 would be converted to 2001 If the year is greater than 96 the date is assumed to be before the year 2000 and 1900 is added to the year Thus 98 becomes 1998 In the downloaded data file the year will be 4 characters long As a result any program using this data will be provided with a year string in the range of 1997 to 2096 22
8. Declaration of Conformity Application of Council Directive s 89 336 EEC 93 68 EEC Standard s to which conformity is declared EN61010 1 93 EN50082 1 92 Manufacturer s Name Biotest Diagnostics Corporation Manufacturer s Address 66 Ford Road Suite 220 Denville NJ 07834 USA Importer s Name Importer s Address Type of Equipment Airborne Particle Counter Model Number APC Plus Serial Number Year of Manufacture the undersigned hereby declare that the equipment specified above conforms to the above Directives and Standards Place Denville NJ Dlan A E Signature Date September 28 1998 David R Miers Full Name Research amp Development Manager Position 66 Ford Road Suite 220 Telephone 800 522 0090 Administrative Fax 973 625 5882 Denville New Jersey 07834 USA Telephone 973 625 1300 Customer Service Fax 973 625 9454 www BiotestUSA com 21 Version 04 11 APC APC Plus Operations Manual Version 04 11 APPENDIX E Year 2000 Compliance APC Plus Instrument The APC Plus has an internal clock calendar that is used to place a time and date stamp on each data sample The year value for the date is a value in the range of 0 to 99 and as such is not year 2000 compliant However this is simply a time date stamp no decisions are made based on the date In changing from December 31 1999 to January 1 2000 the year will go from 99 to 00 and the instrument will continue to function normally
9. Hold Time 2 7 3 5 Viewing Stored Sample Data 7 So sample Tl TTT 7 Dione Ta e e ala 8 3 5 3 Erasing the Particle Counts cccccacacncacnnionma cna cee cecte ne 8 3 6 Temperature and Humidity Sensors eee eee eee 8 4 Service Information css 9 AA RIOW Rate TTT 9 Ah FB RUSTY acess easy Lat cao OSE TE SKER Sad Duk Od et ON Dak OSES PORE LD Sukh Pt OL Ld Ned E SOREN ER ENEDES 9 4 2 1 Optional Power SUD DIY sr SE ee e a an ae 10 4 3 Cleaning the Particle Counter esse creer destinations 10 5 Windows M SOTMWale T 10 ST stallati M ander lee ri eE E EEE OEE Ea EEE EE EE aE 10 5 2 Computer Interface ics 4ancsdis Rd s 11 5 3 Running APC WIN eX 5 co oce saccharin en een kaakaa 11 APC APC Plus Operations Manual Version 04 11 TABLE OF CONTENTS 6 Lel 12 6 1 Purge Filter n S 12 6 2 Serial Dot Matrix Printer sees 12 6 2 1 Prnter Set UP ates oa ie En ned rn ner nerne boats tt andelene EEN 12 6 2 2 Printing in Rea l TIM s 2252 aa 2929292292 nt nidra 13 6 23 Printing Stored Data sco cued esl cubist e e eN Es 13 6 2 4 Printing in Per Cubic Foot Mode sss sese 14 6 2 5 Printing in Per Liter Mode sss sss 14 6 3 Bench TOD Stand arere eetere vast eran cnet E eA E EE ea Kaea Eade 14 6 4 Remote Sample Probe and TUuDIng sse 14 T Troubleshooting Guides s isir inini desaise iunie ieaie ioiai reune iaaii iaeiaiai 15 APPENDIX A Specifications sssi ae raaa aa Sa aaa aa aair aie YRZ ierant 18 APPENDIX B Product Warranty s
10. X C Quick Reference Guide Select mode SNGL single acquires one sample then stops AUTO auto acquires one sample then holds for selected hold time This sequence repeats until 200 samples are collected TO BEGIN COUNTING then the unit will stop Note Before you take more samples you must download the data or it will be overwritten CONT continuous count until STOP is selected TO RECALL COUNT Press d until desired location is reached TO RETURN TO LOC 1 Press h see Note in section 3 5 2 TO ERASE MEMORY AND RETURN TO LOC 1 Press d and START STOP simultaneously Press MODE and START STOP simultaneously then select f for increasing and for decreasing TO SET COUNT TIME Select MODE once more to change the next parameter To conclude press MODE until there are no blinking digits TO CHANGE THE CLOCK Follow the same procedure as the count time TO CHANGE THE DATE Follow the same procedure as the count time TO CHANGE THE HOLD TIME Follow the same procedure as the count time TO PRINT STORE DATA Press Th and START STOP simultaneously TO PRINT DATA IN Press the FT button on the particle counter until CONCENTRATION MODE the desired mode is reached USING THE DOWNLOAD OR APC PROGRAM IN CONCENTRATION MODE Type DOWNLOAD ft3 or DOWNLOAD 2 ft3 or Press the FT button on the APC Plus 20 d Biotest Diagnostics Corporation USA Biotest APPENDIX D European
11. can fluctuate greatly and even appear to decrease at the beginning of the sample time The count will stabilize further into the sample period Note The particle counter must perform a calculation to convert the particle counts to concentration The calculation for concentration in counts per cubic foot is exact However the concentration calculation for particles per liter uses an approximation that has a maximum error of 0 06 in the final value This is because of the nature of the integer calculations used inside the microcontroller in the APC Plus Note To calculate particles per cubic meter you must first perform your counts in counts per liter Next multiply the resulting concentration by 1000 to get particles per cubic meter 3 1 5 Mode Button The MODE button is used to review the count time time date and hold time and battery status To display the count time press the MODE button The display will change from the count or concentration to the current count time If the unit is currently sampling you will see the time incrementing Otherwise you will see the count time of the displayed sample or of the displayed memory location if sampling has ended If the MODE button is pressed again the current time is displayed indicated by AM or PM on the right side of the LCD Pressing the MODE button again will display the date in MM DD YY format One more press of the MODE button will display the hold time If the APC Plus is in the
12. count in number of particles or as a concentration in particles per cubic foot or particles per liter To display particles per cubic foot press the FT key When in this mode the FT3 icon will appear on the upper right corner of the LCD display To display particles per liter press the FT key again The LITER icon will appear in the upper right hand corner to indicate that the instrument is displaying counts in the particles per liter mode To return to the number of particles counted press the IFT button again Nothing will appear on the screen indicating that your counts are in total particles APC APC Plus Operations Manual Version 04 11 Note Although the particle concentration information is correct displaying the data in the concentration mode may cause erratic readings at the beginning of the sample period because of statistical variations due to short sample times To calculate particles per cubic foot the particle count is divided by the volume of air sampled For Example If two 5 0 micron particles are detected after 15 seconds of sampling the instantaneous count in 5 0 micron particles cubic foot is 2 0 25 min 0 1 cfm 80 five micron particles cubic foot If another 5 seconds of sample time passes with no additional particles detected the instantaneous count in particles per cubic foot changes to 2 0 33 min 0 1 cfm 60 five micron particles cubic foot Hence the count in particles per cubic foot
13. d run approximately 4 hours If not successful the battery needs to be replaced If there are unfamiliar or no characters on the display Turn the unit off and then back on Check for flashing characters on the display during operation which indicates insufficient battery output Connect the battery charger to the APC Plus to maintain normal operation see section 4 2 If no characters appear on the display after the instrument is connected to the battery charger for at least 15 minutes If dashes appear on the LCD Unplug the unit from the battery charger for at least twelve hours Then reconnect the battery charger wait five minutes and attempt to restart the instrument That particular memory location has no valid data You may be sampling in a concentration mode see section 3 1 4 If the particle count is erratic There is a possible obstruction in the flow path or contamination of the system Use the purge filter assembly to attempt to clear the path as described in Section 6 1 The battery may require charging see section 4 2 16 APC APC Plus Operations Manual Version 04 11 Observed Problem Possible Solutions If there are no communications between the computer and the APC Plus Exit communication program and turn off the APC Plus Turn the APC Plus back on and restart the program Check the RS 232 interface cable connections Make s
14. e repair or replacement of any product THIS WARRANTY IS STATED IN LIEU OF ALL OTHER WARRANTIES EXPRESSED STATUTORY OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND OF ALL OTHER OBLIGATIONS OR LIABILITIES ON SELLER S PART AND IT NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR SELLER ANY OTHER LIABILITIES IN CONNECTION WITH THE SALE OF THE SAID ARTICLES This Warranty shall not apply to any product which shall have not been maintained in accordance with any handling or operating instructions supplied by Seller or which shall have been subjected to unusual physical or electrical stress misuse abuse negligence or accidents Parts of any product consumed or subject to replacement from normal wear and tear or usage including but not limited to the filter are not subject to this Warranty This Warranty is given to Buyer only and may not be assigned to any third party without the prior written consent of Seller SELLER SHALL NOT UNDER ANY CIRCUMSTANCES BE LIABLE TO BUYER FOR INCIDENTAL OR CONSE QUENTIAL DAMAGES FOR LOSS OF USE OR OTHER COMMERCIAL LOSS OF WHATEVER NATURE ARISING OUT CONNECTED WITH OR RESULTING FROM THE SALE BY SELLER OF ANY PRODUCT ORDERED HEREUNDER INCLUDING WITHOUT LIMITATION ANY LIABILITY OF BUYER TOA CUSTOMER TO WHOM BUYER SOLD A PRODUCT OR EQUIPMENT CONTAINING A PRODUCT SOLD HEREUNDER APC APC Plus Operations Manual Version 04 11 APPENDI
15. efore accurate readings can be obtained This is especially true for large changes in temperature and relative humidity 8 APC APC Plus Operations Manual Version 04 11 The above should also be considered when using the remote sampling probe if there is a significant temperature differential between the sampling location and the actual location of the APC The temperature displayed will be somewhere between the temperature at the sampling location and that of the APC Plus location 4 Service Information Note There are no user serviceable components in the APC PLUS Tamper proof screws are used to secure the cover to the sensor case Send the complete instrument to an authorized Biotest service center for repair and calibration Failure to follow the manufacturer s recommendations may result in damage to the APC PLUS and will void the warranty Note The particle counter contains a high power laser in the lens tube that can cause blindness if optics are opened and mishandled The optics should only be serviced by authorized and trained personnel Note The APC Plus is calibrated at the factory using isotropic polystyrene spheres according to the procedures outlined in ASTM F 328 and ASTM F 649 It is recommended that the instrument be returned to the factory annually for calibration 4 1 Flow Rate The APC Plus operates at a sampling flow rate of 0 1 cubic foot per minute Maintaining the power to the pump at a fixed level controls t
16. ent is manually stopped without completing the full sample time The actual sample time will be stored and can be reviewed along with the particle count data for each location To view data stored in memory the particle counter must not be in the counting mode To review counts already stored in memory press the DOWN ARROW button After each press of the DOWN ARROW button the message Loc XXX will flash on the screen where XXX is the memory location 1 to 200 currently being displayed If the DOWN ARROW key is held down the memory location will decrement rapidly To return to the last currently occupied memory location press the UP ARROW key to go to memory location 1 and then press the DOWN ARROW button to return to the last memory location After calling up a specific location you can view the particle size counts by depressing the appropriate particle size buttons 0 3 0 5 1 0 or 5 0 for the APC Plus 0 5 or 5 0 for the APC You can view this information in either concentration mode by pressing the FT button until the indicator on the LCD changes to the preferred mode see section 3 1 4 to set the mode To view the actual count time depress the MODE button until the CT symbol appears in the bottom right of the LCD display showing the actual sample time 3 5 3 Erasing the Particle Counts After completing the current data run and printing or downloading the data simultaneously depress the DOWN ARROW and START STOP button t
17. enter the programming mode This allows you to easily set the clock calendar Note The data stored in the 200 data locations in memory is not affected during the Off mode When the unit is turned back on the data will again be accessible and additional data will be added to the next unused memory location unless the last sample location that was written to was location 200 where the data will then be overwritten as usual APC APC Plus Operations Manual Version 04 11 Note The off mode is for storage If the unit is turned to the off mode it cannot be turned back on for a few minutes If you put the unit into this mode you must wait for a few minutes before you press the ON OFF button If you press the ON OFF button too soon the time that you must wait starts over again 3 2 General Counting Procedure To begin counting press the ON OFF button to power up the unit The LCD display should light up If the LCD display will not turn on it s likely your unit needs recharging The LCD display will display the latest stored data prior to the last power off Select the appropriate operating options on the keypad including the particle size the display mode total particles particles per cubic foot or particles per liter and the sampling mode single automatic or continuous Update the count time date and time as necessary using the MODE and START STOP key see section 3 4 1 Remove the isokinetic probe the 3 long by 2 diamet
18. epending on the duty cycle of sampling The sealed lead acid battery has an output voltage of 6 volts at 1 3 amp hours The battery is recharged with the supplied charger The central processing electronics module regulates the sensor pump and battery The electronics also process the signals from the sensor module and processes and stores the data The electronics also simultaneously maintains communication when connected to an IBM compatible personal computer 3 Operation Note Always turn off the power on off key to the APC Plus Airborne Particle Counter before connecting or disconnecting any cables Note Do not use the APC Plus for sampling air under pressure Note The unit itself must NOT on any account be autoclaved but may be disinfected by wiping down with alcohol or commercial disinfectants 3 1 Keypad Functions Functions are selected through the keypad on the APC Plus front panel The LCD display indicates whether a function is currently enabled The following sections describe each of the separate functions The key labels are indicated in bold face type APC APC Plus Operations Manual Version 04 11 3 1 1 Particle Size 3 1 1 1 APC Plus 0 3 0 5 1 0 and 5 0 The APC Plus detects particles larger than four diameter thresholds greater than 0 3 0 5 1 0 and 5 0 microns The information is gathered for all particle thresholds simultaneously Any one channel can be displayed on the LCD at any time When the APC Plus
19. er black tube from the carrying case and screw it into the top receptacle on your APC Plus Be careful not to over tighten To begin counting press the START STOP button 3 2 1 Operating the APC Plus in Pressurized Environments The APC Plus may be used in pressurized cleanrooms provided the air inlet and outlet are at the same pressure Basically this means keeping the inlet of the isokinetic probe in the same environment as the rest of the APC Plus Placing the inlet at a different pressure than the outlet will affect the airflow through the counter and alter the calibration An example of incorrect use might involve measuring the particle counts in a laminar flow hood that was modified with access ports If only the isokinetic probe was placed into the access port and if the hood was operating at positive pressure the airflow through the particle counter would be altered However if the entire particle counter was placed in the hood the inlet and outlet pressures would be equal and there would be no error introduced 3 3 Using the Remote Sampling Probe and Tubing Remove the remote sampling probe from its package and screw it into the top receptacle of the APC Plus being careful not to over tighten Attach one end of the remote sample tubing to the open end of the remote sampling probe Insert the isokinetic probe into the other end of the remote sampling tubing Place this end of remote sample tubing at the sampling site To begin countin
20. eview the general counting procedure section of this manual Section 3 2 while operating some of the keypad functions However we recommend you review the entire manual to familiarize yourself with all the capabilities of the APC Plus APC APC Plus Operations Manual Version 04 11 2 APC Plus Description The APC Plus precisely measures the quantity of airborne particles with sizes above a set of four fixed particle sizes It also simultaneously provides temperature relative humidity sample time and date data The instrument is composed of four modules the sensor pump battery and electronics The sensor module contains the optical components and temperature and relative humidity sensor Within the particle sensor light emitted from a laser diode is transmitted and shaped by a series of lenses to a particle sensing zone The beam is then absorbed in a light trap When a particle enters the sensing zone it scatters light from the beam The light that is scattered is then collected by a second set of lenses and focused onto a solid state photo detector The amplitude of the electrical signal produced by the photo detector is dependent on the size of the particle in the sensing zone The pump module draws air through the isokinetic probe past the temperature and humidity sensor and into the particle sensing zone at 0 1 cubic feet per minute The battery module supports operation of the APC Plus for up to eight hours without a recharge d
21. g press the START STOP button Note Maximum recommended length of remote sample tubing is 5 feet 3 4 Setting Options Various operating parameters can be set on the APC Plus using the MODE key These include the count time the clock time and date and the hold time APC APC Plus Operations Manual Version 04 11 3 4 1 Setting the Sample Time Clock Date and Hold Time To change the sample time for the SNGL and AUTO collection modes depress the MODE and START STOP keys simultaneously The Count Time CT indicator will appear in the lower right corner of the LCD while the sample hour starts blinking Press the DOWN ARROW button to decrease or the UP ARROW button to increase the hours up to a maximum of seven At seven if the UP ARROW key is pressed again the hours will roll over to zero At zero if the DOWN ARROW key is pressed the hours will roll under to seven After selecting the count hours press the MODE button again and the count minutes will start blinking Repeat the above procedure to change the minutes of the counting period Press the MODE button again to change the seconds Set the count seconds following the same procedure Note that the rollover value for minutes and seconds is 59 Note If you press and hold either the UP ARROW or DOWN ARROW key its function will be repeated rapidly After setting the count time press the MODE button again This causes the clock hour display to start blinking The clock time ca
22. he flow rate The flow rate is not user adjustable 4 2 Battery The APC Plus is equipped with a 6 volt sealed lead acid battery which supplies power to the vacuum pump laser and all of the electronics A battery charger is supplied that is designed specifically for this battery The normal recharge time for the battery is up to 5 hours depending on how deeply discharged the battery is An overnight recharge is recommended when possible When the battery is discharged to the point that it cannot produce the necessary voltage for normal operation of the APC Plus a low battery indicator will blink on the LCD the display will show lo bat on the main digits The counter cannot be used to take samples in this situation In this case plug in the battery charger and let the battery charge for 5 or 10 minutes before trying to use the instrument This will restore proper operation to the instrument if it is used with the charger plugged in If the battery was deeply discharged it may require a longer charging time to restore instrument function If the battery charger is left plugged into the instrument then the APC Plus can be used to acquire a few samples The battery should be completely recharged before a large number of samples are attempted Also if the unit is to be operated continuously in the AUTO mode then the optional power supply must be used please see section 4 2 1 If the charger is not attached the instrument will eventual
23. ional power supply that will run the particle counter indefinitely 4 3 Cleaning the Particle Counter The particle counter may be cleaned by using isopropyl alcohol or most commercial disinfectants Gently wipe the exterior with a moistened wipe Under no circumstances should liquids be poured into or onto the APC Plus or should the unit be submerged in any liquid Do not autoclave the particle counter Any of these procedures will cause extensive damage to the unit and will require factory servicing 5 Windows Software APCWIN exe runs on Windows 95 or greater It allows you to display the counts temperature humidity and clock calendar data on the computer screen It also allows you to download the data from the particle counter memory This data may then be saved to a file or copied to the Windows clipboard where it may then be pasted into any other application that uses the clipboard A help system is included to answer potential questions The software requires Windows 95 or greater 10 megabytes of hard disk space and an SVGA monitor 5 1 Installation The software is supplied on 1 CD Rom To install the program insert the CD into your CD Rom drive Click on My Computer and select the icon representing this CD Select the Setup exe icon and then proceed through the installation APC APC Plus Operations Manual Version 04 11 5 2 Computer Interface An RS 232 cable is required to link the APC Plus to a pers
24. is turned on press any one of these four buttons to control the particle size displayed on the LCD The current particle range is displayed on the top center of the LCD readout 3 1 1 2 APC The APC instrument detects particles larger than two thresholds 0 5 and 5 0 microns The description of 3 1 1 1 applies with this exception 3 1 2 Counting Mode SNGL AUTO and CONT In SNGL single mode the instrument will sample for the preselected counting time then stop In AUTO automatic mode the instrument will sample for the pre selected counting time hold for the preprogrammed hold period in standby mode then repeat this sequence continually This standby sample time sequence will be repeated automatically until data is stored at the 200th memory location or until pressing the START STOP key to stop the unit In CONT continuous mode the instrument will sample continuously until START STOP is pressed To select the mode simply press the appropriate key The currently selected mode is displayed in the bottom left corner of the LCD 3 1 3 START STOP START STOP When the unit is on press the START STOP button to begin or end a counting sequence While the instrument is sampling COUNTING will be displayed under the particle counts However when the sampler is counting COUNTING will be displayed at the bottom of the screen 3 1 4 Counts or Concentration Display Modes IFT Particle counts can be displayed either as an actual
25. ly turn itself off It will not turn back on until the charger is connected and a sufficient charge is restored to the battery 9 APC APC Plus Operations Manual Version 04 11 Note It is recommended to keep the particle counter plugged into the battery charger and the charger plugged in whenever the APC Plus is not in use Note If the unit is on or in the Low Power Mode section 3 1 6 1 the circuitry inside of the APC Plus draws a small amount of power from the battery to keep the clock calendar up to date If the particle counter is to be stored for extended periods the battery may become deeply discharged The battery will be ruined if the battery is not charged periodically It is recommended to charge the unit overnight once a month to avoid damaging the battery If possible leave the unit plugged into the battery charger to keep the battery charged If the unit will not be used for more than a few days use the Off mode refer to section 3 1 6 2 for a description of the Off mode 4 2 1 Optional Power Supply To operate the unit continuously in the AUTO mode for an extended period of time the standard battery charger cannot supply enough power The battery alone will power the unit for up to 8 hours depending on the duty cycle of usage Plugging in the standard charger will extend the operating time to approximately two days if the battery is in good condition and initially fully charged To run the unit longer Biotest offers an opt
26. m six digit LCD display Total particles particles per cubic foot or particles per liter Temperature Sensor 10 C to 50 C 2 C Relative Humidity Sensor 20 to 95 RH 10 Actual count time date sample time or hold time Single automatic or continuous One second up to eight hours Two seconds up to 24 hours Automatic storage of 200 samples Serial RS 232C Baud rate of 9600 6 volt sealed lead acid battery with charger Temperature 10 to 40 C 50 to 104 F Humidity 0 to 90 noncondensing Temperature 40 C to 70 C 40 F to 158 F Humidity 0 to 60 7 7 x 3 8 x 2 6 inches 2 5 pounds APC APC Plus Operations Manual Version 04 11 APPENDIX B Product Warranty Biotest hereinafter Seller warrants that the manufactured products delivered under this order will be free from defects in material and workmanship under normal use and service for a period of one 1 year from date of shipment of the product to Buyer s plant Sellers sole obligations under this Warranty are to replace repair or give credit for at Seller s option at its factory any of said products which shall within one 1 year after shipment be returned to Sellers factory of origin transportation charges prepaid clearly marked with Return Material Authorization RMA number obtained from Seller and which are after inspection discovered to Sellers satisfaction to be defective The original warranty is extended as a result of th
27. n be set in the same manner as the count time Note that the time is in the 12 hour format and that PM represents time from 12 00 to 24 00 After setting the clock press the MODE button once again This will cause the date to appear with the month figure flashing The date can be changed in the same manner as the sample time and the clock Press the MODE button again The display will now show the hold time indicated by the appearance of the HT icon in the lower right corner of the LCD The hours digits will then blink Set the hold time the same way that the other times and date were set The maximum hold time is 23 59 59 one second less than 24 hours After setting the seconds of the hold time press the MODE button to return to the standard LCD display mode 3 5 Viewing Stored Sample Data 3 5 1 Sample Time The elapsed time of a sample can be viewed either during or after completing a sample To view the sample time for the most recent sample or the one currently being collected press the MODE button repeatedly until the CT symbol appears in the bottom right corner of the LCD display The actual sample time will appear on the display even if the count was not taken for the full sample period APC APC Plus Operations Manual Version 04 11 3 5 2 Particle Counts The APC Plus has the capacity to store 200 samples in memory The count information is automatically stored after each sample Data storage will also take place if the instrum
28. nter will print in per liter mode when the FT button has been depressed such that the LITER appears on the LCD display When the information downloads to the printer in per liter mode a percent sign will be printed between the RH and the 0 3 micron count on the printout You can switch between the cumulative per cubic foot and per liter modes at any time When downloading all stored information holding UP ARROW and pressing START STOP the particle counter will download in the mode that was last selected BIOTEST DIAGNOSTICS CORPORATION APC Plus 00 00 00 CT 00 01 00 LOC TRH 0O 3um 0 5um 1 0um 5 0um 3 1127 8241 5803 1054 8 2 1127 8266 5788 1098 7 1 1127 8285 5913 1163 8 6 3 Bench Top Stand A custom bench top stand is available for hands free operation The stand provides a means of positioning and securing the APC Plus on horizontal surfaces so that operators can easily see the display 6 4 Remote Sample Probe and Tubing For your convenience remote sample probe and tubing permit remote sampling with the APC Plus Please see section 3 3 for details 14 APC APC Plus Operations Manual Version 04 11 7 Troubleshooting Guide Note Always turn off the power on off key to the low power mode to the APC Plus before connecting or disconnecting any cables Note There are no user serviceable components in the APC Plus Tamper proof screws are used to secure the cover to the sensor case The instrument contains a high
29. o clear the memory locations This will erase all of the data in memory and the instrument will then store the next count in Location 1 The unit cannot delete individual samples Note Be careful not to depress the DOWN ARROW and START STOP buttons simultaneously until you are done reviewing the data Pressing the DOWN ARROW and START STOP buttons simultaneously clears all the memory locations in the APC Plus and resets the counter to Loc 1 for storage of the next data set 3 6 Temperature and Humidity Sensors The APC Plus contains an integrated circuit IC that measures both temperature and relative humidity The IC is embedded inside the instrument As a result the temperature represented in C and relative humidity indicated by RH displayed on the LCD does not depict instantaneous responses to changes in temperature and relative humidity An important part of the temperature measurement system is the isokinetic probe The probe transfers heat to or from the temperature sensor With the isokinetic probe installed and air flowing through the particle counter in either the AUTO mode or the CONT mode the readings will stabilize in about 10 minutes for both temperature and relative humidity The response time will be significantly longer if there is no airflow Therefore for optimum response from the temperature and relative humidity sensor the isokinetic probe should be firmly attached and the unit should be run for at least 10 minutes b
30. off There are two modes of off the low power mode and the off mode These modes can be used to protect the battery and conserve charge during storage 3 1 6 1 Low Power Mode In the low power mode the microcontroller in the unit is turned on so that it maintains the current date and time It draws a small amount of power from the battery For a fully charged battery with the instrument in the power down mode the battery will last about 1 5 months After this time the battery must be recharged To enter the low power mode simply press the ON OFF button when the unit is on The unit will continue to track the time and date If the unit is stored the battery charge will be monitored When the battery reaches a certain value 5 7 volts the unit will be turned to the off mode to protect the battery To turn the unit back on simply press the ON OFF button 3 1 6 2 Off Mode The off mode essentially disconnects the battery from the counter This mode should be used for long term storage In this mode the power is disconnected from the microcontroller and all functions cease In order to enter this mode press and hold down the ON OFF button for about 6 seconds The display will flash Off until the button is released At this point the unit will completely turn off Note Wait one minute to turn unit back on To turn the unit back on simply press the ON OFF button The unit will turn back on and automatically
31. onal computer This cable is included with the APC Plus No additional hardware is required to connect the particle counter directly to an IBM compatible personal computer To connect the APC Plus to the computer turn off the APC Plus power Attach the male end of the cable to the APC Plus Attach the other end of the interface cable connector directly to an IBM compatible personal computer through any standard RS 232 serial port that is configured as COM 1 through COM 9 For computers with 25 pin connectors use a cable or adapter of the null modem type You will need a cable or adapter with DB 25 female and DB 9 male connectors 5 3 Running APCWIN exe Connect the APC Plus to the computer with the serial cable and turn the particle counter on Click on the Start button then Programs and then the APC Win program group or the group that you selected if you renamed the folder during the installation procedure Then click on APCWin with the Biotest logo icon to start the program The first time the program is run it will automatically search all valid serial ports in the range of COM 1 through COM 9 for the particle counter If it is unable to communicate with the particle counter it will display a message asking you if you want to quit or try again If you click OK the program will try each port again If you click Cancel the program will stop trying and display the main window If the program is still not communicating
32. s off and restart it in the total particles mode and the lowest site channel The reading should remain low less than 10 in a one minute sample If the unit registers considerably higher readings charge the battery If the unit still fails check the seal of the O ring If it fails once again it may be time to have the unit serviced The purge filter assembly may also be used to clean the system when moving from a less clean area i e class 100 000 to a cleaner area i e class 1 000 By running the APC Plus for about five minutes with the purge filter assembly installed any loose particles which might have diffused into the optical system due to use in a dirty environment will be cleaned If particles are still registering continue to purge the particle counter 6 2 Serial Dot Matrix Printer 6 2 1 Printer Set Up The serial thermal printer uses the RS 232 interface cable that is supplied with the APC Plus The serial interface is compatible with several types of serial printers Biotest supplies a very convenient thermal printer that works well for portable use of the APC Plus APC APC Plus Operations Manual Version 04 11 To connect the printer to the APC Plus first turn the APC Plus off Connect the RS 232 cable to the counter and the serial printer The 9 pin connector plugs into the printer adapter and the other end plugs into the APC Plus The printer requires the adapter that is attached to the DB 9 connector on the printer Biote
33. ssssssesssssssseeeeeeeesssssseeeeeeeeeessseee neeesser eenn 19 APPENDIX C Quick Reference Guide eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneees 20 APPENDIX D European Declaration of Conformity cccccceesseeeeseeeeeeeeeeeeneees 21 APPENDIX E Year 2000 Compliance eeeceeeeeeeeeeeeeeeeeeeeeeeeeeseeeeseeneeeeeeeeeeeeeeneees 22 Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Lotus and 1 2 3 are registered trademarks of Lotus Development Corporation APC APC Plus Operations Manual Version 04 11 SAFETY PRECAUTIONS Laser Optics The APC Plus and APC Airborne Particle Counters comply with FDA Laser Performance Standard 21 CFR 1040 10 and 1040 11 These instruments contain a class Illb laser diode with a rated power output of 30 milliwatts at a wavelength in the range of 650 to 690 nanometers The laser diode is in a closed assembly inside the sensor case Warning labels cover all parts that may allow exposure to class IIIb laser radiation if disassembled Note There are no user serviceable components in the APC Plus or APC Tamper proof screws are used to secure the cover to the sensor case Should the particle counter need service please send the complete instrument to an authorized Biotest service center for repair Electrical The APC Plus and APC contain a 6 volt sealed lead acid
34. st sells the printer with this adapter installed When all connections are made turn the printer on and then the APC Plus The APC Plus will then print out a header 6 2 2 Printing in Real Time To print each sample after it is acquired connect the RS 232 cable to the printer and the particle counter This connection should be made while both the APC Plus and the printer are turned off Switch on the power to both units being sure to turn on the printer first The printer will respond by printing a header which contains the date the count time and sampling parameters Begin sampling Each time the particle counter pauses or stops a printout of the data will automatically occur showing the time temperature relative humidity degrees Celsius and counts by particle size Note All particle count data is always printed out in the same concentration mode that the particle counter is in For example if you need the particle concentrations in particles per cubic foot you must get the concentration mode to this prior to sampling When the count is finished the data will be printed BIOTEST DIAGNOSTICS CORPORATION APC Plus 00 00 00 CT 00 01 00 Time TRH 0 3um 0 5um 1 0um 5 0um 1 41 11 27 23463 16746 3294 28 1 42 11 27 23409 16393 3110 22 1 43 11 27 23338 16436 2986 23 6 2 3 Printing Stored Data To print all of the data that is stored in the counter s memory connect the RS 232 cable from the particle counter to the thermal printer as
35. start a download The program will indicate the status of the download in the status bar at the bottom of the window When the download is completed the data may be saved to a file by clicking on File Save and then selecting a filename The data is saved in the comma separated values format The default delimiter is a comma To change this see the help system in the program The data may also be copied to the clipboard where it may be pasted into any other Windows program that uses the clipboard Simply click on Edit Copy on the menu and the data will be copied to the clipboard Note This window will not close if the data is not saved If you try to close the download window without saving the data you will be warned You may then save the data and close the window or you may indicate that you do not want to save the data 6 Accessories 6 1 Purge Filter Assembly The purge filter assembly allows you to check the background readings of the APC Plus to determine if the system has a leak or if the optics need to be cleaned To attach the purge filter assembly unscrew the isokinetic probe and screw the filter connector into the threaded insert at the top of the APC Plus Be sure the purge filter seats firmly against the O ring To test the background reading of the system turn on the APC Plus with the purge filter assembly in place Allow the unit to run for five minutes to clear any loose particles from the system Turn the APC Plu
36. ure the APC Plus is turned on If there are no Check the RS 232 interface cable connections communications between printer and APC Plus If the printer prints unrecognizable output Make sure both APC Plus and printer are turned on The communications parameters for the printer are not properly set See section 6 2 1 to correct If Lo bAt flashes on the LCD If the APC Plus automatically turns off and will not turn on The battery has reached 5 5 volts and needs recharging When this occurs the memory can be recalled but the instrument will not count unless connected to the charger see section 4 2 The battery has reached 4 5 volts The instrument will not turn on until connected to the charger When this occurs the date time mode and sample count time will need to be reset To reset see section 3 4 1 17 APC APC Plus Operations Manual Version 04 11 APPENDIX A Specifications Illumination Source Particle Size Ranges Flow Rate serene Calibration 2 Display sene Data Display ce Sampling Mode cc Count Time cer Hold Time es Storage Environment Dimensions eee Weight See aged 30 mW laser diode at approximately 670 nm 0 3 0 5 1 0 5 0 microns APC Plus 0 5 5 0 microns APC 0 1 cubic foot per minute 10 NIST traceable with polystyrene spheres as per ASTM F 328 or ASTM F 649 Custo
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