Manual - Keison Products
Contents
1. 3 Press and hold the PROG key to save the settings The light on the PROG key will turn off and the display will not flash now 5 3 3 1 Set the sample period To set the sample PERIOD to the desired length 1 Press and hold the SELECT key until the PER light is lit The 7 digit display shows the current period setting in HH MM SS format for example 00 00 060 5 3 4 Beep mode Operation 2 Press and hold the PROG key The light on the PROG key turns red and all the digits begin to flash 3 Press the UP and DOWN arrow keys to change the digits to the required value Note The period will not accept settings exceeding 10 seconds 4 Press and hold the PROG key to save the new settings and exit the programming function The digits will not flash now and the red light on the PROG key will turn off Note The HOLD time is not used in concentration mode To sample the MET ONE 237 particle counter for Concentration mode 1 Press RUN STOP to start the sampling The MET ONE 237 particle counter continuosly takes the sample in the Concentration mode until RUN STOP is pressed Beep mode is similar to the Concentration mode The sampling is continuous regardless of the Period and Hold settings and printing is disabled A single audible sound beeps once each time a count alarm limit is reached and then once more for every multiple of the count limit For example if the limit is set at 1 000 particles the beep will sound at 1 000 2 0002. 3 000 and so on There is only one size channel displayed at a time anda beep will sound when any particle size range limit is reached Set the limit for only one size range of interest and set the remaining size ranges to zero Note The beep mode limits and count alarm limits are the same To change the Beep mode limits 1 Press and hold the SELECT key until the CNT light is lit The 3 digit display will show the particle size channel and the 7 digit display will show the count for that size 2 Press and hold the PROG key The light on the PROG key turns red and the 7 digit display shows the current alarm limit and the left digit begins to flash Press and hold the SELECT key until the required digit begins to flash Use the UP and DOWN arrow keys to change the digit to the required value Press and hold the PROG key to save the new settings and exit the programming function The digits will not flash now and the red light on the PROG key will turn off To sample in the Beep mode 1 Press RUN STOP to start sampling The MET ONE 237 particle counter takes the sample until RUN STOP is pressed 5 4 Program the relative humidity and temperature probe RH T The optional environmental probe may be plugged in to the keyed RH TEMP connector on the back of the panel refer to Figure 6 on page 12 The MET ONE 237 particle counter will display the relative humidity as a percentage and display the temperature in degrees Celsius or Fahrenhei
3. Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 1245 600560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specifications are subject to change without notice The user is responsible for determining the suitability of this product
4. function The digits will not flash now and the red light on the PROG key will turn off Note Programming the HI and LO Relative Humidity alarm limits is similar 5 4 1 Environmental alarms When a programmed environmental alarm limit is exceeded an audible alarm will sound and the LIMIT light will light red Press and hold any of the front panel keys to turn off the audible alarm If the alarm occurs when the RH or TEMP reading is not being displayed the appropriate TEMP or RH light will flash 24 Section 6 Maintenance DANGER Only qualified personnel should conduct the tasks described in this section of the manual DANGER Electrocution hazard Always disconnect the power to the instrument before making any electrical connections WARNING Harmful radiation exposure Do not use the controls or adjustments or performance of procedures other than those specified CAUTION Electrostatic discharge ESD can damage or destroy electronic components All work inside the particle counter should be done at a static safe workstation 6 1 Maintenance guidelines A static safe workstation can be created by doing the following e Use a grounded conductive table mat and resistor isolated wrist strap combination e Earth ground all test instruments to prevent a buildup of static discharge Important Note The laser diode in this device is extremely sensitive to static charges and out of tolerance voltage variations Important Not
5. 1 EN 500081 1 1992 Emissions EN 55011 1991 Class A Radiated EN 55011 1991 Class A Conducted EN 61326 1998 EN 50082 1 1997 Immunity EN 61000 4 2 Electrostatic Discharge EN 61000 4 3 Electromagnetic Field EN 61000 4 4 Electrical Fast Transient EN 61000 4 5 Surge Test Common and Differential mode EN 61000 4 6 3 Volt Modulated Interfering Signal EN 61000 4 8 Susceptible Magnetic Fields EN 61000 4 11 Voltage Interruption Test EN 61010 1 1993 Amendment 1 amp 2 Safety Requirement for Electrical Equipment for Measurement Control and Laboratory Use EN 60825 1 1993 Safety of Laser Products Equipment Classification Requirements and User s Guide Pacific Scientific Instruments Place and date of issue Name signature of authorized person 39 Certification 40 Le SIN IN se E f Wi G NN 14 y SN UN WH ION 7772 WHA NWN 779 NGS NITO Ni STR NON UG PN aKa SU ZA N PA Ki RN Ue Ku AN Wu ZA NEL AWS N V i 08 N Y E N W i Aight K SK ie SN YP NY DR y NY VW NW A p a CE sant ono ee sas KE ory NZ SEZ IN ag ZHAN SIN ZAAN VAAN ZA E NANNA SS SS e AQ Geh SN SSI PA GLP EEM KANN A EIN N SS N Warranty ES N E5 S Pacific Scientific Instruments Seller vvarrants that the Products vvill operate substantially in conformance with Seller s published specifications when subjected to normal proper and intended usage by properly trained personnel for a period of one 1 yea
6. 3 Turn the power switch off Press and hold the ONLINE button Turn the power switch on When the printer begins to print the default DIP switch settings release the ONLINE button The current settings will be printed and the printer will be in the DIP switch setting mode If the DIP switch settings match the settings in Table 5 on page 50 no changes are necessary Press the FEED button to exit the DIP SW setting mode If changes are necessary continue to step 5 Press the ONLINE button to begin programming the DIP SW 1 settings The printer will print Dip SW 1 and open the first switch position for setting Press the FEED button to set the first switch position to OFF The printer will print 1 OFF Input Serial and open the next switch position for programming 49 7 Press the ONLINE button to set the second switch position to ON The printer will print 2 ON Printing speed High and open the next switch position for programming 8 Continue programming the remaining positions using the ONLINE button to set ON conditions and the FEED button to set OFF conditions Table 5 DIP switch settings DS 080 y EEE DEE EN Dame KL EE 089 se TO EAS Cs VER UCI A E DS ze 7 DEE RS dk u O Z O O Z zZ ojo E oololololololo I ZIZI Z Z Il olojolojojo Slan EZE O When all the DIP SW 1 settings are complete the printer will prompt the user to select CON
7. a paper tension release lever that must always be in the Down position for proper operation See Figure 5 4 Place the paper roll in the paper tray Make sure that the paper roll is placed so that the paper feeds through the feed mechanism from the bottom of the paper roll See Figure 5 5 Insert the tip of the paper roll into the slot in the feed mechanism above the botom of the paper tray Press PAPER FEED The paper will be pulled through the printer 7 Close the paper tray cover Seiko printer Fujitsu printer Paper tension release lever Figure 5 Loading printer paper 11 Installation 3 2 4 Connect the AC adapter The AC adapter refer to Figure 3 on page 9 item 6 is used to charge the internal battery and use the MET ONE 237 particle counter with a standard 115 VAC outlet To connect the AC adapter 1 Turn off power to the MET ONE 237 particle counter 2 Attach the AC adapter to the power input jack refer to Figure 6 on page 12 at the back of the MET ONE 237 particle counter 3 2 5 Install the RH T probe To install the RH T probe 1 The RH T probe is connected to the back of the unit refer to Figure 6 on page 12 item 1 2 Attach the RH T probe to the inlet so that the open end faces the direction of the air stream Note Make sure that the RH T probe is attached before the counter is turned on 3 3 Rear panel connections The power switch fuse holders and all connectors are on the rear panel of the
8. covered under this warranty proves defective during this period Hach Ultra will at its option either repair the defective part without charge for extra parts and labor or provide an equivalent replacement in exchange for the defective product If any diode covered under this warranty proves defective during this period Hach Ultra will at its option either repair the defective diode without charge for parts and labor or provide an equivalent replacement in exchange for the defective product To obtain service under this warranty the customer must notify the nearest Hach Ultra service support center on or before the expiration of the warranty period and follow their instructions for return of the defective instrument The customer is responsible for all costs associated with packaging and transporting the defective unit to the service support center and must prepay all shipping charges Hach Ultra will pay for return shipping if the shipment is to a location within the same country as the service support center This warranty shall not apply to any defect failure or damage caused by improper use or maintenance or by inadequate maintenance or care This warranty shall not apply to damage resulting from attempts by personnel other than Hach Ultra representatives or factory authorized and trained personnel to install repair or service the instrument to damage resulting from improper use or connection to incompatible equipment or to instrumen
9. how to return end of life equipment producer supplied electrical accessories and all auxiliary items for proper disposal This symbol when noted on a product enclosure or barrier indicates that a risk of electrical shock and or electrocution exists This symbol if noted on the product indicates the need for protective eye wear This symbol when noted on the product identifies the location of a fuse or current limiting device This symbol indicates a laser device is used in the equipment This symbol when noted on the product indicated the presence of devices sensitive to Electro static Discharge PP 10 ESD and indicated that care must be taken to prevent damage with the equipment General Information 2 1 3 A Laser safety information This particle counter contains a laser based sensor that is a Class 1 product as defined by 21 CFR Subchapter J of the Health and Safety Act of 1968 when used under normal operation and maintenance The manual contains no procedures for service of internal parts within this unit Service should be performed only by factory authorized personnel The particle counter has been evaluated and tested in accordance with EN 61010 1 1993 Safety Requirements For Electrical Equipment For Measurement Control and Laboratory Use and IEC 825 1 1993 Safety of Laser Products 2 1 4 bs Electrostatic discharge ESD considerations Important Note To minimize hazards and ESD risks mai
10. the current display mode e LED display 3 digit display shows parameter and 7 digit display shows value e Control keys Used to operate the counter Table 1 provides a description about indicators and key features or functions SE COUNT CI LIMIT TC SENSOR DI LO BATT CI Se si MANUAL AUTO CONCEN BEEP LASER PARTICLE COUNTER EX Met One I T Figure 7 Front panel of the MET ONE 237 particle counter 1 Status indicators 4 Control keys 2 Display mode indicators 5 Mode keys 3 LED display Table 1 Indicators and key features or functions me eeen O O Initiates a 6 second count cycle based on factory default settings The red light in the RUN STOP Bases i l STOP RUN portion lights and the pump starts operating 15 Operation Table 1 Indicators and key features or functions continued mm emm o O DIFF DIFF Helps to operate the different settings of the counter Helps to select the different settings of the counter This is used to set the date and time SELECT SELECT enable the printer change the sample period set the alarm limits set the number of sampling cycles and so on O Helps to program the different settings of the counter This is used to program the date PROG and time enable the printer change the sample period set the alarm limits set the number of sampling cycles and so on This is an a
11. 2 2 General product information The MET ONE 237 particle counter is a battery operated laser based particle counter that is used in a walk around sampling routine The counter can store up to 500 records for each sample with a different location label on the record The data records may later be printed or downloaded to a computer for analysis The MET ONE 237 particle counter is used in environments where the particulate contamination does not exceed two million particles per cubic foot of air such as clean rooms medical instrument assembly computer rooms The Concentration mode in the MET ONE 227 particle counter is used to take a brief sample and estimate the probable cleanliness for areas with unknown particulate levels This is based on built in calculations performed in the microprocessor of the counter Long term use in uncontrolled environments such as open air office spaces or outdoor air will require frequent user maintenance The MET ONE 237 particle counter operates at a flow rate of 0 1 cubic feet per minute cfm The flow rate is required to set the sampling parameters It takes 10 minutes to sample one cubic foot of air while the results of a one minute sample is multiplied by ten to obtain counts per cubic foot All counts are reported as cumulative counts that is all the reported 0 3 um particles are 0 3 um and larger in size General Information 2 3 Theory of operation The MET ONE 237AJB particle counter is a compact full
12. 701076 MET ONE 237AB Particle Detector USER MANUAL June 2008 Edition 5 EXCELLENCE IN PROCESS ANALYTICS 701076 MET ONE 237AB Particle Detector USER MANUAL June 2008 Edition 5 Hach Ultra Analytics Inc 2008 All rights reserved Printed in the U S A Table of Contents Section SPECITICALIONS EE 3 section 2 General Information vivian dd 5 21 Date SION OW EE 5 2 1 1 US amp 91 nazard Inlormallon sera ais 5 21 2 Precautionary A le 5 Ze lud Laser Sale MOM a 6 2 1 4 Electrostatic discharge ESD considerations i aaa nenen kene eee ene eee eke eper 6 22150 Battery salet INONMA iON ne Nee 6 2 2 General product INTOMMAU ON Aue u 7 2 9 TNEOrN OL Opera ri iaa 8 SECLON 3 1NStallallon ina A O AA AS 9 3 1 WMD ACK Ne INSHUM Ne e 9 392 Mechanical Installation 10 32 1 Install MS ISOKINGHG PODES daros 10 32 2 Instal Me purge Me tua ala 11 9 219 Load printer PAP rin A A AA AS 11 3 24 Connect ins AC ad Eet E 12 3 220 IhStallthe RFUT probe ii 12 3 3 near DANES EE ee 12 SECLI0N 4 System Start Up uc e iaa 13 2 1 OWES UD E 13 Section ODETA O EE 15 A n 15 A A A OR AES A 16 Da ONM GIMOQ S een ee ee de eres 16 E Manual MOS sed 16 S LAVOM MOG Eee ea eier Tee 19 9 93 CONcCentalon NO bat gen ves e e 21 JaA le Ru Tee 23 5 4 Program the relative humidity and temperature probe HI 23 SAT ENVIO A Mental E EE 24 Section 6 Maintenance 22 ee 25 8 1 Maintenance el e GE le EE 25 6 2 T
13. TINUE by pressing the ONLINE button or WRITE by pressing the FEED button If DIP SW 2 and DIP SW 3 settings are correct select WRITE to exit the programming routine and save the settings The DIP SW 2 settings are correct but DIP SW 3 settings need to be changed DIP SW 2 settings are programmed first in order to access DIP SW 3 settings If the DIP SW 3 settings are modified the printer will automatically exit the DIP SW programming mode after the last position is set and print DIP SW setting complete Make sure that the printer is ONLINE when the programming is complete D 2 Counter setup for the printer Connect one end of the printer cable to the printer and the other end to the printer connector port at the back of the MET ONE 237 particle counter refer to Figure 6 on page 12 The baud rate in the MET ONE 237 particle counter is set to 9600 50 A ASCII ev le Lu Le EE 44 Automatic Mode aaa nana nana aaa nana n ee ake ann ann e ere see eee rene res 19 B Battery replacement EE 26 Battery safety information 6 BOED venian iria nora 23 q no ee ect ZE s eee 30 C GETIT CANON arab 39 Class NGPTOGU EE 6 connections adjustments cece e ne ene kene eee e ees 16 GONLTOL KEYS nennen 15 A GG Aue ehe ee 8 D dala analySis aussen 43 Display mode indicators nenn 15 E Electrostatic discharge ESD considerations 6 Environmental alarms 24 H High pressure diffuser aaa aaa ene kene eee 41 L La
14. anner other than that specified in this manual 2 1 1 Use of hazard information DANGER Indicates a potentially or imminently hazardous situation which if not avoided will result in death or serious injury WARNING Indicates a potentially or imminently hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation that can result in minor or moderate injury Important Note Indicates a situation which if not avoided can cause damage to the instrument Information that requires special emphasis Note Information that supplements points in the main text 2 1 2 Precautionary labels Read all labels and tags attached to the instrument Personal injury or damage to the instrument could occur if not observed A symbol if noted on the instrument will be included with a danger or caution statement in the manual This symbol if noted on the instrument references the instruction manual for operation and or safety information Electrical equipment marked with this symbol cannot be disposed of in European public disposal systems after 12 August of 2005 In conformity with European local and national regulations EU Directive 2002 96 EC European electrical equipment users must now return old or end of life equipment to the Producer for disposal at no charge to the user Note To return for recycling contact the equipment producer or supplier for instructions on
15. as unusual sound or vibration it may be removed for maintenance to restore it to optimum operation 7 3 1 Disassembly and cleaning of the pump Prerequisites e 1 27 mm or 1 5 mm Allen wrench To disassemble and clean the pump 1 Open the counter as described in section 6 2 on page 25 step 1 to step 3 2 Remove the pump from the chassis clip 3 Remove the pump electrical connection 4 Disconnect the tubing from the pump Note Make sure to note the attachments to the Vacuum V fitting and the Pressure P fitting 5 Usea 1 27 mm or 1 5 mm hex key Allen wrench to loosen the set screw on the bracket on top of the pump refer to Figure 12 6 Push the bracket to one side and remove it from the pump refer to Figure 13 on page 31 7 Remove the top of the pump Note the locator pin refer to Figure 14 on page 31 8 Remove pump body refer to Figure 15 on page 31 Remove the carbon vanes and make sure the rotor turns freely refer to Figure 16 on page 32 10 Perform steps 1 to 9 in the reverse order to assemble the pump Figure 12 Loosening of the set screw 1 Hex Allen key wrench Troubleshooting Procedures x 9 gt O Figure 13 Removal of the bracket 1 Bracket ges se Figure 14 Removal of top of the pump 1 Locator pin 2 Top of the pump NN N Figure 15 Removal of the pump body 1 Pump body Troubleshooting Procedures Figure 16 Removal of carbon vanes 1 Carbo
16. at all items listed in Figure 3 are included If any items are missing or damaged contact the manufacturer or sales representative Retain the original packaging materials Use the original packaging material to store or ship the instrument to protect against damage during storage or transportation Figure 3 List of packaged items 1 Isokinetic probes Wand style Catalog No 203015 3 4 MET ONE 237 particle counter Isokinetic probes Direct mount Catalog No 2080613 Thermal printer paper Catalog No 460519 Purge filter Catalog No 2080442 6 AC adapter 115 VAC Catalog No 770007 230VAC Catalog No 770012 100 VAC Catalog No 770009 Installation 3 2 Mechanical installation The MET ONE 237 particle counter is ready to use when unpacked Check for all the connections to the equipement 3 2 1 Install the isokinetic probe The isokinetic sample probes are used for accurate air sampling in particle counting applications The isokinetic probe refer to Figure 3 on page 9 item1 or item 2 is used in the laminar air flow for a flow rate of up to 100 feet per minute Isokinetic sample probes can be e Mounted directly on machines e Suspended from the ceiling e Mounted on the wall or through the wall Note Make sure the the isokinetic probes are attached before sampling To install the isokinetic probe 1 Remove the red sensor inlet cap from the MET ONE 237 particle counter Note The isokinetic probes are protec
17. complete the count results can be downloaded to a computer and analyzed to verify the condition of the room Refer to Appendix B on page 43 for download procedures and data string descriptions 5 3 3 Concentration mode The concentration mode in the MET ONE 237 particle counter is useful for taking a quick snapshot of airborne particulate contamination levels Note The Concentration mode is not a substitute for full sampling The concentration mode is appropriate for areas where the particulate levels are unknown and may exceed the operating limits of the counter The concentration counting mode does not store write the data records in the memory buffer The concentration mode gives a continuously updated approximation of the number of particles per cubic foot or per liter The approximation is based on a user selectable sample period of one to ten seconds In concentration mode the counter begins sampling and estimates the counts per cubic foot or per liter based on a programmable period of time The MET ONE 237 particle counter updates the calculation results on the display at 1 second intervals The programmable period sets the size of a moving calculation window which is moved each second to incorporate a new second of sample data and discard the oldest second of sample data in the window of calculations The MET ONE particle counter uses a 3 second period to calculate the concentration based on a 3 second window refer to Figur
18. count level alarms will be registered Channel 2 particle size 0 7 m in 227A 0 5 m in 227B Volume Liters applies to Concentration mode only Temperature C applies only if RH T probe is attached 16 Operation Table 2 Default parameter settings continued Baud rate 9600 Sample time 1 minute length of sample period Hold time 1 second hold time between samples in Automatic mode Program mode Unlocked allows user programming In the Manual counting mode the counter will take one sample of the programmed length default is 6 seconds and stop The CNT light will be lit in the display mode refer to Figure 7 on page 15 item 4 The particle sizes being monitored will be displayed in the 3 digit display and the actual cumulative counts will be displayed in the 7 digit display For example 00 5 0000000 Note The MET ONE 237 particle counter is programmed to monitor several sizes but only one size is displayed at a time To view the particle sizes being monitored 1 Press RUN STOP to initiate a single 6 second count cycle based on the factory default settings 2 The red light in the RUN portion of the key will turn on The pump begins operation and after a short delay the COUNT light will turn on 4 The COUNT light and the red light in the RUN portion of the key will turn off after the pump finishes the 6 second sample 5 Press the UP and DOWN arrow keys to view the different sizes The counter is progra
19. counter as shown in Figure 6 on page 12 Note The connectors for Analog Out and Printer appear only in models with the Analog Output option which do not have a built in printer FUSE BATTERY FUSE RH TEMP 250V 2AT 250V 2AT E Q O_O ANALOG OUT o hb O Sege O ON OFF POVVER ON PRINTER Gl IN SERIAL I O Figure 6 Rear panel connections A Switch 1 RHIT probe connector 2 Optional connectors 12 Section 4 4 1 Power up System Start Up Turn on the switch at the back of the MET ONE 237 particle counter refer to Figure 6 on page 12 The counter will display the main screen when turned on Figure 7 on page 15 If the LO BATT indicator is lit plug in the AC adaptor to charge the battery The counter may be operated during the charging of the battery Note Use the AC adapter provided by the manufacturer to charge the battery or operate the counter Other off the shelf power modules may have different power current or polarity which could damage the counter 13 System Start Up 14 Section 5 Operation The MET ONE 237 particle counter must be configured before operation for parameters such as sample time and count alarm thresholds 5 1 Front panel overview The front panel of MET ONE 237 refer to Figure 7 particle counter consists of e Status indicators Show the current state of the counter e Mode Key Indicator Shows the operating mode of the counter e Display mode indicators Show
20. de is programmed into the counter until a counter select command is received functions only when one counter is connected at a time Any counter select command 128 through 191 will disable the Universal Select command Enable this command again by turning off power to the unit and then turning it on A Send Record U Universal Select The counter will respond to all subsequent commands when a number is sent that matches the select code that is sending a number between 128 corresponding to 128 191 Counter Select LOC 0 and 191 corresponding to LOC 63 that does not equal the select code of the counter The counter is deselected or made unresponsive to computer commands by selecting another counter 44 B 1 1 2 Data record format Each counter can send a record of the data available The data record is a string of ASCII characters where the position in the string identifies the meaning of the character The length of the string changes with the amount of data points available from the counter Each data point is preceded by a 3 character tag that identifies the type of data that follows in the next six data characters Figure 24 shows an example of the serial communications format of a MET ONE 237B particle counter PELL PF 0952500006 pre Tell N 20 080193 0006 0 3001682 0 0 5 000634 5 0 000029 ITMP 000712 RIH 000397 LOC 000048 C S 001676 CRLF Figure 24 Serial communications format example 45 46 A
21. djustment key and it helps to navigate up in the choices available It helps 4 UP arrow scroll through the different sizes the counter is programmed to monitor and view the cumulative count in each size channel This is an adjustment key and it helps to navigate down in the choices available lt helps 1 DOWN arrow scroll through the different sizes the counter is programmed to monitor and view the cumulative count in each size channel MODE Helps navigate and select the different counting modes of the counter 5 2 Setup The MET ONE 237 particle counter is ready to use when unpacked but make sure that the red sensor inlet cap is removed and the isokinetic probe is attached prior to sampling refer to section 3 2 1 on page 10 If the RH T probe is used attach it before the counter is turned on 5 3 Counting modes The MET ONE 237 particle counter exhibits various counting modes Manual mode Automatic mode Concentration mode and Beep mode 5 3 1 Manual mode Note The factory default setting for the counting mode is the Manual mode 5 3 1 1 Factory default settings Table 2 lists the default parameters that are programmed at the factory The MET ONE 237 particle counter exhibits various counting modes The factory default setting for the counting mode will be the Manual mode Table 2 Default parameter settings Parameter Settins Count mode Manual the counter will take one sample and stop counting Alarm limits O no particle
22. e Never connect or disconnect the sensor cable from the counter when the counter is on 6 2 Clean the sensor To clean the sensor 1 Remove the six screws three screws on each side that hold the top cover on the counter refer to Figure 11 on page 26 2 Remove the two screws from the sides allowing the chassis tray to pivot for sensor access Disconnect the clear tubing from the sensor outlet fitting 4 Remove the four nylon screws holding the sensor to the chassis tray Disconnect the sensor cable from the sensor circuit board Make note of the position for later steps Remove the connector from the counter 6 Insert two 2 56 machine screws in the two threaded holes on the reflector Use these screws as a handle to remove the reflector with a pulling and twisting motion 7 Clean the reflector and photo detector with cotton swabs saturated with a small amount of reagent grade Acetone Wipe the optical surfaces with a dry swab after cleaning Blow the dust particles from the interior surfaces with clean dry air 8 Perform steps 1 to 8 in reverse order to assemble the unit 25 Maintenance Figure 11 Position of screws on the top cover of the counter 1 Position of three screws on one side Screws that hold top cover 6 2 1 Battery replacement WARNING An explosion can occur if the internal battery is replaced incorrectly To replace the rechargeable battery pack 1 2 Remove the top cover from the count
23. e 9 The counter calculates the concentration based on a 10 second window that moves every second refer to Figure 10 A 10 second period provides a good representation of actual concentration because it covers a longer period Note Longer periods also allow high particulate levels to contaminate the sensor Use a shorter period to calculate the Concentration for unknown environments 21 Operation DI a a oo o o o e Ra e zm zm e zm zs Ne mm em ooo oooo o SS SS zm XX Figure 9 Calculation using 3 second period 1 3 second period 3 Recalculation and display update ERREGER ER DE D Figure 10 Calculation using 10 second period 1 10 second period 3 Recalculation and display update To program the MET ONE 237 particle counter for Concentration mode 1 Press and hold the MODE key until CONCEN is lit 2 Press and hold the SELECT key until OPT is displayed 3 Press the UP or DOWN arrow until the 3 digit display shows VOL volume The 7 digit display will show either L liter 1000 L or CF cubic foot L is the default setting from the factory and the concentration estimates will be expressed as counts per liter To change the volume settings 1 Press and hold the PROG key so the light on the PROG key turns red and the volume units in the 7 digit display begins to flash 2 Press the UP or DOWN arrow till the required setting is displayed
24. e BEE 25 8 2 1 Battery TePIACCIME N asu a o A 26 8 3 Printer Malhlenanee ni EEN 26 0 3 1 Clean the print EE 26 6 9 2 COrECtION PN EE 26 0 3 9 Replace IN SHPIMET ToDo sia a 21 Section 7 Troubleshooting Procedures oooccccccccccnnonocononoccconononnnncnccononnnonononononononononnnoos 29 Fal Common proble EE 29 ZIE SET ee EE 29 7 8 PUMP WOUDICSMOOUMG nga ec dt 30 7 3 1 Disassembly and cleaning of the pump aaa aaa aaa na en nane ena k eee eke eee pe see rea e renie eee kene epe eee eee 30 oz PUMPOPUMIZA OM ee 32 Section 8 Replacement Parts and ACCESSONIES aaa aaa eee a eee eee ee eee eee eee eee eee 33 Bl ACOSO NS E 33 Section 9 Service Contact Information 35 Section 10 Limited Walras 37 Table of Contents Section 11 en e UL d Le e EE 39 Appendix A Optional Accessories eee eee zeze nene eee eee tete teen eee 41 A 1 Relative humidityl Temperature RH T probe aa aaa aaa aaa aaa nene ananas ek en air eee eee eren ee eee rene eren eee 41 A2 Tele Eat RE 41 A 41 AA NH e nn AS 42 A 9 POPS OM WAN E 42 AO Canying Be 42 Appendix B Computer Interface Operations e 43 Bi1 Datavahial SiS 1Or ISO T4644 EE 43 5 11 Eomputer ei ei ag e e de 43 Appendix GC PortAll Software E 47 EA GONNE CIONS ee ernennen 47 C Oer O aa ee es ee Reese 47 Appendix D DPU 414 Printer a ee ee 49 DL Printer SU nee 49 D 2 COUunler setup TOK the Pte A AG 50 Section1 Specifications Specifications are subject to change with
25. er Disconnect the battery cable 6 3 Printer maintenance 6 3 1 Clean the print head To clean the print head 1 Run the MET ONE 237 particle counter with a short sample period and enable the printer When the print head is in the middle of the plate turn off the power to the counter Take a piece of printer paper Fold the paper in half and soak the paper with Isopropyl alcohol Wedge the paper between the print head and the plate Move the paper to the left and right to clean the print head 6 3 2 Correct light print CAUTION Do not make the print dark as it can cause the print head to be damaged by overheating 26 Important Note Darken it just enough to make the print easily readable The printer PCBA Printed circuit board assembly is on the bottom of the chassis tray To correct the light print 1 Remove the two screws as shown in section 6 2 on page 25 step 2 This allows the chassis tray to tilt up for access to the PCBA Make a very small adjustment to the Varicap on the printer logic board Turn the Varicap by about 1 16 to the left to darken the print or to the right to lighten the print Maintenance 6 3 3 Replace the printer ribbon To replace the printer ribbon 1 Remove the two screws that hold the printer bar and remove the printer bar 2 Remove the four Va nuts that hold the print head assembly 3 Tilt the chassis tray up as in section 6 3 on page 26 step 1 Locate the print
26. er ribbon cable connector Note The connector must be unlocked by pulling the edges of the connector away from the PCBA before attempting to remove the cable from the connector 4 Carefully remove the cable from the connector 5 Replace the printer ribbon and follow steps 4 to 1 to assemble the printer ribbon 27 Maintenance 28 Section 7 Troubleshooting Procedures 7 1 Common problems Table 3 Trouble shooting procedures l Turn off the counter and attach the AC adapter charger to Indicates that the the power input jack at the bottom of the counter LO BATT battery requires recharging Place the counter on the stand or on any stable surface and charge for 10 12 hours When this alarm occurs 1 Purge the sensor by attaching the purge filter refer to Figure 3 on page 9 item 3 that is supplied with the counter The PN as of to the sensor inlet on top of the counter this condition is sensor contamination Place the counter on the stand and attach the AC Indicates that the adapter charger to the power connection at the bottom of internal particle sensor the counter is no longer operating Set the counter to Automatic mode and the number of within acceptable limits cycles to infinite inf and any count data taken during this alarm Press RUN and observe the particle count display If the condition should be count totals are high but descending allow the counter to disregarded as operate continuously for an extended period o
27. f the range of 0 31 e For ISO 14644 1 The PortAll software stores the ISO classification limits internally in a table as counts per cubic meter Normalize the data in the spreadsheet to counts per cubic meter in order to obtain accurate classifications e For FS209E The PortAll software stores the FS209E classification limits as counts per cubic foot Normalize the data in the spreadsheet to counts per cubic foot in order to obtain accurate classifications Clear the instrument memory before start of a sampling sequence to classify a clean room or clean area The PortAll software spreadsheet of the instrument memory will then contain only relevant samples to select for the classification calculations Note For complete PortAll software documentation refer to the PortAll CD Appendix D DPU 414 Printer The clean room classification standards FS 209E and ISO 14644 1 require specific particle count measurements and calculations to verify the cleanliness level of a clean room or clean area D 1 Printer setup The MET ONE 237 particle counter may be purchased without an internal printer and the Model DPU 414 printer is available as an optional accessory DIP switch settings for the DPU 414 printer are made in the internal firmware of the printer using the front panel buttons of the printer refer to Figure 26 enn 1 Power switch 3 ONLINE button 2 FEED button Figure 26 DPU 414 printer To setup the printer 1 2
28. f time until inaccurate the counts stabilize at or near zero If the Sensor Fail alarm persists or if the counts do not reach zero after an extended period of time clean the sensor refer to section 6 2 on page 25 Indicates that the particle counts have exceeded the Make sure that the alarm limits are set to an appropriate level programmed limits but for the environment being monitored does not indicate a failure in the counter 7 2 Reset the counter The counter is reset to correct any intermittent fault conditions in the microprocessor controller functions It is similar to restarting the computer and all the settings return to factory defaults clearing the Memory buffer If the particle counter does not function properly for example incorrect date and time clear the counter memory and restart the microprocessor To reset the counter 1 Turn off the Power to the counter 2 Press and hold the MODE key while turning on the power Release the MODE keys when the counter beeps once 3 The 3 digit display shows dEF and the 7 digit display shows 270 ic the number and revision level of EPROM 4 The display may show a different revision level depending on the EPROM Press the DOWN arrow key to restore normal operation and program the counter operating parameters as required 29 Troubleshooting Procedures 7 3 Pump troubleshooting If the vacuum pump does not operate or exhibits any questionable symptoms such
29. isplay shows the status of the printer 3 Press and hold the PROG key so the red light on the PROG key turns red and the printer status flashes Press UP or DOWN arrow key until the word All is displayed Press and hold the PROG key to save the settings The light in the key will turn off and the printer status will not flash now When a sample is complete the printer will print the results Other printer options are e Alr Prints only if an alarm condition exists e ALL buF Prints all the contents in the memory buffer e Alr buF Prints those records in the memory buffer in which an alarm condition was recorded e OFF No printing activity 5 3 1 4 Set the date and time The date and time are a part of each sample record stored in the memory and may be programmed as follows 1 Press and hold the SELECT key until the TIME light is lit and the 7 digit display shows the current time setting in the HH MM SS format for example 08 26 470 The Counting is visible in the seconds field 2 Press and hold the PROG key The light on the PROG key turns red and the HH digits flashes 3 Press and hold the SELECT key until the desired digits flash Use the UP and DOWN arrow keys to change the selected digits to the required value 4 Press and hold the PROG key to save the new settings and exit the programming function The digits will not flash now and the red light in the key will turn off 5 Press and hold the SELECT key until
30. it 2 Press the UP or DOWN arrow key until the 3 digit display shows Loc The 7 digit display will show a number Default number seen is 32 3 Press and hold the PROG key The light on the PROG key will turn red and the digits on the 7 digit display flashes 4 Press the DOWN arrow to change the location number to 1 Press and hold the PROG key The red light on the PROG key will turn off and the digits in the 7 digit display will not flash now 5 3 2 2 Set the number of cycles The number of cycles indicates the number of times the counter will repeat the sampling cycle determined by the programmed Period time and Hold time three cycles is typical for a routine verification check Programming a number of cycles greater than one automatically causes the MET ONE 23 particle counter to enter the Average mode An Average mode shows the average count cycles and generates a report for the printer and the memory buffer For example if the number of cycles is set to three the counter will take three samples of the programmed Period length with the hold period being of programmed Hold length The printer will print the results of each of the three sample periods when they are completed The fourth report indicating the average count in each size range over the three samples is printed next If the records are printed from the Memory Buffer at a later time the printout will be identical To set the number of cycles 1 Press and ho
31. ive europee locali e nazionali Direttiva UE 2002 96 EC gli utilizzatori europei di apparecchiature elettriche devono restituire al produttore le apparecchiature vecchie o a fine vita per lo smaltimento senza alcun costo a carico dell utilizzatore Nota Per conoscere le modalita di restituzione delle apparecchiature a fine vita da riciclare contattare il produttore o il fornitore dell apparecchiatura per un corretto smaltimento Documento importante Conservare con la documentazione del prodotto DANISH Elektriske apparater der er maerket med dette symbol ma ikke bortskaffes i europ iske offentlige affaldssystemer efter den 12 august 2005 henhold til europ iske lokale og nationale regler EU direktiv 2002 96 EF skal europ iske brugere af elektriske apparater nu returnere gamle eller udtjente apparater til producenten med henblik pa bortskaffelse uden omkostninger for brugeren Bemaerk forbindelse med returnering til genbrug skal du kontakte producenten eller leverand ren af apparatet for at fa instruktioner om hvordan udtjente apparater bortskaffes korrekt Vigtigt dokument Opbevares sammen med produktdokumenterne Form No 011229 Trademarks are property of their respective owners Specifications subject to change without notice Thank you for reading this data sheet For pricing or for further information please contact us at our UK Office using the details below SUR al UK Office Keison Products P O
32. ld the SELECT key until the OPT light is lit 2 Press the UP or DOWN arrow key until the 3 digit display shows CYC The 7 digit display will show a number on the right 3 Press and hold the PROG key The light on the PROG key will turn red and the digits in the 7 digit display will begins to flash 4 Press and hold the SELECT KEY till the required digits begin to flash Use the UP and DOWN arrow keys to change the selected digits to the required value 5 Press and hold the PROG key to save the new settings and exit the programming function The digits will not flash now and the red light in the PROG key will turn off 19 Operation 5 3 2 3 Set the sample period and hold time Note Set the HOLD time to a minimum of 10 seconds when the printer is enabled A sample record will be overlooked when calculating the average counts because of printer operation during the calculations All the samples will be stored in the Memory buffer and will print the average report if printed at a later period To set the sample period to 1 minute and hold time to 10 seconds in automatic mode 1 Press and hold the SELECT key until the PER light is lit and the 7 digit display shows the current period setting in HH MM SS format for example 00 00 060 2 Press and hold the PROG key The light on the PROG key turns red and the HH digits begin to flash 3 Press and hold the SELECT key until the required digits begin to flash Use the UP and DOWN ar
33. mmed to monitor and view the cumulative count in each size channel The MET ONE 237 particle counter operates at a sample flow rate of 0 1 cubic feet per minute cfm Multiply the results of a 1 minute sample by ten to estimate the actual particle count in a cubic foot of a sample Note Parameters such as Change the sample period refer to section 5 3 1 2 on page 17 and Enable the printer refer section 5 3 1 3 on page 18 are programmed in any order and at any time the counter is not running as long as the steps to set each parameter are followed 5 3 1 2 Change the sample period To change the sample period in the manual mode 1 Press and hold the SELECT key until the PER light is lit and the 7 digit display shows the current period setting in HH MM SS format for example 00 00 060 2 Press and hold the PROG key The light on the PROG key turns red The HH digits begin to flash 3 Press and hold the SELECT key until the desired digits flash Use the UP and DOWN arrow keys to change the selected digits to the desired value 4 Press and hold the PROG key to save the new settings and exit the programming function The digits will not flash now and the red light on the PROG key will turn off 17 Operation 5 3 1 3 Enable the printer To enable the printer in the manual mode 1 Press and hold the SELECT key until the OPT light is lit 2 Press the UP or DOWN arrow key until the 3 digit display shows Prn and the 7 digit d
34. n vane 7 3 2 Pump optimization To optimize the pump 1 Assemble the pump again Loosen the setscrew plug in top bracket and make the electrical connection to the MET ONE 237 particle counter 2 Turn on the power to the MET ONE 237 particle counter to initiate a count cycle and turn on the pump Hold the pump motor steady Rotate the entire pump head in a 180 arc refer to Figure 17 As the pump head is rotated listen for the point where the Rotations per minute RPM are the greatest 6 Keep the pump head steady and tighten the set screw Figure 17 Rotation of the pump head 32 Section 8 Replacement Parts and Accessories 8 1 Accessories Description Quantity Catalog Number Isokinetic probe Wand style Isokinetic probe Direct mount Purge filter AC adapter Thermal printer paper optional RH Temp probe optional High pressure diffuser optional RS485 converter optional Clean room printer paper optional PortAll software optional Carrying case optional 1 ze wesch 203015 3 2080613 2080442 770007 115 VAC 770012 230 VAC 770009 100 VAC 460519 2080825 1 2080372 6 2082383 2 460521 2084045 2080879 33 Replacement Parts and Accessories 34 36 Section 10 Limited Warranty Hach Ultra warrants this instrument to be free of defects in materials and workmanship for a period of one year from the shipping date If any instrument
35. ntenance procedures not requiring power to the analyzer should be performed with power removed Delicate internal electronic components can be damaged by static electricity resulting in degraded instrument performance or eventual failure The manufacturer recommends taking the following steps to prevent ESD damage to the instrument e Before touching any instrument electronic components such as printed circuit cards and the components on them discharge static electricity This can be accomplished by touching an earth grounded metal surface such as the chassis of an instrument or a metal conduit or pipe e To reduce static build up avoid excessive movement Transport static sensitive components in anti static containers or packaging e To discharge static electricity and keep it discharged wear a wrist strap connected by a wire to earth ground Handle all static sensitive components in a static safe area If possible use anti static floor pads and work bench pads 2 1 5 Battery safety information WARNING An explosion can occur if the internal battery is replaced incorrectly Figure 1 shows the label that appears on the battery for the safety of the user 4 VVARNING DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER DISPOSE OF BATTERIES ACCORDING TO MANUFACTURER S INSTRUCTIONS Figure 1 Battery safety label General Information
36. onous communications between up to 64 counters and a controlling computer A terminal program such as Windows HyperTerminal is used to perform the basic communication MET ONE 237 particle counter requires a special pin serial cable refer to Figure 22 Note The special pin serial cable is provided by the manufacturer Note A standard serial cable can be used with the PortAll adapter A standard serial cable may be used with the PortAll adapter as shown in Appendix B on page 47 Ce DCD RxD TxD DTR Sig Gnd DSR RTS CTS RI Figure 23 Serial interface pinout 43 B 1 1 1 Communication protocol The counter has the following fixed parity and protocol e Eight 8 data bits e One 1 stop bit e No parity Table 4 describes the ASCII commands that are supported by the MET ONE 237 particle counter Table 4 ASCII commands supported by the counter a Auto When the a command is used the counter is placed in the Auto mode When the b command is used the counter is placed in the Manual mode The counter will begin counting without waiting for an even second boundary c Start Counting computer controlled quick start Counting will continue until stopped by the computer The computer must control the count cycle d Start Counting counter controlled The counter will begin counting and control the count cycle based on the counter s setting for period e Stop Counting The counter will immediately st
37. op counting without waiting for an even second boundary C Clear Buffer The rotating buffer will be erased D Send Number of Records The counter will send the number of records in the rotating buffer E Send EPROM Revision The counter will send the EPROM number and revision level The counter will send the present mode If counting a C will be sent If holding a M Mode Request H will be sent If stopped an S will be sent T Identify Model The counter will send a 4 character model number for example 227A The next record in the rotating buffer will be sent When the rotating buffer is empty a will be sent Each record is erased from the buffer as it is sent If no count cycles have been completed since the counter was turned on then a will be sent The record cannot be sent until the current count cycle is complete l The last record sent will be sent again Records sent prior to the last record have R Resend Record been permanently erased WE The counter will enter a mode that turns off the air pump and shuts down the h Standby Mode sensor to conserve power and reduce equipment wear g Active Mode The counter will enter a mode that prepares it for counting The air pump will turn on to purge the air path I Local Mode The counter will be set to offline for factory test purposes The counter will respond to all commands after receiving this command regardless of which select co
38. opa nach dem 12 August 2005 nicht mehr ber die ffentliche Abfallentsorgung entsorgt werden In Ubereinstimmung mit lokalen und nationalen europ ischen Bestimmungen EU Richtlinie 2002 96 EC mussen Benutzer von Elektrogeraten in Europa ab diesem Zeitpunkt alte bzw zu verschrottende Gerate zur Entsorgung kostenfrei an den Hersteller zuruckgeben Hinweis Bitte wenden Sie sich an den Hersteller bzw an den Handler von dem Sie das Gerat bezogen haben um Informationen zur R ckgabe des Altger ts zur ordnungsgem en Entsorgung zu erhalten Wichtige Informationen Bitte zusammen mit den Produktinformationen aufbewahren FRENCH A partir du 12 ao t 2005 il est interdit de mettre au rebut le materiel lectrique marque de ce symbole par les voies habituelles de d chetterie publique Conform ment a la r glementation europ enne directive UE 2002 96 EC les utilisateurs de mat riel lectrique en Europe doivent d sormais retourner le mat riel us ou p rim au fabricant pour limination sans frais pour l utilisateur Remarque Veuillez vous adresser au fabricant ou au fournisseur du mat riel pour les instructions de retour du mat riel us ou p rim aux fins d limination conforme Ce document est important Conservez le dans le dossier du produit ITALIAN Le apparecchiature elettriche con apposto questo simbolo non possono essere smaltite nelle discariche pubbliche europee successivamente al 12 agosto 2005 In conformita alle normat
39. out notice Geen 170 94 mm x 58 42 mm x 165 10 mm 6 7 W x 4 5 H x 11 7 D MET ONE 237A 0 5 and 5 0 micron 2 channel 0 5 0 7 1 0 and 5 0 micron 4 channel 0 5 0 7 1 0 2 0 and 5 0 micron 5 channel 0 5 0 7 1 0 2 0 3 0 and 5 0 micron 6 channel MET ONE 237B 0 3 and 5 0 micron 2 channel 0 3 0 5 1 0 and 5 0 micron 4 channel 0 3 0 5 0 7 1 0 and 5 0 micron 5 channel 0 3 0 5 0 7 1 0 2 0 and 5 0 micron 6 channel Less than 5 at 2 000 000 particles cubic feet 5 W 10 V approximately 6 V with battery pack Sample hold times 1 second to 24 hours Count alarms 1 to 9 999 999 counts Data storage 500 samples rotating buffer Count cycles Up to 100 in Auto mode Locations Up to 250 number appears on the printout Particle size ranges Output RS232 RS485 for computer Pump type Carbon vane 0 1 cfm Battery type Rechargeable NiCd 3500 mAH Operation time 4 hours printing 8 hours without printing Environment 40 to 71 C 40 to 160 F Up to 98 relative non condensing Specifications Section 2 General Information 2 1 Safety information Read this entire manual before unpacking setting up or operating this equipment Pay attention to all danger and caution statements Failure to do so could result in serious injury to the operator or damage to the equipment To make sure that the protection provided by this equipment is not impaired do not use or install this equipment in any m
40. ppendix C PortAll Software The clean room classification standards FS 209E and ISO 14644 1 require specific particle count measurements and calculations to verify the cleanliness level of a clean room or clean area The PortAll software automatically generates clean room verification results from the measurement data from the MET ONE 237 particle counter C 1 Connections In order to communicate with a computer the MET ONE 237 RS232 mode found in the SIO menu is set to normal printer disabled At the time MET ONE 237 particle counter is connected to the computer the location number is set between 0 and 31 to be recognized by PortAll software If there is any communication under computer control the keypad will be disabled until the power to the counter is turned off and on refer to Figure 25 Q 2 mm 1 Computer 2 Port ll adapter C 2 Operation Figure 25 MET ONE 237 particle counter connections 3 Standard 9 pin serial cable 4 MET ONE 237 particle counter The following four rules must be followed to make sure that an accurate classification result from PortAll software The data returned from the particle counter contains a location number for each sample Change the location number from the front panel instrument controls each time the instrument is moved to a new location The PortAll software relies on the location number as an accurate indicator of the number of sample locations and number of sample
41. r from the date of shipment to Buyer the Warranty Period Seller agrees during the Warranty provided it is promptly notified in writing upon the discovery of any defect and further provided that all cost of returning the defective Products to Seller are prepaid by Buyer to repair or replace at Seller s option defective Products so as to cause the same to operate in substantial conformance with said specifications Replacement parts may be new or refurbished at the election of Seller All replaced parts shall become the property of Seller Lamps fuses bulbs and other expendable items are expressly excluded from the warranty under this Section Seller s sole liability with respect to equipment materials parts or software furnished to Seller by third party suppliers shall be limited to the assignment by Seller to Buyer or any such third party supplier s warranty to the extent the same is assignable In no event shall Seller have any obligation to make repairs replacements or corrections required in whole or in part as the result of 1 normal wear and tear 11 accident disaster or event of force majeure 111 misuse fault or negligence of or by Buyer iv use of the Products in a manner of which they were not designed v causes external to the Products such as but not limited to power failure or electrical power surges vi improper storage of the Products or vii use of the Products in combination with equipment or
42. r to Figure 4 on page 10 monitors relative humidity 10 to 90 and temperature 5 to 125 F or 15 to 50 C The MET ONE 237 particle counter displays the reading and includes it in the internal particle count data record Refer to section 3 2 5 on page 12 for installation instructions Figure 18 RH T probe Catalog No 2080825 A 2 High pressure diffuser The high pressure diffuser refer to Figure 19 is connected to the sensor inlet tubing of the MET ONE 237 particle counter The diffuser permits direct sampling of pressurized air at pressures from 30 to 150 psi Figure 19 High pressure diffuser Catalog No 2080372 6 A 3 RS485 converter The RS485 converter refer to Figure 20 converts data from RS232 to RS485 format for longer serial networking to a computer Contact technical support for installation details SHIELD GND FR GND 2 H DATA B 2 DATA A 3 DND 4 DND 5 HV 6 Figure 20 RS485 converter Catalog No 2082383 2 41 A 4 External printer An external printer option provides the printout of the count and temperature relative humidity data Refer to Appendix D on page 49 for additonal information A 5 PortAll software The PortAll software refer to Figure 21 is used to transfer count data from the buffer of the buffer and to display the data on the computer in a spreadsheet format The software performs calculations for Fed Std 209E and ISO 14644 The software includes an adapter for u
43. row keys to change the selected digits to the required value 4 Press and hold the PROG key to save the new settings and exit the programming function The digits will not flash now and the red light on the PROG key will turn off 5 Press and hold the SELECT key until the HOLD light is lit and repeat steps 2 through 4 to set the HOLD time 5 3 2 4 Sampling for the automatic modes The following situation is an example to program a MET ONE 237 particle counter to verify the cleanliness of a large room The space is divided into eight sections to make sure comprehensive measurement N A G PA x Z S SS K Figure 8 Program sampling pattern LAS 1 Sections of a large room 1 8 20 Operation To sample the room in the automatic mode 1 Carry the MET ONE 237 particle counter to the center of the first area of the large room to be tested Place or hold the counter about 4 feet off the floor Make sure that the opening of the isokinetic probe faces directly into the laminar flow Press RUN STOP to initiate counting The display shows three 1 minute samples being taken separated by a 10 second hold time 5 The printer will print the results after each count period When all three cycles are complete the counter will print an additional record showing the average of all the three samples 6 Move to the next location to be tested and program the Location Number as described above When the sampling is
44. s per location Set the sample time to obtain the required sample volume at each location Sample Time x Instrument Flow Rate Sample Volume The PortAll software does not have access to the instrument flow rate and cannot verify that the sample volume complies with standard requirements The MET ONE 237 particle counter can be setup in the following ways e Sample period to one minute 0 1 cubic ft and select Normalize Data counts x 10 in PortAll software OR e Sample period to 10 minutes 1 0 cubic ft and do not select Normalize Data in PortAll software 47 48 The total count data returned from the particle counter must be normalized to counts per unit volume to obtain a correct classification The PortAll software will automatically normalize counts x 10 the count data but this feature must be setup refer to the online User s Guide for instructions The data normalization settings for a MET ONE series instruments are saved based on the instrument address For most instruments the sample location LOC value is also the serial port address Make sure to reset the instrument address after collecting samples in the clean room and before connecting the instrument to the PortAll software Otherwise the count values will not be automatically normalized and an erroneous classification could result Make sure that the address value does not exceed 31 The PortAll software will not recognize an instrument whose address is outside o
45. se with a standard 9 pin serial cable Refer to Appendix C on page 47 for additional information PortAll gt Figure 21 PortAll software Catalog No 2084045 A 6 Carrying case The carrying case refer to Figure 22 protects the MET ONE 237 particle counter during shipment and storage Figure 22 Carrying case Catalog No 2080878 42 Appendix B Computer Interface Operations B 1 Data analysis for ISO 14644 The primary reason for a computer interface with the MET ONE 237 particle counter is to download the count data for analysis ISO 14644 is the governing standard for clean rooms The MET ONE 237 particle counter cannot perform the calculations internally Use the PortAll software package offered by the manufacturer to download data from the counter Perform all the necessary functions to make sure that there is compliance to the ISO standard Refer to Appendix C on page 47 for instructions to setup and operate the MET ONE 227 particle counter with the PortAll software A standard 9 pin to 9 pin serial cable is available instead of the special cable required for simple serial interface when PortAll software is purchased B 1 1 Computer communications The MET ONE 237 particle counter is setup for RS232 and RS485 serial data communications capabilities e RS232 serial interface circuitryy Provides asynchronous communications between the counter and computer e RS485 serial network circuitry Provides asynchr
46. ser safety information 6 E II Ni een ear Da emery ee ee ee Oe ata 15 M Maintenance guidelines aaa na nana aaa nenen enen 25 Manlalmode EE 16 leie EE 15 O Operation BFINGIPIE anne 8 P PortAll software occcooccccccoccconcccnnonoconoonncanocanonnononos 42 POWEL e se ee 13 Precautionary labels 5 protocol communication aaa aaa aaa ana nan aaa ann anes eea eee areas 44 R Relative Humidityl Temperature RH T probe 41 Replacement Parts nana aaa nna ee aida eee ee reve eee nep enet 33 RS485 converter 20 nana nana eee ankese kene pese res vene eres eress 41 S val ll tele e AE 5 Statement Of conforme 39 Status indicators gjyshes t nde je een 15 U Unpack the instrument aaa nan ne nane eee nera eee nenn 9 W Waranty E 37 WEEE requirement 39 51 Index 52 Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12 August of 2005 In conformity with European local and national regulations EU Directive 2002 96 EC European electrical equipment users must now return old or end of life equipment to the Producer for disposal at no charge to the user Note For return for recycling please contact the equipment producer or supplier for instructions on how to return end of life equipment for proper disposal Important document Retain with product records GERMAN Elektrogerate die mit diesem Symbol gekennzeichnet sind durfen in Eur
47. software not supplied by Seller If Seller determines that Products for which Buyer has requested warranty services are not covered by the warranty hereunder Buyer shall pay or reimburse Seller for all costs of investigating and responding to such request at Seller s then prevailing time and materials rates If Seller provides repair services or replacement parts that are not covered by the warranty provided in this Section Buyer shall pay Seller therefore at Seller s then prevailing time and materials rates ANY INSTALLATION MAINTENANCE REPAIR SERVICE RELOCATION OR ALTERATION TO OR OF OR OTHER TAMPERING WITH THE PRODUCTS PERFORMED BY ANY PERSON OR ENTITY OTHER THAN SELLER WITHOUT SELLER S PRIOR WRITTEN APPROVAL OR ANY USE OF REPLACEMENT PARTS NOT SUPPLIED BY SELLER SHALL IMMEDIATELY VOID AND CANCEL ALL WARRANTIES WITH RESPECT TO THE AFFECTED PRODUCTS EXCEPT AS EXPRESSLY PROVIDED IN THIS SECTION SELLER DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED ORAL OR WRITTEN WITH RESPECT TO THE PRODUCTS INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE SELLER DOES NOT WARRANT THAT THE PRODUCTS ARE ERROR FREE OR WILL ACCOMPLISH ANY PARTICULAR RESULT IDEEN eil NA SE SNS Bee U 12 2000 GE Sy 777 Y ZZ Gh Ke A ZANIN D Ny Ni SS ai YA SS Ze e A Appendix A Optional Accessories A 1 Relative humidity Temperature RH T probe The RH T probe refe
48. t Program the Upper and Lower alarm limits for both readings Select the temperature scale to use Plug in the probe to RH T connector to enable the humidity and temperature programming functions Turn on the counter 23 Operation To program the settings for relative humidity temperature 1 To change the alarm limits press and hold the SELECT key until the TEMP light is lit The 7 digit display will show the temperature reading and the scale being used 2 Press and hold the PROG key The light on the PROG key turns red The 3 digit display will show HI HI indicates that the upper alarm limit is currently being programmed The digit display shows the current alarm limit and the scale being used and the left digit begins to flash Press and hold the SELECT key until the required digit begin to flash Press the UP and DOWN arrow keys to change the flashing digit to the required value Press and hold the SELECT key until the 3 digit display shows LO LO indicates that the low temp level is currently being programmed The 7 digit display shows the current alarm limit and the left digit begins to flash and the scale being used 6 Press and hold the SELECT key until the desired digit flashes Note The temperature scale is only programmable with the HI temperature alarm limit 7 Press the UP and DOWN arrow keys to change the digit to the required value Press and hold the PROG key to save the new settings and exit the programming
49. ted with plastic caps on the openings and should remain in place till they are used in order to minimize contamination 2 Connect the isokinetic probe to the sensor inlet so that the open end faces the direction of the air stream refer to Figure 4 Figure 4 Isokinetic probe connected to MET ONE 237 particle counter 1 lsokinetic probe 2 Sensor inlet 10 Installation 3 2 2 Install the purge filter The purge filter refer to Figure 3 on page 9 item 3 is used for maintenance purge and zero count of the MET ONE 237 particle counter The purge filter permits direct sampling of pressurized air at pressures ranging from 30 to 150 psi Note It is recommended that the purge filter be applied to the counter before moving the MET ONE 237 particle counter to avoid cross contamination Note Verify the zero counts before moving the MET ONE 237 particle counter To install the purge filter 1 Remove the red sensor inlet cap or the isokinetic probe from the MET ONE 237 particle counter 2 Connect the purge filter to the sensor inlet 3 2 3 Load printer paper To load the printer paper 1 Open the paper tray cover 2 Remove any remaining paper from the last roll Snip the paper at the spool and press PAPER FEED until the paper tray is empty 3 Trim the end of the new paper roll e To an arrow shaped edge for a Seiko Printer Figure 5 e Toa straight edge for a Fujitsu Printer Figure 5 Note The Fujitsu printer has
50. the DATE light is lit and repeat steps 2 through 4 to set the date 5 3 1 5 Set alarm limits To change the alarm limits in the manual mode 1 Press and hold the SELECT key until the CNT light is lit The 3 digit display will show the particle size channel and the 7 digit display will show the count for that size 2 Press and hold the PROG key The light on the PROG key turns red and the 7 digit display shows the current alarm limit and the left digit flashes Press and hold the SELECT key till the required digit flashes 4 Use the UP and DOWN arrow keys to change the digit to the required value Press and hold the PROG key to save the new settings and exit the programming function The digits will not flash now and the red light in the PROG key will turn off 18 Operation 5 3 2 Automatic mode 5 3 2 1 Set location In the automatic mode the MET ONE 237 particle counter automatically takes a specified number of samples and stops allowing unattended operation The automatic mode covers the typical programming requirements for the common functions associated with the MET ONE 237 particle counter Note The MET ONE 237 particle counter need not be programmed in any order but maybe programmed anytime without affecting others To start the Automatic mode 1 Press and hold the MODE key until the AUTO light is lit numbers To set location numbers in the automatic mode 1 Press and hold the SELECT key until the OPT light is l
51. ts that have been modified or integrated with other products when the effect of such modification or integration materially increases the time or difficulty of servicing the instrument THIS WARRANTY IS GIVEN BY HACH ULTRA ANALYTICS WITH RESPECT TO THIS INSTRUMENT IN LIEU OF ANY OTHER WARRANTIES EXPRESSED OR IMPLIED HACH ULTRA ANALYTICS AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FORA PARTICULAR NON CONTRACTUAL PURPOSE HACH ULTRA ANALYTICS RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY HACH ULTRA ANALYTICS AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF HACH ULTRA ANALYTICS OR ITS VENDORS HAS BEEN GIVEN ADVANCED NOTICE OF THE POSSIBILITY OF SUCH DAMAGES 37 38 Section 11 Certification This section contains copies of certification documents and a statement of conformity to WEEE requirements DECLARATION of CONFORMITY We Pacific Scientific Instruments 481 California Avenue Grants Pass Oregon 97526 declare under sole responsibility that the Particle Counter Model 227 part number 2082611 conforms to Directive 89 336 EEC for Electromagnetic Compatibility and Directive 73 23 EEC for Low Voltage Compliance was demonstrated to the following specifications as listed in the official Journal of the European Communities EN 61326 1998 Class A
52. y featured particle counter that includes sensor pump electronics and the printer Both the variants use the same sensor pump CPU and display electronics The MET ONE 237A particle counter is calibrated with channel one sensitivity of 0 5 um and the MET ONE 237B particle counter is calibrated with a channel one sensitivity of 0 3 um Both operate at a flow rate of 0 1 cfm The sample passes through a laser beam in the sensor The particles in the sample scatter the laser light The sample then passes through the pump and a filter to trap particles in the counter The flashes of scattered light are converted to electronic pulses directly proportional to the amount of scatter to make a correlation to particle size The electronic pulses are counted and stored in channel bins in a data record which includes the date and time from the CPU clock If the RH T probe is attached snapshots of environmental conditions are also included refer to Figure 2 below Section 3 Installation DANGER Only qualified personnel should conduct the tasks described in this section of the manual This section describes the setup of the MET ONE 237 particle counter and connections to the equipment If necessary contact the Technical Support Department with questions regarding the compatibility or suitability of this product for a specific application 3 1 Unpack the instrument Remove the components from the shipping container and inspect for damage Verify th
Download Pdf Manuals
Related Search