ML-500 User Manual - DryCal
Contents
1. 2 Unpacking checklist nica ee eee anda ren TAS 4 Warnings e a NN 4 Operating Your MI S0D 200644442 a 5 Getting Started sssri iieiaei srna aia O 5 Turning the MI 500 0N amp Off msc A nn a a ae 5 LCD BaCk A OA 5 Low Battery Indicator u een a aa e EE EANES 5 Usmo tHE ML SOO KEY AA A Eana Epa EEan 6 General Menu NAVIGATION adan 6 Keypad Function ii E eee ce sasnuamasattoncacuads sfoueauseaua 6 ML 500 Menu TEE eat 7 Enor Messages nato 8 Installing s Removing Flow Cells a Heer nennen 9 Factory Default Setting Seiras shes ceed a E aa a aa aa a ATE Aa an Her Eee 9 Connecting the ML 500 to a Gas FIOW SOURCE visionaria rana dana aD a a la ah kann aa Reh 9 TAKING REAGINGS unse mensch a a a a in m aaae aaa KR En araara 10 Setting User Preferences uud nk estes ea ER dedito 10 SING Sensor FACTO Seta A HE En a 13 A Pa ee E ee TE ra een ern E 13 Annual Maintenance and Calibration x 2u 40 00 ana adaa a a Da 15 e Jg l ler Lao y sissies yale NE EEE aa a a E a GENE ER tied voter e ree taueuatai wast fei ect AIRER E Ea E E A E OHLUERN 15 Sending Your MIEDO o Mes ai 16 SHIPPING u nn anregen 16 A one aavssdedshedevevecnvsd acdnecnten Cdeentevediesipeedtedeeeshanneebaede canales dues saubesedecadedeye es 16 Mesa Met Lab Series ML 500 Specifications cceeeeeee cece eee eee e eee etter eee terre a aaa aa aidea eens Aaaa a 17 Limited Warianty ceren N EODEE ONE io a ai aii 18 Accuracy Reliability Convenience Intr2. enable your ML 500 to scale its actual flow measurements to match the adjusted flow from the MFC or MFM input the sensor factor into the ML 500 before calibrating the MFC or MFM see SETUP Readings The Sensor Factor is displayed on the run screen of the ML 500 as SF X XXX The default setting is 1 000 Because a sensor factor other than your ML 500 s default value of 1 000 modifies the actual flow to a reported flow make sure to change this setting back to 1 000 when a calibration involving the use of a sensor factor is completed Leak Testing To ensure proper function of the ML 500 annual factory calibration is recommended However a quality assurance self test feature is provided to verify proper integrity of the flow cell It is recommended that the self check leakage test be conducted periodically as part of an ongoing quality assurance program Passing the leak test does not ensure proper function of the ML 500 although it does ensure that total leakage is within the product s allowable limits The leak test may take as long as 6 hours or more to complete per fitting Since the leak test may take several hours it is recommended to plug the charger into the base during the leak test to prevent unit from turning off When performing the leak test procedure note the inlet and outlet leakage If the inlet and outlet leakage do not agree within 50 of each other assure that the inlet and outlet Fittings are tight then repeat the leak
3. gas flow standard as a periodic quality assur ance measure as well as to provide you and your organization with a defensible audit trail of premier quality About Your ML 500 The ML 500 is a positive displacement primary piston prover for gas flow measurements in either pressure or vacuum applications Using Proven DryCal Technology it combines the accuracy of a primary standard with unequaled speed and convenience Volumetric or standardized flow readings are obtained with the push of a button The ML 500 can be set to take flow readings manually one reading at a time or automatically in the hands free continuous auto read mode The ML 500 can be programmed for up to 100 readings in an averaging sequence Theory of Operation The versatile ML 500 can be used to measure the gas flow rates of both pressure and vacuum flow sources Its Proven DryCal Technology features a near frictionless piston and flow cell design that is primary highly accurate and liquid free for primary flow measurements of unequaled speed and convenience For more information about our Proven DryCal Technology please visit our website at www drycal com The ML 500 consists of two primary components The base and the flow cell there are three interchangeable flow cell models each with a designated flow range The flow cell plugs into the base unit in order to create a complete func tional ML 500 system Neither component can operate independently The base com
4. in an averaging sequence use the Up Down arrows to toggle between fields such as Temperature or Pressure units Use the Fwd and Back keys to advance to the following menu or return to the previous menu Keypad Function The keypad is used for numeric character entry When pressed each alphanumeric button will display its corresponding number To go back use the back arrow The ML 500 will overwrite previous entries Use the Enter key to lock in any selections Main Menu Run Detur Leak Test To enter Setup Menu 1 from the Main Menu select Setup and press Enter Setup Menu 1 Sensor Factor Calibration Type Setur Meru 1 Sensor Factor 1 000 Cal Type Std Option 1 Sensor Factor As applicable change the Sensor Factor from its default value of 1 000 to the value provided by the MFC or MFM manufacturer see Using Sensor Factors Option 2 Cal Type This option changes the sample type being displayed Toggles between std standardized readings and vol volumetric readings Setup Menu 2 Reading Type in Average amp Minutes Reading Setur Menu 2 Reading Tepe Cort in Avo if Min Reading 55 Option 1 Reading Type Toggles between Cont continuous auto read and Burst performs continuous auto read then stops after the quantity in averaging sequence is reached as programmed in Setup Menu 2 Option 2 in Average Option 2 in Average Cha
5. 1 20 seconds Weight 85 1 oz 2412 5 g 86 oz 2439 3 g 88 4 oz 2507 g Inlet Fitting 1 4 1 4 1 4 Outlet Fitting 1 4 1 4 3 8 Specifications based on averaged readings Accuracy is stated as a percent of reading including standardization if applicable At a gas pressure of 760mHg and a gas temperature of 25 C with standardization set to 21 1 C Basics Dimensions Base H x W x D 3 9 x 5 25 x 10 67 in 99 x 133 x 271 mm Dimensions Cell H x W x D 10 15 x 6 x 4 in 258 x 152 x 102 mm Weight Base 43 5 oz 1233 g Gas Compatibility Non corrosive non condensing non combustible gasses Less than 70 humidity Usage Flow Mode Suction and Pressure Configuration Base with modular interchangeable flow cells three Temperature amp Pressure Sensors Yes in the flow stream of each interchangeable flow cell Reading Modes Single Auto or User Specified Burst AC Adapter Plug 12V DC gt 500 ma 2 5 mm center positive North American standard others available Battery Type 6 volt lead acid Inlet and Outlet Fittings Swagelok Ambient Temperature 15 30 C Storage Temperature 0 70 C Ambient Humidity 0 70 non condensing Display Backlit LCD Operating Pressure Absolute 15 PSI Data Port Serial Warranty 1 year battery 6 months Mesa highly recommends annual Recertification product maintenance pre and post dynamic flow comparisons and full dimensional calibration This is elective and is not incl
6. Date MT DT YR Time ANSP Auto off Enable 4 Press Fwd arrow after Menu 6 to i I 1 return to Main Menu I Setur Menu 6 PTU 2 188 com FTUH 1 664 e Use the Up Down arrows to navigate between different lines Use the Enter button to select a field to be modified depending on the function and to lock in any changes e Use either the keypad or the Up Down arrows to modify the desired field Loro m m m om m m m m m am am am am am am am a aD CD CE CE CD GEB ED Forward navigation gt Backward navigation e Use the Fwd and Back keys to advance to the following menu or return to the previous menu Q ML 500 Menu Tree Forward navigation p Backward navigation To exit at any time press Reset m m m m e Use the Up Down arrows to navigate between different lines e Use the Enter button to select a field to be modified depending on the function and to lock in any changes e Use either the keypad or the Up Down arrows to modify the desired field e Use the Fwd and Back keys to advance to the following menu or return to the previous menu Error Messages Cell is not present or unit does not see cell Piston did not return to bottom of cell properly To exit press Back or wait to return to Main Menu To exit press any key Installing amp Removing Flow Cells The ML 500 accepts interchangeable ML 500 only fl
7. Proven DryCal TECHNOLOGY ML 500 User Manual Mesalabs Mesalabs Mesa Labs Commitment As a manufacturer of critical equipment quality is the highest priority in our manufacturing process Mesa Labs commits to providing creative innovative thinking and the engineering and scientific expertise needed to produce gas flow related products and solutions that are universally recognized for their superior performance quality and value Proven DryCal technology is the recognized leader in gas flow measurement providing the industry s most reliable products service and solutions for professionals in environmental protection workplace safety industrial process control and laboratory calibration We strive to provide the closest NIST traceable legal defensibility of any flow calibration equipment manufacturer and we actively maintain our NVLAP NIST ISO 17025 laboratory accreditation in order to support our claims and continually improve our quality system and laboratory profi ciency Thank you for purchasing our products From all of us at Mesa Labs best wishes for many years of accurate defensible primary flow measurements Mesa Laboratories Inc 10 Park Place Butler NJ 07405 USA 973 492 8400 FAX 303 484 4992 www mesalabs com Symbol MLAB on the NASDAQ Table of Contents Introduction ua ernennen 2 Register Your ProdUGt u nisse 2 About Your ME 500 ae 2 Theory of Operation ea ee einen TEEL ENEE
8. d Notwithstanding the foregoing Mesa Labs shall have no liability to repair or replace any Mesa Labs product 1 That has been damaged following sale including but not limited to damage resulting from improper electrical voltages or currents defacement misuse abuse neglect accident fire flood terrorism act of God or use in violation of the instructions furnished by Mesa Labs 2 When the serial number has been altered or removed or 3 That has been repaired altered or maintained by any person or party other than Mesa Labs own service facility or a Mesa authorized service center should one be established This warranty is in lieu of all other warranties and all other obligations or liabilities arising as a result of any defect or deficiency of the product whether in contract or in tort or otherwise All other warranties expressed or implied including any implied warranties of merchantability and fitness for a particular purpose are specifically excluded In no event shall Mesa be liable for any special incidental or consequential damages for breach of this or any other warranty express or implied whatsoever MesaLabs Mesa Labs 10 Park Place Butler NJ USA 07405 Phone 973 492 8400 Toll Free 800 663 4977 Fax 303 484 4992 Email csbutler mesalabs com Web www mesalabs com 2015 Mesa Labs MKO1 32 Rev J 17
9. e Value PTV and Piston Tare Value Multiplier PTVM PTV stands for Piston Tare Value this is the amount of gas that passes around the piston during measurement All Mesa calibration equipment has a factory set Piston Tare Value that is stored in the memory of the Bios DryCal cell The value is typically very small 0 1 ccm for low flow cells 0 2 ccm for medium flow cells and 1 4 ccm for the high flow cells We adjust for this leakage by adding the Piston Tare Value PTV to the measurements On our highest accuracy instruments we allow for the adjustment of the Piston Tare Value with the Piston Tare Value Multiplier PTVM When using the instrument with gas species other then air or nitrogen the molecular behaviors of these gases may degrade the Piston Tare Value For highest accuracy the instrument s Piston Tare Value PTV can be adjusted Adjusting the Piston Tare Value is accomplished by entering a new Piston Tare Value Multiplier PTVM The Piston Tare Value Multiplier is multiplied to the Piston Tare Value and used to adjust the measurement the de fault value for air and nitrogen is 1 000 The Piston Tare Value Multiplier PTVM can be set to any value from 3 000 to 0 2000 For flows above 20 ccm a new a Piston Tare Value Multiplier PTVM value can be calculated by using the viscosity of the gas being measured and accurate results will be obtained Calculate the PTVM by taking the ratio of the viscosity of nitrogen to the viscosity
10. ed rather than product related we reserve the right to charge an evaluation fee Shipping When shipping your ML 500 please ensure that the packaging is adequate to protect the instrument Whenever possible your ML 500 should be shipped in its original packaging or within a hard case such as a Pelican carrying case available for purchase from Mesa We highly recommend using a standard freight carrier e g FedEx UPS that supplies tracking numbers and insuring the product against damage in transit Mesa is not responsible for damage that occurs during shipment Storage If you need to store your ML 500 for an extended period please follow these guidelines Always store it in a clean dry place If possible leave it attached to its AC power adapter charger while in storage If your ML 500 cannot be attached to its AC power adapter charger while in storage Fully charge it before extended storage If the battery isn t fully charged prior to storage it might be permanently damaged Fully charge it at least once every three months When removing your ML 500 from storage recharge the battery for at least 12 hours prior to use Met Lab Series ML 500 Specifications Interchangeable Flow Cell Models Model ML 500 10 ML 500 24 ML 500 44 Flow Range 5 500sccm 50 5 000sccm 500 50 000sccm Accuracy Standardized 0 40 0 35 0 40 Accuracy Volumetric 0 25 0 20 0 25 Time Per Reading 1 80 seconds 1 50 seconds
11. nents necessary for complete operation Please take a moment to check that you have received the following items If you believe you have not received a full shipment or if you have any questions please contact Mesa Customer Service immediately Your ML 500 Base with the following Your ML 500 Flow Cell Includes e ML 500 Electronic Base e ML 500 Flow Cell e Battery Charger e Leak Test Plug e Leak Test Cable e Certificate of Calibration e RS 232 Cable e Certificate of Calibration Warnings A The ML 500 is not rated intrinsically safe and is not for use with explosive gasses or for use in explosive environments ZN The ML 500 is not designed for pressurization above 2 PSIG or for gas flows above the rated specifications of the flow cell in use Please consult the product specification on the inside front cover of the manual for more information regarding acceptable gas flow ranges or visit our website at www drycal com for the most current product specifications A For use with clean laboratory air or other inert non corrosive gasses only Operating Your ML 500 Getting Started Although the ML 500 s battery comes charged from the factory we recommend fully charging your new battery by connecting the AC power adapter charger to the ML 500 s charging jack and then plugging it into a standard wall outlet Initial charging should take approximately eight hours After initial charging you may continue to charge your ML 500 indefinitely b
12. ng The ML 500 is designed to be used at ambient pressures Do not subject the ML 500 to a pressure 2 PSIG higher or lower then atmospheric pressure This is easily accomplished by leaving the outlet of the flow cell open to atmosphere for pressure applications or the inlet outlet open to atmosphere in vacuum scenarios If tubing is needed to exhaust test gases to a fume hood insure that the exhaust tubing is of sufficient diameter such that the pressure to the ML 500 calibrator does not exceed 2 PSIG Taking Readings The ML 500 default is preset for ten 10 readings in an averaging sequence This parameter is user definable see Setup Menu 2 Reading Type in Average amp Min Reading Main Meru Fun SeLur Leak Test 1 Press Enter Read or Auto to enter the Run Menu e Press the Read button to initiate a single reading e Press the Auto button to initiate continuous hands free readings e Press the Stop button to stop current flow reading and open valve e Press the Reset button to clear the display of current data Setting User Preferences The ML 500 offers enhanced electronics options to allow the user to define parameters specific to an application There are six Setup Menus General Menu Navigation Use the Up Down arrows to navigate between different lines within a menu Use the Enter button to select a field to be modified and to lock in any changes Use the keypad for data entry such as the number of readings
13. nges the quantity in an averaging sequence consecutive readings from 1 100 Option 3 Min Reading Specifies the time interval in minutes between flow readings Setup Menu 3 Pres Units Temp Units Temp Corr Setur Menu 3 Prez Units mmHg Teme Units C Teme Corr a BE Option 1 Pres Units This option allows you to toggle between mmHg mBar kPa and PSI Option 2 Temp Units This option allows you to set the temperature units for For C Option 3 Temp Corr This option is used to set the standardization temperature Setup Menu 4 Date Time amp Battery Voltage Setur Menu 4 47 18 00 05 603 AM Bat 5 90 Volts This menu has an alternate navigation method Within this menu use the Fwd and Back arrows to select each option such as Month or Day To change a selected option use the Up Down arrows Date and time formats are specified using Setup Menu 5 Date and Time Formats Option 1 Date This option allows you to set the date Option 2 Time This option allows you to set the time Setup Menu 5 Date amp Time Formats Setur Menu 5 Date MT DT YR Time AMPH Auto off Enable Option 1 Date Toggles between MT DT YR or DT MT YR date format Option 2 Time Toggles between AM PM or 24 Hr time format Option 3 Auto Off Toggles between Enable or Disable 65 minute auto shut off Setup Menu 6 Piston Tar
14. oduction Congratulations You ve chosen the Met Lab Series ML 500 featuring Proven DryCal Technology The ML 500 offers you 0 25 of reading volumetric 0 40 of reading standardized accuracy within a portable primary standard that s ideal for both volumetric and mass flow applications where a high degree of measurement accuracy is required Before you get started we recommend taking a few moments to review this manual and familiarize yourself with the ML 500 If at any time you have questions regarding its operation please contact Mesa through our web site www drycal com or call us at 973 492 8400 to speak with one of our knowledgeable customer support representatives Register Your Product Before we begin please register your product with Mesa Laboratories Inc To complete your registration log on to our website at http drycal mesalabs com product registration and complete the registration form Registration of your new DryCal product ensures your instruments warranty claim information is properly documented in Mesa s database and provides you the peace of mind that your new calibration equipment is covered under our warranty service plan Addi tionally this registration will allow you to better manage your service and calibration dates through the receipt of timely reminders at 45 and 15 days prior to the recommended calibration date of your instrument Mesa recommends annual service and calibration of your DryCal primary
15. of the gas under test For example to calibrate hydrogen consider the following at 0 C the viscosity of nitrogen is 165 31 microPoise and the viscosity of hydrogen is 83 21 microPoise Express these as 165 31 83 21 or 1 987 and enter 1 987 as the Piston Tare Value Multiplier PTVM for this cell When measuring alternate gases at flows below 20 ccm or for absolute best accuracy it may be necessary to perform a dynamic leak test using the gas under test Contact Mesa for information on this test Setur Menu 6 PTU 6 188 ccm FTUH 1 688 Option 1 PTV Piston Tare Value This is the unique piston tare value of a particular flow cell It is factored into each flow reading for leakage independent measurements The piston tare value is factory set and non adjustable Option 2 PTVM Piston Tare Value Multiplier This is the adjustable piston tare value multiplier used to adjust the piston tare value to enhance accuracy at lower flows when using gasses other than nitrogen or air The piston tare value multiplier s factory setting is 1 000 although it may be changed to any value between 0 200 and 3 00 if gasses other then air or nitrogen are used Using Sensor Factors When calibrating an MFC or MFM using a surrogate or proxy gas meaning the MFC or MFM was originally calibrated by the manufacturer for a gas other than what you are currently using the reading of the ML 500 can be scaled by the sensor factor to allow for this To
16. our automated web based system at at http drycal mesalabs com request an rma by emailing csbutler mesalabs com or by calling us di rectly at 973 492 8400 Sending your ML 500 to Mesa without an RMA number may result in return of the instrument without inspection or a substantial delay in service turnaround time When requesting your RMA number provide your ML 500 model serial number and revision level Also describe any product issues you may be experiencing Please keep in mind that Mesa will not begin evaluation and service of your ML 500 until you have accepted and approved in writing our formal RMA quote for service This protects both you and Mesa during this process and ensures a fair and efficient service experience If sending your ML 500 for repair or evaluation rather than elective Recertification please contact Mesa for technical support or troubleshooting assistance prior to shipping the unit We will first attempt to resolve the situation over the phone or via email If you ve provided us with a detailed description of your ML 500 issue and application details and we re unable to resolve the situation by telephone or email we ll issue you an RMA number for the prompt return of your ML 500 for evaluation Please note that Mesa will make every attempt to verify your issue as we want you to get the most out of your ML 500 However if we are unable to detect a product issue or if we determine that the issue is application relat
17. ow cells for different flow ranges If the user attempts to enter the Run Menu prior to installing a flow cell the unit indicates No Cell and returns to the Main Menu after a 5 second delay Installing Flow Cells 1 Position the selected flow cell into the base opening its top label facing you 2 Turn the cell back and forth to locate the guide pins when the guide pins are engaged press down 3 When powered on the ML 500 senses which cell is installed and displays the appropriate units for that cell Removing Flow Cells Grasp the flow cell firmly hold the base in place and lift upwards Factory Default Settings The ML 500 has a number of user definable features and settings To return to factory default settings at any time press Reset followed by Save from the Main Menu Parameters Factory Settings Optional Settings No of Readings in an Averaging Sequence 10 1 100 Atmospheric Pressure mm Hg mBar kPa PSI Temperature oC oF Standardized Temperature Setting 0 C 0 0 50 0 C Date Format MM DT YR DT MM YR Time Format AM PM 24 Hr Connecting the ML 500 to a Gas Flow Source The accuracy of the ML 500 is dependent upon its source being stable An unstable flow source may produce inconsis tent readings Flow direction is indicated by the arrow on the top of the flow cell To use a pressure flow source connect to the inlet fitting or to use a vacuum flow source connect to the outlet fitti
18. ponent houses the main computer and timing crystal The flow cell is easily fitted into the base unit s 9 pin connector and two guide pins The flow cell performs the actual flow measurements For this purpose it houses a piston and glass assembly comprised of a borosilicate glass tube housing a precision machined piston The flow cell also contains an integrated temperature sensor and barometric pressure transducer in the gas flow stream for instant conversion of the volumetric readings into standardized flow The ML 500 includes an RS 232 port serial port and cable You can also utilize Mesa s DryCal Pro software package available for download from http drycal mesalabs com drycal pro software DryCal Pro software captures flow data from your DryCal instrument for easy export into common soft ware packages e Capture flow data from your DryCal directly to a PC and export the data to a Microsoft environment e Real time data monitoring e Enter flow rates from pumps or other flow source and calibrate the flow source e Enter flow data from a flow meter and compare the flow measurements from your DryCal precision calibrator e Upload the latest version of the firmware to your DryCal Gas Inlet Gas Outlet Cell Connector Guide Pins Base Connector Serial Port Charging Jack Reset Back and Side Front and Side Unpacking Checklist Your ML 500 has been packaged with care and includes all compo
19. re and maintenance Mesa recommends an annual calibration by our ISO 17025 accredited laboratory to help ensure the best possible flow measurements and to provide a bullet proof audit trail for those applications subject to regulatory requirements If you should encounter any problems with your ML 500 immediately contact customer service and provide a detailed description of your situation including ML 500 model and serial number information about the flow source and the current calibration setup environmental conditions during the test the flow point or points that you re checking and an explanation of the issue you re experiencing Recertification Your ML 500 primary piston prover is a precision measuring standard comprised of moving parts that are machined to extremely close tolerances Additionally various environmental factors product wear drift of the temperature sensors and pressure transducers or inadvertent damage may adversely affect your ML 500 s measurement accuracy or general performance For these reasons Mesa highly recommends having your ML 500 annually verified by our ISO 17025 accredited laboratory in order to ensure its measurement integrity For those applications subject to regulatory or ISO require ments verification by our accredited laboratory provides you with a defensible audit trail of the highest quality As the ultimate quality assurance measure as well as to keep your ML 500 in top condition and updated wi
20. re or Pressure units Use the Fwd and Back keys to advance to the following menu or return to the previous menu Keypad Function The keypad is used for both numeric character entry When pressed each alphanumeric button will display its corresponding number To go back use the back arrow The ML 500 will overwrite previous entries Use the Enter key to lock in any selections e Reset Button Clears both the current reading and the group average and opens the valve allowing the piston to return to its resting state e Stop Button Stops current reading and opens the valve allowing the piston to return to its resting state e Auto Button Initiates automatic readings must be accessed from the Run Menu If the Reading type has been set to Cont in Setup Menu 2 the unit will run until the preset average is reached and then restart the cycle If the Reading type has been set to Burst in Setup Menu 2 the unit will run until the preset average is reached and then stop e Read Button Initiates a single reading must be accessed from the Run Menu ML 500 Menu Tree Main Menu ein Run Setur Leak Test 4 I l Setur Menu 1 Sensor Factor 1 668 Cal Type Std 4 I I Setur Menu 2 Reading Tore Cort in Avo if Hin Readinsa Be 4 I 1 Setur Menu 3 Prez Units mmHg Teme Units C Teme Corr a Pre 4 l I Setur Menu 4 Ar 18 68 65 03 AM Bat 6 99 Volts 4 I I Setur Menu 5
21. test procedure If the problem persists please contact Mesa The maximum leakage limits are 200 ccm for the ML 500 10 1 000 ccm for the ML 500 24 and 3 000 ccm for the ML 500 44 If the leakage exceeds the maximum limits repeat the leak test procedure If the problem persists please contact Mesa for assistance To Initiate the Leak Test 1 Place the ML 500 on a flat vibration free surface 2 While in the Main Menu install the leak test cable included with the ML 500 base unit between the 9 pin ML 500 Base Connector and the 9 pin Cell Connector 3 From the Main Menu remove the cell and select Leak Test 4 After a leak test is initiated the display will read 5 Place the leak test plug over either the inlet or the outlet port fitting on the ML 500 flow cell 6 Invert the ML 500 flow cell 7 Push any key to commence the leak test At this point the ML 500 will time the descent of the piston The leak test may take up to 6 hours to complete The display will read 8 If the test is completed successfully a leakage rate will be displayed The display will appear similar to the following 9 Repeat the procedure with the leak test port cap over the opposite port fitting Leak Test Setup Inverted Cell Leak Test Plug N Va Swagelok Fitting Leak Test Cable Annual Maintenance and Calibration Your ML 500 is engineered to provide years of reliable service with appropriate ca
22. th the latest hardware and firmware upgrades as available Mesa offers our elective Recertification program Recertification is an in tensive service and calibration package that provides pre and post dynamic flow comparisons against our Proven Bios DryCal Technology lab standard complete product refurbishment including cleaning of the piston and glass assembly installation of any available upgrades and other routine and preventative maintenance items and full dimensional cal ibration comprised of 20 or more tests using precision instruments and gauges such as depth and laser micrometers and a temperature bath When completed you receive NIST traceable ISO 17025 ANSI Z 540 and NIST Handbook 150 backed calibration certificates Recertification includes a 90 day service warranty should any related labor or parts replacements prove faulty Due to the intensive nature of our ML 500 Recertification the time spent within our service facility during this pro cess is generally fourteen days beginning from the day we receive your product For a detailed explanation of our Recertification process our laboratory and our accreditation please visit our website at www drycal com and visit the Calibration amp Repair page Sending Your ML 500 to Mesa Please contact Mesa for an RMA return merchandise authorization number before sending your ML 500 to our factory for elective Recertification or other service You can get an RMA number through
23. uded as a warranty item All specifications are subject to change Please contact Mesa or visit our web site at www drycal com for the most current product information DryCal Pro Software Visit Mesa s website to download your copy of DryCal Pro software http drycal mesalabs com drycal pro software DryCal Pro captures flow data from your ML 500 directly to a pre configured table The data can be exported to se lectable Microsoft office environment To run DryCal Pro you must have Windows XP or 7 Microsoft Excel 2003 and up and a RS232 port or if your PC does not have an RS 232 port you will need a USB to RS 232 adapter Limited Warranty The Met Lab Series ML 500 is warranted to the original end user to be free from defects in materials and workmanship under normal use and ser vice for a period of one year from the date of purchase as shown on the purchaser s receipt The Met Lab Series ML 500 s battery is warranted for six months from the original purchase date If the unit was purchased from an authorized reseller a copy of an invoice or packing slip showing the date of purchase may be required to obtain warranty service The obligation of Mesa Labs under this warranty shall be limited to repair or replacement at our option during the warranty period of any part that proves defective in material or workmanship under normal use and service provided the product is returned to Mesa Labs transportation charges prepai
24. user to connect to an external power source prior to the unit powering down Time between low battery indication and loss of power varies depending on the current application Battery Disposal PB In compliance with the European Union CE directive 2006 66 EC the battery in your ML 800 or ML 500 base should be removed for recycling prior to disposal of the ML 800 or ML 500 base The battery in the ML 800 500 is a valve regulated sealed lead acid battery Please note that opening the ML 800 or ML 500 base may damage connections so this procedure should only be used for battery disposal PROCEDURE Remove six black Phillips head screws on the back and side of the ML 800 or ML 500 base Lift off the top control panel remove the two screws holding the bracket that retains the battery and disconnect the connectors plugged into the battery Lift the battery from the case ML 500 Keypad Power button A 65 minutes auto shut off E Backlight og uP 1 2 3 j j BACK ara wo Menu navigation Use for data entry Dom ES ES ou cox a Reset Stop Q Product functions Using the ML 500 Keypad General Menu Navigation Use the Up Down arrows to navigate between different lines within a menu Use the Enter button to select a field to be modified and to lock in any changes Use the keypad for data entry such as entering standard temperature conditions use the Up Down arrows to toggle between fields such as Temperatu
25. y leaving it connected to the power sup ply Otherwise make sure to fully charge your ML 500 at least once every three months to help maintain battery life On bases manufactured after January 2008 a small cooling fan was added for improved performance The fan operates when the base is connected to the charger Turning the ML 500 On amp Off Press On to start the ML 500 An opening screen will appear indicating the instrument s revision level followed by the Main Menu The ML 500 has a battery saving automatic shut off system After 65 minutes of inactivity the ML 500 will shut off Alternatively the unit can be shut off manually by pressing the Reset button followed by the number 0 from the Main Menu LCD Backlight The ML 500 s LCD display includes a backlight function to illuminate the display The default setting for the backlight is always on If you wish to conserve battery power you may wish to turn the backlight off or enable the backlight only when inputting information on the keypad To turn the backlight off from the Main Menu press the Light button one time To enable the backlight only when inputting information on the keypad press the Light button a second time To return to the default setting always on press the Light button a third time Low Battery Indicator A low battery condition is indicated by a B appearing in the upper right hand corner of the LCD The low battery indicator allows the
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