Moisture Analyzer User Manual
Contents
1. 29 Stored Data Menu Not available on 21 CFR Part 11 compliant instruments 29 CAM PATO Meni d RE 30 Jum m 31 Diagnose Men m M 32 CONDITION PROMPTS AND SYSTEM FAILURE CODES e eee eee 33 Condition Prompts SEI E sud ect o sa sb beso E EOIS ESPESORES EE 33 SYSTEM FAILURE CODES de ue Ebene et aasarin 34 COMMONLY ASKED QUESTION cccccsssssssscccccsccccccssssescccsssssssccocssccccccssssccsccsssssssoooosses 35 REPAIR AND MAINTENANCE 37 ACCESS COVER REMOVAL 37 INSTRUMENT COVER REMOVAL eto Fa eo eoa aaa o aaa aseo v eap EE veg nana ru 38 TO INSPECT THE FILTER AND TUBING ieececiesseetvees3vvendeceeweseecosceaiyeceeseuveu e souEe vesasosuo 38 Q How do I change the cecsccdsccessecssevavecsucessscssecaccensteasatetseseadvaceeccescovasecessusvetedecssseveee 39 Q How Do I Replace a Contaminated Sensor Block eee ecce eee esee eene eeuue 40 Q How do I Adjust the Dry Air Flow LLeeeee eee e eee e eee e eene eee eee ee eee eee e eaaet ettet eese e eese eeu 41 Q How I set up the Computrac VAPOR PRO to use 43 AZI SP150 or SCI SAS00 digital balance c ecco et oou eee eoa o Ioa ese2. 5 4 3 3 5 6 If you plan to use printer electronic balance and or computer connect them to the marked connectors at the back of the instrument The accessory keyboard connects to a fitting on the side nearest the printer connector of the instrument Power control and fuses are located at the rear of unit The power entry module must be configured for the voltage supplied to it This will be either 100 to 120 VAC or 220 to 240 VAC window shows either 110V 120V or 220V 240V Countries using 100 VAC will use the 110 120V setting The unit is configured at the factory for the destination country at time of shipment However to ensure the unit is configured correctly for 110V 120V 220V 240V your application verify the rating 15 correct on the power entry module on the rear of the instrument Voltage setting appears Page 11 CAUTION Never use any power cable other than the one provided or of equivalent UL listed ratings Be sure that the ground pin of the power source is properly grounded Never cover the power receptacle so that the power cord cannot be removed quickly and easily 5 7 Connect the instrument line cord into the matching port on the back of the instrument 5 8 Connect the plug end of the cord into a dedicated 15 Amp line source of the voltage for which the power entry module is set 100 to 120 VAC or 220 to 240 VAC 5 9 Toggle the power switch at the rear of the uni
3. Set up the instrument to print to the RS 232 port Setup Menu External Printer Setup Goto Setup Menu Report Setup Report Control and select text output Set up the computer to receive text information into its serial port at 9600 baud no parity 8 data bits and 1 stop bit 9600 N 8 1 Windows Terminal or Windows 95 HyperTerminal are good choices for this purpose DOS users should use ProComm or Terminate or equivalent utilities Consult the documentation for your communications program for details on how to save input data to a file Goto the menu showing the print features and select print Memory Start Menu Print Memory Starts Calibration Menu Print Cal Reports gt Diagnostic Menu Print Exception Report Q How do I print to a printer A To print test results or stored data Connect the printer to the parallel port on the back of the instrument Use the accessory printer from AZI or a standard PC graphics printer and cable Make sure the printer is supplied with paper the printer power is on and the printer 15 on line Goto Setup Menu and External Printer Setup Select the Printer Type and LPT port Goto Setup Menu Report Setup and Report Control Select text output Goto the screen showing Print and select the report to be printed Page 36 17 REPAIR AND MAINTENANCE Routine maintenance consists of checking the filter for clogging or contamination checking the needles for c
4. gt Tighten the lock nut newer instruments gt Locate the flow regulator that is mounted to the right of the display gt Loosen the lock nut on the adjustment screw and slowly adjust the hex head screw on top of the inlet flow regulator CLOCKWISE or COUNTER CLOCKWISE until the FLOW IN indicates 75 mL min gt Tighten the lock nut e Esc to the MAIN TEST SCREEN e Turn the instrument off e Remove the power cord from its socket e Replace the Instrument cover access cover and power cord e Turn the instrument on e The instrument is ready for normal use Page 42 Q How I set up the Computrac VAPOR PRO to use the AZI SP150 SCI SA800 digital balance A Follow the steps below Beginning at the Starting Screen select the prompts in order Main Setup Ext Balance setup Select Balance Driver Select the AZI SP150 or SCI SA800 according to the balance you have Select Quit Select Accept Select Tare Mode Fixed Bottle Weight if all sample bottles weight the same or the same bottle is used again Manual Bottle Weight if all bottles are pre weighed by hand Weigh Empty Bottle if the balance is to tare weigh each bottle before it 1s filled with sample Escape ESC to the Ext Balance Setup Menu SETUP MEHU CLOCK SETUP ExT BALANCE SETUP ERIT PRIHTER SETUP REPORT SETUP ACCESS KEY SETUP Esc HT Fe M Down EST
5. Analyzer There are no user serviceable parts or adjustments inside the unit Any maintenance inside the unit is to be performed by factory trained technicians only Any unauthorized inspection and or maintenance of the VP Series Moisture Analyzer will void the warranty Prevent excess heat build up around the analyzer e When setting up the moisture analyzer leave enough space to prevent heat from building up and to keep your analyzer from over heating Leave 20 cm about 8 inches around the moisture analyzer and 1 meter about 3 ft above the unit e Do not put any flammable substances on under or near the right side of the moisture analyzer The area around the Temperature Calibration Interface opening may reach the temperature of the oven e Use extreme care when handling the discharged sample bottle Although the bottles may cool rapidly they are still very hot when the transport removes them from the oven HAZARDS FOR PERSONS OR EQUIPMENT POSED BY USING SPECIFIC SAMPLES Flammables explosives substances that contain flammables explosives solvents and or substances that release flammable or explosive gases or vapors during the drying process e If flammable or explosive liquids are tested the gasses escaping through the back of the unit are still dangerous when they are exposed to the atmosphere Fume hoods may offer partial protection but the potential danger will still be present The user shall be liable and responsi
6. BALANCE SETUP om SELECT BALANCE DRIVER SELECT TARE MODE CHECK BALANCE COMM Esc ETT RUNI PT SELECT TARE MODE FIRED BOTTLE WEIGHT MANUAL BOTTLE WEIGHT WEIGH EMPTY BOTTLE Esc Select Up Down Connect the cable between the Computrac VAPOR PRO Balance Input and the balance RS 232 Connector Turn the balance power on and wait for the ready indication Select Check Balance Comm on the Ext Balance Setup Menu gt Select Go and wait for communication to be established gt If the check is bad verify each step above If the check indicates good communication a weight will be shown on the Computrac VAPOR PRO display If the check is good press Esc until the Main Test Screen is displayed If not recheck the cables and setup conditions Esa TERNAL BALANCE CHECK TURM BALANCE MAKE SURE COMM CABLE 15 COMMECTED PORT 1 HIT GO WHEN BALANCE IS READY ES TERNAL BALANCE CHECK CHECKING BALANCE COMM Page 43 These specifications are intended as a guide to proper use of the instrument Specifications and features will vary with application AZI product specifications are controlled by ISO 9001 procedures and are established and verified during design They are not to be construed as test criteria for every application Refer AZI document Number 4C04 0014 for current specifications controlling this instrument All specifications and features are subject to change without notice Periodica
7. Selct for ANALYZE STORED DATA e Highlight and Selct the desired results to be included in the statistics and e Press STAT to calculate Average Standard Deviation and Coefficient of Variation gt The average should fall within 5 of the capillary tube s calibrated value gt If the mean result does not fall within the 5 range perform the sensor calibration below Page 16 8 14 8 15 8 16 8 17 8 18 8 19 8 20 8 21 8 22 The Relative Humidity Sensor is calibrated using the same technique as for the calibration check The difference is in what happens to the results The calibration calculation may be used to calibrate the sensor whereas the check calculation is only for information Therefore the first portion of the sensor calibration is like the calibration check Some part numbers of items used during the test and calibration are given below for reference e Sample Bottle 990 0064 e Septa Sample Bottle 990 0074 e Capillary Tubes 1 0 Microliter 100 bottle 990 0150 Carefully remove a 1 0 Microliter Microcap AZI P N 990 150 from the storage bottle Use forceps tweezers to handle the tube Just touch the end of the tube into purified or de ionized water Tube must be in contact with the water long enough to fill If the tube is not full the reading will be low Pull the capillary tube straight up out of the water A rapid but straight motion will tend to remove excess water from
8. Select Stored Data if this instrument 15 not 21 CFR Part 11 compliant from the Main Menu Select Analyze Stored Data e Select the test results you want to analyze and e Press Calc If this is 21 CFR Part 11 compliant instrument all readings must be recorded by hand AZI recommends using a printer to capture the values The calculations must be performed on a calculator since the instrument s storage and analysis functions are disabled Mean Standard Deviation and Coefficient of Variation are calculated using the following formulas Mean total of results divided by number of results m 2 Standard Deviation LM n e Coefficient of Variation Standard Deviation divided by Mean times 100 Page 25 12 RUN MOISTURE TEST 12 1 Tare a clean empty sample bottle including the septum and cap 12 2 Based on the expected moisture content of the sample determine optimum sample size using the chart on page 25 However do not fill the bottle over full so that sufficient carrier gas may flow and pick up evolved moisture 12 3 ENSURE the slick side of the septum is to the inside of the bottle 12 4 Weigh the loaded bottle and record the weight of the sample TIP The accessory balance AZI P N Y990 0082 eliminates possible transcription errors when entering the sample weight It is also faster than manually taring and weighing the sample 12 5 Press START 12 6 When prompted enter the
9. attachment in precision and accuracy The analyzer does not utilize reagents minimizes consumables and 15 simple to operate Principles of Operation The Computrac VAPOR PRO heats a sample of test material in a septum bottle Evolved volatiles are passed to an analysis cell where the moisture content of the flowing gas 15 measured A microprocessor integrates the varying moisture signal and converts the signal to micrograms of water for display Results are available in parts per million percent moisture or total micrograms of water Arizona Instrument s innovative prediction algorithm automatically terminates the test in just minutes when sufficient information 15 collected to allow accurate determination of the sample s moisture content The heating range of the Computrac VAPOR PRO is 25 C to 275 C Test parameters such as sample size heater temperature and test ending criteria can be altered to optimize speed and accuracy Performance Designed for either lab or production floor use the Computrac VAPOR PRO Moisture Analyzer uses patented state of the art technology specifically designed to provide accurate and precise results in a timely manner This ensures that product quality is achieved and maintained The Computrac VAPOR PRO stores programmed memory settings for up to eight materials and on 21 CFR Part 11 non compliant instruments retains the data from the last 30 sample test runs The software automatically calculates the
10. by qualified persons who are familiar with the properties of the sample being analyzed e Ensure before getting started that the voltage rating printed on the manufacturer s label is identical to your local line voltage see the section beginning on page 11 The VP Series Moisture Analyzer is provided with a power cord that has a protective grounding conductor Do not operate the unit without the supplied three wire power cord or an identical recognized equivalent that meets all applicable standards e AZI does not recommend the use of an extension cord However if one must be used use an extension cord that meets all applicable standards and has a protective grounding conductor e not remove the protective grounding wire from the power supply circuit e With the power switch off power is still applied to the power entry module Disconnect the power cord from the instrument to ensure complete power removal e Position the power cable so that it cannot touch any hot areas of the moisture analyzer Page 4 e Use only AZI supplied accessories and options with VP Series Moisture Analyzers or check with AZI before using any third party accessories such as printers and analytical balances to verify compatibility e fthere is visible damage to the VP Series Moisture Analyzer or its power cord unplug and isolate the unit first and then call Customer Service Do not open the analyzer housing of the VP Series Moisture
11. changes to Next e Press Next the graph changes to display the rate at which moisture is passing over the sensor Further pressing Next will now toggle between the two graphs To return to this Main Test Screen press Esc Page 27 The Menu Key brings up screen showing the following options MEMORY START MENU MEMORY START MENU STORED DATA MENU CALIBRATION MENU SETUP MENU DIAGNOSTIC MENU MAIN MENU STORED DATA MENU CALIBRATION MENU SETUP MENU DIAGNOSTIC MENU Down am Esc Select MEMORY START MENU ADD EDIT MEMORY START REORDER MEMORY START PRINT MEMORY STARTS Esc Selct Down STORED DATA MENU UIEW STORED DATA ANALYZE STORED DATA REORDER STORED DATA DELETE STORED DATA Esc ESEJ Down CALIBRATION MENU M AA H PERFORM RH SENSOR CAL d EDIT SYSTEM CAL CONSTANTS UIEU CALIBRATION STATUS PRINT CAL REPORT Esc Selct Down SETUP MENU url CLOCK SETUP EAT BALANGE SETUP EAT PRINTER SETUP REPORT SETUP ACCESS KEY SETUP Esc Selct Down DIAGNOSTIC MENU VIEW SYSTEM SENSOR STATUS MANUAL FLOW CONTROL MENU UIEW SYSTEM ESCEPT IONS PRINT EACEPTION REPORT Use the and V arrow keys to scroll through the selections Use the lt and gt arrow keys to Escape or Select your choice Page 28 Memory Start Menu ADD EDIT MEMORY START A lis
12. net sample weight and insert the bottle The system will purge the bottle for 45 seconds The sensor will again zero and the test begins For some applications this bottle purge time may need to be reduced If the expected results are not obtained after other parameters are adjusted call AZI Customer Service for advice on how to reduce bottle purge time An audible beep will sound when the instrument has completed the test Use the table on page 25 and the FINAL moisture reading on the display to adjust the sample size to optimize test time repeatability and accuracy Page 26 In the idle state the Main Test Screen displays menu access keys at the bottom From left to right they are e Memry key for accessing stored memory start selections e Menu key for accessing the Main Menu and Graph key changes the display to a graph of the test s collected moisture and rate information Use the soft key buttons below the display to make your selection 0679 1 20 TIME 68 83 82 TEST skafi MEMRY SELECTS PRESS MEMRY Current sensor status Nu programed oven temperature To select another set Menu Graph of stored test parameters T A To view test s graphical data To access Main Menu options Figure 5 Main Test Screen The Graph key will switch the display to the graphical displays e Press Graph the Total Moisture Graph appears and the name above the arrow button
13. sets to another location using the cut and paste method e DELETE STORED DATA Facilitates deletion of selected data sets Selection by line date or all items VVVVVV Page 29 Calibration Menu Page 30 PERFORM RH SENSOR CALIBRATION A program to be used carefully and only when required to calibrate the moisture sensor This selection uses stored data sets and calibrated microcapillary tubes to calculate and execute the automatic adjustment of the instrument The result is a stored parameter Cal Constant and may be viewed in the Edit System Calibration Constants menu EDIT SYSTEM CALIBRATION EDIT SYSTEM CAL CONSTANTS CONSTANTS This selection allows the entry of RH SENSOR U75 3 168 U SYSTEM CAL 168 The two sensor constants RH Sensor VO and V75 found on the sensor PCB and entered when a sensor block 15 replaced gt The calculated offset value entered by the instrument during a RH Sensor Calibration This value should only be changed by the instrument as a result of a sensor calibration VIEW CALIBRATION STATUS This selection allows review of gt The criteria used for RH Sensor calibration gt RH Sensor adjustment status and gt Flow Rate Sensor calibration PRINT CAL REPORT Prints all available calibration status reports CLOCK SETUP Sets the internal clock for the correct time and date EXT BALANCE SETUP Selects the type of external balance AZI SP150 or SCI SA80 Selects
14. statistics of any selected stored data upon demand All retained test data can be automatically sent to an external printer or personal computer at the end of a test or on request NIST traceable 1 0 ul capillary tubes are provided in the accessory kit which permit quick and easy system verification System calibration is checked in just minutes Re calibration is a menu driven procedure to assure accurate and reliable results day after day Built in self diagnostics constantly monitor system conditions to detect and report any abnormalities 1n the hardware software moisture sensor or flow system Page 6 The Computrac VAPOR PRO utilizes a cylinder shaped bottle heater a dry air carrier gas flow system and a moisture sensor The instrument heats a sample of test material contained in a 25 ml milliliter septum bottle Volatiles driven from the sample are carried by the air system through the Sensor Block containing the Relative Humidity RH sensor The RH sensor used to detect water in the gas stream 15 a polymer capacitor relative humidity sensor The reading from this sensor is combined with sensor block temperature and carrier gas flow rate in a microprocessor to generate an accurate measurement of the moisture content in the sample The instrument then displays the result in terms of Parts per million ppm Micrograms ug H20 or Percentage 90 H20 Regulator Dry Air In Dry Air Out Moisture Data to M
15. the dry air gas source at the back Unplug the power cable Remove the cover See ACCESS COVER REMOVAL on page 37 gt Notall instruments use a filter but if it is used it is visible at right center above the Sensor Block e Disconnect the air flow tubes which come from the rear of the instrument exhaust and inlet tubes from the Sensor Block Filter Exhaust Tube Needle to When the Sensor Block is cool to the touch separate the two halves of the Sensor Block heater connector visible to the left of the Sensor Block e Disconnect the Sensor Connector located below the heater connector on the front left side of the Sensor Block Page 40 Usea 3 8 open end wrench to back the needle out of the sensor block Slide the needle into the needle seal far enough for the needle to clear the sensor block Remove the two 8 32 Phillips Screws holding the sensor block to the mount and remove the sensor block e Set the removed sensor block aside Unpack the replacement sensor block and install it by reversing the procedure above e Replace the top cover connect the dry air gas source and the power cable Turn the instrument on and wait a few minutes for it to warm up Goto the diagnostic menu and check the Flow In rate gt If different from the original Sensor Block s Flow In by more than a 10 percent there may be a leak Check the tubing fittings filter Luer fitting and needle for secur
16. the side of the tube Excess moisture on the side of the tube will cause a high reading Visually verify that no free water is on the outside of the tube Wipe the tube only if necessary with a finger or other non absorbent instrument DO NOT WIPE THE TUBE WITH A TISSUE OR OTHER OBJECT THAT WILL SOAK WATER OUT OF THE CAPILLARY TUBE Gently place the tube into a dry sample bottle just past the bottle s neck as shown Dropping or shaking the tube will cause water to be lost and will give erratic readings over several tests Place a dry cap and septum with shiny side inside on the sample bottle Gently place the sample bottle onto the transport so that the tube rests toward the neck of the bottle as shown Page 17 8 23 8 24 8 25 When READY TO TEST is displayed on the Main Test Screen SELECT IN ORDER e Memry SENSOR CAL e Press START Accuracy of results should be within the five 5 percent of the capillary capacity of 1000 microgram 950 to 1050 ug Allow the test to proceed until completed It should take five to seven 5 to 7 minutes NOTE At least five 5 tests are required for the proper analysis and correction factors to be calculated If five valid results are not available repeat the tests until they are available 8 26 8 27 8 28 8 29 8 30 When the instrument again indicates READY TO TEST prepare another capillary tube and sample bottle and press
17. the tare mode Fixed weight manual bottle weight entry or balance entry Tests the communication link between the instrument and balance EXT PRINTER SETUP Selects the type of printer used and the data output port RS 232 LPT or both REPORT SETUP Report Control specifies When the report is to be printed off start of a test end of a test Selects the output format text or spreadsheet Specifies the reporting interval in seconds Turns on or off the end of line automatic formfeeds Selects which graph to print both rate result none and Turns lot number recording on or off Report Content includes or excludes particular items of information in the report These items are Memory Start Number Memory Start ID Lot Number Product ID lest Date Time of Day Final Result ppm or 90 Final Mass micrograms H2O Ending Criterion Sample Weight Test Time lest Temperature Ending Rate micrograms sec at end of test Peak Rate Peak time lau Flow In Sensor Block Background System Background Edit Company Name is the company name that prints on the header line of the report This 22 character entry may be changed to reflect the customer s company or department ACCESS KEY SETUP Allows entry of the passwords used to prevent unauthorized alteration of stored parameter sets or stored data sets The master key controls all functions The Params key controls memory start parameter
18. Arizona Instrument COMPUTRAC VAPOR PRO MOISTURE ANALYZER USER MANUAL July 2003 Arizona Instrument LLC 1912 W 4 Street Tempe AZ 85281 USA 800 528 7411 602 470 1414 Fax 480 804 0656 http www azic com email aziQ azic com General intl azic com International support azic com Customer Support 700 0049 001 Rev B Computrac VAPOR PRO PROPRIETARY RIGHTS NOTICE The material in this manual contains valuable information developed by Arizona Instrument LLC for use with the Computrac line of moisture analyzers No part of this manual can be reproduced or transmitted in any form or by any means electronic mechanical or otherwise This includes photocopying and recording or in connection with any information storage or retrieval system without the express written permission of Arizona Instrument LLC ALL RIGHTS RESERVED Copyright 2001 2002 2003 Arizona Instrument LLC Page 2 WM I um m 10 1 12 15 14 15 16 17 18 Table of Contents WARNINGS AND SAFETY INFORMATION eee eee eee ettet teet e eese esee enn 4 INTRODUC TION PESE EN 6 PRINCIPLES OF OPRERA TION ca cscesstencisececcccacntencsiicscsadsictanccckdasectccsdeceddecassadssudesacsedecuctsssdouctieuies 7 UNPACKING ee es 8 INSTALLA HON osse CD e 9 CHECK SENSOR STATUS i ueuicsceni eiae a DE see E He 13 DRY NESSSDEST iie
19. C Computrac VAPOR PRO Moisture Analyzer User Manual Part Number 700 0049 001 Revision B July 2003 If you have any questions regarding the operation of this instrument contact Arizona Instrument Customer Service You may call our toll free number from the US and Canada 800 528 4711 Our fax is 602 804 0656 Internationally or in the Phoenix area call 602 470 1414 If you prefer the internet contact Customer Service at the Arizona Instrument web site http www azic com or e mail direct at support azic com Arizona Instrument LLC 1912 W 4th Street Tempe AZ 85281USA http www azic com email aziQ azic com General intl 9 azic com International support azic com Customer Support Page 46
20. IAGNOSTIC MENU highlighted MANUAL FLOW CONTROL MEHU l l VIEW SYSTEM EXCEPTIONS 6 5 Press Selct again to view the Sensor Status PRINT EXCEPTION REPORT Screen 6 6 Ifthe flow rate is not at 75 5 mL Min milliliters COC per minute go to Q How do I Adjust the Dry Air FLOW IN 075 mL Min Flow on page 41 BLOCK RID H68 C BOTTLE RID H51i C RH RID H72 C 6 7 Return to the Main Test Screen by pressing Esc ELM HUE xg L three times Page 13 2 DRYNESS TEST For all tests using a bottle ENSURE the slick Teflon side of the septum is to the inside of the bottle or the moisture trapped in the septum will cause false moisture indications 7 1 When the display on the Main Test Screen indicates ADD EDIT MEMORY START Ready to Test press and or select in order BB RH SENSOR e Memry e DRYNESS TEST Select Up Down 7 2 PRESS START e This test will run for 2 minutes to test for eC EERE 100 8 TEST DRYMESS TEST moisture that may have migrated into the CURRENT BBBB B8 pg H20 system TOTAL 000 08 pg H20 If this is the first test after changing a portion of the flow system tubing needle filter etc or 1f the result is more than 5ug repeat the Dryness Test up to four 4 times T Sensr Graph Quit e If the result does not fall under 5ug after the 4th test Check for moisture in the dry air supply line gt Check and or change the hydrophobic fil
21. Quit followed by Accept Page 21 To Select Programmed Test Temperature Determining the Test Temperature gt Generally use the highest temperature possible without causing other undesirable conditions such as melting or excessive release of other volatiles The instrument is relatively insensitive to the exact temperature used Too low a temperature will result in long test times and possibly low results gt In most cases it is important that the sample not melt A melted sample may form an impermeable skin and trap moisture producing a low result The following guidelines will help gt If you have another moisture determination method reference method set the test temperature to the same temperature as used in your reference method gt If the melting temperature is known use a temperature 10 or 20 degrees lower e To program test temperatures Highlight the Temperatures on the Edit Memory Start Menu Press Selct then Edit Use the lt and gt arrow keys to move the cursor s position left and right to the digit to be changed Use the and V arrow keys to scroll through the numbers When complete press Quit followed by Accept To Select Units for the Final Result Display Highlight the Result Display Option line e Press Selct then Edit gt Usethe and gt arrow keys to scroll through the options e Select Either Percentage of water Parts per million ppm of water o
22. ST Start the test and press GO Periodically examine the rate graph display to see if the moisture rate 15 falling gt Normally the rate will begin to decline after 30 seconds and eventually will fall to less than 1 ug sec at which point testing can resume gt If the moisture rate remains at a very high level until the end of the test a source of water 15 present in the system and must be removed before the system will dry out Page 35 What about interferences A The only known interference is from methanol and acetone Samples containing methanol or acetone should never be used Never use methanol or acetone as a cleaning agent with the Computrac VAPOR PRO Use isopropyl alcohol Why do my tests sometimes end in less than 2 minutes A Thisis usually caused by an inappropriately large rate ending criterion value or small sample size When using the rate ending criterion you entered a rate value to end on If the sample moisture 15 very low or the sample 15 too small the peak rate may never exceed the ending rate and the instrument concludes that the test is over To rectify this use a larger sample a lower ending rate value See To Select How to End the Test beginning on page 22 Q How do I transfer stored data to a computer file A This is not available on 21 CFR Part 11 compliant instruments To store archival information from non compliant instruments to a computer text file
23. START at least four 4 more times or until a total of five test results When five tests results are available press Menu and the Main Menu Screen appears e Select Calibration Menu e Select Perform RH Sensor Calibration e Press Selct Down and Selct to select all calibration tests to be included in the calculations e Press Cal The screen will display the calibration water mass Use Edit to change the value if necessary to read 1000 0 which 15 the value of the capillary tube in grams 1 0 ul 1000 ug e Press Go The screen will appear listing the calculated data and calibration factor e Press Accpt to save the new calibration constant The new calibration constant will remain in memory until the next sensor calibration is performed The RH Sensor Test runs used for this calibration will be automatically deleted so they will not be used for the next calibration Press the Esc key twice and the Main Test Screen appears Perform at least one more calibration check to verify the accuracy of the calibration Page 18 TIP The temperature calibration and verification take approximately 5 hours If time 15 critical the process can be completed in approximately four hours by running the verification portion manually and opening the lid to cool the unit between the calibration and the verification Parts Required in addition to the Vapor Pro Amt AZI Part Number Description Temperature Calibration Kit w
24. VER REMOVAL on page 37 gt Not all instruments use a filter but if it is used it is visible at right center above the Sensor Block e Examine the filter and Tygon tubing If a deposit or discoloration is observed in the flex tubing between the filter and the Sensor Block the filter and tubing should be replaced and the entire sample flow path cleaned with isopropyl alcohol IMPORTANT Never use methanol for cleaning any part of the instrument Methanol interferes with calibration of the RH sensor and is very difficult to remove from the flow system Page 38 When used the Hydrophobic Filter on top of the Sensor Block must be replaced if it becomes contaminated Replace it only with the Hydrophobic Filter available from Arizona Instrument AZI Part No 990 0059 Before replacing a filter it is good practice to flush the new filter with dry carrier gas to remove moisture adsorbed to the interior of the filter After replacing the filter on its holder replace the top cover before connecting the instrument to its power source Turn the instrument on and when READY TO TEST appears run the dryness test procedure outlined on page 14 using a clean dry empty sample bottle When this procedure ends the system 15 ready for usc How do I change the filter A First obtain a replacement Hydrophobic Filter AZI Part Number 990 0059 One filter was contained in the accessory kit If it has been used call AZI Cus
25. aking the tube will cause water to be lost and will give erratic readings over several tests 8 6 Place a dry cap and septum with shiny side inside on the sample bottle 8 7 Gently place the sample bottle onto the transport so that the tube rests toward the neck of the bottle as shown Page 15 8 8 When READY TO TEST is displayed on the Main Test Screen SELECT IN ORDER e Memry e RH SENSOR CAL e Press START 8 9 Accuracy of results should be within the five 5 percent of the capillary capacity of 1000 microgram 950 to 1050 8 10 Allow the test to proceed until completed It should take five to seven 5 to 7 minutes 8 11 If desired perform four more calibration tests and calculate the statistics If this is a 21 CFR Part 11 compliant instrument all readings must be recorded by hand AZI recommends using a printer to capture the values The calculations must be performed on a calculator since the instrument s storage and analysis functions are disabled 8 12 Mean Standard Deviation and Coefficient of Variation are calculated using the following formulas Mean total of results divided by number of results 2 Standard Deviation n e Coefficient of Variation Standard Deviation divided by Mean times 100 8 13 After the fifth test press Menu for MAIN MENU Press Selct for STORED DATA MENU Not available in 21 CFR Part 11 compliant instruments e Press
26. ams Expected Moisture Example Expected Moisture 15 0 0590 Maximum Sample 0 1 05 2 0 grams Page 24 The following table gives general guidance for the selection of sample size for various expected moisture levels Note that the maximum sample size 15 also limited by the sample bottle Do not fill the bottle over half full This will normally be about eight 8 grams for the sample bottle used with the Vapor Pro Table Sample Size Expected Moisture Use 001 015 or 50 150 ppm 5 8 grams 015 035 or 150 350 ppm 2 5 grams 035 075 or 350 750 ppm 1 2 grams 075 150 0 5 1 gram 150 350 0 2 0 5 gram 350 750 0 1 0 2 gram 750 1 5 0 05 0 1 gram These are only guidelines Experiment with your sample to refine the size estimates to achieve your desired speed and accuracy Note that if you are using a rate ending criterion and the peak moisture rate 15 less than five 5 times the rate threshold the sample sizes should not be allowed to vary more than about 10 Larger variation of sample size will lead to a larger variation of results For your particular application call AZI Customer Service at 800 528 7411 or 602 470 1414 for assistance 1n developing specific parameters After determining the optimum test parameters repeat the test once to confirm the results For performance data run 3 to 5 tests and use the following steps to determine the statistics
27. atures moisture shocks blows or vibration UNPACKING THE MOISTURE ANALYZER e After unpacking the moisture analyzer check it immediately for any visible damage as a result of rough handling during shipment Save the box and all parts of the packaging to use when returning your moisture analyzer for calibration Only the original packaging provides the AZI recommended protection for shipment Before packing your moisture analyzer for shipment unplug all connected cables to prevent damage during transit WARNING SYMBOLS ap Protective Ground Identifies the connection on the Chassis and Power Inlet Module for connection of the safety ground green yellow wire Warning Information or procedure that must be observed gt Electrical Shock Hazard Observe all steps of the procedure to prevent electrical n D C S Warning Hot surface or area of possible severe burns Use listed precautions when opening the oven lid and handling samples to prevent injury Page 5 2 INTRODUCTION Arizona Instrument is proud to continue its leadership roll in developing new technology for the moisture analysis industry The Computrac VAPOR PRO 15 a giant step forward in the measurement of very low moisture levels A revolutionary moisture analyzer with a detection limit of 10 ppm the Computrac VAPOR PRO uses a sensor based technology and correlates to the Karl Fischer coulometric titration method with an oven
28. ble for any damage that arises in connection with the VP Series Moisture Analyzers and potentially harmful substances e Substances containing toxic caustic or corrosive substances may be analyzed with the unit in an appropriate fume hood only The fume hood must keep the work area below the lower toxic limit established by appropriate standards Substances that release caustic vapors such as acids should be analyzed in the smallest sample size possible to still achieve satisfactory results If vapors condense on the VP Series Moisture Analyzer s housing parts stop the testing wipe the surface clean with a suitable neutralizer and place the unit in a fume hood capable of removing the vapors The flow system in the instrument is composed of aluminum and brass fittings connected with Tygon formulation 2075 tubing Check for compatibility of substances to be tested before inserting them into the instrument user has the responsibility for carrying out appropriate decontamination if hazardous material 15 spilt on or inside the VP Series Moisture Analyzers CLEANING e Clean the VP Series Moisture Analyzers according to the cleaning instructions only Use of strong detergents and oven cleaners will damage the case and heater housing e Before using any cleaning or decontamination method except those recommended by Arizona Instrument check with AZI Customer Service at 1 602 470 1414 or 1 800 528 7411 to ensure that t
29. c ee eo tei rH od teorico 14 RH SENSOR CALIBRATION TESTS elero ERR TY e PUE E Noe Coe e iilos 15 Calibration 15 Sensor I TT 17 TEMPERATURE CALIBRATION 19 RUNNING MOISTURE VES US Ganid icas eode esea R dLa Caii 21 Select Test Senos sisone aa ES 21 To Enter Material Namie scscccssecs iste lecsccictecdcatedesicsscteedeatedatiiaiwaneductedevssacedeodiesedateesseassductedsccusoeass 21 To Select Programmed Test Temperature ecce ecce eee eee eee eee eee ee teet ettet eese esee e eoa 22 To Select Units for the Final Result Display ce e e e ee rete ee e eee ee eee 22 To Select How to End the ela eodera ad eh Ee eR oe dope a Coe 22 To Select Sample Weight Entry Method ccce eee eee eee eee ee eee eee ee etes eese eese ee eeeee 23 To Select Bottle Purse tonii Iti E t EE eo e EE E EE o ITE 23 DETERMINE OPTIMUM PARAMETERS eee eene eene een tree tete tette eese eese eese 24 RUN MOISTURE TEST eve eiusevi cene onbucieses eeto deside v eee ive bu des 26 VAPOR PRO MENU SYSTEM ccsssssssssssssssssscsecsscassessecsecsscasenseassees 27 Memory Sare MeN ET
30. d fax it to AZI Customer Service at 480 804 0656 to assist in diagnosis of possible system failure PRINT EXCEPTION REPORT Prints the stored list of instrument diagnostic exceptions To assure proper performance your Computrac VAPOR PRO uses an intelligent self diagnostic system to detect any problems in the hardware software sensors or flow system Operating abnormalities and fault conditions will result in system failure codes or condition prompts They will be recorded in the Exception Reports table Condition Prompts Condition prompts indicate operating conditions that prevent starting or completing a moisture test Following each condition prompt are possible causes and recommended solutions 14 1 INPUT CARRIER GAS FLOW LESS THAN 40 mL Min This prompt appears when the carrier gas flow into the instrument falls below the specified rate Flow sensor failure Call Arizona Instrument Blocked Needle Check that bottle septum 15 not blocking needle port RH SENSOR WAS NOT READY This is a normal condition between tests indicating the drying or zeroing of the sensor If the condition persists for more than a few minutes then Possible Cause Recommended Solution Flow system contaminated Locate and eliminate contamination System unusually wet Wait for system to dry Wet source gas Install change external desiccant chamber BALANCE COMM FAILURE This prompt indicates that the selected memor
31. ding Method Page 44 Time user adjustable Prediction Accessory 1 1 10 100 1 Power Cord Available in three plug styles for 100 120V or 220 240 V Tygon 2075 Tubing 1 8 X 1 4 Tweezers Vapor Pro User Manual Filter LL Disc Sample Bottle Septa Sample Bottle Ct 3000 1 0 Microliter Microcaps Inline Desiccator Kit Optional Accessories 101 key PC keyboard Travel case Digital balance with cable and Communications Software PC graphics printer Dry Air Generator Warranty Instrument is warranted for two years against defects in material or workmanship Consumable and routine maintenance are not included in the warranty Contact Customer Service for AZI annual maintenance contract information US Patent No 5 712 421 Other US and Foreign Patents Pending US and Canadian Underwriters Laboratory European Communities CE Y990 0139 200 0002 US CANADA 345 0050 690 0012 700 0023 990 0059 990 0064 990 0074 990 0150 Y990 0116 990 0088 990 0092 Y990 0082 Y990 0098 Y990 0143 Arizona Instrument LLC is an ISO9001 Registered Company 200 0003 England 200 0008 Europe Page 45 TRADEMARK AND COPYRIGHT PROTECTION Computrac Arizona Instrument the stylized AZI and VAPOR PRO are all registered trademarks of Arizona Instrument LLC Instrument firmware is copyright protected Copyright 2001 2002 2003 Arizona Instrument LLC Rights Reserved Arizona Instrument LL
32. eoe rong te 43 APPENDIX A SPECIFICATIONS AND RATINGS ecce eee eere eee eee eese eesessssssss saos 44 Page 3 1 WARNINGS AND SAFETY INFORMATION The VP Series Moisture Analyzers comply with the Underwriter Laboratories Inc standards and European Council Directives for Electrical Equipment for Laboratory Use electromagnetic compatibility and the stipulated safety requirements However improper use or handling of instrument can result in damage to equipment and or injury to personnel The VP Series Moisture Analyzers are identified as Equipment Class I Pollution Degree 2 and Installation Category II Read this manual thoroughly before using your moisture analyzer to prevent damage to the equipment Keep these instructions in a safe place An up to date electronic copy of this manual can be found at the AZI web site at http www azic com The following instructions will help to ensure safe and trouble free operation of your moisture analyzer e Use the moisture analyzer only for performing moisture analysis of samples Any improper use of the analyzer can endanger persons and may result in damage to the analyzer or other material assets Donotuse this moisture analyzer in a hazardous area location operate it only under the ambient conditions specified in these instructions e Although the moisture analyzer is simple to operate and is very user friendly it should only be operated
33. g criterion and the peak moisture rate 15 less than five 5 times the rate threshold the sample sizes should not be allowed to vary more than about 10 Larger variation of sample size will lead to a larger variation of results For your particular application call AZI Customer Service at 800 528 7411 or 602 470 1414 for assistance 1n developing specific parameters To Select Sample Weight Entry Method e Highlight the Sample Weight Entry line e Press Selct Manual Weight Entry This method is used when a the sample weight 1s measured with a precision balance The program waits at the start of a test until the sample weight in grams 1s entered Weights are accepted from 00 0000 to 99 9999 erams Digital Balance This method 15 used when a digital balance 15 connected to the instrument and the weight 15 communicated directly from the balance to the instrument Fixed Sample Weight This method 15 used when all samples are of the exact same weight for accurate moisture analysis or close enough to an average value for approximate moisture analysis The program will wait until a fixed weight value 15 entered To Select Bottle Purge Control e Highlight the Bottle Purge Control line e Press Selct then EDIT The bottle purge time 15 the time dry carrier gas flows through the sample bottle before a test begins A value of 000 will disable the bottle purge Any number other than 000 will adjust the purge time to that number of seco
34. he proposed method will not damage the equipment e The outside housing of the VP Series Moisture Analyzers should be cleaned with a mild household detergent such as 409 and a soft lint free cloth Paper towels should never be used as they will scratch the instrument s finish and the clear lens over the display If methods that are more stringent are required call AZI Customer Service at 1 602 470 1414 or 1 800 528 7411 for recommendations e Cleaning of the flow system components is normally a factory operation If components become contaminated follow the directions contained in this manual beginning on page 37 e Every precaution has been taken to prevent contaminants from entering the unit However if liquids or powders do enter the case call AZI Customer Service at 1 602 470 1414 or 1 800 528 7411 for recommendations The user shall be liable and responsible for any damage that arises in connection with the use this moisture analyzer ENVIRONMENTAL CONDITIONS Storage and Shipping e Temperature should be between 0 C to 40 C 32 F to 104 F e Relative Humidity should be between 10 and 80 OPERATIONAL CONDITIONS INDOOR USE e Optimum results will be achieved when the unit is set on a smooth level surface in a non condensing non explosive environment of 0 40 C 50 relative humidity and 0 31 C 80 relative humidity e Do not expose the moisture analyzer unnecessarily to extreme temper
35. icroprocessor mom om om Jp m m om mo uuum i 6 Figure 1 Computrac varor PRo Basic Flow System Test parameters such as temperature ending criteria and purge time can be changed to optimize test speed and accuracy See Appendix A beginning on page 44 for detailed specifications and operating limits Page 7 4 UNPACKING Unpack the instrument and locate the following items REQUIRED ITEMS Computrac VAPOR PRO Accessory Kit 1 3 1 10 Vial Power Cord varies with area Tygon 2075 Tubing 1 8 X 1 4 Tweezers Manual User Vapor Pro Filter LL Disc Sample Bottles Septa Sample Bottle 1 0 Microliter Microcaps 100 Vial Inline Desiccator Optional Items 101 key PC keyboard Travel case Digital balance with cable and Communications Software PC graphics printer Dry Air Generator AZI P N CT 3100 001 CT 3100 002 CT 3100 003 differences Y990 0139 200 0002 200 0003 200 0008 USA Canada England Europe 345 0050 690 0012 700 0049 990 0059 990 0064 990 0074 990 0150 Y990 0116 990 0088 990 0092 Y990 0082 Y990 0098 Y990 0143 If you are unable to locate any of the standard items or have questions regarding the optional accessories please contact AZI Customer Service at 800 528 7411 or 602 470 1414 Page 8 5 2 Place the Computrac VAPOR PRO on a solid level surface that is large enough to accommodate the instru
36. ith 9 VDC 100 mA 3 5 mm male plug positive tip DC Adaptor 1 Y990 0098 Graphics Printer with cable optional 1 Y990 0142 9 1 Install the Temperature Calibration Probe into the calibration port to the rear of and below the bottle ramp as shown 9 2 The probe must be inserted all the way in until the handle touches the case 9 3 Run the cable as shown to help hold the probe in place 9 4 Plug the probe interface cable into the matching connector on the cal box Plug the RS 232 interface cable into the matching connector on the cal box and the Scale Input on the back of the Vapor Pro Plug the AC adaptor into a 110 VAC outlet ithe irure ier LS LI PE ERE JI AH pana up rm ird e mum CE AZ MODEL CT 3100 y SER 45 14 188 77 Y B Ha NB OA ih 145 w 523 Page 19 9 5 Turn the Vapor Pro ON From the Main Test Screen press Menu to bring up the MAIN MENU Toggle down if necessary so that CALIBRATION MENU 15 highlighted press Selct At the Calibration Menu toggle down until TEMPERATURE CALIBRATION is highlighted press Selct 9 6 Highlight ENTER DEVICE DATA and enter the appropriate data for the interface serial number ENTER DEVICE DATA robe serial number and calibration certification INTERFACE HH123 P PROBE 44567 data CERT DATE 81 82 2082 e The interface and probe serial numbers and the certification date are l
37. ity Check that the tubing is pressed onto the fittings all the way and is not cracked e Once installed the Sensor Block and associated sensor must be calibrated gt Enter the two constants from the Sensor Block sensor PCB in the Edit Cal Constants Menu Perform the sensor calibration procedure Q How do I Adjust the Dry Air Flow A CAUTION A Line voltage is present under the instrument s cover Use care not to touch any components except those listed in the following procedure to prevent electrical shock A Follow the steps listed below e Verify the pressure of the carrier gas supplied to the instrument is between 20 and 25 psi e Unplug the power cable e Remove the cover See ACCESS COVER REMOVAL on page 37 e Remove the instrument cover See INSTRUMENT COVER REMOVAL on page 38 Page 41 From the MAIN TEST SCREEN select the CENSOR STATUS R following menus 30H x RH WS mL Hin MENU BLOCK RID 868 C BOTTLE RID H51 C DIAGNOSTIC MENU and RH RID 872 C H20 FLOW BBBH1 1 ug Sec VIEW SYSTEM SENSOR STATUS FLOW MODE LOW If FLOW IN is not 75 2 mL min adjust the pressure regulator There are two configurations of the flow regulator older instruments Loosen the lock nut on the adjustment screw and slowly adjust the screw on top of the inlet flow regulator CLOCKWISE to increase and COUNTERCLOCKWISE to decrease the flow until the FLOW IN indicates 75 mL min
38. list access 9 9 9 9 9 9 9 9 9 9 99 9 9 99 9 9 9 9 9 Page 31 Diagnostic Menu Page 32 VIEW SYSTEM SENSOR STATUS Displays SENSOR STATUS the current value of is E RH measured by the RH Sensor 468 C 051 6C Flow in rate in milliliters per minute RH RID H72 C Sensor Block temperature BLOCK ELOM MODE y i ug Sec RTD RTD stands for Resistive Temperature Detector and describes the solid state devices used throughout the instrument to measure temperatures Bottle heater temperature BOTTLE RTD RH sensor temperature RH RTD H5O flow rate in micrograms per second and Instrument flow mode usually standby when not performing a test and not in manual flow control MANUAL FLOW CONTROL MENU This menu allows manual control of the carrier gas flow mode for test and analysis of possible system faults There are three selections gt Off returns the system to automatic control of the flow state gt Sensor Drydown high flow through the needle Sensor Block and RH sensor for system drydown Standby normal flow through the needle Sensor Block and RH sensor VVV WV If any manually controlled flow state is used ensure the manual flow control is set to OFF before attempting normal operation If this is overlooked an error message will be appear on the screen VIEW SYSTEM EXCEPTIONS A list of up to 20 faults detected by the instrument diagnostic system Print the list an
39. lly contact Customer Service to see 1f any upgrades are available for your instrument Customer Service may be reached by phone at 800 528 7411 or 602 470 1414 If you prefer the internet contact Customer Service at the Arizona Instrument web site http www azic com or e mail direct at support azic com Dimensions Approximately 146 mm X 380 mm X 370 mm Weight Approximately 8 6 kg 19 Ibs 100 120 V 50 60 Hz 8 amps maximum or Power Ratings Special Service 220 240 V 50 60 Hz 4 amps maximum Environmental 5 to 40 9C 0 to 8096 RH non condensing indoor use Optimum results Requirements are obtained from 20 to 40 9C Heating Range 25 C to 275 C electronically controlled in 1 C increments Resolution microgram Dry nitrogen or dry air 40 C dew point or lower is suggested at 20 to Automatic Test Carrier Gas 25 psi User supplied Rear Panel Parallel printer port PC standard Connections 9 pin RS 232 9600 N 8 1 9 pin Balance Comm proprietary protocol and cable Power cable receptacle with RFI filter Carrier gas input barb fitting Carrier gas outlet port used for test only Side Panel PC keyboard DIN socket Connections Readability microgram 1 ppm 0 0001 Repeatability Depends on sample properties and capillary tube technique typically CV is less than 10 for moisture levels greater than 0 1 96 and 15 for moisture levels below 1 90 Rate Threshold user adjustable En
40. logs and cleaning of the flow path between the needle and the filter For clean samples such as most plastic resin pellets this 1s seldom necessary For very dusty high moisture or high volatile content samples it may be necessary more often A CAUTION A Line voltage is present under the instrument s cover To prevent electrical shock turn off power and remove the power cord Do not re connect the power cord and turn power on until after the cover is secured in place ACCESS COVER REMOVAL Refer to this procedure to gain access to the internal parts as directed in other sections of this manual Turn the instrument off and remove the power cord from its socket Insert a small probe into the hole at the back of the instrument marked by a graphic symbol indicating the method of opening the access cover Push inward to release the safety catch and lift the cover up with your free hand Remove it and put it in a safe place Page 37 Remove the access cover See ACCESS COVER REMOVAL on page 37 The sensor block is hot 68 C do not touch it with bare hands until it has been allowed to cool down Remove the instrument cover by unlatching the two latches on the back chassis wall A long screwdriver is helpful LFUNIMNG Disconnect or Iisoiato his enuipment Mom HAZARDOUS LIVE voltage balora opening cover c ge Ws Buen Spe i Unplug the power cable Remove the cover See ACCESS CO
41. ment and any accessories or materials that may be required for your work balance printer sample bottles samples etc Dry Air Inlet with AC Power entry module with Tygon 2075 tubing ON OFF Switch showing connected power cord connected Using 1 8 I D formulation 2075 Tygon tubing AZI P N 345 0050 attach a dry nitrogen or dry carrier gas source to the Flow Inlet Port fitting on the back of the instrument indicated by an arrow pointing to the connector Carrier gas source may be a cylinder facility air or nitrogen supply or dry air generator The pressure from the compressed gas cylinder 1s very high and is normally reduced by a two stage regulator The pressure from the compressed air or nitrogen system in most facilities will be at moderate pressure and normally require only a single stage regulator The dry air generator manufactured by Arizona Instrument LLC P N Y990 0143 produces the pressure required by the instrument and therefore no additional regulator is need This is the ideal choice for portable operation Examples of regulators capable of regulating pressure to 30 psi are as follows gt For cylinder applications Multistage Gas Regulator for Compressed Air Cylinder VWR 55850 150 55850 155 or equivalent or Matheson Gas Products Brass Dual Stage Regulator model 8L or equivalent gt For supplied gas sources Matheson Gas Products Model 3470 Series Single Stage or equivalent Line Regulator m
42. nds Average materials may use 30 to 45 seconds to purge the bottle Samples that evolve moisture readily may need less than 30 seconds or no purge time at all This parameter along with temperature and ending criteria may be adjusted to optimize results for any given material Page 23 11 1 Correlation to Reference Method For best accuracy and speed the sample should evolve between 500 and 1000 micrograms of water during the test Larger amounts will not significantly improve accuracy and will only add to the test time Smaller quantities will result in faster tests but may degrade accuracy depending on the properties of the sample If you are attempting to match KF analysis results find out what sample size and sensitivity setting was used in the KF procedure Use approximately ten times as much sample in the Computrac VAPOR PRO and set the rate ending criteria value to ten times the sensitivity value used in the KF equipment Example Karl Fisher Vapor Pro Sensitivity setting 0 1 ug sec 1 ug Sample Size 0 5 g 5g If you do not have the KF parameters available perform the following experiment Use the following calculation to estimate the minimum sample size for 500 ug water 0 05 Expected Moisture Minimum Sample Grams Example Expected Moisture 15 0 0590 Minimum Sample 0 05 05 1 0 gram Use the following calculation to estimate the maximum sample size for 1000 ug water 0 1 Minimum Sample Gr
43. ocated on the temperature calibration interface label the black box 9 7 Return to the TEMPERATURE CALIBRATION MENU highlight VERIFICATION SETUP and press Selct AUTO VERIFY e The purpose of the verification function 15 to TEMP confirm whether the calibration was successful TEMP 3 or not at a given set of temperatures The TEMP 4 200 verification process can be run automatically following the calibration by selecting ON at the AUTO VERIFY prompt e The rest of these instructions assume that the verification is being run automatically AUTO VERIFY ON If you do not wish to edit the temperatures press Esc key and move to the next step 9 8 select which temperature s will be verified toggle down to the TEMP prompt and press Edit e Using the arrow keys enter the temperature you wish to verify and press QUIT and Accpt The temperatures selected should be the ones that best represent those used for your product s When finished press Esc 9 9 Highlight RUN TEMP CAL and press Selct The next screen will ask to ensure that you have the temperature calibration device If the device is hooked up press Go 9 10 When the verification is complete the screen will display e Verify Passed or Verify Failed e Key Options of Quit and Go 9 11 Press GO to save the data 9 12 If the unit failed at any given point Run the calibration again to improve the results 9 13 If a printer i
44. odel 3471 or equivalent Connecting tubing must be Tygon formulation 2075 to prevent introducing moisture into the carrier gas system Tubing size 15 1 8 ID X 1 4 OD Tubing 15 available from AZI as part number 345 0050 A desiccant bed 15 recommended to remove any moisture that may be present in the carrier gas supply As illustrated the desiccant 1s placed just before the inlet connection of the instrument A desiccant kit 1s available from AZI as Kit Desiccator Inline P N Y990 0116 Page 9 The following diagrams are not to scale but illustrate the preferred connecting arrangements Cylinder with two stage regulator 15 connected to the desiccator with Tygon formulation 2075 tubing The desiccator is connected to the instrument with the same type tubing Pressure to the instrument 15 set to 20 psi The facilities air or gas supply 15 usually connected to a wall or bench mounted regulator The regulator 1s connected to the desiccator with Tygon formulation 2075 tubing The desiccator 15 connected to the instrument with the same type tubing Pressure to the instrument is set to 20 psi The dry air generator is connected to the desiccator with Tygon formulation 2075 tubing The desiccator 15 connected to the instrument with the same type tubing Dry Air Generator Figure 4 Using a Dry Air Generator 5 3 For all but the dry air generator adjust the pressure to the instrument to 20 psi Page 10
45. r gt Micrograms ug of water measured e Press the Quit then the Accpt keys To Select How to End the Test e Highlight the Ending Criteria line e Press Selct then EDIT Use the lt and gt arrow keys to choose the type of ending value VV VV WV Rate Ends the test when the moisture evolved from the sample drops below the programmed microgram per second value Use RATE if you want to match an existing standard or method that utilizes RATE criteria such as the KF titration method Predict Ends the test when the built in programmed criteria which mathematically calculates the end point moisture content has been satisfied Use PREDICT if you want to more accurately determine the actual moisture content or are working independently of other standards or methods This calculation constantly monitors moisture loss from the sample and extrapolates the final moisture concentration Predict ending criteria provides the quickest test times Page 22 Time Ends the test when the programmed testing period has elapsed Any value from 001 to 999 minutes may be entered Fixed time ending is seldom superior to the predict calculation but 15 useful when e Conducting application characterization tests or e Investigating long term stability of the instrument and or material These are only guidelines Experiment with your sample to refine the size estimates to achieve your desired speed and accuracy Note that if you are using a rate endin
46. s connected to the Vapor Pro highlight PRINT TEMP CAL REPORT and press Selct to print out the calibration report 9 14 Calibration is complete Turn the instrument off Disconnect the calibration interface Page 20 10 RUNNING MOISTURE TESTS The Computrac VAPOR Pro has eight available positions to store test parameters for different materials Storing the parameters ensures that each test of the same material will use the same parameters to assure accurate reliable and repeatable testing Select Test Settings From the Main Menu select Memory Start MAIN MENU Menu MEMORY START MENU STORED DATA MEHU CALIBRATION MEHU SETUP MENU DIAGHOSTIC MEHU Esc ETT Down MEMORY START e From the Memory Start Menu select Add Edit Memory Start REORDER MEMORY START e Move the cursor down to an available memory PRINT MEMOR STARIS start setting a blank line To Enter Material Name Press Selct then Edit at the Edit Sample ID line gt Usethe lt and P arrow keys to move the cursor s position left and right gt Usethe wand arrow keys to scroll through the letters numbers and symbols If a keyboard is included with your system use the arrow keys on the 101 key keyboard to navigate the menu system The keyboard makes entry of long strings of characters such as product names easy since all letters numbers and symbols can be used while editing e Enter the ID name then press
47. t of EDIT MEMORY START 02 stored test parameter sets EDIT SOMPLE ID Sample ID Name TEMPERATURES RESULT DISPLAY OPTIOH Test Temperatures ENDING CRITERIA Result Display Type Ending Criteria Method of Entering Sample Weight Bottle Purge Control REORDER MEMORY START Allows the stored parameter sets to be rearranged deleted or copied gt Rearrangement is by Cut and Paste to an unused line or Cut and Insert between lines gt Deletion is by a cut without pasting to a location Entry of a new parameter set which is close to a existing one is done by the and Paste or Copy and Insert method Only the different parameters need to be edited for the new parameter set PRINT MEMORY STARTS Prints a list of the stored parameter sets on the attached printer or computer Printing must be enabled and programmed Go to the Setup Menu Ext Printer Setup and Report Setup menus to select the port and report content Stored Data Menu Not available on 21 CFR Part 11 compliant instruments VIEW STORED DATA Allows viewing and printing of all data stored for a given test ANALYZE STORED DATA Permits selection of stored data sets for statistical analysis Statistical analysis includes mean standard deviation S D and coefficient of variation C V e REORDER STORED DATA Rearranges the order of the list of stored data sets It also deletes sets no longer needed or copies existing
48. t to the ON I position 5 10 After a quick view of the instrument identification and the firmware version the Main Test Screen will appear Heater on indicator EEZVEZUTUEFEEVEER 100 oven temperature LAST IHAL 3 3 F Data from last test Last test complete and saved E n3 c TEST ulna rA GE Current sensor status MEMRY 5 5 55 MEMRY READY TO TEST 856 Current To select another set Memry Menu Graph oven temperature of stored test parameters To view test s graphical data To access Main Menu options 5 11 Allow the instrument to warm up for 20 minutes Page 12 CHECK SENSOR STATUS The display shows the function of the soft keys at the bottom of the screen Use the soft key buttons below the display on the front panel to move through the menu screens and system settings The function of each soft key will change as needed to provide the selection and input requirements of each menu screen 6 1 From the Main Test Screen select Menu to reveal the Main Menu BB HB2H4 x H20 0679 1 H20 HB H3 H2 RH_ SEHSOR CAL SELECTS PRESS MEMRY READY TO TEST Henry Menu Graph 6 2 Move the cursor down to highlight the Diagnostic MAIN MENU Menu MEMORY START MENU STORED DATA MENU CALIBRATION MENU 6 3 Press Selct SETUP MENU DIAGNOSTIC MENU Esc Ee a Up 6 4 Verify the View System Sensor Status option is D
49. ter see page 39 Call AZI Customer Service at 800 528 4711 or 602 470 1414 Page 14 The water calibration test verifies that the instrument is working properly This test only takes a few minutes Arizona Instrument recommends that this test be run every day to verify the system s calibration and accuracy For greatest accuracy each test should be run with a new septa Ensure the septum is installed with the smooth Teflon liner to the inside of the bottle to prevent moisture from the soft plastic from affecting the result 8 1 Carefully remove a 1 0 Microliter Microcap AZI P N 990 0150 from the storage bottle Use forceps tweezers to handle the tube 8 2 Just touch the end of the tube into purified or de ionized water The tube must be in contact with the water long enough to fill about 10 to 15 seconds If the tube is not full the reading will be low 8 3 Pull the capillary tube straight up out of the water A rapid but straight motion will tend to remove excess water from the side of the tube Excess moisture on the side of the tube will cause a high reading 8 4 Visually verify that no free water is on the outside of the tube Wipe the tube only if necessary with a finger or other non absorbent instrument DO NOT WIPE THE TUBE WITH A TISSUE OR OTHER OBJECT THAT WILL SOAK WATER OUT OF THE CAPILLARY TUBE 8 5 Gently place the tube into a dry sample bottle just past the bottle s neck as shown Dropping or sh
50. tomer Service at 800 528 7411 or 602 470 1414 for a replacement Remove the power cord from its socket CAUTION A Line voltage is present under the instrument s cover To prevent electrical shock turn off power and remove the power cord when instructed to do so Do not re connect the power cord and turn power on until after the cover is secured in place e Unplug the power cable e Remove the cover See ACCESS COVER REMOVAL on page 37 gt Not all instruments use a filter but if it is used it is visible at right center above the Sensor Block mu The filter or the Luer adaptor for mounting the ES E 7 C 1 filter will be found near the center on top of the i x QI s G Sensor Block Pull the Tygon tubing from the adaptor or filter disk If replacing an old filter rotate it counterclockwise and lift 1t off Discard the old filter 4 Page 39 e Install a new filter by rotating it clockwise till finger tight Reattach the Tygon tubing If condensed material 15 visible in the flex Jg tubing replace the flex tubing Note that this 1s a special type of hydrophobic tubing The proper tubing is available from AZI as AZI Part Number 345 0050 Replace the top cover and power cord How Do I R e i Q Obtain replacement Sensor Block assembly Call AZI Customer Service at 800 528 7411 or 602 470 1414 for a replacement e Turn off the instrument and disconnect
51. y asked questions with answers and possible solutions What if my calibration check results are out of range A Perform sensor calibration The Computrac VAPOR PRO self adjusts the internal calibration factors to the high precision moisture sensor due to varying conditions temperature product accumulation in the flow system component wear etc Over time this may cause the overall calibration to drift slightly Since sensor calibration is easily performed daily verification is recommended Q How do I dry the instrument after an upset A In case the instrument has been flooded with moisture either by running a very wet sample or by exposure to a wet atmosphere it will be necessary to dry the entire flow system before normal operation can be resumed Inspect the tubing the needle the sensor block and if a filter 1s used on the instrument inspect the filter also to be sure that no contaminants are present that might absorb and release large quantities of water If contamination is present replace the contaminated parts with new parts e Confirm that the carrier gas supply is dry If there is any doubt about this employ drying cylinder in line with the gas supply before connecting it to the instrument gas input fitting We highly recommend using an in line desiccant to prevent unexpected contamination or to minimize any variation in carrier gas moisture levels Goto the memory start list and select x DRYNESS TE
52. y start specifies the weight input from a digital balance but the instrument is not communicating with a balance Check the cable and assure that the balance 1s powered on on line and stable Page 33 15 SYSTEM FAILURE CODES Occurring less frequently than condition prompts system failure codes require the instrument to be switched off and then powered back up It is possible for a failure to occur due to a transient condition However if the failure persists or occurs frequently call Arizona Instrument Customer Service at 800 528 7411 or 602 470 1414 ERROR ERROR MESSAGE TEXT MOST LIKELY CAUSE PC KEYBOARD COM FAIL BAD CABLE OR CONFIG 3 PC KEY CONTROLLER DEAD KEYBOARD TIMEOUT CABLE OR SENSOR FAIL RH RTD RANGE ERROR CABLE OR RTD FAIL 77 7777 Sensor Block HEATER Sensor Block RTD OUT OF POSITION BOTTLE HEATER FAILURE BOTTLE HTR RTD OUT OF POSITION BOTTLE CONTROL ERR ROOM TOO COLD 15 Sensor Block RTD RANGE CABLE OR RTD FAILURE ERROR 16 Sensor Block RTD RATE Sensor Block HEATER FAILURE ERROR 17 Sensor Block HEATER Sensor Block RTD OUT OF POSITION OVERTEMP Sensor Block CONTROL Sensor Block HTR OUT OF POSITION ERR COMPONENT FAILURE MAIN BOARD COMPONENT FAILURE MAIN BOARD COMPONENT FAILURE MAIN BOARD COMPONENT FAILURE MAIN BOARD COMPONENT FAILURE MAIN BOARD COMPONENT FAILURE MAIN BOARD COMPONENT FAILURE MAIN BOARD Page 34 16 COMMONLY ASKED QUESTIONS Below are some commonl
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