CT-3500L User`s Manual
Contents
1. Page 37 16 COMMONLY ASKED QUESTIONS Below are some commonly asked questions with answers and possible solutions What if my calibration check results are out of range A Perform a sensor calibration The Computrac VAPOR PRO Rx 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 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 e 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 a 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 minimi2. 17 REPAIR AND MAINTENANCE Routine maintenance consists of checking the Hydrophobic Filter for clogging or contamination checking the needles for clogs and cleaning the flow path between the needle and the filter For clean samples such as most plastic resin pellets this is seldom necessary For very dusty high moisture or high volatile content samples it may be necessary more often 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 41 RUMENT COVER REMOVAI e Remove the access cover See ACCESS COVER REMOVAL on page 41 e The sensor block is hot 68 C do not touch it with bare hands until it has been allowed to cool down e Remove the instrument cover by unlatching the two latches on the back chassis wall A long screwdriver is helpful WARNING Disconnec
3. Arizona instrument LILC USER MANUAL COMPUTRAC VAPOR PRO Rx MOISTURE ANALYZER Firmware Revision 1 13 2 July 2011 ARIZONA INSTRUMENT LLC 3375 N Delaware Street Chandler AZ 85225 USA 800 528 7411 602 470 1414 f 480 804 0656 WWW azic com email General azi azic com International intlh azic com Support support azic com AZI P 700 0050 F 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 2002 2011 Arizona Instrument LLC PLEASE NOTE This manual covers both VAPOR PRO Rx instrument models the CT 3500 and the CT 3500 L Generally instrument operation and functionality are identical When there is a difference between the two models this 1s specifically delineated in the manual where appropriate Refer to the instrument serial label to confirm whether your instrument is a CT 3500 or a CT 3500 L Page 2 Table of Contents 1 WARNINGS AND SAFETY INFORMATION cccsssssssssssscccsssscssssssssssssssssssscccccssssssssssssss
4. When READY TO TEST is displayed on the Main Test Screen e Press Memry e Highlight RH SENSOR e Press START 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 When the instrument again indicates READY TO TEST prepare and load another capillary tube and sample bottle and press START to perform another test Do this at least four 4 more times or until you have a total of five valid test results To be considered valid all 5 tests must give results within 50 ug of each other If five valid results are not available repeat the tests until there are five valid tests If continued testing does not produce five valid test results please contact Customer Service for assistance at 602 470 1414 or 800 528 7411 or via email at support azic com When five tests results are available press Menu and the Main Menu Screen appears e Select CALIBRATION MENU e Select PERFORM RH SENSOR CAL e Press Selct Down and Selct to select all calibration tests to be included the calculations e Press Cal The screen will display the calibration water mass e If necessary use Edit to change the value of the capillary tube in grams 1 0 ul 1000 ug 5 ul 500 ug and 1 ul 100 ug e Press Go A screen will appear listing the calculated data and calibration f
5. 19 Turn the VAPOR PRO ON From the Main Test Screen press Menu to bring up the MAIN MENU Press Down if necessary so that CALIBRATION MENU 1 highlighted press Selct At the Calibration Menu press Down until TEMPERATURE CALIBRATION is highlighted press Selct Highlight ENTER DEVICE DATA and enter the appropriate data for the interface serial number probe serial number and calibration certification date e The interface and probe serial numbers and the certification date are located on the temperature calibration interface label the black box ENTER DEVICE DATA INTERFACE 123 44567 CERT DATE 61 62 2682 Return to the TEMPERATURE CALIBRATION MENU highlight VERIFICATION SETUP and press Selct e The purpose of the verification function is to confirm whether the calibration was successful or not at a given set of temperatures The verification process TEMP 4 200 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 and move to the next step To select which temperature s will be verified press Down to the TEMP prompt and press Edit e Using the Incr and Decr keys enter the temperature you wish to verify and press Quit then Accept The temperatures selected should be the o
6. all functions gt CALIBR KEY controls calibration access e TDLTO Allows entry of an AZI supplied password that will override a factory lockout feature This lockout feature is used on AZI owned analyzers that are loaned to customers for a short period so it is not used on customers equipment e THIRTY DAYS Displays the status of the factory lockout feature Page 34 Diagnostic Menu e VIEW SYSTEM SENSOR STATUS Displays the current value of gt RH measured by the RH sensor RH SENSOR gt Flow in rate in milliliters per minute FLOW IN gt Sensor block temperature BLOCK 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 H20 flow rate in micrograms per second and Instrument flow mode usually standby when not performing a test and not in manual flow control RH SENSOR 00 300 7 NI FLOW IN 199 mL Min ure BLOCK RID 968 C VN NN BLOCK RTD BOTTLE RID of BOTTLE RID 119 C RH RID RH RID 872 H20 FLOW 6661 1 ug Sec H20 FLOW 6AB1 1 FLOW MODE LOW FLOW MODE LOW Esc Units CT 3500 L CT 3500 e 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 e Manual Off retur
7. 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 Do not expose the moisture analyzer unnecessarily to extreme temperatures 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 gt Warning Information or procedure that must be observed Electrical Shock Hazard Observe all steps of the procedure to prevent electrical shock gt Warning Hot surface or area of possible severe burns Use listed precautions when operating the instrument and handling samples to prevent injury Page 5 2 INTRODUCTION Arizona Instrument is proud to continue its leadership role in developing new technology for the moisture analysis industry The Computrac VAPOR PRO Rx is a giant step forward in the measurement of ver
8. shall AZI be liable for consequential and or incidental damages The effective warranty begins on the date of purchase by or lease to the first end user owner Keep the dated bill of sale or invoice for evidence of the effective warranty date when warranty service 15 requested In the event that any questions or problems should arise in the use or application of your Computrac VAPOR PRO Rx instrument call AZI Customer Service or your technical sales representative Contact Customer Service for extended warranty information Page 48 TRADEMARK AND COPYRIGHT PROTECTION Computrac VAPOR PROP Arizona Instrument AZI and the stylized AZI are all registered trademarks of Arizona Instrument LLC Instrument firmware is copyright protected specifications subject to change without notice US Patent No 5 712 421 Other US and Foreign Patents Pending Copyright 2002 2011 Arizona Instrument LLC Rights Reserved Drierite is registered trademark of W A Hammond Drierite Company Ltd Epson is a registered trademark of Seiko Epson Corporation Teflon is a registered trademark of E I DuPont de Nemours Company Windows is a registered trademark of Microsoft Corporation in the United States and other countries Arizona Instrument LLC Computrac VAPOR PRO Rx Moisture Analyzer User Manual Part Number 700 0050 Revision F July 2011 If you have any questions regarding the operation of this instrument
9. the instrument 1 21 CFR Part 11 compliant After the 5th test e Press Menu for the MAIN MENU e Highlight STORED DATA MENU and press Selct Not available in 21 CFR Part 11 compliant instruments e Highlight ANALYZE STORED DATA and press Selct 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 Ifthe mean result does not fall within the 5 range perform the sensor calibration See the procedure beginning on page 17 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 Mean Standard Deviation and Coefficient of Variation are calculated using the following formulas e Mean total of results divided by number of results m 2 e Standard Deviation 2227 e Coefficient of Variation Standard Deviation divided by Mean times 100 Page 16 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 Ther
10. 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 Cal Constants menu EDIT SYSTEM CAL CONSTANTS This EDIT SYSTEM CAL CONSTANTS selection allows the entry of gt The two sensor constants RH Sensor VO RH SENSOR 005 3 168 U SYSTEM CAL 166 and V75 found on the sensor PCB and entered when a sensor 1 replaced The calculated offset value entered by the instrument during a RH Sensor PrintlEsc Calibration This value should only be changed by the instrument because 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 TEMPERTURE CALIBRATION This selection initiates the menu that allows calibration of the internal oven Section 10 of this manual explains the temperature calibration and verification procedure CLOCK SETUP Set the internal clock for the correct time and date EXT BALANCE SETUP Select the type of external balance AZI SP150 or SCI SA80 Select the tare mode Fixed weight manual bottle weight entry or balance entry Testthe commu
11. with the remaining solvent from the sample transport Switch MANUAL FLOW CONTROL to MANUAL OFF Escape to the MAIN TEST SCREEN by press ESC three times Wait for the Status Bar to read READY TO TEST before resuming normal operation This typically takes 15 to 30 minutes A 2 There may be a leak in the flow system If cleaning the needle according to the above procedure did not resolve the issue there may be a leak in the flow system Call AZI Customer Service at 800 528 7411 or 602 470 1414 for assistance Page 39 What about interferences A The only known interferences are from ammonium hydroxide ethanol methanol and acetone Samples containing these and similar chemicals should never be used Additionally never use these substances as cleaning agents in or on the Computrac VAPOR PRO Rx Use isopropyl alcohol for cleaning instead Why do my tests sometimes end in less than 2 minutes This is 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 the test If the sample moisture 1 very low or the sample 1 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 or a lower ending rate value See Selecting How to End the Test beginning on page 22 Q How do I transfer stored data to a computer fil
12. 5 mm approximately 1 16 to 2 5 100 120 V 50 60 Hz 8 amps maximum or 220 240 V 50 60 Hz 4 amps maximum 5 to 40 C 0 to 80 RH non condensing indoor use Optimum results are obtained from 20 to 40 C 25 C to 275 C electronically controlled Temperature controlled to 1 C of set point 0 1 micrograms Dry nitrogen or dry air 40 C dew point or lower is suggested at 17 to 22 psi User supplied Parallel printer port PC standard 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 PC keyboard DIN socket 0 1 micrograms 1 ppm 0 0001 9o Depends on sample properties and capillary tube technique typically CV is less than 10 for moisture levels above 1 and 15 for moisture levels below 1 Rate Threshold user adjustable Time user adjustable Prediction Time then Rate user adjustable US and Canadian Underwriters Laboratory European Communities CE Arizona Instrument LLC is an ISO9001 Registered Company Page 47 19 Arizona Instrument LLC warrants the Computrac VAPOR PRO Rx to be free from defects in materials or workmanship for two 2 years from the date of purchase for those instruments sold in the USA international sales normally carry a one 1 year warranty AZI will repair or replace at its option products that AZI
13. ETERS 25 13 RUNNING MOISTURE TESTS USING UNSEALED BOTTLES ecce eee eene eee e ee eee eee eee eee eee eee eee 27 RUNNING LYOPHILIZED MOISTURE TESTS ecce eee eene eee eee e 27 14 COMPUTRAC VAPOR PRO RX MENU SYSTEM ccccssssssscsssssssscsssssnscsssscsnsesssessnecssecsssecssssssecssseseneesss 29 Memory Siirt Moni eR 31 Stored Data Menu Not available on 21 CFR Part 11 compliant instruments 31 cre CO MeN E 32 SDN n 33 Diacnosne ee 35 15 CONDITION PROMPTS AND SYSTEM FAILURE CODES eeec eee e eee eese eese esee eese ee eessss eese e aseo 36 COMMOTION EEO ap PO aU PORE EUR ERU OR UAM RUNI I EE UNE 36 System Faure C Ie 37 16 COMMONLY ASKED QUESTIONS 38 17 41 ACCESS COVER REMQOV 41 INSTRUMENT COVER REMOVA D 42 TO INSPECT THE FILTER AND TUBING 42 do I change the filter Not on all instruments e ccce eee eee ee eee eee eee eee enne 43 How do I Adjust the Dry Air Flow ccccccccsssssssscssssccesccccccccccccccccssssssssssssccscccsssscssseees 44 How do I set up Co
14. P Setup REPORT SETUP e amp Ext Balance setup ACCESS KEY SETUP e Select Balance Driver Esc 5Selct Up Down e Select the AZI SP150 or SCI SA800 according EXT SETUP SELECT BALANCE DRIVER e Select Quit SELECT TARE MODE CHECK BALANCE COMM e Select Accept Esc Selct e Select Tare Mode e Fixed Bottle Weight if all sample bottles SELECT TARE MODE weigh the same or the same bottle is used FIXED BOTTLE WEICHT tin e Manual Bottle Weight if all bottles are pre weighed by hand e Weigh Empty Bottle if the balance 1 to tare weigh each bottle before it is filled with Esc Selct Down sample e Escape Esc to the Ext Balance Setup Menu e Connect the cable between the Computrac VAPOR PRO Rx Balance Input and the balance RS 232 Connector STERNAL BALANCE CHECKE e Turn the balance power on and wait for the NM TURM BALANCE ready indication MAKE SURE COMM CABLE IS e Select Check Balance Comm on the Ext GONNECTED TO PORT 1 Balance Setup Menu HIT GO WHEN BALANCE 1 READY e Select Go and wait for communication to be established e If the check is bad verify each step above e If the check indicates good communication a weight will be shown on the Computrac CHECKING BALANCE COMM VAPOR PRO Rx display e If the check is good press Esc until the Main Test Screen is displayed If not recheck the cables and setup conditions ETERNAL BALANCE CHECK Page 46 18 S
15. PECIFICATIONS AND RATINGS 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 to AZI document Number 720 0036 for current specifications controlling this instrument specifications and features are subject to change without notice Periodically contact Customer Service to see if 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 Weight Sample Bottle Size Range Power Ratings Environmental Requirements Heating Range Heater Control Lower Detection Limit Special Service Carrier Gas Rear Panel Connections Side Panel Connections Resolution Repeatability Automatic Test Ending Method Certifications Approximately 150 mm 5 75 H x 370 mm 14 5 W x 360mm 14 D not including the bottle loader ramp Standard bottle loader ramp adds about 90 mm 3 5 to the width Approximately 8 6 kg 19 16 Outside Diameter from 13 mm to 37 mm approximately 0 5 to 1 5 Overall Length from 29 5 mm to 6
16. actor e Press Accept to save the new calibration constant The new calibration constant will remain in memory until the next sensor calibration 1 performed The RH Sensor Tests used for this calibration will be automatically deleted so they will not be used for the next calibration Press the Esc key until the Main Test Screen appears Perform at least one more calibration check to verify the accuracy of the calibration Accuracy of results should be within five 5 percent of the capillary capacity of 1000 micrograms or in the range 950 to 1050 Page 18 Parts Required in addition to the VAPOR PRO RX Amt AZI Part Number Description Y990 0142 110 VAC Temperature Calibration Kit with 9 VDC 100 mA 3 5 Y990 0165 220 VAC mm male plug positive tip DC Adaptor 1 Y990 0098 Graphics Printer with cable optional 1 Install the Temperature Calibration Probe into the calibration port to the rear of and below the bottle ramp as shown The probe must be inserted all the way in until the handle touches the case Run the cable behind the instrument as shown to the right to help hold the probe in place Plug the probe interface cable into the matching connector on the Temperature Calibration Interface TCI box Plug the RS 232 interface cable into the matching connector on the TCI box and the Balance I O port on the back of the instrument Plug the AC adaptor into an appropriate isolated power outlet Page
17. ams O15 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 is 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 After determining the optimum test parameters repeat the test once to confirm the results For performance data run three to five 3 5 tests and for 21 CFR Part 11 non compliant instruments use the following steps to determine the statistics e Select STORED DATA from the MAIN MENU e Select ANALYZE STORED DATA e Select the test results you want to analyze and e Press Calc 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 Mean Standard Deviation and Coefficient of Variation are calculated using the following formulas e Mean total of results divided by number of results mm 2 e Standard Deviation LL n z e Coefficient of Variation St
18. andard Deviation divided by Mean times 100 Page 26 Tare a clean empty sample bottle including the septum and cap Based on the expected moisture content of the sample determine optimum sample size using the chart on page 26 However do not fill the bottle over full so that sufficient carrier gas may flow and pick up evolved moisture ENSURE that the smooth slick side of the septum is to the inside of the bottle 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 Press START When prompted enter the net sample weight and insert the bottle The system will purge the bottle for a pre determined amount of time The sensor will again zero and the test will begin e 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 at 800 528 7411 or 602 470 1414 for advice on how to reduce bottle purge me e An audible beep will sound when the instrument has completed the test Use the table on page 26 and the FINAL moisture reading on the display to adjust the sample size to optimize test time repeatability and accuracy VAPOR PRO Rx has 102 available positions to store test parameters for different mate
19. contact Arizona Instrument Customer Service You may call our toll free number from the US and Canada 800 528 7411 Our fax is 480 804 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 3375 N Delaware Street Chandler AZ 85225 USA http www azic com email 71 1 General int azic com International support azic com Customer Support Page 49
20. determines to be defective during the warranty period defective parts replaced by AZI become the property of AZI Replacement parts are warranted for the remaining portion of the effective warranty period This warranty does not apply to expendable or consumable items or routine maintenance The above warranty does not extend to any product which has been subjected to misuse abuse neglect accident improper application modifications or service performed by persons other than 715 own service representatives power surges or spikes negligence in use maintenance storage transportation or handling or acts of God If a VAPOR PRO product is defective in workmanship or materials the owner s sole remedy shall be repair or replacement of the defective part or parts as provided above Under no circumstances shall AZI be liable in any way to the owner or any user for any damage including but not limited to any loss of business or profits or any other direct indirect special incidental or consequential damages whether or not foreseeable and whether or not based on breach of warranty contract or negligence in connection with the sale of such products Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you No other warranty is expressed or implied including the warranties of merchantability or fitness for a particular purpose In no event
21. e This is not available in 21 CFR Part 11 compliant instruments To store archival information from non compliant instruments to a computer text file e Set up the instrument to print to the RS 232 port Setup Menu External Printer Setup e Goto Setup Menu Report Setup Report Control and select text output e 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 HyperTerminal are good choices for this purpose Consult the documentation for your communications program for details on how to save input data to a file e Go to 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 To print test results or stored data e 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 e Make sure the printer is supplied with paper the printer power is on and the printer is on line e Goto Setup Menu and External Printer Setup Select the Printer Type and LPT port NOTE Use EPSON RASTER for the Epson C884 printer e Goto Setup Menu Report Setup and Report Control Select text output e Goto the screen showing Print and select the report to be printed Page 40
22. e preferred connecting arrangements For all but the dry air generator adjust the pressure to the instrument between 17 and 22 psi 118 152 kPa with 20 psi 138 kPa preferred Cylinder with two stage regulator is connected to the desiccator with clear tubing AZI P N 345 0050 The desiccator is connected to the instrument with the same type of tubing Pressure to the instrument is set between 17 and 22 psi 118 152 kPa The facilities air or gas supply is usually connected to a wall or bench mounted regulator The regulator is connected to the desiccator with clear tubing AZI P N 345 0050 The desiccator is connected to the instrument with the same type of tubing Pressure to the instrument is set between 17 and 22 psi 118 152 kPa The dry air generator is connected to the desiccator with yellow tubing AZI P N 2500 3003 The desiccator is connected to the instrument with clear tubing AZI P N 345 0050 Pressure from the Dry Air Generator cannot be adjusted but should be above 14 5 psi 100 kPa Dry Air Generator Dry Air Generator Page 10 If you plan to use a 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 Connect all accessories while the instrument is turned OFF and power ON the accessories before powering ON the instrument Pow
23. e 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 responsible for any damage that arises in connection with the VP Series Moisture Analyzers and potentially harmful substances e Substances containing toxic caustic 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 e 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 Analyzers 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 clear tubing Check for compatibility of substances to be tested before inserting them into the instrument e The user has the responsibility for carrying out appropriate decontamination if hazardous material 1 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 dama
24. efore 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 0153 e Septa Sample Bottle 990 0074 e Capillary Tubes 1 0 ul 100 vial 990 0150 Carefully remove a capillary tube from the storage bottle Use tweezers to handle the tube 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 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 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 Install a dry cap and septum on the sample bottle with the smooth shiny side of the septum to the inside of the bottle Gently place the sample bottle onto the transport so that the tube rests toward the neck of the bottle as shown Page 17
25. elect Down Entering Material Name e Press Select then Edit at the Edit Sample ID line gt Use the Left and Right keys to move the cursor s position left and right gt Use the Incr and Decr keys to scroll through the letters numbers and symbols TIP If a keyboard is included with your system use the arrow keys on the 101 key keyboard to navigate the menu system Be sure to remove power from the instrument before connecting the keyboard 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 name of the material to be tested and then press Quit followed by Accept Page 21 Selecting Programmed Test Temperature Determining the Test Temperature 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 me
26. er 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 The unit is configured at the factory for the destination country at time of shipment However to ensure the unit is configured correctly verify the arrow indicator on the fuse holder points to the proper voltage for your Voltage Indicator Arrow environment before connecting to a power source To change from 110 to 220VAC or from 220 to 110 Ensure the power switch located next to the fuse holder is in the off position gt Remove the fuse holder from the power entry module by prying with a small flat screwdriver Change the fuse A unit operating from 100 120 VAC should have two 8 amp slow blow fuses AZI P N 190 1001 A unit operating from 200 240 VAC should have two 4 amp slow blow fuses AZI P N 190 1002 Turn the fuse holder around and slide it back in so that the arrow indicator on the power entry module is pointing to the correct voltage for your environment CAUTION Never use any power cable other than the one provided or one of equivalent UL listed ratings Be sure that the ground pin of the power source 1s properly grounded Never cover the power receptacle so that the power cord cannot be removed quickly and easily Connect the instrument line cord into the matching port on the back of the in
27. er cord e Turn the instrument on and perform a Dryness Tests See page 14 e When the purge process concludes the instrument is ready for normal use How do I Adjust the Dry Air Flow CAUTION Line voltage is present under the instrument s cover Use not to touch any components except those listed in the following procedure to prevent electrical shock A Follow the steps listed below Verify the pressure of the carrier gas supplied to the instrument is between 17 and 22 psi Unplug the power cable Remove the cover See ACCESS COVER REMOVAL on page 41 Remove the instrument cover See INSTRUMENT COVER REMOVAL on page 42 Plug the power cord back in and turn the instrument ON From the MAIN TEST SCREEN select the following menus gt MENU DIAGNOSTIC MENU and VIEW SYSTEM SENSOR STATUS SENSOR STATUS SENSOR STATUS HH 3HH x RH RH SENSOR BH 368 xz RH H 5 mL Min FLOW IM 166 mL Min BLOCK RID H68 C BLOCK RID 868 C BOTTLE RID 51 C BOTTLE RID 119 RH RID 972 C RH RID H72 H20 FLOW 0001 1 ug Sec H20 FLOW 1 FLOW MODE LOW FLOW MODE LOW CT 3500 L CT 3500 Page 44 If FLOW IN is not 75 2 mL min CT 3500 L 100 10 mL min CT 3500 adjust the pressure regulator There are two configurations of the flow regulator On older instruments gt Locate the flow regulator that is mounted to the right of the dis
28. g a test For repeatability testing use a very consistent sample size within 0 2 gram for each test Page 22 PREDICT Ends the test when the built in programmed criteria that mathematically calculate the end point moisture content have 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 TIME Ends the test when the programmed testing period has elapsed Any value from 001 to 999 minutes may be entered TIME ending is seldom superior to the PREDICT calculation but is useful when e Conducting application characterization tests or e Investigating long term stability of the instrument and or material TIME THEN RATE Ends the test when the moisture evolved from the sample drops below the programmed microgram per second value after the programmed time period has elapsed This ending criterion 1 useful for samples that take a long time to heat up before evolving moisture or in other words when the rate curve for a sample stays low for a period of time before rising significantly once the moisture starts evolving Selecting Sample Weight Entry Method e Highlight SAMPLE WEIGHT ENTRY e Press Selct MANUAL WEIGHT ENTRY This method is used when a sample we
29. ge 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 the 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 41 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 C to 40 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
30. howing the following options e MEMORY START MENU e STORED DATA MENU e CALIBRATION MENU MEMORY START MENU e DIAGNOSTIC MENU PRINT MEMORY STARTS Esc Selct Down STORED DATA MENU ANALYZE STORED DATA REORDER STORED DATA DELETE STORED DATA EMPTY BOTTLE WEIGHT MAIN MENU Esc ESEJ Down MEMORY START CALIBRATION MENU CALIBRATION MENU Ci CAL r SETUP MENU ULEW CALIBRATION STATUS DIAGNOSTIC MENU PRINT CAL REPORT TEMPERATURE CALIBRATION Esc Selct Down Esc Selct Down SETUP MENU GLOCK SETUP BALANCE SETUP EXT PRINTER SETUP REPORT SETUP ACCESS KEY SETUP TDLTO THIRTY DAYS NO Esc Selct Down DIAGNOSTIC MENU p M VIEW SYSTEM SENSOR STATUS MANUAL FLOW CONTROL MENU SYSTEM EXCEPTIONS PRINT EACEPTION REPORT ECT Select Doun e Use the Up and Down keys to scroll through the selections e Use the Esc and Selct keys to Escape or Select your choice Page 30 Memory Start Menu ADD EDIT MEMORY START lists of EDIT MEMORY START 82 stored test parameter sets EDIT SAMPLE ID Sample ID Name TEMPERATURES RESULT DISPLAY OPTION Test Temperatures ENDING CRITERIA Result Display Type Ending Criteria Method of Entering Sample Weight Esc select Down Bottle Purge Control REORDER MEMORY START Allows the stored parameter sets t
31. ight is measured with a precision balance The program waits at the start of a test until the sample weight in grams is entered Weights are accepted from 00 0000 to 99 9999 erams DIGITAL BALANCE This method is used when a digital balance is connected to the instrument and the weight is communicated directly from the balance to the instrument FIXED SAMPLE WEIGHT This method is 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 is entered Page 23 Selecting Bottle Purge Control e Highlight BOTTLE PURGE CONTROL e Press Selct then Edit The bottle purge time 1 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 seconds 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 Note There is also a Correlation Factor menu item in each memory start This feature is not active at this time and this menu item cannot be selected Page 24 Correlation to Reference Method For best accuracy and speed the sample should evolve be
32. intained The Computrac VAPOR PRO Rx stores programmed memory settings for up to 102 materials and in instruments that are not 21 CFR Part 11 compliant retains the data from the last 30 sample test runs The software automatically calculates the 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 which permit quick and easy system verification are provided in the accessory kit 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 in the hardware software moisture sensor or flow system Page 6 The Computrac VAPOR PRO Rx utilizes a cylinder shaped bottle heater a dry air carrier eas flow system and a moisture sensor The instrument heats a sample of test material contained in a 20 ml septum bottle or sealed freeze dried container Volatiles driven off 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 1 a polymer capacitor relative humidity sensor The reading from this sensor is combined with sensor block temperature and carrier gas flow data in a microprocessor t
33. ir Generator kit 110 VAC Needle Replacement Kit IQOQPO Validation Package Vapor Pro Communications Package Y990 0142 110 VAC 990 0165 220 VAC Y990 0143 Y990 0161 Y990 0164 Y990 0196 If you are unable to locate any of the standard items or have questions regarding the optional accessories contact AZI Customer Service at 800 528 7411 or 602 470 1414 Page 8 Place the Computrac VAPOR PRO Rx solid level surface that is large enough to accommodate the instrument and any accessories or materials that may be required for your work balance printer sample bottles samples i o i EN Q Mf ACEMENT ES T10VAC 220VAC M OL M 2 Dry Air Inlet with AC Power entry module with AZI clear tubing ON OFF Switch showing connected power cord connected Using 1 8 ID clear tubing AZI P N 345 0050 attach a dry nitrogen or dry carrier gas source to the Dry Air Inlet Port fitting on the back of the instrument indicated by an arrow pointing to the connector e 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 manufac
34. lting temperature is known use a temperature 10 or 20 degrees lower To program test temperatures Highlight TEMPERATURES on the EDIT MEMORY START MENU Press Selct then Edit Use the Left and Right keys to move the cursor s position left and right to the digit to be changed Use the Incr and Decr keys to scroll through the numbers When complete press Quit followed by Accept When toggled on the COLD START ENABLE function allows testing to begin at an ambient temperature During the test the oven will ramp up to the pre programmed temperature The COLD START ENABLE is rarely used VV VV WV Selecting Units for the Final Result Display Highlight RESULT DISPLAY OPTION Press Selct then Edit gt Use the Incr and Decr keys to scroll through the options Select either gt Percentage of water Parts per million ppm of water or gt Micrograms ug of water measured Press the Quit then the Accept keys selecting How to End the Test Highlight ENDING CRITERIA Press Selct Use the Up and Down keys to select the type of ending value Press Selct 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 This method is extremely dependent on the amount of sample used and water collected durin
35. mputrac VAPOR PRO Rx to use the 71 SP150 or SCI SA800 digital balance E 46 18 SPECIFICATIONS AND RATINGS 47 I9 AVARRANTY n aio 48 An updated electronic copy of this manual is available at www azic com 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 obtained by calling AZI Customer Service at 1 602 470 1414 or 1 800 528 7411 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 e Do not use this moisture analyzer in a hazardous area l
36. nes that best represent those used for your product s When finished press Esc Place a bottle with cap and clean septa on the transport 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 When the verification is complete the screen will display e Verify Passed or Verify Failed e Key Options of Quit and Go Press Go to save the data If the unit failed at any given point run the calibration again to improve the results If a printer is connected to the instrument highlight PRINT TEMP CAL REPORT and press Selct to print out the calibration report Calibration is complete Disconnect the calibration interface Page 20 11 RUNNING MOISTURE TESTS The Computrac VAPOR PRO Rx has 102 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 Selecting Test Settings e From the MAIN MENU MAIN MENU Highlight MEMORY START MENU and STORED DATA MENU Press Selct a DIAGNOSTIC MEHU Esc Selct Down e From the MEMORY START MENU MEMORY START MENU di de START REORDER MEMORY START FRIHT MEMORY STARTS gt Move the cursor down to an available memory Start setting a blank line and gt Press Selct Esc S
37. nication 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 gt Select EPSON RASTER for the Epson C88 printer REPORT SETUP gt Report Control specifies 9 9 9 9 Report Start off start of a test end of a test Report Format text or spreadsheet Report Interval 00 to 99 seconds Automatic Form Feed End of line form feed ON or OFF Include Graph none result rate both and Lot Number recording ON or OFF Report Content includes or excludes particular items of information in the report These items are 9 9 9 9 99 99 9 9 99 9 9 9 9 Memory Start Number Memory Start ID Lot Number Product ID Test Date Time of Day Final Result ppm or Final Mass micrograms H20 Ending Criterion Sample Weight Test Time Test Temperature Ending Rate micrograms sec at end of test Peak Rate Peak Time Flow In Purge Time Sensor Block Background Bottle Weight gt Edit Company 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 Page 33 e ACCESS KEY SETUP Allows entry of the passwords used to prevent unauthorized alteration of stored parameter sets or stored data sets gt KEY ENABLE OFF to disable access protection and ON to enable access protection gt MASTER KEY controls
38. ns the system to automatic control of the flow state High Flow high flow through the needle and RH sensor for system drydown Low Flow normal flow through the needle and RH sensor Bottle Purge high flow to assist in drying bottles Transport In moves the bottle transport into the unit for factory service and troubleshooting e Transport Out moves the bottle transport out of the unit for factory service and troubleshooting 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 e VIEW SYSTEM EXCEPTIONS A list of up to 20 faults detected by the instrument diagnostic system Print the list and fax 1t 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 Page 35 To assure proper performance your Computrac VAPOR PRO Rx 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 condition prompts or system failure codes 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 p
39. o 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 cutting without pasting to a location Entry of a new parameter set that is close to an existing one is done by the Copy and Paste or Copy and Insert method Only the different parameters need to be edited to the new values PRINT MEMORY STARTS gt Prints a list of the stored parameter sets on the attached printer or computer gt 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 VVVVVV 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 REORDER STORED DATA Rearranges the order of the list of stored data sets It also deletes sets no longer needed or copies existing sets to another location using the cut and paste method DELETE STORED DATA Facilitates deletion of selected data sets Selection may be made by line date or all items EMPTY BOTTLE WEIGHT Lyophilized sample bottles can be weighed after testing and the sample has been removed See page 25 Page 31 Calibration Menu 32 PERFORM RH SENSOR CAL A program to be
40. o generate an accurate measurement of the moisture content in the sample The instrument then displays the result in terms of e Parts per million ppm H20 e Micrograms ug or e Percentage 90 H20 Flow ucer Dry Air In Dry Air Out Moisture Data gt o eee eee ee eee D eee Computrac VAPOR PRO Rx 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 47 for detailed specifications and operating limits Page 7 4 UNPACKING Unpack the instrument and locate the following items AZI Part Number Computrac VAPOR PRO Rx CT3500 Lor CT3500L 220V CT 3500 or CT 3500 L CT 3500 L 100V differences Accessory Kit Y990 0151 1 Power Cord varies with area 200 0002 200 0003 200 0008 USA Canada England Europe 3 Clear Tubing 1 8 X 1 4 345 0050 Tweezers 690 0012 1 User s Manual 700 0050 60 Septa Sample Bottle 990 0074 10 Sample Bottles 20ml 990 0153 1 Sample Breaker 990 0154 1 Vial 1 0 ml Microcap 100 Vial 990 0150 1 Inline Desiccator Y990 0116 1 Vapor Pro Hydrophobic Filter Kit Y990 0155 Optional Accessories Hydrophobic Filter 990 0059 101 key PC keyboard 990 0088 Travel case 990 0092 with cable and Communications Y990 0082 PC graphics printer kit Y 990 0098 Temperature Calibration Kit with 9 VDC 100 mA 3 5 mm male plug tip DC Adaptor Dry A
41. ocation 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 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 e 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 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 Do 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 i
42. ossible causes and recommended solutions 15 1 e 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 Source connected to flow out barb Connect to flow in barb Flow sensor failure Call Arizona Instrument Check that bottle septum is not blocking needle port e THE 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 Install change external desiccant chamber e BALANCE COMM FAILURE This prompt indicates that the selected memory 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 is powered on is on line and stable Page 36 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 e RHRTORANGEERROR e RARTORATE ERROR
43. play 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 CT 3500 L or 100 mL min CT 3500 gt Tighten the lock nut Esc to the MAIN TEST SCREEN Turn the instrument off Remove the power cord from its socket Replace the Instrument cover access cover and power cord Turn the instrument on The instrument is ready for normal use On newer instruments gt Locate the flow regulator that is mounted to the right of the display gt Loosen the knurled lock ring on the regulator then insert a regular screwdriver in the slot on the top of the regulator gt Turn the screwdriver slowly CLOCKWISE or COUNTER CLOCK WISE to adjust the inlet flow regulator until the FLOW IN indicates 75 mL min CT 3500 L or 100 mL min CT 3500 gt Re tighten the knurled lock ring Esc to the MAIN TEST SCREEN Turn the instrument off Remove the power cord from its socket Replace the instrument cover access cover and power cord Turn the instrument on The instrument is ready for normal use Page 45 How do I set up the Computrac VAPOR PRO Rx to use the AZI SP150 or SCI SA800 digital balance A Follow the steps below e Beginning at the Starting Screen select the SETUP MENU prompts in order CLOCK SETUP e Main ExT BALANCE SETUP Fal PRINTER SETU
44. r concerns call AZI Customer Service at 800 528 4711 or 602 470 1414 Page 28 14 VAPOR PRO MENU SYSTEM In the idle state the Main Test Screen displays menu access soft 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 e 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 Heater on indicator Programmed oven temperature Last test complete and saved 11 22 2000 11 42 14 LAST Data from last test 25000 OTAL 3 3 pg 20 TIME 8 01 TEST QU TI MEMRY SELECTS PRESS MEMRY Current sensor status READY TO TEST are Current oven temperature To select another set Graph of stored test parameters To view test s graphical data To access Main Menu options Main Test Screen The Graph key will switch the display to the graphical displays e When you press Graph the Total Moisture Graph appears and the name above the arrow button changes to Next e When you press Next the graph changes to display the rate at which moisture 1s passing over the sensor e Further pressing Next will now toggle between the two graphs e To return to this Main Test Screen press Esc Page 29 The Menu key brings up a screen s
45. replacement of the Hydrophobic Filter is available and recommended Q How do I change the filter Not on all instruments 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 Customer Service at 800 528 7411 or 602 470 1414 for a replacement e Remove the power cord from its socket CAUTION 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 Remove the cover See ACCESS COVER REMOVAL on page 41 NOTE Not all instruments use a filter but if 1t 1s used it 1s visible at right center above the Sensor Block u m m e The filter or the Luer adaptor for mounting the 8 D I filter will be found near the center on top of the A ENSE Ge y a A Sensor Block Pull the tubing from the adaptor b or filter disk If replacing an old filter rotate it counterclockwise and lift it off Discard the old filter Page 43 e Install a new filter by rotating it clockwise until finger tight Reattach the clear tubing If condensed material is visible in the tubing replace the tubing Note that this is a special type of hydrophobic tubing The proper tubing 15 available from AZI as AZI Part Number 345 0050 e Replace the top cover and pow
46. rials Storing the parameters ensures that each test of the same material will use the same parameters to assure accurate reliable and repeatable testing Weigh the sealed bottle and record the weight of the sample Press START When prompted enter the sealed bottler weight and insert the bottle Hold lever down position bottle between Wires release lever S S TRENT BOUTEILLE EST CHAUD A beep will be heard when the test is complete CAUTION The bottle transport holder lever and bottle are very hot when the test is finished and the transport extends Do not touch the bottle with your bare hands until it has had time to cool A glove may be needed to press the lever to open the bottle holder Use the extractor tab at the bottom of the ramp to lift the bottle from the transport while opening the wire bottle holder with the lever Keep track of the bottles in the order of testing After all tests are complete open and clean out the sample bottles Weigh the bottle cap and septa Weigh everything but the freeze dried sample material Record the weight by test number Go to the STORED DATA MENU and select EMPTY BOTTLE WEIGHT ENTRY EMPTY BOTTLE WEIGHT TEST NUMBER Enter the empty bottle weight for each test in the series This weight will be subtracted from the initial weight the difference will be used as the sample weight in the analysis equations For questions o
47. s visible damage to the VP Series Moisture Analyzer or its power cord unplug and isolate the unit first and then call Customer Service e Do not open the analyzer housing There are no user serviceable parts or adjustments inside the unit except as listed in this manual Any maintenance inside the unit is to be performed in strict adherence to the manual procedures or 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 overheating 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 explosive gases or vapors during the drying process e If flammable or explosive liquids ar
48. sor down to highlight the Diagnostic Menu MAIN MENU MEMORY START MENU Press Selct STORED DATA MENU CALIBRATION MENU SETUP Esc Selct 0 Verify that the View System Sensor Status option is DIAGNOSTIC MENU highlighted MANUAL FLOW CONTROL MENU UIEN SYSTEM ESCEPT IONS Press Selct again to view the Sensor Status Screen PRINT EXCEPTION REPORT Esc Select Down If the FLOW IN is not 75 2 milliliters per minute mL min on a CT 3500 L or 100 10 mL min on a CT 3500 go to How do I Adjust the Dry Air Flow on page 44 CENSOR T SENSOR STATUS RH RH SENSOR 86 388 RH FLOW IN AF5 mL Min FLOW IN i188 mL Min BLOCE RID 868 BLOCK RID 968 C BOTTLE RID 951 C BOTTLE RID 119 RH RID 972 C RH RID 922 C H20 FLOW 9891 1 ug Sec ay ese ca FLOW MODE LOW Esc Units CT 3500 L CT 3500 Return to the Main Test Screen by pressing Esc three times Page 13 7 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 When the display on the Main Test Screen indicates ADD EDIT MEMORY START Ready to Test SENSOR CAL e Press Memry e Then select xDRYNESS TEST Esc Select Down Press START e This test will run for two 2 minutes to test 2 2801 13 42 23 100 for moi
49. ssssssssssssssssssssees 4 25 UNTRODECTION iiiv dq p nests Hate S 6 5 PRINCIPLES OF OPERA LION dee ee eria 7 T UNPXCRING 8 B INSTALLATION sees UU EH Imi EIU REI E 9 CHECK SENSOR 13 14 8 RH SENSOR CALIBRATION CHECK e eee ee eese eese es ssooo sess sese sese eee eese e es ssss sess esee esee esee eese ea sssooo 15 9 RH SENSORCALIBRATION Gi etit HEIN EIE HD en nor EHE 17 IU TTEMPERAXIURECALIDR SEIN 19 IT RUNNING MOISTURE TESTS ic 21 Selecuns Test SEINS codicis ios E 21 Material Di Or 21 Selecting Programmed Test Temperature e eee e eere ee eee eene 22 Selecting Units for the Final Result Display 4 1 eee e eee ee e ee 22 Selecting How to End the GEO 22 Selecting Sample Weight Entry Method ccccccccccssssscsccccccccccccccccccccccccsssssscsccccccscccscssssssees 23 belec uns Bote Purse ontbol iii eiii be aie a RAEE 24 12 DETERMINING OPTIMUM PARAM
50. strument 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 Toggle the power switch at the rear of the unit to the ON I position Page 11 After a quick view of instrument identification and the firmware version Main Test Screen will appear Heater on indicator Programmed oven temperature LAST pope CECI INAL 3 3 H20 v OTRL 3 3 po H20 TIME 99 01 98 Data from last test ast test complete and saved DRYNESS TEST SELECIS PRESS MEMRY Current sensor status READY TO TEST 056 select another set Memry Menu Graph of stored test parameters To view test s arapbhical data Current oven temperature To access Main Menu options Allow the instrument to warm up for 20 minutes Page 12 6 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 From the Main Test Screen press Menu to reveal the 16 27 2000 14 83 13 Main Menu BB8 B2H4 x H20 9679 1 H20 HB H3 H2 SENSOR CAL MEMRY SELECTS PRESS READY TO TEST 25 Menu Graph Move the cur
51. sture that have migrated into the TEST DBUNESS TESTS system CURRENT 6668 6 po H20 TOTAL HHHH H 20 e If this is the first test after changing a portion TIME 88 88 29 of the flow system tubing needle filter etc or if the result is more than 5 ug repeat the Dryness Test up to four 4 times 100 00 uy 00 e If the result does not fall under 5 ug after the 4th test Check for moisture in the dry air supply line gt Check and or change the hydrophobic filter see page 43 Call AZI Customer Service at 800 528 7411 or 602 470 1414 Page 14 BED EAL LO Ji N v3 Uu Ve The water calibration test verifies that the instrument is working properly This test only takes 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 new septa Ensure the septum is installed with the smooth shiny Teflon liner to the inside of the bottle to prevent moisture from the soft plastic from affecting the result Carefully remove a 1 0 ul Microcap AZI P N 990 0150 from the storage bottle Use tweezers to handle the tube 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 AE Pull
52. t Isolate this equipmen from HAZARDOUS LIVE voltage bolora ALLE A T s RA aS ta e Unplug the power cable e Remove the cover See ACCESS COVER REMOVAL on page 41 NOTE Not all instruments use a Hydrophobic Filter but if it is used it is visible at right center above the Sensor Block e Examine the filter and tubing Ifa deposit or discoloration is observed in the clear 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 42 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 is ready for use Factory
53. 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 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 Install a dry cap and septum on the sample bottle with the smooth shiny side of the septum to the inside of the bottle Gently place the sample bottle onto the transport so that the tube rests toward the neck of the bottle as shown Page 15 When READY TEST 1 displayed the Main Test Screen e Press Memry e Highlight RH SENSOR CAL e Press START Accuracy of results should be within five 5 percent of the capillary capacity usually 1000 micrograms 950 to 1050 ug If using a different value capillary tube use 5 of the value listed on the container for the tolerance Allow the test to proceed until completed It should take five to seven 5 to 7 minutes If desired perform four more calibration tests and calculate the statistics Calculations must be performed by hand if
54. tured 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 follow gt For cylinder applications Multi stage Gas Regulator for Compressed Air Cylinder VWR 55850 474 or equivalent For supplied gas sources Matheson Gas Products Model 3473 Single Stage Line Regulator or equivalent e Connecting tubing must be AZI P N 345 0050 clear impermeable tubing unless otherwise indicated to prevent introducing moisture into the carrier gas system Tubing size is 1 8 ID X 1 4 OD e desiccant bed is recommended to remove any moisture that may be present in the carrier gas supply A desiccant kit 1s available from AZI as Kit Desiccator Inline P N Y990 0116 As illustrated below the desiccant is placed just before the inlet connection of the instrument The desiccant turns from blue to pink as it absorbs moisture When the entire column of desiccant 1 pink it will no longer absorb moisture and the desiccant must be replaced or regenerated to restore the drying capacity Page 9 e Instructions on the Drierite website tell how to regenerate the Drierite for continued use For further information contact W A Hammond Drierite Co Ltd at 937 376 2927 or at www drierite com The following diagrams are not to scale but illustrate th
55. tween 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 Rx and set the rate ending criteria value to ten times the sensitivity value used in the KF equipment Example Karl Fisher VAPOR PRO Rx Sensitivity setting 0 1 ug sec 1 ug sec Sample Size 0 5g 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 Minimum Sample Grams Expected Moisture Example Expected Moisture 1 0 05 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 Grams Expected Moisture Example Expected Moisture 1 0 05 Maximum Sample 0 1 05 2 0 grams Page 25 The following table gives general guidance for the selection of sample size for various expected moisture levels Table 1 Sample Size Expected Moisture Use 001 015 or 50 150 ppm 5 6 gr
56. y low moisture levels A revolutionary moisture analyzer with a detection limit of 100 ppm the Computrac VAPOR PRO Rx uses a sensor based technology and correlates to the Karl Fischer KF coulometric titration method with an oven attachment in precision and accuracy The analyzer is simple to operate minimizes consumables and does not utilize reagents Principles of Operation The Computrac VAPOR PRO Rx 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 is 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 1 collected to allow accurate determination of the sample s moisture content The heating range of the Computrac VAPOR PRO Rx 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 lab or production floor use the Computrac VAPOR PRO Rx 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 ma
57. ze any variation in carrier gas moisture levels e Goto the memory start list and select DRYNESS TEST Press Start e Periodically examine the rate graph display to see if the moisture rate is falling Normally the rate will begin to decline after 30 seconds and eventually will fall to less than 1 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 1 present in the system and must be removed before the system will dry out Page 38 What if the instrument indicates low flow when the input pressure is adequate A 1 The needle may be clogged Use the following procedure to clean the needle assembly and sensor chamber For assistance call AZI Customer Service at 800 528 7411 or 602 470 1414 Set instrument oven temperature to 80 C or below Obtain several ounces of isopropyl alcohol IPA Fill a sample bottle 1 2 to full with IPA fit with a cap and septum Place an empty sample bottle at the outlet port at the back of the instrument to catch expelled solvent e From the MAIN TEST SCREEN navigate MENU DIAGNOSTIC MENU gt MANUAL FLOW CONTROL MENU and switch the MANUAL FLOW CONTROL to BOTTLE PURGE e After 5 10 seconds solvent should begin to be expelled from the outlet port at the back of the instrument e When solvent expulsion slows or stops switch MANUAL FLOW CONTROL to TRANSPORT OUT Remove the sample bottle
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