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Percent Oxygen Analyzer

Operation  4

4-3

Teledyne Analytical Instruments

Figure 4-1:  Hierarchy of Functions and Subfunctions

Each of these functions is described in greater detail in the following

procedures. The VFD screen text that accompanies each operation is repro-
duced, at the appropriate point in the procedure, in a 

Monospaced

 type

style. Pushbutton names are printed in 

Oblique

 type.

4.3

The 

System Function

The subfuctions of the 

System

 function are described below. Specific

procedures for their use follow the descriptions:

Auto-Cal

: Used to define an automatic calibration sequence

and/or start an Auto-Cal.

PSWD

Security can be established by choosing a 5 digit

password (

PSWD

) from the standard ASCII character set. (See

Installing or Changing a Password, below, for a table of ASCII
characters available.) Once a unique password is assigned and

Contrast Function is 

DISABLED

(Refer to Section 1.6)

Содержание 3000PA-EU

Страница 1: ...UIRED WHEN SERVICING THIS SYSTEM HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PER SIST FOR A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED ONLY AUTHORIZED PERSONNEL S...

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Страница 5: ...dimensions shape or weight of any parts in so far as such alterations do not adversely affect our warranty ImportantNotice This instrument provides measurement readings to its user and serves as a to...

Страница 6: ..._ includesthefollowingoptions 3000PA C Inadditiontoallstandardfeatures thismodelalsohas separateportsforzeroandspangases andbuilt in controlvalves Theinternalvalvesareentirelyunderthe controlofthe3000...

Страница 7: ...o do so may compromise the safe operation of the equipment CAUTION Risk of Electric Shock COMBUSTIBLE GAS USAGE WARNING DANGER This is a general purpose instrument designed for usage in a nonhazardous...

Страница 8: ...ns 2 3 2 2 4 The Effect of Pressure 2 4 2 2 5 Calibration Characteristics 2 4 2 2 6 Micro Fuel Cell Class 2 5 2 3 Sample System 2 6 2 4 Electronics and Signal Processing 2 8 3 Installation 3 1 Unpacki...

Страница 9: ...16 4 6 3 Fixed Range Analysis 4 16 4 7 The Analyze Function 4 17 4 8 Signal Output 4 17 Maintenance 5 1 Routine Maintenance 5 1 5 2 Cell Replacement 5 1 5 2 1 Storing and Handling Replacement Cells 5...

Страница 10: ...t 1 2 TypicalApplications A few typical applications of the Model 3000PA are Monitoring inert gas blanketing Air separation and liquefaction Chemicalreactionmonitoring Semiconductormanufacturing Petro...

Страница 11: ...gnostic testing at startup and on demand with continuous power supply monitoring CE Compliance RS 232 serial digital port for use with a computer or other digital communication device Analog outputs f...

Страница 12: ...mbination For example the C and V options are combined as Model 3000PA C V 1 5 Front Panel Operator Interface The standard 3000PA is housed in a rugged metal case with all con trols and displays acces...

Страница 13: ...Display The meter display is a LED device that produces large bright 7 segment numbers that are legible in any lighting environment It produces a continuous readout from 0 100 It is accurate across a...

Страница 14: ...he rear panel shown in Figure 1 2 contains the gas and electrical connectors for external inlets and outlets The Zero and Span gas connec tors and the Current signal outputs are optional and may not a...

Страница 15: ...pment that instrument is being calibrated and readings are not monitoring sample Range ID Contacts Four separate dedicated range relay contacts Low Medium High Cal Network For future expansion Not imp...

Страница 16: ...zer and accurately processes the sampled data The microprocessor controls all signal processing input output and display functions for the analyzer 2 2 Micro Fuel Cell Sensor 2 2 1 Principles of Opera...

Страница 17: ...ctively sealed although one end is permeable to oxygen in the sample gas The other end of the cell is a contact plate consisting of two concentric foil rings The rings mate with spring loaded contacts...

Страница 18: ...thode and anode are submerged in this common pool They each have a conductor connecting them to one of the external contact rings on the contact plate which is on the bottom of the cell 2 2 3 Electroc...

Страница 19: ...the sample has not changed It is therefore important that the sample pressure at the fuel cell usually vent pressure remain constant betweencalibrations 2 2 5 Calibration Characteristics Given that th...

Страница 20: ...e performance for any given sample conditions A few typical Micro Fuel Cells are listed below with their typical use and electrical specifications 2 2 6 1 Class A 3 Cell The class A 3 cell is for use...

Страница 21: ...Cell The class B 1 cell is for use in applications where it is exposed to less than 0 1 of carbon dioxide and where a longer response time is accept able in order to have a longer cell life Nominal o...

Страница 22: ...upplied with each instrument The sample or calibration gas flow through the system is monitored by a flow meter downstream from the cell Figure 2 4 shows the piping layout for the standardmodel Figure...

Страница 23: ...pplied from a universal power supply module designed to be compatible with any international power source Figure 2 6 shows the location of the power supply and the main electronic PC boards Figure 2 6...

Страница 24: ...essing electronics including the microprocessor analog to digital and digital to analog converters are located on the motherboard at the bottom of the case The preamplifier board is mounted on top of...

Страница 25: ...he cell output due to the same temperature changes The result is a signal that is temperature independent The output from the second stage amplifier is sent to an 18 bit analog to digital converter co...

Страница 26: ...shipping agent 3 2 Mounting the Analyzer The Model 3000PA is for indoor use in a general purpose area It is NOT for use in hazardous environments of any type The standard model is designed for flush p...

Страница 27: ...button in the center of the latch upper right corner is pressed all the way in with a narrow gauge tool less than 0 18 inch wide such as a small hex wrench or screwdriver Allow clearance for the door...

Страница 28: ...or high pressure 5 to 50 psig applica tions use the restrictor that has a blue sticker on the body For pressurized service use the restrictor without the blue dot and union from the restrictor kit and...

Страница 29: ...stall a bypass in the sampling system upstream of the analyzer input Note If the unit is for vacuum serice the above numbers apply instead to the vacuum at the EXHAUST OUT connector de scribed below w...

Страница 30: ...ord receptacle accepts US or European size fuses A jumper replaces the fuse in whichever fuse receptacle is not used Fuses are not installed at the factory Be sure to install the proper fuse as part o...

Страница 31: ...relay contacts Each set of three pins provides one set of Form C relay contacts Each relay has both normally open and normally closed contact connections The contact connections are shown in Table 3 2...

Страница 32: ...or remote control of calibration See Remote Calibration Protocol below See Table 3 3 for pin connections Zero Floating input 5 to 24 V input across the and pins puts the analyzer into the Zero mode Ei...

Страница 33: ...s release it If the command is continued until after the zero or span is complete the calibration will repeat and the Cal Relay Contact CRC will closeagain Forexample 1 Test the CRC When the CRC is op...

Страница 34: ...his printing this port is not yet functional It is to be used for future options to the instrument Pins 13 and 29 Remote Valve Connections The 3000PA is a single chassis instru ment which has no Remot...

Страница 35: ...It requires a standard 9 pin D connector The data is status information in digital form updated every two seconds Status is reported in the following order The concentration in percent The range in u...

Страница 36: ...ce it is expended or if the cell is exposed to air for too long the Micro Fuel Cell will need to be replaced The cell could also require replace ment if the instrument has been idle for too long When...

Страница 37: ...3 Installation 3 Installation 3 Installation 3 Installation 3 Installation Model 3000PA 3 12 Teledyne Analytical Instruments...

Страница 38: ...e analysis ranges Then choose autoranging or select a fixed range of analysis as required Set alarm setpoints and modes of alarm operation latching failsafe etc Before you configure your 3000PA these...

Страница 39: ...he normal operating mode The analyzer monitors the oxygen content of the sample displays the percent of oxygen and warns of any alarm conditions System The system function consists of six subfunctions...

Страница 40: ...utton names are printed in Oblique type 4 3 The System Function The subfuctions of the System function are described below Specific procedures for their use follow the descriptions Auto Cal Used to de...

Страница 41: ...one After a unique password is assigned to defeat the security the password must be changed back to TBEAI Logout Logging out prevents an unauthorized tampering with analyzersettings More Select and en...

Страница 42: ...et OFF to ON if a zero interval is entered A Span Every or Zero Every screen appears Span Every 0 d Start 0 h from now Use arrows to set an interval value then use arrows to move to the start time val...

Страница 43: ...the arrow keys to scroll the blinking over to PSWD and press Enter to select the password function Either the default TBEAI password or AAAAA place holders for an existing password will appear on scre...

Страница 44: ...sting pass word and move on If you chose Enter to change the password the password assignment screenappears T B E A I ENT To Proceed or A A A A A ENT To Proceed Enter the password using the arrow keys...

Страница 45: ...ich alarm itis 0 0 Anlz A L 1 Note If you log off the system using the logout function in the system menu you will now be required to re enter the password to gain access to Span Zero Alarm and Range...

Страница 46: ...Use the arrow keys to blink More then press Enter Version Self Test Cell Output A Use the arrow keys again to move the blinking to the Self Test function The screen will follow the running of the dia...

Страница 47: ...n turning it back on Readjust the gas pressure into the analyzer until the flowrate as read on the analyzer s SLPM flowmeter settles between 0 5 and 2 4 SLPM ap proximately1 5scfh If you are using pas...

Страница 48: ...to select whether the span calibration is to be performed automatically or manually Use the arrow keys to toggle between AUTO and MAN span settling Stop when AUTO appears blinking on the display Span...

Страница 49: ...oprocessor samples the output at a predeterminedrate Itcalculatesthedifferencebetweensuccessivesamplings and displays this difference as Slope on the screen It takes several seconds forthefirstSlopeva...

Страница 50: ...ou want the alarms to be set as Both high high and high high alarms or One high and one low alarm or Both low low and low low alarms 2 Are either or both of the alarms to be configured as failsafe In...

Страница 51: ...his screen Value of the alarm setpoint AL 1 oxygen Out of range direction HI or LO Defeated Dft Y N Yes No Failsafe Fs Y N Yes No Latching Ltch Y N Yes No To define the setpoint use the arrow keys to...

Страница 52: ...The autoranging feature can be overridden so that analog output stays on a fixed range regardless of the oxygen concentration detected If the concentration exceeds the upper limit of the range the DC...

Страница 53: ...EN drop back down into the special 25 cal range Once the oxygen concentration drops back down into your highest range setting the analyzer will automatically switch back to that range CAUTION While th...

Страница 54: ...ton in many cases also switches the analyzer back to the Ana lyze function Alternatively you can press the Analyze button at any time to return to analyzing your sample 4 8 Signal Output The standard...

Страница 55: ...oncentration it is necessary to know what range the instrument is currently on especially when the analyzer is in the autorangingmode To provide an indication of the range a second pair of analog outp...

Страница 56: ...Percent Oxygen Analyzer Operation 4 4 19 Teledyne Analytical Instruments...

Страница 57: ...4 Operation 4 Operation 4 Operation 4 Operation 4 Operation Model 3000PA 4 20 Teledyne Analytical Instruments...

Страница 58: ...s replaced The spent fuel cell should be discarded according to local regulations This section describes fuel cell care as well as when and how to replace it 5 2 1 Storing and Handling Replacement Cel...

Страница 59: ...000PA analysis readings drift downward uncharacteristically try recalibration If recalibration raises the readings temporarily suspect the cell but first check for leaks downstream from the cell where...

Страница 60: ...xisting cell 1 Remove power to the instrument by unplugging the power cord at the power source 2 Open the front panel door by pressing the release button on the top right corner of the door all the wa...

Страница 61: ...5 Maintenance 5 Maintenance 5 Maintenance 5 Maintenance 5 Maintenance Model 3000P 5 4 Teledyne Analytical Instruments Figure 5 1 Removing or Installing a Micro Fuel Cell...

Страница 62: ...fic Model Information and note any Addendum that might be attached to the front of this manual for special information applying to the Cell in your instrument The warranty period for spare cells begin...

Страница 63: ...merican and European fuses remove the single retaining screw flip Fuse Block over 180 degrees and replace screw 3 Replace fuse as shown in Figure 5 3 4 Reassemble Housing as shown in Figure 5 2 Americ...

Страница 64: ...ther internal components are accessed by removing the rear panel and sliding out the entire chassis See Figure 5 4 below The gas piping is illustrated in Figure 2 4 and the major electronic components...

Страница 65: ...ning If instrument is unmounted at time of cleaning disconnect the instru ment from the power source Close and latch the front panel access door Clean outside surfaces with a soft cloth dampened sligh...

Страница 66: ...ace the sensor Possible Cause Atmospheric Oxygen may be diffusing in through the vent and affecting the oxygen level which the sensor sees Solution Increase flow rate and or length or vent tubing in o...

Страница 67: ...5 Maintenance 5 Maintenance 5 Maintenance 5 Maintenance 5 Maintenance Model 3000P 5 10 Teledyne Analytical Instruments...

Страница 68: ...Block Nylon 90 Response Time 10 seconds at 25 C 77 F Ranges Threeuserdefinablerangesfrom0 1 to 0 100 plus air calibration range of 0 25 Alarms One system failure alarm contact to detect powerfailure T...

Страница 69: ...of full scale over operating temperature range on factory default analysis ranges once thermal equilibrium has been reached Analog outputs 0 1 V dcpercent of range Standard 0 1 V dc range ID Standard...

Страница 70: ...1 C6689 B1 Micro FuelCell foroptionssee 1 A68729 Restrictor Kit __________________ Order B or C not both Check Specific Model Information for cell in your instrument NOTE Orders for replacement parts...

Страница 71: ...Appendix Appendix Appendix Appendix Model 3000PA Teledyne Analytical Instruments Figure A 1 Single and Dual 19 Rack Mounts A 3 Drawing List D 66317 FinalAssembly OutlineDrawing A 4 19 inch Relay Rack...

Страница 72: ...s resultinginhigherO2reading andshortercelllife Tousea3000 seriesanalyzeratacellpressureotherthanatmospheric theanalyzermustbe calibratedwithaknowncalibrationgasatthenewcellpressuretoadjustforthe diff...

Страница 73: ...st be included in the samplelinepriortotherestrictor a60micronfilterisrecommended 3000PAEXAMPLES Example1 withaincoming pressureof10psigthestdrestrictor blue dot willprovideaflowrateof 76SLPM Up strea...

Страница 74: ...CE Operationwithoutarestrictordeviceisnotrecommendasmentioned above A3000PA withoutanyflowrestrictordevicewastestedon11 19 97 This results in a flow rate of 2 4 SLPM 1 PSIG This is a cv of 0 023 for t...

Страница 75: ...rrow keys to toggle between AUTO and MAN zero settling Stop when AUTO appears blinking on the display Zero Settling AUTO ENT To Begin Press Enter to begin zeroing Zero Slope ppm s The beginning zero l...

Страница 76: ...hange as Slope a value in parts per million per second ppm s Zero Slope ppm s NOTE It takes several seconds for the true Slope value to display Wait about 10 seconds Then wait until Slope is sufficien...

Страница 77: ...A 10 Appendix Appendix Appendix Appendix Appendix Model 3000PA Teledyne Analytical Instruments...

Страница 78: ...vironmental Health and Safety Extension 230 Date Prepared 04 26 95 Section I Product Identification Section III Physical Chemical Characteristics Section II Hazardous Ingredients Composition Material...

Страница 79: ...us Polymerization Will not occur Conditions to Avoid Routes of Entry Inhalation Highly unlikely Ingestion May be fatal if swallowed Skin The electrolyte potassium hydroxide is corrosive skin contact m...

Страница 80: ...inutes and remove all contaminated clothing Get medical attention immedi ately If ingested give large amounts of water and DO NOT INDUCE VOMITING Obtain medical attention immedi ately If inhaled remov...

Страница 81: ...Information RQ Hazardous Waste Solid N O S Lead Class 9 NA3077 PG III Follow all Federal State and Local regulations Section X References Material Safety Data Sheets from J T Baker Chemical Aldrich Ma...

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