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1-3

Ultra Trace Oxygen Analyzer

Introduction 1

Teledyne Analytical Instruments

1.5

Front Panel (Operator Interface)

The standard Ultra Trace 3000 is housed in a rugged metal case with all

controls and displays accessible from the front panel. See Figure 1-1. The
front panel has thirteen buttons for operating the analyzer, a digital meter, an
alphanumeric display, and a window for viewing the sample flowmeter.

Function Keys: Six touch-sensitive membrane switches are used to

change the specific function performed by the analyzer:

Figure 1-1: Model Ultra Trace 3000 Front Panel

•

Analyze

Perform analysis for oxygen content of a sample gas.

•

System

Perform system-related tasks (described in detail in
chapter 4, Operation.).

•

Span

Span calibrate the analyzer.

•

Zero

Zero calibrate the analyzer.

Door Latch

Sample System
Flow Indicator

Standby Switch

Function Buttons

Data Entry Buttons

Digital Meter

Alphanumeric
Display

SET FLOW

Содержание Ultra Trace 3000

Страница 1: ...PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST FOR A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECT...

Страница 2: ...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 tool by which valuable...

Страница 3: ...elow withcheckboxes Anythatareincorporatedinthe instrumentforwhichthismanualissuppliedareindicatedbyacheckmarkinthe box InstrumentSerialNumber _______________________ OptionsIncludedintheInstrumentwit...

Страница 4: ...Characteristics 2 4 2 2 6 TEC Cooling System 2 4 2 3 Sample System 2 5 2 4 Electronics and Signal Processing 2 8 3 Installation 3 1 Unpacking the Analyzer 3 1 3 2 Mounting the Analyzer 3 1 3 3 Rear Pa...

Страница 5: ...s Function 4 17 4 7 The Range Function 4 20 4 7 1 Setting the Analog Output Ranges 4 20 4 7 2 Fixed Range Analysis 4 21 4 8 The Analyze Function 4 23 4 9 Signal Output 4 23 Maintenance 5 1 Routine Mai...

Страница 6: ...as leaks always exist The customer should ensure that the principles of operation of this equipment is well understood by the user Misuse of this product in any manner tampering with its components or...

Страница 7: ...A few typical applications of the Model Ultra Trace 3000 are Monitoringinertgasblanketing Airseparationandliquefaction Chemicalreactionmonitoring Semiconductormanufacturing Petrochemicalprocesscontro...

Страница 8: ...lyzer to automatically select the proper preset range for a given measurement Manual override allows the user to lock onto a specific range of interest Twoadjustableconcentrationalarmsandasystemfailur...

Страница 9: ...y and a window for viewing the sample flowmeter Function Keys Six touch sensitive membrane switches are used to change the specific function performed by the analyzer Figure 1 1 Model Ultra Trace 3000...

Страница 10: ...lighting It produces a continuous readout from 0 999 ppb and then switches to a continuous ppm readout from 0 9999 9 ppm It is accurate across all analysis ranges without the discontinuity inherent in...

Страница 11: ...inlets and outlets Some of those depicted are op tional and may not appear on your instrument The connectors are described briefly here and in detail in chapter 3 Installation Figure 1 2 Model Ultra...

Страница 12: ...tify external equipment 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 I O Serial...

Страница 13: ...he 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 Operation The oxygen sensor used in...

Страница 14: ...environment or sample stream It is effectively 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...

Страница 15: ...ach 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 Electrochemical Reactions The sample gas diffuses through the Te...

Страница 16: ...the surface of the Micro Fuel Cell input is constant a convenient characteristic of the cell is that the current produced in an external circuit is directly proportional to the rate at which oxygen mo...

Страница 17: ...equired to maintain the hot side at an acceptable temperature The hot side temperature limits the overall performance of the TEC module The fan draws air into the bottom of the analyzer this air is fo...

Страница 18: ...e 3000 sample system is designed and fabricated to ensure that the oxygen concentration of the gas is not altered as it travels through the sample system The sample system for the standard instrument...

Страница 19: ...Operational Theory 2 Teledyne Analytical Instruments Figure 2 5 Flow Diagram Sample Under Pressure Standard Model Ultra Trace 3000 Figure 2 5 1 Flow Diagram Sample at Zero Pressure Model Ultra Trace 3...

Страница 20: ...pply 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 The signal processing electronics includin...

Страница 21: ...Ultra Trace 3000 Electronics Power Supply A to D Converter Current to Voltage Amplifier Second Stage Amplifier System Failure Alarm Displays Micro Processor Processing Auto Range 0 1 V 4 20 mA D to A...

Страница 22: ...y the microprocessor The digital concentration signal along with input from the control panel is processed by the microprocessor and appropriate control signals are directed to the display alarms and...

Страница 23: ...eport any damage or shortages to the shipping agent 3 2 Mounting the Analyzer The Model Ultra Trace 3000 is for indoor use in a general purpose area It is NOT for hazardous environments of any type Th...

Страница 24: ...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 to open in a 90 degree arc of radius 7 1...

Страница 25: ...E IN In the standard model gas connections are made at the SAMPLE IN and EXHAUST OUT connections Calibration gases must be Tee d into the Sample inlet with appropriate valves A VCR fitting is pro vide...

Страница 26: ...bles Also use plugs that provide excellent EMI RFI protection The plug case must be connected to the cable shield and it must be tightly fastened to the analyzer with its fastening screws Ultimately i...

Страница 27: ...ll scale ppm Full scale 100 of programmable range 0 1 V dc Range ID 0 25 V Low Range 0 5 V Medium Range 0 75 V High Range 1 V Air Cal Range 4 20 mA dc Range Current increases linearly with increasing...

Страница 28: ...configured out defeated SystemAlarm Actuates when DC power supplied to circuits is unacceptable in one or more parameters Permanently configured as failsafe and latching Cannot be de feated Actuates i...

Страница 29: ...The Coptioninternalvalvesoperateautomatically Cal Contact This relay contact is closed while analyzer is spanning and or zeroing See Remote Calibration Protocol below Table 3 3 Remote Calibration Conn...

Страница 30: ...nding order Low range is as signed to Range 1 ID Medium range is assigned to Range 2 ID and High range is assigned to Range 3 ID The fourth range is reserved for the Air Cal Range 25 Table 3 4 lists t...

Страница 31: ...ut lines is 100 mA If two lines are ON at the same time each must be limited to 50 mA etc If more current and or a different voltage is required use a relay power amplifier or other matching circuitry...

Страница 32: ...shipped separately inside two bags filled with oxygen free inert gas Extreme care must be taken to ensure that the cell is exposed to air for the very minimum amount of time including during installa...

Страница 33: ...Ultra Trace Oxygen Analyzer Installation 3 3 11 Teledyne Analytical Instruments Figure 3 8 Installing the Micro Fuel Cell COLLAR CELL BLOCK SENSOR O RING CELL HOLDER...

Страница 34: ...e and in most cases quickly saturate the cell with oxygen which can then require a quite long purge down time for the sensor when then exposed to low oxygen concentrations In the event that flow is to...

Страница 35: ...ranging or select a fixed range of analysis as required Set alarm setpoints and modes of alarm operation latching failsafe etc Before you configure your Ultra Trace 3000 these default values are in ef...

Страница 36: ...any alarm conditions System The system function consists of six subfunctions that regulate the internal operations of the analyzer Auto Cal setup Show negative readings Passwordassignment Set digital...

Страница 37: ...table of ASCII characters available Once a unique password is assigned and activated the operator MUST enter the UNIQUE password to gain access to set up functions which alter the instrument s operat...

Страница 38: ...ards and amplifiers Version Displays Manufacturer Model and Software Version ofinstrument Neg The operator selects whether display can show negative oxygen readings or not TRAK HLD The operator sets w...

Страница 39: ...the second line of the TRAK HLD menu after the analyzer returns to the Analyze mode The factory default is three minutes but the delay time is program mable To adjust to delay time use the Left or Rig...

Страница 40: ...to Cal Press System again choose Auto Cal and press Enter again When the Span Zero values screen appears use the arrows to blink the Span or Zero OFF ON field Use arrows to set the OFF ON field to ON...

Страница 41: ...hether or not a password has been previously installed T E T A I Enter PWD or A A A A A Enter PWD The screen prompts you to enter the current password If you are not using password protection press En...

Страница 42: ...ord the password assignment screenappears T E T A I ENT To Proceed or A A A A A ENT To Proceed Enter the password using the arrow keys to move back and forth between the existing password letters and...

Страница 43: ...ired to re enter the password to gain access to Span Zero Alarm and Range functions 4 3 4 Logout The Logout function provides a convenient means of leaving the analyzer in a password protected mode wi...

Страница 44: ...eys again to move the blinking to the Self Test function The screen will follow the running of the diagnostic RUNNING DIAGNOSTIC Testing Preamp 83 During preamp testing there is a countdown in the low...

Страница 45: ...tely 45 sec response time for the duration of the over range or upset condition This feature allows the ana lyzer to quickly respond to and track an upset condition 4 4 Calibration of the Analyzer The...

Страница 46: ...e sensor to determine when the output is within the accept able range for zero In the manual mode the operator determines when the reading is within the acceptable range for zero Make sure the zero ga...

Страница 47: ...ing screens appears The number in the upper left hand corner is the first stage zero offset The microprocessor samples the output at a prede termined rate It calculates the differences between success...

Страница 48: ...tering the Zero mode 4 4 2 Span Cal The Span button on the front panel is used to span calibrate the ana lyzer Span calibration can be performed using the automatic mode where an internal algorithm co...

Страница 49: ...m Span Slope ppm s The beginning span value is shown in the upper left corner of the display As the span reading settles the screen displays and updates informa tion on Slope Spanning automatically en...

Страница 50: ...changes by 1 or less of the full scale of the range being calibrated for a period of ten minutes it is sufficiently stable Once Enter is pressed the Span reading changes to the correct value The instr...

Страница 51: ...from TATAI 2 The analyzer is capable of handling the switching of streams without effecting the sensitivity of the cell This switching of streams between nitrogen and helium will not require SPAN adju...

Страница 52: ...ntration rises above the setpoint Setting an alarm as LOW triggers the alarm when the oxygen concentration falls below the setpoint Decide whether you want the alarms to be set as Both high high and h...

Страница 53: ...on this screen Value of the alarm setpoint AL 1 ppm oxygen value can be set from 0 to 999 ppb 1 000 1000 00 ppm Out of range direction HI or LO Defeated Dft Y N Yes No Failsafe Fs Y N Yes No Latching...

Страница 54: ...range If the concentration falls to below 90 of full scale of the next lower range the instrument will switch to that range A corresponding shift in the DC percent of range output and in the range ID...

Страница 55: ...range can be set between 10 and 1000 ppm 4 7 2 Fixed Range Analysis The autoranging mode of the instrument can be overridden forcing the analyzer DC outputs to stay in a single predetermined range To...

Страница 56: ...wo isolated 4 20 mA dc current outputs one concentration and one range ID See Rear Panel in Chapter 3 Installation for illustration The signal output for concentration is linear over the currently sel...

Страница 57: ...ge a second pair of analog output terminals are used They generate a steady preset voltage or current when using the current outputs to represent a particular range The following table gives the range...

Страница 58: ...4 Operation Model Ultra Trace 3000 4 24 Teledyne Analytical Instruments...

Страница 59: ...ean When the cell reaches the end of its useful life it is replaced The spent fuel cell should be dis carded according to local regulations This section describes fuel cell care as well as when and ho...

Страница 60: ...er the cell will require an excessively long time to reach zero after installation 1 2 weeks 5 2 2 When to Replace a Cell Cell failure in the Ultra Trace 3000 is usually characterized by a significant...

Страница 61: ...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 way in with a n...

Страница 62: ...the front of this manual for special information applying to your instrument With regard to spare cells warranty period begins on the date of ship ment The customer should purchase only one spare cell...

Страница 63: ...er off as shown in Figure 5 2 Figure 5 2 Removing Fuse Block from Housing 2 To change between American and European fuses remove the single retaining screw flip Fuse Block over 180 degrees and replace...

Страница 64: ...0 OK 1 Zero too high 2 Amplifier output doesn t match test input 3 Both Failed 5 5 Major Internal Components The Micro Fuel cell is accessed by unlatching and swinging open the front panel as describ...

Страница 65: ...the rear panel remove only the 14 screws marked with an X 5 6 Cleaning If instrument is unmounted at time of cleaning disconnect the instru ment from the power source Close and latch the front panel a...

Страница 66: ...ontacts or replace 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 v...

Страница 67: ...steel 90 Response Time Less than 30 seconds at 25 C 77 F on 10 ppm range 120 seconds on 250 ppb range programmable response in ppb range Ranges Three user definable ranges from 0 250 ppb to 0 1 000 p...

Страница 68: ...stant temperature 10 ppb over temperature variation of 20 30 C 15 ppb over temperature variation of 15 35 C Allaccuracyspecificationsarecontingent upon the completion of zero ans span calibra tion All...

Страница 69: ...ring 1 C6689 B2CXL Micro FuelCell donotstoreformore than6months 1 CP1798 50 pin D sub interface connector 1 F1498 Fan 50 CP1799 Pins for CP1798 connector A minimum charge is applicable to spare parts...

Страница 70: ...4 Appendix Model Ultra Trace 3000 Teledyne Analytical Instruments A 3 Drawing List B 71228 PipingDiagram A 4 19 inch Relay Rack Panel Mount Figure A 1 Single 19 Rack Mounts dimensions in mm 5 75 8 72...

Страница 71: ...ssuresotherthanatmosphericthediffusionrateof O2willbedifferentthanoptimumvalue HigherpressureswillproducefasterO2 diffusionrates resultinginhigherO2reading andshortercelllife Tousea3000 seriesanalyzer...

Страница 72: ...se thesampleflowratetotheanalyzerbyafactoroften Aby passprovidesa sampleflowpatharoundtheanalyzerof 2 18SCFH typically CONVERSIONS 1 PSI 2 04 INCHES OF MERCURY in Hg 1 SCFH 0 476 SLPM NOTE The MSDS on...

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