OPERATING INSTRUCTIONS Model 3010MA Paramagnetic Oxygen Purity Analyzer P/N M3010MA 05/07/01 ECO# 01-0055 DANGER Toxic gases and or flammable liquids may be present in this monitoring system. Personal protective equipment may be required when servicing this instrument. Hazardous voltages exist on certain components internally which may persist for a time even after the power is turned off and disconnected. Only authorized personnel should conduct maintenance and/or servicing.
Model 3010MA Copyright © 2001 TELEDYNE Analytical Instruments All Rights Reserved. No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language or computer language in whole or in part, in any form or by any means, whether it be electronic, mechanical, magnetic, optical, manual, or otherwise, without the prior written consent of Teledyne Analytical Instruments, 16830 Chestnut Street, City of Industry, CA 91749-1580.
Paramagnetic O2 Purity Analyzer Safety Messages Your safety and the safety of others is very important. We have provided many important safety messages in this manual. Please read these messages carefully. A safety message alerts you to potential hazards that could hurt you or others. Each safety message is associated with a safety alert symbol. These symbols are found in the manual and inside the instrument.
Model 3010MA POSSIBLY ACCOMPANIED WITH HAZARDOUS CONSEQUENCES. This manual provides information designed to guide you through the installation, calibration and operation of your new analyzer. Please read this manual and keep it available. Occasionally, some instruments are customized for a particular application or features and/or options added per customer requests.
Paramagnetic O2 Purity Analyzer Table of Contents Safety Messages .......................................................................... iii Tables.......................................................................................... viii Figures .......................................................................................... ix Preface .......................................................................................... ix Overview x Introduction ..................................
Part 1 Control Unit Model 3010MA 4.1 Introduction 4.2 Using the Data Entry and Function Buttons 4.3 The System Function 4.3.1 Setting the Display 4.3.2 Setting up an Auto-Cal 4.3.3 Password Protection 4.3.3.1 Entering the Password 4.3.3.2 Installing or Changing the Password 4.3.4 Logout 4.3.5 System Self-Diagnostic Test 4.3.6 Version Screen 4.3.7 Display Sensor Output 4.4 The Zero and Span Functions 4.4.1 Span Cal 4.4.1.1 Auto Mode Spanning 4.4.1.2 Manual Mode Spanning 4.5 The Alarms Function 4.
Paramagnetic O2 Purity Analyzer 6.3 6.4 6.5 6.6 6.2.2 Cross Interference Oven and Temperature Controller Sample System Leak Checking the Analysis Unit Initial Sensor Calibration 71 74 75 78 78 Appendix...................................................................................... 81 A-1 Model 3010MA Specifications A-2 Recommended 2-Year Spare Parts List A-3 Drawing List 81 83 84 Index.............................................................................................
Part 1 Control Unit Model 3010MA Tables Table 3-1: Analog Output Connections ......................................... 30 Table 3-2: Alarm Relay Contact Pins ............................................ 31 Table 3-3: Remote Calibration Connections ................................. 32 Table 3-4: Range ID Relay Connections....................................... 33 Table 3-5: 50-Pin Equipment Interface Connector ........................ 35 Table 3-6: Commands via RS-232 Input ................................
Paramagnetic O2 Purity Analyzer Figures Figure 1-1: Model 3010MA Control Unit Front Panel .................... 16 Figure 1-2 Rear Panel of Model 3010MA Control Unit .................. 18 Figure 2-1: Block Diagram for Model 3010MA Control Unit .......... 20 Figure 2-2: Block Diagram for Model 3010MA Analysis Unit......... 20 Figure 2-3: Location of Electronic Components in Control Unit..... 21 Figure 2-4: Block Diagram of the Model 3010MA Electronics .......
Part 1 Control Unit Model 3010MA Preface Overview The Teledyne Analytical Instruments Model 3010MA Paramagnetic Oxygen Purity Analyzer is a versatile microprocessor-based instrument for analyzing the purity of an oxygen bearing gas stream. It is a “split architecture” instrument designed for indoor use in non-hazardous areas. The Control Unit contains the operator interface, electronics and display.
Paramagnetic O2 Purity Analyzer • High resolution, accurate readings of oxygen content • Paramagnetic oxygen sensor • Microprocessor based electronics: 8-bit CMOS microprocessor with 32 kB RAM and 128 kB ROM. • Three output ranges allow best match to users process and equipment: 95-100%, 96-100%, and 98-100% oxygen. • Auto Ranging allows analyzer to automatically select the proper preset range within the 95-100% range of the sensor.
Part 1 Control Unit Teledyne Analytical Instruments Model 3010MA xii
Paramagnetic O2 Purity Analyzer Introduction OPERATING INSTRUCTIONS Model 3010MA Paramagnetic Oxygen Purity Analyzer Part I: Control Unit Teledyne Analytical Instruments 13
Part 1 Control Unit Teledyne Analytical Instruments Model 3010MA 14
Paramagnetic O2 Purity Analyzer Introduction Introduction 1.1 Overview The Teledyne Analytical Instruments Model 3010MA Paramagnetic Oxygen Purity Analyzer is a versatile microprocessor-based instrument for detecting the percentage of oxygen in a gas stream. This part of the manual covers the Model 3010MA flush-panel and/or rack-mount Control Unit. These units are for indoor use in a nonhazardous environment.
Part 1 Control Unit Model 3010MA • Alarms—Set the alarm setpoints and attributes. • Range— Set up the 3 user definable ranges for the instrument. Data Entry Keys: Six touch-sensitive membrane switches are used to input data to the instrument via the alphanumeric VFD display: • Left & Right Arrows—Select between functions currently displayed on the VFD screen. • Up & Down Arrows—Increment or decrement values of functions currently displayed.
Paramagnetic O2 Purity Analyzer Introduction Standby Button: The Standby feature turns off the display and outputs, but circuitry is still operating. It is useful for power saving as well as prolonging the life of the display elements. WARNING: THE INSTRUMENT IS STILL ENERGIZED WHEN THE STANDBY BUTTON IS PRESSED. THE POWER CABLE MUST BE UNPLUGGED TO DISCONNECT POWER FROM THE INSTRUMENT.
Part 1 Control Unit Model 3010MA • Network—For future expansion. Not implemented at this printing. • 50-Pin Equipment Interface Connector—provides access for: • Alarms—2 concentration and 1 system alarm • Analog Outputs—0-1 Vdc concentration and 0 -1 V dc range ID. 4-20 mA concentration and optional 4-20 mA range ID.
Paramagnetic O2 Purity Analyzer Operational Theory Operational Theory 2.1 Introduction The analyzer is composed of three subsystems: 1. Paramagnetic Sensor 2. Sample System 3. Electronic Signal Processing, Display and Control The paramagnetic sensor and the sample system are located in the Analysis Unit while the Electronic Signal Processing, Display and Control systems are housed in the Control Unit.
Part 1 Control Unit Model 3010MA Figure 2-1: Block Diagram for Model 3010MA Control Unit Figure 2-2: Block Diagram for Model 3010MA Analysis Unit Teledyne Analytical Instruments 20
Paramagnetic O2 Purity Analyzer Operational Theory 2.2 Electronics and Signal Processing The Model 3010MAParamagnetic Oxygen Purity Analyzer uses an 8031 microcontroller with 32 kB of RAM and 128 kB of ROM to control all signal processing, input/output, and display functions for the analyzer.
Part 1 Control Unit Model 3010MA When an oxygen level above 95% is present, the paramagnetic sensor in the Analysis Unit generates a voltage. The voltage is passed to the Control Unit via the sensor cable between the Analysis Unit and the Control Unit. A voltage amplifier in the Control Unit conditions the signal and passes it to the 18-bit analog to digital (A/D) converter which is controlled by the microprocessor.
Paramagnetic O2 Purity Analyzer Operational Theory Figure 2-4: Block Diagram of the Model 3010MA Electronics Teledyne Analytical Instruments 23
Part 1 Control Unit Teledyne Analytical Instruments Model 3010MA 24
Paramagnetic O2 Purity Analyzer Installation Installation Installation of the Model 3010MA Analyzer includes: 1. Unpacking 2. Mounting 3. Gas connections 4. Electrical connections 5. Testing the system. 6. Initial Sensor Calibration This chapter covers installation of the Control Unit. The Analysis Unit installation is covered in Part II of this manual. Procedures for the Initial Sensor Calibration is given in Part II Section 6.6. 3.
Part 1 Control Unit Model 3010MA Figure 3-1: Rack Mountable Control and Analysis Units Teledyne Analytical Instruments 26
Paramagnetic O2 Purity Analyzer Installation All operator controls are mounted on the control panel which is shown in Figure 3-2. The panel is hinged on the left edge and doubles as a door to provides access to the display electronics, PCB’s and temperature controller inside the instrument. The door is spring loaded and will swing open when the button in the center of the latch (upper right corner) is pressed all the way in with a narrow gauge tool (less than 0.
Part 1 Control Unit Model 3010MA 3.3 Rear Panel Connections—Control Unit Figure 3-4 shows the Model 3010MA rear panel. On this panel are connectors for interfacing with the Analysis Unit, RS-232 communication, power cord, line voltage switch, input/output connections via the 50-pin equipment interface connector and a gas inlet port for the pressure compensation circuit. Figure 3-4: Rear Panel of the Model 3010MA Control Unit 3.3.
Paramagnetic O2 Purity Analyzer Installation 3.3.2 Electrical Connections—Control Unit CAUTION: FOR SAFE CONNECTIONS, MAKE SURE THAT THERE IS NO UNINSULATED WIRE EXTENDING OUTSIDE OF THE CONNECTORS. ALL CABLES AND CONNECTORS MUST BE IN GOOD CONDITION WITHOUT ANY BROKEN WIRES OR BENT PINS. 3.3.2.1 PRIMARY INPUT POWER The power cord receptacle and fuse block are located in the same assembly. Insert the female plug end of the power cord into the power cord receptacle.
Part 1 Control Unit Model 3010MA are given where each function is described in the paragraphs below. At the end of this section is a complete pin-out description. Figure 3-5: Equipment Interface Connector Pin Arrangement Analog Outputs: There are four dc output signal pins —two pins per output. For polarity, see Table 3-1. The outputs are: 1. 0–1 V dc % of Range: Voltage rises linearly with increasing oxygen, from 0 V at 95% O2 to 1 V at full scale 100% O2. (Full scale is 100% O 2 for all ranges.) 2.
Paramagnetic O2 Purity Analyzer Installation contact connections. The contact connections are shown in Table 3-2. They are capable of switching up to 3 amperes at 250 V ac into a resistive load. Threshold Alarm 1 can be configured as: • High (actuates when concentration is above threshold) or low (actuates when concentration is below threshold). • Failsafe or Non-failsafe. • Latching or Non-latching. • Out (defeated).
Part 1 Control Unit 36 System Alarm, normally closed contact 20 System Alarm, moving contact 37 System Alarm, normally open contact Model 3010MA Digital Remote Cal Inputs: Accept 0 V (off) or 24 V dc (on) inputs for 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. Either side may be grounded at the source of the signal.
Paramagnetic O2 Purity Analyzer Installation When the contact is OPEN, the analyzer is analyzing, the Remote Cal Inputs are being polled, and a zero or span command can be sent. When the contact is CLOSED, the analyzer is already calibrating. It will ignore your request to calibrate, and it will not remember that request. Once a zero or span command is sent, and acknowledged (contact closes), release it.
Part 1 Control Unit 39 Range 2 ID Contact 19 Range 3 ID Contact 18 Range 3 ID Contact 34 Not used in 3010MA 35 Not used in 3010MA Model 3010MA Network I/O: A serial digital input/output for local network protocol. At this printing, this port is not yet functional. It is to be used for future options to the instrument. Pins 13 (+) and 29 (–).
Paramagnetic O2 Purity Analyzer Installation Figure 3-7: FET Series Resistance Below is a table of the complete pin -out connections of the 50-pin equipment interface connector. Table 3-5: 50-Pin Equipment Interface Connector Pin Function Pin 1 26 2 27 Function 3 (+) Range ID, 4-20 mA floating * 28 Threshold Alarm 1 Mov.
Part 1 Control Unit 12 (-) Remote Span Model 3010MA 37 System Alarm, NO Contact 13 38 Range 1 ID Contact 14 39 Range 2 ID Contact 15 Remote ZERO valve (return) 40 Cal Contact 16 Remote SPAN valve (return) 41 Cal Contact 17 Remote SPAN valve (hot) 42 18 Range 3 ID Contact 43 19 Range 3 ID Contact 44 20 System Alarm Moving Contact 45 21 Range 1 ID Contact 46 22 Range 2 ID Contact 47 23 (-) Range ID, 0-1 V dc neg gnd 48 Remote EXHAUST valve (return) 24 (+) % Range, 0-
Paramagnetic O2 Purity Analyzer Installation Table 3-6: Commands via RS-232 Input Command Description as Immediately starts an autospan az Immediately starts an autozero. co Reports "Sensor Output" (voltage output of the sensor itself) in VDC For example— Raw Sensor Output: 1.000 volts st Toggling input. Stops/Starts any status message output from the RS232, until st is sent again. The RS-232 protocol allows some flexibility in its implementation.
Part 1 Control Unit Model 3010MA The Analysis Unit is installed adjacent to the Control Unit usually on the same panel. Refer to Section 3.2 for mounting instructions. An outline drawing D73635, is included in the Drawings section in the rear of this manual which contains a panel cutout diagram. 3.5 Rear Panel Connections—Analysis Unit The Rear Panel of the Analysis Unit is shown in Figure 3-8.
Paramagnetic O2 Purity Analyzer Installation 3.5.1 Gas Connections—Analysis Unit When making gas connections to the fittings on the rear panel of the Analysis Unit: 1. Insert the 1/4 or 1/8 inch tube into the fitting and finger-tighten the nut where the tube cannot be rotated freely. Tighten the nut an additional 1/8 turn beyond finger-tight. 2. When assembling new fittings for the first time: Use a wrench to hold the fitting body and keep it from turning while you tighten the nut using another wrench.
Part 1 Control Unit Model 3010MA 4. Check that sample flow rate is between 300 and 1000 SCCM. CAUTION: FLOW RATES ABOVE 1000 SCCM CAN DAMAGE THE SENSOR! 5. Power up the system, and test it by repeating the SelfDiagnostic Test as described in Chapter 4, Section 4.3.5 Note: To achieve the stated accuracy, this unit must be allowed to reach thermal equilibrium and the sensor must be purged to remove all traces of water vapor. 6.
Paramagnetic O2 Purity Analyzer Operation Operation 4.1 Introduction Once the analyzer has been installed, it can be configured for your application. To do this you will: 1. Set system parameters: 2. Establish a security password, if desired, requiring the operator to log in. 3. Establish and start an automatic calibration cycle, if desired. 4. Calibrate the instrument. 5. Accept the default configuration or define the three user selectable analysis ranges.
Part 1 Control Unit Model 3010MA The Enter button is used to accept any new entries on the VFD screen. The Escape button is used to abort any new entries on the VFD screen that are not yet accepted by use of the Enter button. Figure 4-1 shows the hierarchy of functions available to the operator via the function buttons. Figure 4-1: Hierarchy of Functions Available on the Model 3010MA The six function buttons on the analyzer are: • Analyze. This is the normal operating mode.
Paramagnetic O2 Purity Analyzer • Setup Auto-Cal • Assign Password • Initiate Self-Test • Check software version • View sensor output • Log out. Operation • Zero. Used to set up a zero calibration. • Span. Used to set up a span calibration. • Alarms. Used to set the alarm setpoints and determine whether each alarm will be active or defeated, HI or LO acting, latching, and/or failsafe. • Range.
Part 1 Control Unit Model 3010MA After a password is assigned, the operator must log out to activate it. Until then, anyone can continue to operate the instrument without entering the new password. Only one password can be defined. Before a unique password is assigned, the system assigns TETAI by default. This allows access to anyone. After a unique password is assigned, to defeat the security, the password must be changed back to TETAI.
Paramagnetic O2 Purity Analyzer Operation To setup an Auto–Cal cycle: Choose System from the Function buttons. The VFD will display five subfunctions. Contrast Auto—Cal PSWD Logout More Use < > arrows to blink Auto—Cal, and press Enter. A new screen for Span/Zero set appears. Span OFF Nxt: Zero OFF Nxt: 0d 0h 0d 0h Press < > arrows to blink Span (or Zero), then press Enter again. (You won’t be able to set OFF to ON if a zero interval is entered.) A Span Every ... (or Zero Every ...) screen appears.
Part 1 Control Unit Model 3010MA 4.3.3.1 ENTERING THE PASSWORD To install a new password or change a previously installed password, you must key in and ENTER the old password first. If the default password is in effect, pressing the ENTER button will enter the default TETAI password for you. Press System to enter the System mode. Contrast Auto—Cal PSWD Logout More Use the < > arrow keys to scroll the blinking over to PSWD, and press Enter to select the password function.
Paramagnetic O2 Purity Analyzer Operation 4.3.3.2 INSTALLING OR CHANGING THE PASSWORD If you want to install a password, or change an existing password, proceed as above in Entering the Password. When you are given the opportunity to change the password: Change Password? =Yes =No Press Enter to change the password (either the default TETAI or the previously assigned password), or press Escape to keep the existing password and move on.
Part 1 Control Unit Model 3010MA A A A A A Retype PWD To Verify Wait a moment for the entry screen. You will be given clearance to proceed. A A A A A TO Proceed Use the arrow keys to retype your password and press Enter when finished. Your password will be stored in the microprocessor and the system will immediately switch to the Analyze screen, and you now have access to all instrument functions. If all alarms are defeated, the Analyze screen appears as: 95.
Paramagnetic O2 Purity Analyzer Operation 4.3.5 System Self-Diagnostic Test The Model 3010MA has a built-in self-diagnostic testing routine. Pre-programmed signals are sent through the power supply, output board and sensor circuit. The return signal is analyzed, and at the end of the test the status of each function is displayed on the screen, either as OK or as a number between 1 and 3. (See System Self Diagnostic Test in Chapter 5 for number code.
Part 1 Control Unit Model 3010MA 4.3.6 Version Screen Move the < > arrow key to More and press Enter. With Version blinking, press Enter. The screen displays the manufacturer, model, and software version information. 4.3.7 Display Sensor Output The raw output of the sensor can be displayed from the Sensor Output screen. This is useful during initial sensor calibration where the sensor output is adjusted to correspond to zero and span values at ambient (or operating) vent pressure. See Section 4.9.
Paramagnetic O2 Purity Analyzer Operation If you are using password protection, you will need to enter your password to gain access to either of these functions. Follow the instructions in section 4.3.3 to enter your password. Once you have gained clearance to proceed, you can enter the Zero or Span function. The procedures that follow can be used for either the zero or span functions. Only the span function is described. NOTE: Make sure you choose the right function for the calibration gas used, i.e.
Part 1 Control Unit Model 3010MA The beginning span value is shown in the upper left corner of the display. As the span reading settles, the screen displays and updates information on Slope. Spanning automatically ends when the slope is less than 1/50 of the displayed value of the oxygen concentration (in ppm) for three minutes. Then the instrument automatically returns to the analyze mode. 4.4.1.2 MANUAL MODE SPANNING Press Span to start the Span function.
Paramagnetic O2 Purity Analyzer Operation 4.5 The Alarms Function The Model 3010MA is equipped with 2 fully adjustable concentration alarms and a system failure alarm. Each alarm has a relay with a set of form “C" contacts rated for 3 amperes resistive load at 250 V ac. See Figure in Chapter 3, Installation and/or the Interconnection Diagram included at the back of this manual for relay terminal connections. The system failure alarm has a fixed configuration described in chapter 3 Installation.
Part 1 Control Unit Model 3010MA 4. Are either of the alarms to be defeated? The defeat alarm mode is incorporated into the alarm circuit so that maintenance can be performed under conditions which would normally activate the alarms. The defeat function can also be used to reset a latched alarm. (See procedures, below.) If you are using password protection, you will need to enter your password to access the alarm functions. Follow the instructions in Section 4.3.3 to enter your password.
Paramagnetic O2 Purity Analyzer Operation To reset a latched alarm, go to Dft– and then press either ∆ two times or ∇ two times. (Toggle it to Y and then back to N.) –or – Go to Ltch– and then press either ∆ two times or ∇ two times. (Toggle it to N and back to Y.) 4.6 The Range Function The Range function allows the operator to program up to three concentration ranges to correlate with the DC analog outputs.
Part 1 Control Unit Model 3010MA Use the ∆∇ arrow keys to enter the upper value of the range (all ranges end at 100 %). Repeat for each range you want to set. Press Enter to accept the values and return to Analyze mode. (See note below.) NOTE: The ranges must be increasing from low to high. For example, if range 1 is set as 95-100 % and range 2 is set as 98-100 %, range 3 cannot be set as 96–100 % since it is lower than range 2. 4.6.2 Autoranging Analysis Set your analysis ranges as in 4.6.1, above.
Paramagnetic O2 Purity Analyzer Operation 4.7 The Analyze Function Normally, all of the functions automatically switch back to the Analyze function when they have completed their assigned operations. Pressing the Escape button in many cases also switches the analyzer back to the Analyze function. Alternatively, you can press the Analyze button at any time to return to analyzing your sample. 4.
Part 1 Control Unit Model 3010MA The analog output signal has a voltage which depends on the oxygen concentration AND the currently activated analysis range. To relate the signal output to the actual concentration, it is necessary to know what range the instrument is currently on, especially when the analyzer is in the autoranging mode. To provide an indication of the range, a second pair of analog output terminals are used.
Paramagnetic O2 Purity Analyzer Maintenance Maintenance 5.1 Routine Maintenance Aside from normal cleaning and checking for leaks at the gas connections, routine maintenance is limited to replacing fuses, and recalibration. For recalibration, see Section 4.4 The Zero and Span Functions. WARNING: SEE WARNINGS ON THE TITLE PAGE O F THIS MANUAL. 5.2 Fuse Replacement The fuse compartment is located adjacent to the universal power supply on the rear panel of the Control Unit. To remove or replace a fuse : 1.
Part 1 Control Unit Model 3010MA 2. To change between American and European fuses, remove the single retaining screw, flip Fuse Block over 180 degrees, and replace screw. 3. Replace fuse as shown in Figu re 5-2. 4. Reassemble Housing as shown in Figure 5-1. American Fuses European Fuses Figure 5-2: Installing Fuses 5.3 System Self Diagnostic Test 1. Press the System button to enter the system mode. 2. Use the < > arrow keys to move to More, and press Enter. 3.
Paramagnetic O2 Purity Analyzer Maintenance Preamp 0 OK 1 Zero Too High 2 Amplifier output doesn’t match test input 3 Both Failed 5.4 Major Internal Components WARNINGS: SEE WARNINGS ON THE TITLE PAGE OF THIS MANUAL. WARNING: UNPLUG THE POWER CORD FROM THE POWER SOURCE PRIOR TO OPENING THE INSTRUMENT FOR MAINTENANCE OR CLEANING. The 3010MA is comprised of the Control unit and the Analysis Unit.
Part 1 Control Unit Model 3010MA The Control Unit Contains: • 2 Power Supplies • Motherboard (with microprocessor, RS-232 chip, preamplifier PCB, and pressure compensation circuitry) • Front Panel Display Board • 5 digit LED meter • 2 line, 20 character, alphanumeric, VFD display • Temperature Controller The Analysis Unit contains: • Paramagnetic sensor • Sample System with flowmeter • Oven The major components of the Control Unit are shown in Figure 5-3.
Paramagnetic O2 Purity Analyzer Maintenance To access the Universal Power Supply and electronic PCB’s, the rear panel must be removed. This is accomplished by removing the 10 crosshead screws at the locations shown in Figure5 -4. Figure 5-4: Rear-Panel Screws 5.5 Cleaning If the instrument is unmounted at the time of cleaning, disconnect the instrument from the power source. Close and latch the front -panel access door. Clean outside surfaces with a soft cloth dampened slightly with plain clean water.
Part 1 Control Unit Teledyne Analytical Instruments Model 3010MA 64
Paramagnetic O2 Purity Analyzer Analysis Unit OPERATING INSTRUCTIONS Model 3010MA Paramagnetic Oxygen Purity Analyzer Part II: Analysis Unit Teledyne Analytical Instruments 65
Part 2 Analysis Unit Teledyne Analytical Instruments Model 3010MA 66
Paramagnetic O2 Purity Analyzer Analysis Unit Analysis Unit 6.1 Overview The Model 3010MA Paramagnetic Oxygen Purity Analyzer is a versatile instrument for accurately measuring percent oxygen concentration in oxygen rich gas sample streams. Three user -definable analysis ranges from 95-100% oxygen are available with auto-ranging and range ID contacts. The analyzer employs a paramagnetic sensor and a “split architecture” design to provide stable analysis across the instrument’s analysis range.
Part 2 Analysis Unit Model 3010MA 6.2 Paramagnetic Sensor The paramagnetic sensor is sensitive to pressure and temperature variations. The sensor used in the model 3010MA includes a preamp and an internal temperature controller set to 55°C. The entire sensor assembly is housed in an oven to further insulate the sensor from thermal fluctuations. The sensor produces a linear output from 0-1.2 V dc, and operates over the range of 95-100% oxygen. The sensor has zero and span trimpots for calibration. 6.2.
Paramagnetic O2 Purity Analyzer Analysis Unit Figure 6-1: Side view of Paramagnetic Sensor Figure 6-2: Front View of the Paramagnetic Sensor Teledyne Analytical Instruments 69
Part 2 Analysis Unit Model 3010MA The Paramagnetic sensor and heating elements are contained within the Analysis Unit but the temperature controller, sensor electronics, preamplifier and compensation circuitry are located in the Control Unit and interfaced to the Analysis Unit via the rear panel cable connections. Figure 6-1 is a drawing showing the front view of the paramagnetic sensor. Note the location of the Zero and Span adjustments on the upper left side of the sensor.
Paramagnetic O2 Purity Analyzer Analysis Unit 4 Not used 5 Preamplifier output ~0- 1 Vdc 6 Not used 7 24 Vdc return, power ground 8 Collector of transistor switching heating element (Not con- 9 Fault signal: <0 Vdc= OK, >4.6 Vdc = Fault (Not connected) 10 Not used 11 Negative reference voltage (Not connected) 12 Positive reference voltage (Not connected) 13 Nominal temperature voltage signal (Not connected) 14 Actual temperature voltage signal (Not connected) 15 +24 Vdc power.
Part 2 Analysis Unit Model 3010MA Figure 6-4: 15-Pin Sensor Cable and Pin Identification Teledyne Analytical Instruments 72
Paramagnetic O2 Purity Analyzer Analysis Unit Example: Cross sensitivity calculation for a gas mixture: The gas to be measured consists of 10 % CO 2, 40 % N2, and 50% Ar. CO2 : 0.27 × 10% = −0.027 Ar : 0.22 × 50% = −0.110 Total Cross Interference : = −0.137 Calculation of the zero value: 0%O2 - Cross Inerference Value = Zero Point Value 0% - (- 0.137 ) = +0.137 Table 6-2: Cross Sensitivity of Various Gases Gas Cross Gas Cross Sensitivity Sensitivity in vol. % in vol. % Acetylene C2H2 -0.
Part 2 Analysis Unit Model 3010MA Cyclo hexane C 6H12 -1.56 Nitric oxide NO +40.00 Ethane C2H6 -0.43 n-Octane C8H18 -2.50 Ethylene C2H4 -0.26 n-Pentane C5H12 -1.45 Helium He +0.30 Propane C3H8 -0.86 n-Heptane C7H16 -2.10 Propylene C3H6 -0.55 n-Hexane C6H14 -1.70 Vinyl chloride -0.63 Hydrogen H2 +0.24 Water H2O -0.02 Hydrogen bromide HBr -0.61 Xenon Xe -0.95 6.
Paramagnetic O2 Purity Analyzer Analysis Unit 6.4 Sample System The paramagnetic sensor used in the Model 3010MA is a partial pressure device and is sensitive to pressure variations both at the point of entry into the system and the sample exit (atmospheric pressure). For example, a 1% change in vent pressure will cause a corresponding 1% variation in the oxygen reading. For higher accuracy, a pressure compensation circuit is installed to compensate for vent pressure fluctuations.
Part 2 Analysis Unit Model 3010MA The sample system delivers gases to the sensor from the gas inlet located on the rear panel of the Analysis Unit. Note: There is no flow limiting device inside the analysis unit and the flow rate must not exceed 1000 SCCM. The Model 3010MA 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 encounters almost no dead space.
Paramagnetic O2 Purity Analyzer Analysis Unit side of the sensor for the pressure compensation. This line is fed to the pressure compensation circuit in the Control Unit and is vented to atmospheric pressure at the Control Unit. A bypass loop can be installed around the anaylsis unit to improve the overall response time of the instrument. If such a loop is used, make sure that the inlet flow at the analyzer is within the 300 -1000 SCCM.
Part 2 Analysis Unit Model 3010MA If remote gas selection is desired, the user must supply 3 two-way 24 V dc solenoid actuated valves, one for span, zero and sample gas. These valves are tied into the 50-Pin Equipment Interface connector as described in Section 3.3.2.3. NOTE: The automatic calibration feature of this analyzer can still be used even without remote valve operation however, the appropriate gas (zero, span or sample) must be selected manually.
Paramagnetic O2 Purity Analyzer Analysis Unit As mentioned in Chapter 2, the paramagnetic sensor used in this instrument is sensitive to the vent pressure (usually atmospheric). The initial sensor calibration is done at the factory during production testing however, if the users installation sample vent pressure is significantly different from that of our factory, the sensor will need to be recalibrated to ensure that it is operating in it’s linear range.
Part 2 Analysis Unit Model 3010MA arrow keys to blink More, then press Enter. Use the < > arrow keys again to navigate to the Cell-Output function. 5. Remove the Calibration Port cover located on the front panel of the Analysis Unit. (See Figure 6.3). Use a long thin screwdriver, locate and adjust the sensor output to 1.0 V dc by turning the right trim screw on the front of the sensor. The output on the VFD display should read between 1.000–0.900 V dc, as close to 1.000 as possible. 6.
Paramagnetic O2 Purity Analyzer Appendix Appendix A-1 Model 3010MA Specifications Sensor: Paramagnetic Range: 3 ranges, user selectable from 95-100% O2 Alarms: One system-failure alarm contact to detect power failure Two adjustable concentration threshold alarms with fully programmable setpoints. Displays: 2 line by 20 character, alphanumeric, VFD screen One 5 digit LED display Digital Interface: Full duplex RS-232 communications port. Power: 100-130, or 200-240 VAC, at 47/63 Hz.
Appendix Model 3010MA Approvals: CE mark Area Classification: General Purpose Teledyne Analytical Instruments 82
Paramagnetic O2 Purity Analyzer Appendix A-2 Recommended 2-Year Spare Parts List Qty Part Number Description 1 C65507A Rear Panel Board 1 C62371-B Front Panel Board 1 C73699B Paramagnetic Preamplifier Board 1 B73539 Heater control cable 24” 1 B73547 Sensor cable 24” 1 C72017 Main Computer Board (4-20 mA) 2 F10 Fuse, 2 A, 250 V, 3 AG, Slow Blow 3 F1296 Fuse, 2 A, 250 V, 5 × 20 mm, Slow Blow 2 F73 Ferrule 1/4” SS 2 F74 Ferrule 1/4” SS 2 N73 Nut 1/4” SS 1 R2533 Restrictor
Appendix Model 3010MA A-3 Drawing List D-71698 Outline Drawing B-71699 Piping Diagram A-4 19-inch Relay Rack Panel Mount Teledyne Analytical Instruments 84
Paramagnetic O2 Purity Analyzer Index Index AC power connection. See power connection access door, 17, 27, 62 address, 83 adjustable concentration alarms. See alarms adjusting the gas pressure, 50 alarm relay, 30 contact pins, 31 alarms, 16, 18, 53 concentration, 53 configuration, 53 resetting, 55 setpoint, 54 alarms function, 43, 53 alphanumeric.
Index Model 3010MA default values, 41 defeat alarm mode, 54 digital communications device. See RS-232 port digital to analog converter, 21 display, x, 15 digital meter, 16 interface screen, 16 pcb, 62 setting, 44 display sensor output, 50 door. See access door drawing list, 84 electrical connections, 29 analysis unit, 38 Enter, 16 enter button, 42 equipment interface connector, 18, 29, 35, 76 Escape, 16 escape button, 42 failure codes, 60 FET, 34 Figures, list of, ix filter, 39, 76 flow limiting device.
Paramagnetic O2 Purity Analyzer paramagnetic sensor, 19, 62, 68, 69 password, 43, 45 PC board main, 15 piping diagram, 77 power connection, 17 power cord, 29 power supply, 62 24 V dc, 15, 71 universal, 21 preamplifier, 68 preamplifier PCB, 62 pressure compensation, 15, 19, 28, 62, 75, 77 pressure in, 17 pressure transducer, 22 rack-mounting, 25 RAM, xi, 21 range, xi, 16 range function, 43, 55 range ID. See analog output range id contacts. See inputs ranges user defined, 55 rear panel, 18. See Control Unit.
Index Model 3010MA Table of Contents, v Tables, list of, viii temperature controller, 15, 19, 22, 68, 74 temperature controller setpoint, 79 threshold alarm, 31 universal power supply, 21 access to, 63 vent pressure, 22 vent pressure changes, 75 vent pressure sensitivity, 79 version, 44 view sensor output. See display sensor output voltage amplifier, 22 voltage output.
