Percent Oxygen Analyzer OPERATING INSTRUCTIONS FOR Model 3000PB Percent Oxygen Analyzer DANGER HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING SYSTEM. PERSONAL 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 DISCONNECTED. ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING.
Model 3000PB Copyright © 1999 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 917491580.
Percent Oxygen Analyzer Table of Contents 1 Introduction 1.1 Overview ........................................................................ 1-1 1.2 Typical Applications ....................................................... 1-1 1.3 Main Features of the Analyzer ....................................... 1-1 1.4 Model Designations ....................................................... 1-2 1.5 Operator Interface .......................................................... 1-3 1.5.1 Displays .................
Model 3000PB 3.3.9 Remote Sensor and Solenoid Valves..................... 3-10 3.4 Installing the Micro-Fuel Cell .......................................... 3-12 3.5 Gas Connections ........................................................... 3-12 3.6 Testing the System ........................................................ 3-14 4 Operation 4.1 Introduction .................................................................... 4-1 4.2 Using the Data Entry and Function Buttons ................... 4-2 4.
Percent Oxygen Analyzer 5.7 Troubleshooting.............................................................. 5-9 Appendix A-1 A-2 A-3 A-5 A-6 Specifications ................................................................. A-1 Recommended 2-Year Spare Parts List ......................... A-3 Drawing List ................................................................... A-4 Applicatiopn Notes on Restrictors, Pressures & Flow .... A-5 The Zero Functions .......................................................
Model 3000PB DANGER COMBUSTIBLE GAS USAGE WARNING This is a general purpose instrument designed for usage in a nonhazardous area. It is the customer's responsibility to ensure safety especially when combustible gases are being analyzed since the potential of gas leaks always exist. The customer should ensure that the principles of operating of this equipment is well understood by the user.
Percent Oxygen Analyzer Introduction 1 Introduction 1.1 Overview The Teledyne Analytical Instruments Model 3000PB Percent Oxygen Analyzer is a versatile microprocessor-based instrument for detecting oxygen in a variety of gases. This manual covers the Model 3000PB, percent oxygen, general purpose, bulkhead-mount units only. 1.
1 Introduction Model 3000PB • Versatile analysis over a wide range of applications. • Microprocessor based electronics: 8-bit CMOS microprocessor with 32 kB RAM and 128 kB ROM. • Three user definable output ranges (from 0-1 % through 0-100 %) allow best match to users process and equipment. • Air-calibration range for convenient spanning at 20.9 %. • Auto Ranging allows analyzer to automatically select the proper preset range for a given measurement.
Percent Oxygen Analyzer 1.5 Introduction 1 Operator Interface Figure 1-1 is an illustration of the front of the Model 3000PB Oxygen Analyzer with the outer door open showing the control panel (which is also the inner door). All displays on the standard 3000PB are visible from outside the housing.
1 Introduction Model 3000PB (Pressing the latch button will open the Inner Door) Figure 1-1: Model 3000PB—Outer Door Open—Showing Control Panel 1-4 Teledyne Analytical Instruments
Percent Oxygen Analyzer Introduction 1 Figure 1-2: Model 3000PB—Inner Door Open—Showing Internal Components Teledyne Analytical Instruments 1-5
1 Introduction Model 3000PB 1.5.1 Displays Digital Meter 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 all ranges without the discontinuity of analog range switching. Alphanumeric Interface Screen: The VFD screen is an easy-to-use interface from operator to analyzer.
Percent Oxygen Analyzer Introduction 1 1.5.4 I/O Power Button The red I/O button switches the instrument power between I (ON) and O (a Keep-Alive state). In the O state, the instrument’s circuitry is operating, but there are no displays or outputs. CAUTION: The power cable must be unplugged to fully disconnect power from the instrument. When chassis is exposed or when inner door is open and power cable is connected, use extra care to avoid contact with live electrical circuits. 1.5.
1 Introduction Model 3000PB 3.0 A MAX Figure 1-3: Electrical Connector Panel Electrical Connections: The electrical connections on the electrical connector panel are described briefly here, and in more detail in chapter 3 Installation. 1-8 • Power Connection 115 or 230 V ac, 50 or 60 Hz. • Analog Outputs 0-1 V dc concentration plus 0-1 V dc range ID, and isolated 4-20 mA dc plus 4-20 mA dc range ID. • Alarm Connections 2 concentration alarms and 1 system alarm.
Percent Oxygen Analyzer Introduction 1 • RS-232 Port Serial digital concentration signal output and control input. • Remote Valves Used for controlling external solenoid valves, if desired. • Remote Sensor Used for external sensor and thermistor • Remote Span/Zero Digital inputs allow external control of analyzer calibration. • Calibration Contact To notify external equipment that instrument is being calibrated and readings are not monitoring sample.
1 Introduction • Model 3000PB Gas Inlet and Outlet One inlet (must be externally valved) and one exhaust out. Optional: • Calibration Gas Ports Separate fittings for zero, span and sample gas input, plus internal valves for automatically switching the gases in sync with the 3000PB electronics. Note: If you require highly accurate Auto-Cal timing, use external Auto-Cal control where possible. The internal clock in the Model 3000PB is accurate to 2-3 %.
Percent Oxygen Analyzer Operational Theory 2 Operational Theory 2.1 Introduction The analyzer is composed of three subsystems: 1. Micro-Fuel Cell Sensor 2. Sample System 3. Electronic Signal Processing, Display and Control The sample system is designed to accept the sample gas and transport it through the analyzer without contaminating or altering the sample prior to analysis.
2 Operational Theory Model 3000PB analyzed. The Micro-Fuel Cell is therefore a hybrid between a battery and a true fuel cell. (All of the reactants are stored externally in a true fuel cell.) 2.2.2 Anatomy of a Micro-Fuel Cell The Micro-Fuel Cell is a cylinder only 1¼ inches in diameter and 1 inch thick. It is made of extremely inert plastic, which can be placed confidently in practically any environment or sample stream. It is effectively sealed, although one end is permeable to oxygen in the sample gas.
Percent Oxygen Analyzer Operational Theory 2 the oxygen sensing element—the cathode—with a surface area almost 4 cm2. The cathode has many perforations to ensure sufficient wetting of the upper surface with electrolyte, and it is plated with an inert metal. The anode structure is below the cathode. It is made of lead and has a proprietary design which is meant to maximize the amount of metal available for chemical reaction.
2 Operational Theory Model 3000PB (These reactions will hold as long as no gaseous components capable of oxidizing lead—such as iodine, bromine, chlorine and fluorine—are present in the sample.) The output of the fuel cell is limited by (1) the amount of oxygen in the cell at the time and (2) the amount of stored anode material. In the absence of oxygen, no current is generated. 2.2.
Percent Oxygen Analyzer Operational Theory 2 Figure 2-3. Characteristic Input/Output Curve for a Micro-Fuel Cell 2.2.6 Micro-Fuel Cell “Class” TBE manufactures Micro-Fuel Cells with a variety of characteristics to give the best possible 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.
2 Operational Theory Model 3000PB Nominal output in air is 0.19 mA, and 90 % response time is 45 s. Expected life in flue gas is 8 months. 2.2.6.3 Class B-1 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 fast response is important. Nominal output in air is 0.50 mA, and 90 % response time is 7 s. Expected life in air is 8 months. 2.2.6.
Percent Oxygen Analyzer Operational Theory 2 mizes residual gas pockets that can interfere with very low level oxygen analysis. The sample system for the standard instrument incorporates ¼ inch tube fittings for sample inlet and outlet connections at the rear panel. For metric system installations, 6 mm adapters are supplied with each instrument. The sample or calibration gas flow through the system is monitored by a flowmeter downstream from the cell.
2 Operational Theory Model 3000PB Figure 2-5: Block Diagram of the Model 3000PB Electronics In the presence of oxygen the cell generates a current. A current to voltage amplifier converts this current to a voltage, and then the voltage is amplified in the second stage amplifier. The second stage amplifier also supplies temperature compensation for the oxygen sensor output. This amplifier circuit incorporates a thermistor, which is physically located in the cell block.
Percent Oxygen Analyzer Operational Theory 2 dependent resistance that changes the gain of the amplifier in proportion to the temperature changes in the block. This change is inversely proportional to the change in the 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 controlled by the microprocessor.
2 Operational Theory 2-10 Teledyne Analytical Instruments Model 3000PB
Percent Oxygen Analyzer Installation 3 Installation Installation of the Model 3000PB Analyzer includes: 1. Unpacking 2. Mounting 3. Gas connections 4. Electrical connections 5. Installing the Micro-Fuel Cell 6. Testing the system. 3.1 Unpacking the Analyzer The analyzer is shipped with all the materials you need to install and prepare the system for operation. Carefully unpack the analyzer and inspect it for damage. Immediately report any damage to the shipping agent. 3.
3 Installation Model 3000PB Figure 3-1: Front View of the Model 3000PB (Simplified) 3-2 Teledyne Analytical Instruments
Percent Oxygen Analyzer Installation 3 Figure 3-2: Required Front Door Clearance 3.3 Electrical Connections Figure 3-3 shows the Model 3000PB Electrical Connector Panel. There are terminal blocks for connecting power, communications, and both digital and analog concentration outputs.
3 Installation Model 3000PB For safe connections, ensure that no uninsulated wire extends outside of the connectors they are attached to. Stripped wire ends must insert completely into terminal blocks. No uninsulated wiring should be able to come in contact with fingers, tools or clothing during normal operation. Terminal block can accept ware guage 20 to 10. 3.3.1 Primary Input Power The universal power supply requires a 115 or 230 V ac, 50 or 60 Hz, power source.
Percent Oxygen Analyzer Installation 3 Figure 3-5: Analog Output Connections The outputs are: 0–1 V dc % of Range: Voltage rises linearly with increasing oxygen, from 0 V at 0 % to 1 V at 100 %. (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: (-M Option) Current increases linearly with increasing oxygen, from 4 mA at 0 % to 20 mA at full scale 100 %.
3 Installation Model 3000PB Table 3-1: Analog Concentration Output—Example Voltage Signal Output (V dc) % O2 0 1 2 3 4 5 6 7 8 9 10 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Current Signal Output (mA dc) 4.0 5.6 7.2 8.8 10.4 12.0 13.6 15.2 16.8 18.4 20.0 To provide an indication of the range, 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.
Percent Oxygen Analyzer Installation 3 Figure 3-6: Types of Relay Contacts The connectors are: Threshold Alarm 1: • Can be configured as high (actuates when concentration is above threshold), or low (actuates when concentration is below threshold). • Can be configured as failsafe or nonfailsafe. • Can be configured as latching or nonlatching. • Can be configured out (defeated).
3 Installation Model 3000PB ZERO: Floating input. 5 to 24 V input across the + and – terminals puts the analyzer into the Zero mode. Either side may be grounded at the source of the signal. 0 to 1 volt across the terminals allows Zero mode to terminate when done. A synchronous signal must open and close the external zero valve appropriately. See 3.3.9 Remote Sensor and Solenoid Valves. (With the –C option, the internal valves automatically operate synchronously.) SPAN: Floating input.
Percent Oxygen Analyzer Installation 3 Note: The remote probe connections (paragraph 3.3.9) provides signals to ensure that the zero and span gas valves will be controlled synchronously. If you have the –C Internal valve option—which includes additional zero and span gas inputs— the 3000PB automatically regulates the zero, span and sample gas flow. 3.3.6 Range ID Relays There are four dedicated RANGE ID CONTACT relays.
3 Installation • • • • Model 3000PB The range in use (HI, MED, LO) The span of the range (0-100 %, etc) Which alarms—if any—are disabled (AL–x DISABLED) Which alarms—if any—are tripped (AL–x ON). Each status output is followed by a carriage return and line feed. Three input functions using RS-232 have been implemented to date. They are described in Table 3-4. Table 3-4: Commands via RS-232 Input Command Description as Immediately starts an autospan. az Immediately starts an autozero.
Percent Oxygen Analyzer Installation 3 Figure 3-7: Remote Sensor Connector Pinouts Figure 3-8: Remote Solenoid Return Connector Pinouts The voltage from these outputs is nominally 0 V for the OFF and 15 V dc for the ON conditions. The maximum combined current that can be pulled from these output lines is 100 mA. (If two lines are ON at the same time, each must be limited to 50 mA, etc.
3 Installation 3.4 Model 3000PB Installing the Micro-Fuel Cell The Micro-Fuel Cell is not installed in the cell block when the instrument is shipped. It must be installed before the analyzer is placed in service. Once 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 replacement if the instrument has been idle for too long.
Percent Oxygen Analyzer Installation 3 1. Insert the tube into the tube fitting, and finger-tighten the nut until the tubing cannot be rotated freely, by hand, in the fitting. (This may require an additional 1/8 turn beyond finger-tight.) 2. Hold the fitting body steady with a backup wrench, and with another wrench rotate the nut another 11/4 turns. Behind Panel Figure 3-10: Gas Connector Panel SAMPLE IN: In the standard model, gas connections are made at the SAMPLE IN and EXHAUST OUT connections.
3 Installation Model 3000PB and calibration gases. These valves are completely under control of the 3000PB Electronics. They can be externally controlled only indirectly through the Remote Cal Inputs, described below. Pressure, flow, and safety considerations are the same as prescribed for the SAMPLE IN inlet, above. EXHAUST OUT: Exhaust connections must be consistent with the hazard level of the constituent gases.
Percent Oxygen Analyzer Operation 4 Operation 4.1 Introduction Once the analyzer has been installed, it can be configured for your application. To do this you will: • • • • Set system parameters: • Establish a security password, if desired, requiring operator to log in. • Establish and start an automatic calibration cycle, if desired. Calibrate the instrument. Define the three user selectable analysis ranges. Then choose autoranging or select a fixed range of analysis, as required.
4 Operation Model 3000PB 4.2 Using the Data Entry and Function Buttons Data Entry Buttons: The < > arrow buttons select options from the menu currently displayed on the VFD screen. The selected option blinks. When the selected option includes a modifiable item, the Δ∇ arrow buttons can be used to increment or decrement that modifiable item. The Enter button is used to accept any new entries on the VFD screen.
Percent Oxygen Analyzer Operation 4 Contrast Function is DISABLED (Refer to Section 1.6) Figure 4-1: Hierarchy of Functions and Subfunctions 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.
4 Operation • • • • Model 3000PB operation, such as setting the instrument span or zero setting, adjusting the alarm setpoints, or defining analysis ranges. 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 TBEAI by default. This allows access to anyone.
Percent Oxygen Analyzer Operation 4 4.3.2 Setting up an Auto-Cal When proper automatic valving is connected (see chapter 3, installation), the Analyzer can cycle itself through a sequence of steps that automatically zero and span the instrument. Note: If you require highly accurate Auto-Cal timing, use external Auto-Cal control where possible. The internal clock in the Model 3000PB is accurate to 2-3 %. Accordingly, internally scheduled calibrations can vary 2-3 % per day.
4 Operation Model 3000PB If you have decided not to employ password security, use the default password TBEAI. This password will be displayed automatically by the microprocessor. The operator just presses the Enter key to be allowed total access to the instrument’s features. NOTE: If you use password security, it is advisable to keep a copy of the password in a separate, safe location. 4.3.3.
Percent Oxygen Analyzer Operation 4 Change Password? =Yes =No Press Escape to move on, or proceed as in Changing the Password, below. 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.
4 Operation Model 3000PB When you have finished typing the new password, press Enter. A verification screen appears. The screen will prompt you to retype your password for verification. AAAAA Retype PWD To Verify Wait a moment for the entry screen. You will be given clearance to proceed. AAAAA TO Proceed Use the arrow keys to retype your password and press Enter when finished.
Percent Oxygen Analyzer Operation 4 4.3.5 System Self-Diagnostic Test The Model 3000PB has a built-in self-diagnostic testing routine. Preprogrammed 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.
4 Operation 4.4 Model 3000PB The Span Functions The analyzer is calibrated using span gas. NOTE: Zero is not necessary for Percent (%) level measurements. Additional information on Zero functions is provided in the Appendix A-6 of this manual. Although the instrument can be spanned using air, a span gas with a known oxygen concentration in the range of 70–90% of full scale of the range of interest is recommended. Since the oxygen concentration in air is 20.9 %, therefore 20.9% is ideal calibration.
Percent Oxygen Analyzer Operation 4 the prescribed calculations. If a weak cell is indicated, replace the cell as described. 4.4.2 Span Cal The Span button on the control panel is used to span calibrate the analyzer. Span calibration can be performed using the automatic mode, where an internal algorithm compares consecutive readings from the sensor to determine when the output matches the span gas concentration.
4 Operation Model 3000PB 4.4.2.2 Manual Mode Spanning Press Span to start the Span function. The screen that appears allows you to select whether the span calibration is to be performed automatically or manually. Span: Settling:MAN For Next Use the Δ∇ keys to toggle between AUTO and MAN span settling. Stop when MAN appears, blinking, on the display. Press Enter to move to the next screen. Span Val: 20.90 Span Mod # Press Δ () to permit modification (Mod #) of span value.
Percent Oxygen Analyzer Operation 4 The system failure alarm has a fixed configuration described in chapter 3 Installation. The concentration alarms can be configured from the control panel as either high or low alarms by the operator. The alarm modes can be set as latching or non-latching, and either failsafe or non-failsafe, or, they can be defeated altogether. The setpoints for the alarms are also established using this function. Decide how your alarms should be configured.
4 Operation Model 3000PB 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. Once you have clearance to proceed, enter the Alarm function. Press the Alarm button on the control panel to enter the Alarm function. Make sure that AL–1 is blinking. AL—1 AL—2 Choose Alarm Set up alarm 1 by moving the blinking over to AL–1 using the < > arrow keys. Then press Enter to move to the next screen.
Percent Oxygen Analyzer 4.6 Operation 4 The Range Function The Range function allows the operator to program up to three concentration ranges to correlate with the DC analog outputs. If no custom ranges are defined by the user, the instrument defaults to: Low = 0–1.00 % Med = 0–5.00 % High = 0–10.00 %. The Model 3000PB is set at the factory to default to autoranging. In this mode, the microprocessor automatically responds to concentration changes by switching ranges for optimum readout sensitivity.
4 Operation Model 3000PB 4.6.2 Autoranging Analysis Set your analysis ranges as in 4.6.1, above. Leave Mode in Auto, or use the arrow buttons to change back to Auto. When operating in autoranging, if the oxygen concentration in your sample goes ABOVE your HIGHEST range setting, the analyzer will go into the special 25 % cal range. However, if one of your range settings is below 0-25 % and another is set above 0-25 %, the special 0-25 % Air Cal range will NOT activate as the oxygen level goes through 25 %.
Percent Oxygen Analyzer Operation 4 Press Escape to re-enter the Analyze mode using the fixed range. NOTE:When performing analysis on a fixed range, if the oxygen concentration rises above the upper limit (or default value) as established by the operator for that particular range, the output saturates at 1 V dc. However, the digital readout and the RS-232 output continue to read the true value of the oxygen concentration regardless of the analog output range. 4.
4 Operation Model 3000PB 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.
Percent Oxygen Analyzer Maintenance 5 Maintenance 5.1 Routine Maintenance Aside from normal cleaning and checking for leaks at the gas connections, routine maintenance is limited to replacing Micro-Fuel cells and fuses, and recalibration. For recalibration, see Section 4.4 The Zero and Span Functions. WARNING: SEE WARNINGS ON TITLE PAGE OF THIS MANUAL. 5.
5 Maintenance Model 3000PB Figure 5-1: Major Internal Components 5.3 Cell Replacement The Micro-Fuel Cell is a sealed electrochemical transducer with no electrolyte to change or electrodes to clean. When the cell reaches the end of its useful life, it is replaced. The spent fuel cell should be discarded in accordance with to all applicable safety and environmental regulations. This section describes fuel cell care as well as when and how to replace it.
Percent Oxygen Analyzer Maintenance 5 5.3.1 Storing and Handling Replacement Cells To have a replacement cell available when it is needed, it is recommended that one spare cell be purchased 4-5 months after commissioning the 3000PB, or shortly before the end of the cell's warranty period. CAUTION: Do not stockpile cells. The warranty period starts on the day of shipment.
5 Maintenance Model 3000PB Version Self—Test Cell Output: ### μ A The “good” reading depends on the class of cell your analyzer is using. Although the B-1 cell is standard in the 3000PB, check Specific Model Information in the Front Matter in this manual for the class of cell you purchased. Then check Table 5-1, the Cell Indices table below, and do the prescribed calculations. If the resulting value is below the Cell Output reading, replace the cell. To find out if the cell is too weak: 1.
Percent Oxygen Analyzer Maintenance 5 2. Unlatch and open the outer and inner doors. 3. Leave the cell block installed. Pull up on the probe, with a slight rocking motion, to release it from the probe receptacle. 4. Do not remove the O-rings unless they are worn and no longer hold the probe tightly. (If worn, replace them.) Figure 5-2: Exploded View of Cell Block and Micro-Fuel Cell 5. When it is free, unscrew the cap from the nylon probe.
5 Maintenance Model 3000PB 6. Remove the cell from the probe, and dispose of it in an environmentally safe manner. 5.3.4 Installing a New Micro-Fuel Cell CAUTION: Do not touch the sensing surface of the cell. It is covered with a delicate Teflon membrane that can leak when punctured. The sensor must be replaced if the membrane is damaged. Before installing a new cell, check the O-ring in the base of the cell holder. Replace if worn or damaged. 1.
Percent Oxygen Analyzer Maintenance 5 Note: Evidence of damage due to tampering or mishandling will render the cell warranty null and void. 5.4 Fuse Replacement The 3000PB requires two 5 × 20 mm, 4 A, T type (Slow Blow) fuses. The fuses are located inside the main housing on the Electrical Connector Panel, as shown in Figure 5-3. To replace a fuse: 1. Disconnect the Unit from its power source. 2. Place a small screwdriver in the notch in the fuse holder cap, push in, and rotate 1/4 turn.
5 Maintenance Model 3000PB During preamp testing there is a countdown in the lower right corner of the screen. When the testing is complete, the results are displayed. Power: OK Preamp: 2 Analog: OK The module is functioning properly if it is followed by OK. A number indicates a problem in a specific area of the instrument. Refer to Table 5-1 for number-code information. The results screen alternates for a time with: Press Any Key To Continue...
Percent Oxygen Analyzer 5.6 Maintenance 5 Troubleshooting Problem: Erratic readings of the Oxygen concentration as reported by the analyzer. Possible Cause: The analyzer may have been calibrated in an inaccurate fashion. Solution: Turn the analyzer off, then back on again. Press the System key when prompted by the analyzer "Press System for default Values". This will return the analyzer to its default settings in calibration and zero values. If erratic behavior continues replace the sensor.
5 Maintenance 5-10 Model 3000PB Teledyne Analytical Instruments
Percent Oxygen Analyzer Appendix Appendix A-1 Specifications Packaging: General Purpose, NEMA-4, Bulkhead mount. Sensor: Class B-1 percent analysis Micro-Fuel Cell. Cell Block: Nylon. (Stainless steel available.) Ranges: Three user definable ranges from 0-1 % to 0100 %, plus air calibration range of 0-25 %. Autoranging with range ID output. Sample System: Flow indicator visible from front of unit. Positive pressure service. Vacuum service (optional). Auto Cal / Auto Zero.
Appendix Model 3000PB Accuracy: ±2% of full scale at constant temperature. ±5% of full scale over operating temperature range, on factory default analysis ranges, once thermal equilibrium has been achieved. Analog outputs: 0-1 V dc percent-of-range 0-1 V dc range ID. Optional: 4-20 mA dc percent-of-range, isolated 4-20 mA dc range ID, isolated Password Access: Can be user-configured for password protection.
Percent Oxygen Analyzer Appendix A-2 Recommended 2-Year Spare Parts List Qty Part Number Description 1 C62959 Display PCB 1 C65295 Customer Interface PCB 1 C62368-B Percent Preamplifier Board 1* C73870-C Main PCB (Standard) 1* C73870-B Main PCB (4-20 mA option) 3 F1295 Fuse, 4A, 250V, 5×20 mm, T (Slow Blow) 2 O38 O-ring 1 C6689-B1 Micro-Fuel Cell (For options see **) * Order -B or -C, not both. ** Check Specific Model Information in front matter of this manual for cell options.
Appendix Model 3000PB A-3 Drawing List D66682 D66674 D66675 NOTE: A-4 Final Assembly Drawing Outline Drawing Wiring Diagram The MSDS on this material is available upon request through the Teledyne Environmental, Health and Safety Coordinator.
Percent Oxygen Analyzer A-5 Appendix 3000 SERIES ANALYZERS APPLICATION NOTES ON RESTRICTORS, PRESSURES, AND FLOW RECOMMENDATIONS 3000 series analyzers require reasonably regulated sample pressures. While the 3000 analyzers are not sensitive to variations of incoming pressure (provided they are properly vented to atmospheric pressure) The pressure must be maintained as to provide a useable flow rate trough the analyzer. Any line attached to sample vent should be 1/4 or larger in diameter.
Appendix Model 3000PB The second function that the restriction device provides is a pressure drop. This device is selected to provide the only significant pressure drop in the sample path. RESTRICTOR KIT The current revision of the 3000 series analyzers are supplied with a kit containing two restrictors and a union which are user installed. These parts supplied to give the end user more flexibility when installing the analyzer.
Percent Oxygen Analyzer Appendix BY-PASS: To improve the system response, a by-pass can be added to increase the sample flow rate to the analyzer by a factor of ten. A by-pass provides a sample flow path around the analyzer of 2 - 18 SCFH. typically. CALIBRATION GAS: 3000 series analyzer requirements for units with Auto-Cal options. The customer must supply a control valves (or restrictors) for any SPAN or ZERO gas source which is attached to the Auto-Cal ports.
Appendix A-6 Model 3000PB Zero Cal The Zero button on the control panel is used to enter the zero calibration function. Zero calibration can be performed in either the automatic or manual mode. In the automatic mode, an internal algorithm compares consecutive readings from the sensor to determine when the output is within the acceptable range for zero. In the manual mode, the operator determines when the reading is within the acceptable range for zero.
Percent Oxygen Analyzer Appendix to toggle between AUTO and MAN zero settling. Stop when MAN appears, blinking, on the display. Zero: Settling: Man To Begin Press Enter to begin the zero calibration. After a few seconds the first of five zeroing screens appears. The number in the upper left hand corner is the first-stage zero offset. The microprocessor samples the output at a predetermined rate.
Appendix A-10 Model 3000PB Teledyne Analytical Instruments
Percent Oxygen Analyzer Appendix A-4 Material Safety Data Sheet Section I – Product Identification Product Name: Micro-Fuel Cells and Super Cells, all classes except A-2C, A-3, and A-5. Electrochemical Oxygen Sensors, all classes except R-19. Mini-Micro-Fuel Cells, all classes.
Appendix Model 3000PB Section IV – Fire and Explosion Hazard Data Flash Point: na Flammable Limits: na LEL: na UEL: na Extinguishing Media: Use extinguishing media appropriate to surrounding fire conditions. No specific agents recommended. Special Fire Fighting Equipment: Wear NIOSH/OSHA approved self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes. Unusual Fire and Explosion Hazards: Emits toxic fumes under fire conditions.
Percent Oxygen Analyzer Appendix Signs and Symptoms of Exposure: Contact of electrolyte with skin or eyes will cause a burning sensation and/or feel soapy or slippery to touch. Other symptoms of exposure to lead include loss of sleep, loss of appetite, metallic taste and fatigue. Carcinogenicity: Lead is classified by the IARC as a class 2B carcinogen (possibly carcinogenic to humans) OSHA: Where airborne lead exposures exceed the OSHA action level, refer to OSHA Lead Standard 1910.1025.
Appendix Model 3000PB Section VIII – Control Measures Eye Protection: Chemical splash goggles Hand Protection: Rubber gloves Other Protective Clothing: Apron, face shield Ventilation: na Section IX – Disposal Both lead and potassium hydroxide are considered poisonous substances and are regulated under TSCA and SARA Title III. EPA Waste Number: D008 California Waste Number: 181 DOT Information: RQ Hazardous Waste Solid N.O.S.
