Teledyne 3000MA Operating Instructions Manual
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Teledyne 3000MA Operating Instructions Manual

Teledyne 3000MA Operating Instructions Manual

Percent oxygen analyzer
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Percent Oxygen Analyzer
OPERATING INSTRUCTIONS FOR
Model 3000 MA
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 PER-
P/N M71700
SIST FOR A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED.
04/27/00
ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING.
ECO:# 00-0000
BEFORE CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED
SUPERVISOR/MANAGER.
i

Teledyne Analytical Instruments

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  • Page 1: Teledyne Analytical Instruments

    HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PER- P/N M71700 SIST FOR A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED. 04/27/00 ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. ECO:# 00-0000 BEFORE CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/MANAGER. Teledyne Analytical Instruments...
  • Page 2 Any safeguards required such as locks, labels, or redun- dancy, must be provided by the user or specifically requested of Teledyne at the time the order is placed.
  • Page 3 In addition to all standard features, this model also has separate ports for zero and span gases, and built-in control valves. The internal valves are entirely under the control of the 3000MA electronics, to automatically switch between gases in synchronization with the analyzer’s operations...

  • Page 4: Table Of Contents

    Model 3000MA 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 Front Panel (Operator Interface) ........1-3 1.6 Recognizing Difference Between LCD & VFD ....1-5 1.7 Rear Panel (Equipment Interface) ........
  • Page 5 5.4 Major Internal Components ..........5-3 5.5 Cleaning ................ 5-4 5.6 Troubleshooting ............. 5-4 Appendix A-1 Model 3000MA Specifications ........A-1 A-2 Recommended 2-Year Spare Parts List ......A-3 A-3 Drawing List ..............A-4 A-4 19-Inch Relay Rack Panel Mount ........A-4 A-5 Zero Functions ...............
  • Page 6 Since the use of this instrument is beyond the control of Teledyne, no responsibility by Teledyne, its affiliates, and agents for damage or injury from misuse or neglect of this equipment is implied or assumed.

  • Page 7: Introduction

    Introduction 1 Introduction Overview The Teledyne Analytical Instruments Model 3000MA Percent Oxygen Analyzer is a versatile microprocessor-based instrument for detecting the percentage of oxygen in a variety of background gases. This manual covers the Model 3000MA General Purpose flush-panel and/or rack-mount units only. These units are for indoor use in a nonhazardous environment.

  • Page 8: Model Designations

    Model Designations 3000MA: Standard model. 3000MA-C: In addition to all standard features, this model also has separate ports for zero and span gases, and built-in control valves. The internal valves are entirely under the control of the 3000MA electronics, to automatically switch between gases in synchronization with the analyzer’s operations.

  • Page 9: Front Panel (Operator Interface)

    Figure 1-1: Model 3000MA Front Panel Front Panel (Operator Interface) The standard 3000MA is housed in a rugged metal case with all con- trols 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.
  • Page 10 1 Introduction Model 3000MA Function Keys: Six touch-sensitive membrane switches are used to change the specific function performed by the analyzer: • Analyze Perform analysis for oxygen content of a sample gas. • System Perform system-related tasks (described in detail in chapter 4, Operation.).

  • Page 11: Recognizing Difference Between Lcd & Vfd

    Current signal outputs are optional and may not appear on your instrument. The connectors are described briefly here and in detail in the Installation chapter of this manual. Figure 1-2: Model 3000MA Rear Panel • Power Connection Universal AC power source.
  • Page 12 4-20 mA dc range ID. Note: If you require highly accurate Auto-Cal timing, use external Auto-Cal control where possible. The internal clock in the Model 3000MA is accurate to 2-3 %. Accordingly, internally scheduled calibrations can vary 2-3 % per day. Teledyne Analytical Instruments...

  • Page 13: Operational Theory

    Precise Paramagnetic Sensor 2.2.1 Principles of Operation The heart of the 3000MA is a paramagnetic type oxygen sensor that is maintanance free and has a long lifetime. Oxygen has a very high magnetic sucseptibility compared to other gases and thus displays a particularly para- magnetic behavior.
  • Page 14 The Electronics and heating elements require a separate power source, from the rest of the 3000MA capable of delivering 1.5 amps approximately at 24 volts dc. The output of the sensor is roughly calibrated to be 0 to 1 volt DC for the the range of 0 to 100 % 02.

  • Page 15: Cross Interference

    Oxygen. It is actually displaying the cross sensitivity to another gas. The following table shows the cross sensitivity of some gases when changing from pure nitrogen to 100% of one of the gases listed. Teledyne Analytical Instruments...
  • Page 16 2 Operational Theory Model 3000MA Cross Cross Sensitivity Sensitivity in vol. % in vol. % Acetylene C -0.24 Hydrogen chloride HCI -0.30 Allene C -0.44 Hydrogen fluoride HF +0.10 Ammonia NH -0.26 Hydrogen iodide HI -1.10 Argon Ar -0.22 Hydrogen sulphide H S -0.39...

  • Page 17: Sample System

    Depending on the mode of operation either sample or calibration gas is delivered. The Model 3000MA 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.

  • Page 18: Electronics And Signal Processing

    2 Operational Theory Model 3000MA Electronics and Signal Processing The Model 3000MAPercent Oxygen Analyzer uses an 8031 microcon- troller with 32 kB of RAM and 128 kB of ROM to control all signal pro- cessing, input/output, and display functions for the analyzer. System power is supplied from a universal power supply module designed to be compatible with any international power source.
  • Page 19 A to D Converter 24V Power Supply Power Supply Auto Range System Micro- Failure Processor Alarm Displays Self Test Signal Concentration D to A 0-1 V Converter Range 0-1 V Figure 2-6: Block Diagram of the Model 3000MA Electronics Teledyne Analytical Instruments...
  • Page 20 2 Operational Theory Model 3000MA Teledyne Analytical Instruments...

  • Page 21: Installation

    Immediately report any damage to the shipping agent. Mounting the Analyzer The Model 3000MA 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 panel mounting. Figure 3-1 is an illustration of the 3000MA standard front panel and mounting bezel.

  • Page 22: Rear Panel Connections

    Figure 3-2: Required Front Door Clearance Rear Panel Connections Figure 3-3 shows the Model 3000MA rear panel. It contains all of the gas and electrical inputs and outputs. Some ports are optional equipment. Refer to page iii in the front of this manual for options included in your instrument.

  • Page 23: Gas Connections

    Installation 3 Figure 3-3: Rear Panel of the Model 3000MA 3.3.1 Gas Connections It is recommended that a gas filter be located upstream of the 3000MA to prevent sensor or restrictor contamination. A 0.5 micron filter should be suitable. Before using this instrument, it should be determined if the unit will be used for pressurized service or vacuum service and low pressure applica- tions.

  • Page 24: Electrical Connections

    There are electrically operated valves inside for automatic switching between sample and calibration gases. These valves are under control of the 3000MA Electronics. They can be externally controlled only indirectly through the Remote Cal Inputs, described below.
  • Page 25 20 mA at full scale. (Full scale = 100% of programmable range.) 4-20 mA dc Range ID: –M option only. 8 mA = Low Range, 12 mA = Medium Range, 16 mA = High Range, 20 mA = Air Cal Range. Teledyne Analytical Instruments...
  • Page 26 3 Installation Model 3000MA Figure 3-4: Analog Output Connections Alarm Relays: The three alarm-circuit connectors are spring terminals for making connections to internal alarm relay contacts. Each provides a set of Form C contacts for each type of alarm. Each has both normally open and normally closed contact connections.
  • Page 27 (See Remote Calibration Protocol below.) Remote Calibration Protocol: To properly time the Digital Remote Cal Inputs to the Model 3000MA Analyzer, the customer's controller must monitor the Cal Relay Contact. 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.
  • Page 28 If you have the –C Internal valve option—which includes additional zero and span gas inputs— the 3000MA automatically regulates the zero, span and sample gas flow. Range ID Relays: Four dedicated Range ID relay contacts. The first three ranges are assigned to relays in ascending order—Low range is as-...

  • Page 29: Remote Probe Connector

    Toggling input. Stops/Starts any status message output from the RS-232, until st<enter> is sent again. The RS-232 protocol allows some flexibility in its implementation. Table 3-2 lists certain RS-232 values that are required by the 3000MA implementation. Table 3-2: Required RS-232 Options...

  • Page 30: Testing The System

    3 Installation Model 3000MA Figure 3-7: FET Series Resistance Testing the System Before plugging the instrument into the power source: • Check the integrity and accuracy of the gas connections. Make sure there are no leaks. • Check the integrity and accuracy of the electrical connections.

  • Page 31: Operation

    • Set alarm setpoints, and modes of alarm operation (latching, failsafe, etc). Before you configure your 3000MA these default values are in effect: Ranges: LO = 1 %, MED = 5 %, HI = 10 % Auto Ranging: ON Alarm Relays: Defeated, 10 %, HI, Not failsafe, Not latching Zero: Auto, every 0 days at 0 hours Span: Auto, at 20.9 %, every 0 days at 0 hours...

  • Page 32: Using The Data Entry And Function Buttons

    4 Operation Model 3000MA 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 arrow buttons can be used to increment or decrement that modifiable item.

  • Page 33: The System Function

    Installing or Changing a Password, below, for a 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 Teledyne Analytical Instruments...

  • Page 34: Setting The Display

    4 Operation Model 3000MA 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.

  • Page 35: Setting Up An Auto-Cal

    Note: If you require highly accurate Auto-Cal timing, use external Auto-Cal control where possible. The internal clock in the Model 3000MA is accurate to 2-3 %. Accordingly, internally scheduled calibrations can vary 2-3 % per day. To setup an cycle: Choose System from the Function buttons.

  • Page 36: Entering The Password

    4 Operation Model 3000MA If you have decided not to employ password security, use the default password . 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.

  • Page 37: Installing Or Changing The Password

    Characters Available for Password Definition: 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. Teledyne Analytical Instruments...

  • Page 38: Logout

    4 Operation Model 3000MA Wait a moment for the entry screen. You will be given clearance 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.

  • Page 39: System Self-Diagnostic Test

    Operation 4 4.3.5 System Self-Diagnostic Test The Model 3000MA 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...

  • Page 40: The Span Functions

    4 Operation Model 3000MA 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...

  • Page 41: Manual Mode Spanning

    Press Enter to enter the span value into the system and begin the span calibration. Once the span has begun, the microprocessor samples the output at a predetermined rate. It calculates the difference between successive samplings and displays this difference as on the screen. It takes several seconds 4-11 Teledyne Analytical Instruments...

  • Page 42: The Alarms Function

    The Alarms Function The Model 3000MA 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.
  • Page 43 Five parameters can be changed on this 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). 4-13 Teledyne Analytical Instruments...

  • Page 44: The Range Function

    Med = 0–5.00 % High = 0–10.00 %. The Model 3000MA 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. If the current range limits are exceeded, the instrument will automatically shift to the next higher range.

  • Page 45: Setting The Analog Output Ranges

    25 %, even if the oxygen concentration is higher than 25 %. 4.6.3 Fixed Range Analysis The autoranging mode of the instrument can be overridden, forcing the analyzer DC outputs to stay in a single predetermined range. 4-15 Teledyne Analytical Instruments...

  • Page 46: The Analyze Function

    Signal Output The standard Model 3000MA Percent Oxygen Analyzer is equipped with two 0–1 V dc analog output terminals accessible on the back panel (one concentration and one range ID). The –MA option also has two isolated 4–...
  • Page 47 They generate a steady preset voltage (or current if you have current outputs) to represent a particular range. The following table gives the range ID output for each analysis range: Range Voltage (V) Current (mA) 0.25 0.50 0.75 CAL (0-25%) 1.00 4-17 Teledyne Analytical Instruments...
  • Page 48 4 Operation Model 3000MA 4-18 Teledyne Analytical Instruments...

  • Page 49: Maintenance

    Section 4.4 Calibration. WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS MANUAL. Fuse Replacement 1. Place small screwdriver in notch, and pry cover off, as shown in Figure 5-1. Figure 5-1: Removing Fuse Block from Housing Teledyne Analytical Instruments...

  • Page 50: System Self Diagnostic Test

    5 Maintenance Model 3000MA 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 Figure 5-2. 4. Reassemble Housing as shown in Figure 5-1.

  • Page 51: Major Internal Components

    The gas piping is illustrated in Figure 2-4, and the major electronic components locations are shown in Figure 2-5, in chapter 2. WARNINGS:See warnings on the title page of this manual. The 3000MA contains the following major components: • Analysis Section...

  • Page 52: Cleaning

    5 Maintenance Model 3000MA Cleaning If instrument is unmounted at 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. Do not use any harsh solvents such as paint thinner or benzene.

  • Page 53: Appendix

    Percent Oxygen Analyzer Appendix Appendix A-1 Model 3000MA Specifications Packaging: General Purpose • Flush panel mount (Standard). • Rack mount — Relay rack mounted to contain either one or two instruments in one 19" relay rack mountable plate (Optional). Sensor: Paramagnetic Sensor 90 % Response Time: 10 seconds at 25 °C (77 °F).
  • Page 54 Appendix Model 3000MA range, on factory default analysis ranges, once thermal equilibrium has been reached. Analog outputs: 0-1 V dc percent-of-range (Standard) 0-1 V dc range ID (Standard) 4-20 mA dc—isolated— percent-of-range (Optional) 4-20 mA dc—isolated— range ID (Optional) Dimensions: 19 cm high 24.9 cm wide 31 cm deep (5.96...

  • Page 55: Recommended 2-Year Spare Parts List

    NOTE: Orders for replacement parts should include the part number (if available) and the model and serial number of the instrument for which the parts are intended. Orders should be sent to: TELEDYNE Analytical Instruments 16830 Chestnut Street City of Industry, CA 91749-1580 Phone (626) 934-1500, Fax (626) 961-2538...

  • Page 56: Drawing List

    Appendix Model 3000MA A-3 Drawing List D-71698 Outline Drawing B-71699 Piping Diagram A-4 19-inch Relay Rack Panel Mount Figure A-1: Single and Dual 19" Rack Mounts Teledyne Analytical Instruments...

  • Page 57: Auto Mode Zeroing

    Then the analyzer automatically returns to the Analyze mode. Manual Mode Zeroing Press Zero to enter the Zero function. The screen that appears allows you to select between automatic or manual zero calibration. Use the keys Teledyne Analytical Instruments...
  • Page 58 Once span settling completes, the information is stored in the microprocessor, and the instrument automatically returns to the Analyze mode. NOTE: The MSDS on this material is available upon request through the Teledyne Environmental, Health and Safety Coordinator. Contact at (626) 934-1592 Teledyne Analytical Instruments...
  • Page 59 Percent Oxygen Analyzer Appendix Teledyne Analytical Instruments...
  • Page 60 Appendix Model 3000MA A-5 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. Manufacturer: Teledyne Analytical Instruments...
  • Page 61 Chronic exposure from the lead contained in this product is extremely unlikely. Teledyne Analytical Instruments...
  • Page 62 Appendix Model 3000MA Signs and Symptoms of Contact of electrolyte with skin or eyes will cause a Exposure: 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.
  • Page 63 NOTE: The above information is believed to be correct and is offered for your information, consideration, and investigation. It should be used as a guide. Teledyne Brown Engineering Analytical Instruments shall not be held liable for any damage resulting from handling or from contact with the above product.

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