Teledyne IR7000 Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Teledyne Manuals
  4. Measuring Instruments
  5. IR7000
  6. Operating instructions manual
Teledyne IR7000 Operating Instructions Manual

Teledyne IR7000 Operating Instructions Manual

Ndir gas analyzer
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
OPERATING INSTRUCTIONS FOR
IR7000
NDIR Gas Analyzer
REV. 3

Advertisement

Table of Contents
loading

Related Manuals for Teledyne IR7000

Summary of Contents for Teledyne IR7000

  • Page 1 OPERATING INSTRUCTIONS FOR IR7000 NDIR Gas Analyzer REV. 3...
  • Page 2 Any safeguards required such as locks, labels, or redundancy, must be provided by the user or specifically requested of Teledyne Analytical Instruments at the time the order is placed.

  • Page 3: Table Of Contents

    3.6.1 Analog Output............. 22 3.6.2 Analog Output Connections ......25 3.6.3 Solenoid Valve Connections......25 3.6.4 Optional Relay Outputs........26 3.6.5 Digital I/O Option ..........27 3.6.6 RS-232 Cable............28 3.6.7 Power Connections ..........29 Teledyne Analytical Instruments., - Rev. 3...
  • Page 4 A-3.3 Codes for "c" Type Messages ......77 A-3.4 Codes for “m” Type Messages......78 A-3.5 Codes for “a” Type Messages ......78 Addendum A…………………………………………………………….. Configuration and Compliance Certificates Addendum B…………………………………………………………….. Automatic Calibration Electrical Connection Diagram Teledyne Analytical Instruments, - Rev. 3...

  • Page 5: Important Safety Information

    Important Safety Information General Format Important information relating to health and safety of personnel, possible equipment damage and special instructions regarding instrument setup and operation are setoff and highlighted within this manual. The following format will be used in this manual to indicate safety hazards and special instructions: Symbol Heading...

  • Page 6: Specific Hazards

    The power jack and plug of the power cable meet International Electro-Technical Commission (IEC) safety standards. When replacing this cable, use only the proper replacement cable as listed in the Spare Parts Listing in the Appendix. Teledyne Analytical Instruments., - Rev. 3...
  • Page 7 WARNING: Do not substitute parts or modify this instrument. The IR7000 was designed and tested at the factory. The quality, safety and workmanship inherent in this product is a result of careful design, selection and assembly of components. Any use of non-authorized replacement parts can impair the functioning of this system.
  • Page 8 Safety IR7000 THIS PAGE INTENTIONALLY LEFT BLANK. Teledyne Analytical Instruments., - Rev. 3...

  • Page 9: Introduction

    Introduction...

  • Page 10: Overview

    The Teledyne analytical Instruments Model IR7000 Non-Dispersive Infrared Gas Analyzer is a versatile microprocessor based analyzer for measuring or monitoring a gas stream. The IR7000 analyzer is available in a variety of configurations to suit most applications. The IR7000 series analyzer is designed for rapid monitoring of a process gas stream.
  • Page 11 IR7000B Wall Mount Unit The standard rack mount model IR7000 is shown in Figure 1-1 and the portable IR7000P is shown in Figure 1-2. The explosion proof models have the analysis unit installed in an explosion proof housing and employ steel tubing and fittings in the sample system.

  • Page 12: Standard Features

    Introduction 1 IR7000 Standard Features The following features are standard on the IR7000 series of analyzers: • User selected automatic zero and span calibration • Linearized output over the entire full scale range eliminating the need for separate instrument ranges to achieve full span •...
  • Page 13 NDIR Gas Analyzer Introduction 1 To extend the versatility of the Ir7000 series of analyzers, many options are available. • Dual optical bench for simultaneous monitoring of 2 gases • Oxygen channel (0–25% or 0–100%). The IR7000 series easily accepts Teledyne analytical Instruments oxygen electrochemical cell for measuring oxygen levels in the process gas.

  • Page 14: Ir Detection

    Z-Purge system for automatic purging of the NEMA-4 enclosure. IR Detection Central to the IR7000 analyzer is the unique patented IR detector. It incorporates 2 chambers in optical series at the end of a gold-coated sample cell. The chambers are connected through a tiny orifice. IR is differentially absorbed in the 2-chambered detector and causes a mass flow between the chambers.
  • Page 15 • Sample Pump Connector (IR7000P only)—a quick disconnect nylon fitting is mounted on the front panel of portable models for attaching the sample probe to the instrument. Teledyne Analytical Instruments., - Rev. 3...

  • Page 16: Operational Theory

    • Electronics Optical Bench At the heart of the IR7000 NDIR Gas Analyzer is the patented dual chambered balanced detector. The advanced detector design offers higher sensitivity and selectivity with a greater dynamic range compared to other IR detectors in the marketplace.
  • Page 17 IR and accounts for the less intense absorption relative to the primary chamber. The remaining unabsorbed energy is eventually dissipated. Essentially, the front chamber absorbs IR differentially at specific wavelengths characteristic of the gas of interest within the detector Teledyne Analytical Instruments., - Rev. 3...
  • Page 18 “comb out” the offending absorption line or lines before the radiation reaches the detector. The filter cell in some cases acts as a thermal barrier to keep the detector from experiencing sudden temperature fluctuations. Teledyne Analytical Instruments., - Rev. 3...

  • Page 19: Electronics

    NDIR Gas Analyzer Operational Theory 2 Electronics The IR7000 uses a sophisticated microprocessor to control the signal processing, I/O, and display functions within the analyzer. Custom EPROMs are installed with permanently stored data and routines specific to the customer’s application. Depending on what options are installed, 2 or more PCB’s are used in the electronic subsystem.

  • Page 20: Main Board

    In this process, both the amplitude and phase of the digital signal are encoded and integrated. The microprocessor counts the digital pulses and linearizes it using a 7th order polynomial whose coefficients were determined at the factory based on the particular detector. Teledyne Analytical Instruments., - Rev. 3...
  • Page 21 “rolling average” is influenced to a greater degree by the last input. Figure 2-3 is a system block diagram which shows the functional relationship between the electronics and the optical bench. Figure 2-3: System Block Diagram Teledyne Analytical Instruments., - Rev. 3...

  • Page 22: Display Board

    A custom sample system can be designed and fabricated by LSC based on the particular application. Contact Teledyne Analytical Instruments for details. In order to achieve maximum results from the analyzer, some consideration must be given to the sample system design. The sample...
  • Page 23 3 solenoid valves. Refer to Section 3 Installation and Setup for details regarding the installation of these components. • The sample gas should be vented to atmospheric pressure. If the Teledyne Analytical Instruments., - Rev. 3...

  • Page 24: Internal Gas Handling System

    The gas handling system inside the analyzer is similar in principle for all models. The following information describes the internal gas handling system for the IR7000 model. Variations for other models will be noted. Figure 2-4 is a diagram of the internal components and plumbing for directing calibration or sample gas through the analyzer.
  • Page 25 NOTE: Because these models are often supplied for custom applications, please check the front of this manual for any included Addendum which will describe features, notes and warnings that specifically apply to your instrument. Teledyne Analytical Instruments., - Rev. 3...

  • Page 26: Installation

    Contact the factory for missing parts. Mounting the Analyzer The ir7000 series of analyzers are designed to be used indoors and in a general-purpose area. The split-architecture models (explosion proof) are designed to have the analysis unit operate in a hazardous environment with the control unit remotely located in a general-purpose area.

  • Page 27: Gas Connections

    For maximum response, locate the instrument as close to the sample line as possible. The ir7000 is designed for mounting into a standard 19” instrument rack. When mounting, make sure that there are no fans which exhaust directly at the instrument. The IR7000B is a wall mountable unit housed in a NEMA-4 enclosure.

  • Page 28: Sample System Considerations

    NOTE: To run gas through the sample cell on instruments using the autocalibration feature, you must apply power to the instrument and to energize the solenoid valves. Teledyne Analytical Instruments., - Rev. 3...

  • Page 29: Electrical Connections

    5 psig in an effort to increase the flow. Electrical Connections All electrical connections to the analyzer are made on the rear panel. Figure 3-5 shows the rear panel for the IR7000 analyzer. Other models are similar. Electrical connections to be made at the rear panel are: •...

  • Page 30: Analog Output

    Figure 3-5: IR7000 Rear Panel 3.6.1 Analog Output The standard model IR7000 is equipped with a single set of analog output terminals accessible from the rear panel. The output is set at the factory to 0–1 VDC but can be changed to 0–5V or 0–10V full scale by moving the slides on the switch labeled “S1”...
  • Page 31 , and the MODE is set to LINEAR, then the output would be: 4–20 IGNAL OPTIONAL UTPUT UTPUT Voltage (V) URRENT 10.4 12.0 13.6 15.2 16.8 18.4 20.0 I/O BOARD SWITCH POSITIONS FOR VOLTAGE OUTPUT S1-1 S1-2 S1-3 S1-4 IR Volt Volt 10V. 10V. Teledyne Analytical Instruments., - Rev. 3...
  • Page 32 Installation 3 IR7000 Figure 3-6: Location of Slide Switch S1 on I/O Board Teledyne Analytical Instruments., - Rev. 3...

  • Page 33: Analog Output Connections

    ZERO will be energized. The solenoid connected to the SPAN terminal will be de- energized. See Table 3-1 for the solenoid valve status during autocalibration for the suggested sample systems given in Figures 3-1 and 3-2. Teledyne Analytical Instruments., - Rev. 3...

  • Page 34: Optional Relay Outputs

    3.6.4 Optional Relay Outputs AC / DC relays are available as an option on the IR7000 series of analyzers. This option is not available for the portable model. If the optional relays (K1, K2, K3) have been installed, the sets of connections on the rear panel will be functional.

  • Page 35: Digital I/O Option

    Thomas & Betts Co. P/N 622-24FM. Table 3-2 shows the pin connections for the connector mounted on the rear panel. Table 3-3 indicates the logic used in the range selection and identification. Teledyne Analytical Instruments., - Rev. 3...

  • Page 36: Rs-232 Cable

    A standard DB-9 male connector is mounted on the rear panel for connection to a remote PC computer via a Teledyne Analytical Instruments., - Rev. 3...

  • Page 37: Power Connections

    Figure 3-7: RS-232 Pin Assignment 3.6.7 Power Connections The IR7000 is shipped configured for 120 or 230 VAC operation. After all other electrical and gas connections have been made, connect the AC power to the power entry module on the rear panel.
  • Page 38 Installation 3 IR7000 can be configured for operation using the SETUP and MODE buttons on the front panel. Refer to Section 4 for entering SETUP and MODE parameters. Teledyne Analytical Instruments., - Rev. 3...

  • Page 39: Operation

    Operation Overview There are 4 steps involved in operating the IR7000 NDIR Gas Analyzer: 1. Initial warm up—the analyzer must be powered up and stabilized before introducing a sample for analysis. The optimum warm up time is 3 hours although the instrument can be used after 1 hour.
  • Page 40 SETUP MODE Cal Gas Calibrate Full Auto Chart = Range (1-4) Filter = Alarm L Calibration Hold/Track Alarm H Linear/Non linear Cal Delay Bright = O2 Cal Gas Alarm = On/Off Auto = Full/Zero Teledyne Analytical Instruments., - Rev. 3...
  • Page 41 SETUP menu. In order to get back to the menu you were working in, cycle through all 5 or 6 (depending on the model) submenus. Teledyne Analytical Instruments., - Rev. 3...
  • Page 42 You have 60 seconds to either save or discard your changes. The default value is discard. When the changes are discarded, either the default instrument values or the last saved values will be set. Teledyne Analytical Instruments., - Rev. 3...
  • Page 43 CHART 1 submenu. NOTE: The dynamic range of the IR7000 detector is 1000:1 which means that it can respond to a 1 PPM change in a sample containing 1000 PPM. This is fixed by the design of the detector and is independent of the range setting.
  • Page 44 The time delay begins when the calibration is requested either manually or through the autocalibration feature. During the delay, the sample cell should be purged with zero or span gas depending on the particular calibration. Teledyne Analytical Instruments., - Rev. 3...
  • Page 45 If after 5 attempts at calibration the system still detects an unstable concentration, a LOW CALIB FLOW alarm will be indicated on the display. If this occurs, refer to Section 6.3.1. Teledyne Analytical Instruments., - Rev. 3...
  • Page 46 There is a 60-second timer on this screen. Press the UP button to save your changes or the DOWN button to discard the changes within the 60-second time limit. A confirmation screen will then appear. Teledyne Analytical Instruments., - Rev. 3...

  • Page 47: The Mode Menu

    Select the calibration event. Press the UP button (UPS) to select a span calibration. Press the DOWN button (ZRO) to select a zero calibration. Press the SETUP button to select a full calibration (both zero and span). Teledyne Analytical Instruments., - Rev. 3...
  • Page 48 See Section 4-2 for information on how to set up the chart ranges. The analyzer is equipped with an autoranging feature which will automatically select the correct chart range during the measurement. Teledyne Analytical Instruments., - Rev. 3...
  • Page 49 FILTER submenu. Use the UP or DOWN arrows to toggle through the available filter settings. The filter value will be indicated on the top line of the display. Releasing the MODE button will set the filter value. Teledyne Analytical Instruments., - Rev. 3...
  • Page 50 If the calibration has changed since the last calibration, jump in the reading as the new calibration takes effect. See Figure 4-4. Teledyne Analytical Instruments., - Rev. 3...
  • Page 51 NDIR Gas Analyzer Operation 4 Figure 4-3: Output Jump After New Calibration, CAL=HOLD Figure 4-4: Display & Output Jump After New Calibration, CAL=TRACK Teledyne Analytical Instruments., - Rev. 3...
  • Page 52 Press and hold the MODE button one more time to lock onto the BRIGHT submenu. Use the UP or DOWN arrows to toggle through the 4 levels (0–4) of brightness settings. The display will immediately respond to your selection. Teledyne Analytical Instruments., - Rev. 3...
  • Page 53 Automatic calibrations can be selected to be either zero only or zero and span. • Use the “up” arrow button to select either a zero or full (zero and span) automatic calibration at the intervals selected in the SETUP menu under FULL/AUTO. Teledyne Analytical Instruments., - Rev. 3...

  • Page 54: Calibration

    Typical Sample System Two typical piping diagrams for the IR7000 are shown in Figure 5-1. The explosion proof models can use a similar sample system and can control up to 3 solenoid valves. The sample system for the explosion proof...

  • Page 55: Manual Calibration

    B is set to flow gas in the position shown in the inset. • While watching the flowmeter, use the needle valve to adjust the flow to 1.5 SCFH or to the same flowrate that is used for sample gas. Teledyne Analytical Instruments., - Rev. 3...

  • Page 56: Manual Span Calibration

    5.3.2 Manual Span Calibration CAUTION: It is important to use a valid SPAN gas for calibration. The concentration of the span gas must be greater than 50% of the full range of the instrument, preferably 80%. Teledyne Analytical Instruments., - Rev. 3...
  • Page 57 It is important to close the calibration gas valve and open the sample gas valve during this delay to ensure sufficient purging has occurred before monitoring is resumed. Teledyne Analytical Instruments., - Rev. 3...

  • Page 58: Auto Calibration

    See Section 6 Maintenance. AUTO Calibration The IR7000 has a built-in auto calibration routine. To use this feature, the user must install a solenoid valve on each of the calibration gas sources. Electrical connections for the solenoid valves are made on the rear panel at the Zero and Span Valve terminals.

  • Page 59: Calibration Issues

    ZERO gas may cause calibration errors. At the factory, during initial setup and calibration, a valid delta is established using dry nitrogen and an appropriate span gas for the application at hand. When the instrument is first Teledyne Analytical Instruments., - Rev. 3...
  • Page 60 AND the alarm is acknowledged. Correcting the conditions of the alarm only will NOT clear the alarm message. Acknowledging the alarm only will NOT clear the alarm. YOU MUST DO BOTH! To acknowledge any alarm, press the UP button on the front display. Teledyne Analytical Instruments., - Rev. 3...

  • Page 61: Maintenance

    6.1.2 Particle Filter The sample path in some versions of the IR7000 is equipped with a disposable 0.3-micron particulate filter. This filter is not meant to be the primary sample filtering device.
  • Page 62 Reattach the tubing ends onto the filter. • Replace the cover and secure it with the screws. • Remove any lock-out devices, connect the power cord to the AC source and turn the instrument ON. Teledyne Analytical Instruments., - Rev. 3...

  • Page 63: Service

    With a new filter, the flow will increase. Readjust the flow to 1.5–2.0 SCFH. Service The IR7000 is highly integrated and has very few user-serviceable areas. This section covers: • Removal of the optical bench and components for cleaning •...
  • Page 64 O-rings that are used to couple the cell to the detector and source. From the detector end of the cell to the source they are: • Sample Cell End, Detector Side • Pressure Plate Teledyne Analytical Instruments., - Rev. 3...
  • Page 65 10. Loosen the 4 screws in the brown coupling between the detector and the sample cell but do not remove. NOTE: If the instrument is designed for high percentage analysis and no gold colored Sample cell is visible, then remove the 4 screws. Teledyne Analytical Instruments., - Rev. 3...

  • Page 66: Cleaning The Sample Cell

    Use caution when handling the cell. 1. Clean the Sample cell with soap and water followed by a final rinse in de-ionized or distilled water. 2. Prepare a final rinse solution comprised of: Teledyne Analytical Instruments., - Rev. 3...

  • Page 67: Replacing The Ir Source

    2. Turn off the instrument and, if connected, remove the battery charger. 3. Disconnect the probe from the front of the instrument. 4. Remove the screws securing the top case and slide the case off the analyzer. Teledyne Analytical Instruments., - Rev. 3...

  • Page 68: Changing The Fuse

    ( if portable, remove the battery charger.) 3. Locate the fuse holder and pop out the fuse. 4. Replace with a 1A or 2A, 250V fuse. 5. Reconnect the AC power. 6. Turn the instrument ON. Figure 6-3: Fuse Location. Teledyne Analytical Instruments., - Rev. 3...

  • Page 69: Display Messages

    Various messages appear on the front panel display during operation. There are 3 categories of messages: • Error Messages • Normal Operation Messages • Normal Operator-Induced Messages The following sections describe the messages and where appropriate, suggest corrective action. Teledyne Analytical Instruments., - Rev. 3...

  • Page 70: Error Messages

    Memory backup battery is discharged. data cannot be restored. Replace. A calibration failed for one of the above reasons. The data from the most IR CAL RESTORED recent calibration is restored as the current value. Teledyne Analytical Instruments., - Rev. 3...
  • Page 71 Insufficient cell purge. Increase CAL DELAY period or purge time. An O zero calibration [CAUSE] was attempted and did not Check for proper zero gas. OXYCALS RESTORED succeed. NEED GOOD CALS Check sample system for leaks. Teledyne Analytical Instruments., - Rev. 3...
  • Page 72 Replace the O sensor. The digitized oxygen O2 =*SENSOR FAIL* sensor signal is If the error occurs again, discontinue significantly out of range. use of the instrument and contact LSC. Teledyne Analytical Instruments., - Rev. 3...

  • Page 73: Normal Operation Messages

    Indicates that the instrument rejected the data captured while attempting a calibration. It is extending the RETRY calibration in an attempt to capture valid data. The battery installed in the portable model is nearly BATTERY LOW discharged. Teledyne Analytical Instruments., - Rev. 3...

  • Page 74: Normal Operator Induced Messages

    Screen from the SETUP menu. It indicates the period between automatic calibrations. Change the period using the front panel UP and DOWN SETUP: CALTIME keys. A value of 0 turns the AUTO calibration feature OFF. Teledyne Analytical Instruments., - Rev. 3...
  • Page 75 LINEAR/NONLINEAR from the detector. Screen from the MODE menu. Alters the display MODE: BRIGHT = X brightness. Screen from the MODE menu. Used to determine the MODE: AUTO = ZERO/FULL type of auto calibration. Teledyne Analytical Instruments., - Rev. 3...
  • Page 76 Screen from the MODE menu. Allows the operator to toggle the audible alarm on or off. MODE: ALARM = ON/OFF If the alarm is sounding, pressing either the UP or DOWN key will acknowledge the alarm and silence it. Teledyne Analytical Instruments., - Rev. 3...

  • Page 77: Appendix

    Sample Condition: Non-condensing, particulate free Operating Conditions: -10° to +50°C (14°–122°F) Storage Conditions: -10° to +80°C (14°–176°F) 0° to +50°C (14°–122°F) oxygen cell Warm-up Time: 3 hours optimum, usable in 1 hr. Teledyne Analytical Instruments., - Rev. 3...
  • Page 78 Drift: ±0.3% of f.s. determined on max.range absolute for all other ranges. Trace: ±1.0% of f.s. determined on max.range. Absolute for all other ranges. Response Time (T90): User selectable 15–60 seconds typically for nominal flow rates Teledyne Analytical Instruments., - Rev. 3...

  • Page 79: Recommended Spare Parts List

    Orders should be sent to: Teledyne Analytical Instruments 16830 Chestnut St. City of Industry, Ca. 91748 Phones: (626) 961-9221, (626) 934-1500 Fax: (626) 961-2538 Email: sales@IR7000.com Teledyne Analytical Instruments., - Rev. 3...

  • Page 80: Rs-232 Communication Protocol

    • The RS-232 serial communication option allows back and forth communication between the IR7000 and a remote PC. The features of the IR7000 can be controlled and interrogated through the serial port. It will output data in response to a variety of requests.
  • Page 81 If a setpoint code containing an inappropriate value is sent, one of several error codes will be returned. All setpoints are stored in 16 bit registers so all setpoint values must be less than 65,000 and must be positive. Teledyne Analytical Instruments., - Rev. 3...
  • Page 82 Messages containing "a" type codes retrieve alarm messages from the buffer that stores the alarm messages that are currently valid. Example: the code (eGA) instructs the instrument to Gather Alarm. This code returns the number of alarms gathered. Teledyne Analytical Instruments., - Rev. 3...
  • Page 83 (aGA00002+) Two alarms have been retrieved. Example: the code (aEA) instructs the instrument to Emit Alarm . This code returns a 2 digit alarm number with 16- character message text. sent: (aEA) returned: (aEA1.5[ir_under_range]) Teledyne Analytical Instruments., - Rev. 3...

  • Page 84: A-3.1 Codes For "E" Type Messages

    <number> (ir) Sensor raw counts <number> (ir) Units of displayed value? “name” (“PPM”) oXygen span cal setting? <number> (ir) oXygen value in Percent? <number> Decimal value oxygen <number> (ir) High limit alarm setting <number> Teledyne Analytical Instruments., - Rev. 3...

  • Page 85: A-3.2 Codes For "S" Type Messages

    0 = disabled 1 = enabled Linear Mode 0 = linear 1 = nonlinear 2 = counts Cal Select 0 = Zero 1 = Span 2 = both Alarm acKnowledge 1 = acknowledge alarm Teledyne Analytical Instruments., - Rev. 3...

  • Page 86: A-3.4 Codes For "M" Type Messages

    A-3.5 Codes for “a” Type Messages The codes for "a" type messages are: ESSAGE ETURN Gather Alarm # of alarms gathered Emit Alarm one of the alarms gathered Define Alarm with alarm #, returns alarm text Teledyne Analytical Instruments., - Rev. 3...

Table of Contents