Teledyne 3300ZB User's Manual
Contents
1. Model 3300ZB RS 232 optional output The same digital information is also sent to a 8 bit digital to analog converter DAC that produces the 0 10 VDC analog concentration signal and the 0 10 VDC analog range ID output A current to voltage converter E I CONV produces the 4 20 mADC analog concentration signal Teledyne Analytical Instruments Oxygen Analyzer Installation Installation ENG Haaa TT Installation of the analyzer includes Unpacking the system Mounting the control unit to a wall Making the electrical connections Making the gas connections Des Testing the installation CAUTION READ THIS CHAPTER IN ITS ENTIRETY BEFORE INSTALLING THE UNITS AN THE MODEL 33002 IS FOR INDOOR USE ONLY THE SAMPLE MUST BE FREE OF ENTRAINED SOLIDS WATER OR COMBUSTIBLE COMPOUNDS 3 1 Unpacking the Analyzer As soon as you receive the instrument carefully unpack and inspect control unit external probe and any included accessories for damage Immediately report any damage to the shipping agent The analyzer is shipped with all materials needed to install and prepare the system for operation Teledyne Analytical Instruments Installation Model 3300ZB 3 2 Location and Mounting 3 2 1 Control Unit Installation The 3300ZB control unit is designed to be wall mounted in a general purpose indoor area away from moisture and the elements The unit sh2. OPERATING INSTRUCTIONS FOR Model 33002 Trace Oxygen Analyzer fo o Series 3300ZB Trace Oxygen P N M3300ZB 2 11 2014 Toxic gases 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 Before conducting any maintenance or servicing consult with authorized supervisor manager Teledyne Analytical Instruments Model 3300ZB Copyright 2014 Teledyne Instruments 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 Instruments Analytical Instruments 16830 Chestnut Street City of Industry CA 91748 Warranty This equipment is sold subject to the mutual agreement that it is warranted by us free from defects of material and of construction and that our liability shall be limited to replacing or repairing at our factory without charge exce
3. 2 3 1 General 2 3 2 Signal Processing 3 1 Unpacking the Analyzer 3 2 Location and Mounting 3 2 1 Control Unit Installation 3 3 Electrical Connections 3 4 Gas Connections 3 5 Installation Checklist Teledyne Analytical Instruments Model 33002 GALLON Waa ie 4 1 Introduction 4 2 Using the Function and Data Entry Buttons 4 3 Setting the Analysis Ranges 4 3 1 HI Range 4 3 2 LO Range 4 4 Setting the Alarm Setpoints 4 4 1 HI Alarm 4 4 2 LO Alarm 4 4 3 Sensor Fail Alarm 4 5 Selecting a Fixed Range or Autoranging 4 6 Calibration 4 7 LED Display on StartUp Maint nance 5 sasa aaa aia Gae a aa Ge aa NE 5 1 Replacing the Fuse 5 2 Sensor Installation or Replacement 5 2 1 When to Replace a Sensor ana nagane agin NENENG KENEN A 1 Specifications A 2 Spare Parts List A 3 Drawing List Teledyne Analytical Instruments 15 16 16 17 17 17 17 17 18 18 18 19 21 21 22 22 25 25 26 27 vi Oxygen Analyzer List of Figures no Figure 1 1 Figure 1 2 Figure 2 1 Front Panel anane 2 Rear 4 Block Diagram of the Signal Processing Electronics 7 Figure 3 1 Rear Panel Electrical Connectors 11 Figure 3 2 Contact ID for FAILSAFE Relay
4. COULD RESULT POSSIBLY ACCOMPANIED WITH HAZARDOUS CONSEQUENCES This manual provides information designed to guide you through the installation calibration operation and maintenance 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 Please check the front of this manual for any additional information in the form of an Addendum which discusses specific information procedures cautions and warnings that may be peculiar to your instrument Manuals do get lost Additional manuals can be obtained from TI AI at the address given in the Appendix Some of our manuals are available in electronic form via the internet Please visit our website at www teledyne ai com Teledyne Analytical Instruments Oxygen Analyzer Table of Contents Safety Messages Table Of Contents LIST OF FIQUICS oicusciviccrenteiniuencud caventransseadvacsventvexddancvesdvendeans Introduction eee ee 1 1 Overview 1 2 Main Features of the Analyzer 1 3 Front Panel Description 1 4 Rear Panel Description Operational Theory sscisiiiiesinsscorscisceieiasnsedeierteiniarnesetacn 2 1 Introduction 2 2 Zirconium Oxide Sensors 2 2 1 Principles of Operation 2 2 2 The Effect of Pressure 2 3 Electronics
5. Operation 12 Figure 3 3 Piping Diagram 14 Figure 4 1 Front Panel Controls and 15 Figure 5 1 Fuse 21 Figure 5 2 2 Sensor and Cell Block 23 Figure 5 3 A amp B Removal Installation 23 Teledyne Analytical Instruments vii Model 33002 DANGER COMBUSTIBLE GAS USAGE WARNING This is a general purpose instrument designed for use ina non hazardous 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 this equipment are well understood by the user Misuse of this product in any manner tampering with its components or unauthorized substitution of any component may adversely affect the safety of this instrument Since the use of this instrument is beyond the control of Teledyne Instruments Analytical Instruments referred as TI AI no responsibility by TI Al its affiliates and agents for damage or injury from misuse or neglect of this equipment is implied or assumed oa Teledyne Analytical Instruments viii Oxygen Analyzer This page intentionally left blank Teledyne Analytical Instrume
6. as desired After about three seconds the analyzer resumes monitoring in the selected range mode 4 6 Calibration Power up the analyzer and allow the LED reading to stabilize Wait at least ten minutes after powering giving the heater and bias voltages enough time to reach operating voltage Set the alarm set points and the full scale ranges to the desired values Procedure 1 Apply calibration gas of a known concentration A span gas containing an oxygen content of 60 100 of the range of the analyzer is recommended Note Ifthe analyzer output goes above the high alarm set point or below the low alarm set point the front panel ALARM Indicator located beneath the SET function buttons will blink When the SPAN key is pressed the alarm indicator will stop blinking 2 Press the SPAN button once The value on the LED display will blink for 60 seconds while the display tracks the concentration in the span gas Teledyne Analytical Instruments 18 Oxygen Analyzer Operation 3 As the display is blinking once the readout appears stable press either the A or V button to adjust the reading to coincide with the oxygen concentration of the span gas Once set the unit will enter Analyze Mode after approximately five seconds after the last key press Note If no key presses are made during the 60 second period when the display is blinking the analyzer will accept the display value as the true span concentr
7. al Output Range ID Display Alarms System Operating Temp Accuracy Response Time System Power System Enclosure Sensor Type Two user selectable ranges can be set between 0 10 ppm and 0 1 000 ppm oxygen Default ranges are 0 100 ppm and 0 1 000 ppm oxygen Voltage 0 10 VDC negative ground Current 4 20 mA negative ground 0 10 VDC Light emitting diode LED display One high alarm relay adjustable one low alarm relay adjustable one sensor failure relay All alarms failsafe 0 50 C 2 of full scale at constant temperature 5 of full scale over 0 50 C range once temperature equilibrium is reached at 3 and 5 user defined ranges 90 in less than 20 seconds at 25 C AC 100 240 VAC 47 440 Hz Wall mounting NEMA 4 Dimensions 8 W x 10 Hx 6 D Zirconium Oxide Teledyne Analytical Instruments 25 Appendix Model 33002 A 2 Spare Parts List 1 C 64586A 1 76491 1 76490 2 1130 1 S 1439 PC Board Power Supply PCB Board Main Interface Unit Fuse AC 250 VAC IEC Type T 5x20mm Sensor 0 1 000 ppm zirconium oxide IMPORTANT Orders for replacement parts should include the part number and the model and serial number of the system for which the parts are intended Send orders to TELEDYNE ANALYTICAL INSTRUMENTS 16830 Chestnut Street City of Industry CA 91748 Telephone 626 934 1500 Fax 626 961 2538 Web www tel
8. ation and automatically leave the span mode The display will cease blinking The unit is now calibrated If the output of the sensor is outside of the expected range this may be caused by a Bad electrical connection between the controler and sensor b Improperly analyzed or entered calibration gas value Electronics failure The unit will not accept the attempted calibration and will flash 0000 on the LED display unit a valid calibration is performed 4 7 LED Display on StartUp When the unit is powered it will initially display 8 8 8 8 for a short period of time This is to confirm all LED segments are functioning Afterward the LED display will initiate a delay countdown allowing the sensor s heater to begin charging and capture a zero reading Flowing zero gas a sensor is not needed for this instrument adjustment Teledyne Analytical Instruments 19 Operation Model 3300ZB This page intentionally left blank oa Teledyne Analytical Instruments 20 Oxygen Analyzer Maintenance Maintenance Aside from normal cleaning and checking for leaks at the gas connections the Model 3300ZB should not require any maintenance beyond replacement of zirconium oxide sensors and perhaps a blown fuse Routine maintenance includes occasional recalibration as described in Chapter 4 Operation 5 1 Replacing the Fuse If a fuse blows check first to determine the cause then replac
9. displayed value as required until the display reads the desired full scale concentration 4 4 Setting the Alarm Setpoints The alarm set points can be adjusted over the full range of the analyzer 0 1 000 ppm oxygen content The set point values are expressed in ppm only Note The HI Alarm set point MUST be set at a higher concentration than the LO Alarm set point 4 4 1 HI Alarm Setting the HI Alarm sets the value ABOVE which the HI Alarm will activate To Set the HI Alarm 1 Press the SET HI ALARM function button once 2 Within 5 seconds press either the A or V button to raise or lower the displayed value as required until the display reads the desired concentration 4 4 2 LO Alarm Setting the LO Alarm sets the value BELOW which the LO alarm will activate To set the LO Alarm Teledyne Analytical Instruments 17 Operation Model 3300ZB 1 Press the SET LO ALARM function button once 2 Within 5 seconds press either the A or V button to raise or lower the displayed value as required until the display reads the desired concentration 4 4 3 Sensor Fail Alarm Not active in this product 4 5 Selecting a Fixed Range or Autoranging The Model 3300ZB can operate in fixed high fixed low or auto ranging mode To change modes 1 Press and then release the SET HI RANGE and the SET LO RANGE buttons simultaneously 2 Within 5 seconds press either the A or V button until Auto Lo or Hi displays on the LCD
10. e the fuse using the following procedure 1 Disconnect the AC power and place the power switch located on the rear panel in the O position Remove the power cord from the receptacle 2 The fuse receptacle is located in the power cord receptacle assembly in the upper left hand corner of the rear panel See Figure 5 1 Spare fuse compartment Slot T JEN Fuse use Figure 5 1 AC Fuse Replacement 3 Insert a small flat blade screwdriver into the slot in the receptacle wall nearest the fuse and gently pry open the fuse receptacle The fuse holder will slide out The fuse in use is visible in the clip Teledyne Analytical Instruments 21 Maintenance Model 3300ZB To open the spare fuse compartment push on one end until it slides out Remove the bad fuse and replace it with a 5x20 mm 0 5 A 250 VAC IEC time lag T fuse P N F1128 for AC units Replace the fuse holder into its receptacle pushing in firmly until it clicks 5 2 Sensor Installation or Replacement 5 2 1 When to Replace a Sensor The sensors used in this product will typically last five years or longer in service Typically the sensors will fail either high or low Inaccurate or erratic readings are a sign that one of the sensors may have failed In most cases we recommend the entire unit be returned to an authorized Teledyne Service Center for sensor replacement To replace the sensor refer to Figures 5 2 and 5 3 and follow the p
11. edyne ai com or your local representative Teledyne Analytical Instruments 26 Oxygen Analyzer Appendix A 3 Drawing List D80672 Outline Diagram A69265 Piping Diagram Teledyne Analytical Instruments 27
12. hold within the full range of the analyzer 1 1 000 ppm but must be set BELOW the threshold set for the HI Alarm Not active in this product ja This side is closed when IN ALARM This side is closed with NO ALARM condition OR unit is NOT POWERED condition AND unit IS POWERED Figure 3 2 Contact ID for FAILSAFE Relay Operation RS 232 Port The digital signal output RS 232 port is offered as a cost added option on the Model 3300ZB It is a standard RS 232 serial communications port used to connect the analyzer to a modem or other digital device The connector is a standard 9 pin serial connector Pin outs are listed in Table 3 1 Table 3 1 RS 232 Signals RS 232 Sig RS 232 Pin Purpose RD 2 Received Data TD 3 Transmitted Data COM 5 Common Teledyne Analytical Instruments 12 Oxygen Analyzer Installation The RS 232 protocol allows some flexibility in implementation in the choice of values for certain parameters Table 3 2 lists the RS 232 values required by the Model 3300ZB implementation Table 3 2 Required RS 232 Options Parameter Setting Baud 2400 Byte 8 bits Parity none Stop Bits 1 Message Rate 2 per second 3 4 Gas Connections The standard Model 3300ZB has two inlet sample and span and one outlet port All connections have 1 8 tube fittings installed A switching va
13. ich is capable of moving oxygen ions within its crystalline structure This allows for the reduction of oxygen molecules reaching the cathode and the generation of a current equivalent to the amount of oxygen ina sample measured in parts per million ppm Teledyne Analytical Instruments Model 3300ZB The sensor is designed for long term stability with an operating life of 5 years This unit features one or two sensors and can be custom designed for a specific range of oxygen analysis 2 2 2 The Effect of Pressure In order to state the amount of oxygen present in the sample as a specific portion of the gas mixture it is necessary that the sample diffuse into the sensors under constant pressure If the total pressure increases the rate that oxygen reaches the sensors will also increase The electron transfer and therefore the external current will increase even though the proportion of oxygen has not changed It is therefore important that the sample pressure at the sensors usually vent pressure remain relatively constant between calibrations 2 3 Electronics 2 3 1 General The signal processing uses a microcontroller with on board RAM and ROM to control all signal processing input output and display functions for the analyzer System power is supplied from a universal power supply module designed to be compatible with most international power sources The power supply circuitry
14. ion Operation 4 1 Introduction Once the analyzer has been mounted the gas lines connected and the electrical connections made the analyzer can be configured for your application This involves setting the system parameters as follows e Defining the user selectable analysis ranges e Setting alarm set points e Calibrating the instrument All of these functions are performed via the front panel controls shown in Figure 4 1 Analyzing a gas sample for the percent oxygen level through the cell block is the default mode of operation The analyzer is monitoring the oxygen level as long as no front panel buttons have been pressed Model 3300ZA TELEDYNE ANALYTICAL INSTRUMENTS SET HI RANGE SET LO RANGE E E ae TRACE OXYGEN SPAN GET V Figure 4 1 Front Panel Controls and Indicators Teledyne Analytical Instruments 15 Operation Model 3300ZB 4 2 Using the Function and Data Entry Buttons When one of the function buttons is being pressed the analyzer is in the Setup mode or the Calibration mode The four setup function buttons on the analyzer are e SET HI ALARM e SET LO ALARM e SET HI RANGE e SET LO RANGE The Calibration mode button is e SPAN The data entry buttons A and V adjust the value displayed on the TRACE OXYGEN meter while one of the function buttons is being held down e Increments the displayed value upwards e V Increments the displayed value downwards Any of the functi
15. is on the Power Supply PCB which is mounted vertically just behind the rear panel of the control unit The signal processing electronics which includes the signal amplifiers microcontroller analog to digital converter and digital to analog converter are located on the Main PCB It is mounted vertically just behind the front panel of the control Unit Teledyne Analytical Instruments Trace Oxygen Analyzer Operational Theor 2 3 2 Signal Processing Figure 2 1 is a block diagram of the signal processing electronics described below Gs KE AMPL ADC E I CONV 4 20 dc cnet lt 0 10 V dc MICRO CONTROL LER RS 232 DIGITAL DEVICE KEYBOARD DISPLAY RELAYS ALARMS RELAYS ALARMS Figure 2 1 Block Diagram of the Signal Processing Electronics In the presence of oxygen the sensor s produce a current A current to voltage amplifier 1 AMPL converts this current to a voltage The output from the I E amplifier and subsequent buffer circuit not shown is sent to an analog to digital converter ADC and the resulting digital concentration signal is sent to the micro controller The digital concentration signal along with input from the front panel buttons KEYBOARD is processed by the micro controller and appropriate output signals are directed to the display alarm relays and Teledyne Analytical Instruments 7
16. l process conditions While this instrument may be able to provide early warning of imminent danger it has no control over process conditions and it can be misused In particular any alarm or control systems installed must be tested and understood both as to how they operate and as to how they can be defeated Any safeguards required such as locks labels or redundancy must be provided by the user or specifically requested of TI AI at the time the order is placed Therefore the purchaser must be aware of the hazardous process conditions The purchaser is responsible for the training of personnel for providing hazard warning methods and instrumentation per the appropriate standards and for ensuring that hazard warning devices and instrumentation are maintained and operated properly Teledyne Instruments Analytical Instruments the manufacturer of this instrument cannot accept responsibility for conditions beyond its knowledge and control No statement expressed or implied by this document or any information disseminated by the manufacturer or its agents is to be construed as a warranty of adequate safety control under the user s process conditions Teledyne Analytical Instruments ji Oxygen 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 ha
17. lve is provided to feed the unit with either sample or calibration gas as shown in Figure 3 3 A flowmeter and flow controller valve are part of the system and will assist in setting the flow of the gas Sample flow should be adjusted to 2 SCFH The sample vent connection should not restrict the sample flow The sensor is designed to operate at atmospheric pressure Restricting the sample vent line will result in pressurizing the sensor and altering the reading The pressure required will depend on the sampling system When venting into a constant pressure such as the atmosphere controlling input pressure is simple If you are venting into a system of varying pressure then some form of pressure regulation is required to maintain a constant pressure Sample and span pressure must NOT exceed 50 psig 345 Kpa Figure 3 3 shows a standard piping diagram for positive pressure service Teledyne Analytical Instruments 13 Installation Model 3300ZB FLOWMETER 5 4 SCFH Figure 3 3 Piping Diagram 3 5 Installation Checklist Before connecting the instrument to a power source and applying power make sure you have e Correctly installed the sample and exhaust gas lines e Checked for leaks e Set the sample pressure to 5 10 psig nominal Once the above checks have been made you can apply power The instrument is now ready for operation Teledyne Analytical Instruments 14 Oxygen Analyzer Operat
18. nnects to the remote probe or remote analysis unit Teledyne Analytical Instruments Oxygen Analyzer Operational Theory Operational Theory 2 1 Introduction The analyzer is composed of three subsystems 1 Analysis unit with zirconium oxide 2 Control unit with signal processing display and controls 3 Interface unit supplying signals between 1 and 2 The analysis unit is designed to accept the sample gas and direct it to the sensitive surface of the zirconium oxide sensor The control unit processes the sensor output and translates it into an electrical concentration which supplies the customer with range alarm outputs and a meter readout giving the trace oxygen level It contains a microcontroller that manages all signal processing input output and display functions for the analyzer The interface unit receives power from the control unit and creates precision heater and bias voltages for the zirconium oxide sensor 2 2 Zirconium Oxide Sensors 2 2 1 Principles of Operation Teledyne s zirconium oxide sensor is a miniature solid state sensor It uses a stabilized zirconia disc as an electrolyte with a sensing electrode the cathode and a counter electrode the anode on each side of the disc The zirconia is heated to a temperature of about 500 C via a built in heater By applying a suitable reference voltage across the cathode and anode the heated zirconia acts as an electrolyte wh
19. nts Oxygen Analyzer Introduction Introduction 1 1 Overview The Teledyne Analytical Instruments TAI Model 3300ZB is a microprocessor based trace oxygen analyzer for real time measurement of trace amounts of oxygen in inert gases or in a wide variety of gas mixtures It features simple operation fast response and a compact rugged construction 1 2 Main Features of the Analyzer The main features of the analyzer include e High resolution accurate readings of oxygen content from 0 10 parts per million ppm through 0 1 000 ppm Large bright light emitting diode meter readout e Simple pushbutton controls e Advanced zirconium oxide measuring technology sensors e Fast response and recovery time e Microprocessor based electronics 8 bit CMOS with on board RAM and 16 KB ROM e Two user selectable ranges depending on sensor configuration allow best match to user s process and equipment e Operator can select auto ranging allowing the analyzer to automatically select the proper preset range for a given measurement or lock the analyzer onto a single range e Two concentration alarms with adjustable set points e Three analog outputs two for measurement 0 10 VDC and negative ground 4 20 mADC and one for range identification 0 10 VDC Teledyne Analytical Instruments Introduction Model 3300ZB e Compact and rugged control unit wall mounting NEMA 4 rated enclosure e External probe 1 3 Fron
20. ons can be selected at any time by pressing the appropriate button Each function will be described in the following sections Although the operator can use any function at any time the order chosen in this manual is appropriate for an initial setup 4 3 Setting the Analysis Ranges The two user definable analysis ranges are both capable of being adjusted from 0 10 ppm to 0 1 000 ppm oxygen concentration The analyzer automatically switches from the LO range to the HI range when the oxygen concentration reaches the LO range full scale value It will switch back to the LO range when the oxygen concentration falls below the LO range full scale value Note The HI Range set point MUST be set at a higher concentration than the LO Range set point Teledyne Analytical Instruments 16 Oxygen Analyzer Operation 4 3 1 HI Range Setting the HI Range full scale value defines the LEAST sensitive analysis range to be used To set the HI Range 1 Press the SET HI RANGE function button once 2 Immediately within 5 seconds press either the A or V button to raise or lower the displayed value as required until the display reads the desired full scale concentration 4 3 2 LO Range Setting the LO Range full scale value defines the MOST sensitive range to be used To set the LO Range 1 Press the SET LO RANGE function button once 2 Immediately within 5 seconds press either the A or V button to raise or lower the
21. ould be installed at viewing level in a sheltered area CAUTION FOR THE DC POWERED VERSION THE CONTROL UNIT CHASSIS MUST BE ISOLATED FROM THE INPUT POWER GROUND Refer to the Outline Diagram for the physical dimensions of the analyzer which can be found at the back of the manual 3 3 Electrical Connections Figure 3 1 shows the Model 3300ZB rear panel Primary Input Power The power cord receptacle fuse block and power switch are located in the same assembly A 6 foot standard AC power cord is supplied with the control unit Insert the female plug end of the power cord into the power cord receptacle The universal power supply allows direct connection to any 100 240VAC 50 60 Hz power source The fuse block to the right of the power cord receptacle accepts a 5 x 20 mm 0 5A time delay fuse see Fuse Replacement in Chapter 5 Maintenance The power switch is located on the right hand end of the power source input receptacle assembly Teledyne Analytical Instruments 10 Trace Oxygen Analyzer Installation of Jo 0 10VDC 4 2 OP 100 240 50 60Hz 0 3 A 250V 5 T FUSE Figure 3 1 Rear Panel Electrical Connectors Analog Outputs There are three DC output signal connectors with screw terminals on the panel There are two wires per output with the polarity noted See Figure 3 1 The outputs are 0 10 V Concentration Voltage is proportional to oxygen reading from V at 0
22. ppm oxygen to 10 V at full scale ppm oxygen Full scale 100 of programmed range 0 10 V Range ID 3 33 V Low Range 6 66 V High Range 4 20 mA Range Current is proportional to oxygen reading from 4 mA at 0 ppm oxygen to 20 mA at full scale ppm oxygen Full scale 100 of programmed range Alarm Relays The three alarm circuit connectors are screw terminals for making connections to internal alarm relay contacts There is one set of contacts for each type of alarm Contacts are Form C with normally open and normally closed contact connections capable of switching up to 0 5A at 125 VAC into a resistive load The alarm relay circuits are designed for failsafe operation meaning the relays are energized during normal operation If power fails the relays de energize alarms activated The contact connections are indicated diagrammatically on the rear panel as normally closed NC common C and normally open NO Figure 3 2 explains how these act in failsafe operation Teledyne Analytical Instruments 11 Installation Model 3300ZB The specific descriptions for each type of alarm are as follows HI Alarm LO Alarm Sensor Fail Configured as high alarm actuates when concentration is above threshold Can be set anywhere within the full range of the analyzer 1 1 000 ppm but must be set ABOVE the threshold set for the LO Alarm Configured as low alarm actuates when concentration is below thres
23. pt for transportation or at customer plant at our option any material or construction in which defects become apparent within one year from the date of shipment except in cases where quotations or acknowledgements provide for a shorter period Components manufactured by others bear the warranty of their manufacturer This warranty does not cover defects caused by wear accident misuse neglect or repairs other than those performed by TI AI an authorized service center We assume no liability for direct or indirect damages of any kind and the purchaser by the acceptance of the equipment will assume all liability for any damage which may result from its use or misuse We reserve the right to employ any suitable material in the manufacture of our apparatus and to make any alterations in the dimensions shape or weight of any parts in so far as such alterations do not adversely affect our warranty Important Notice This instrument provides measurement readings to its user and serves as a tool by which valuable data can be gathered The information provided by the instrument may assist the user in eliminating potential hazards caused by his process however it is essential that all personnel involved in the use of the instrument or its interface with the process being measured be properly trained in the process itself as well as all instrumentation related to it The safety of personnel is ultimately the responsibility of those who contro
24. rocedure below 1 If required purge the lines with nitrogen to remove any toxic or combustible gas from the cell Remove power from the instrument Wait at least 1 2 hour to allow the sensor to cool Unscrew the collar to separate the sensor cap from the sensor block See Figure 5 3 A Carefully lift up the ZrO2 sensor off the PCB and replace with a new sensor Align the tab of the sensor with the tab shown on the silkscreen of the sensor PCB as shown in the inset of Figure 5 3 B Make sure the pins on the sensor mate properly with the sockets on the PCB Without touching the membrane surface push the sensor down until the pins seat in the sockets 5 Replace the cap and screw the collar onto the block threads Apply power to the analyzer and flush the sensor block with nitrogen for 20 minutes to remove trapped air Teledyne Analytical Instruments 22 Oxygen Analyzer Maintenance At EL Cell Block ZrO Sensor at Assembly Set 4 Figure 5 2 Sensor and Cell Block Cell Cap Collar Mating Sockets 4 Alignment O Ring Sensor PCB Tab Figure 5 3 A amp B Cell Removal Installation Rack mounting model shown Teledyne Analytical Instruments 23 Maintenance oa Model 33002 This page intentionally left blank Teledyne Analytical Instruments 24 Appendix Appendix A 1 Specifications Ranges Sign
25. rs that are legible in any lighting environment It has two functions e Meter Readout As the meter readout it displays the oxygen concentration currently being measured e Measurement Parameters Readout It also displays user definable alarm set points ranges and span calibration point when they are being checked or changed 1 4 Rear Panel Description The rear panel contains the electrical input and output connectors Separate rear panel illustrations are shown in Figure 1 2 for the AC and DC powered versions of the instrument The connectors are described briefly here and in detail in the Chapter 3 Installation Teledyne Analytical Instruments Introdu ction Model 3300ZB 100 240 50 6 2 0 250 0 5A FUSE ALARM 2 SENSOR FAIL Figure 1 2 Rear Panel Power Connection AC Power Fuse Holder e Analog Outputs e Alarm Connections e RS 232 Port e External Probe 100 240 VAC 50 60 Hz The connector housing includes the fuse holder and the power switch Replacing the fuse is described in Chapter 5 Maintenance Power Switch Turns the instrument power ON 1 or OFF 0 10 VDC concentration output 0 10 VDC Range ID or optional over range output 4 20 mADC concentration output negative ground HI Alarm LO Alarm and Sensor Failure Alarm connections Serial digital output of concentration and range signals Co
26. t Panel Description All controls and displays except the power switch are accessible from the front panel See Figure 1 1 The front panel has seven pushbutton membrane switches a digital meter and an alarm indicator LED for operating the analyzer These features are described briefly here and in greater detail in Chapter 4 Operation Series 33002 Trace Oxygen e o Figure 1 1 Front Panel Function Keys Seven pushbutton membrane switches are used to select the function performed by the analyzer Set HI Alarm Set the concentration ABOVE which an alarm activates Teledyne Analytical Instruments Oxygen Analyzer Introduction e Set LO Alarm the concentration BELOW which an alarm activates e Set HI Range Set the high analysis range for the instrument up to 0 1 000 ppm e Set LO Range Set the low analysis range for the instrument down to 0 1 000 ppm e Span Span calibrate the analyzer Data Entry Keys Two pushbutton membrane switches are used to manually change measurement parameters of the instrument as they are displayed on the LED meter readout UpArrow Increment values of parameters upwards as they are displayed on the LED readout e Down Arrow Increment values of parameters downwards as they are displayed on the LED readout Digital LED Readout The digital display is a LED device that produces large bright 7 segment numbe
27. zards 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 The definition of these symbols is described below GENERAL WARNING CAUTION Refer to the instructions for details on the specific danger These cautions warn of specific procedures which if not followed could cause bodily Injury and or damage the instrument CAUTION HoT SURFACE WARNING This warning is specific to heated components within the instrument Failure to heed the warning could result in serious burns to skin and underlying tissue gt gt WARNING ELECTRICAL SHOCK HAZARD Dangerous voltages appear within this instrument This warning is specific to an electrical hazard existing at or nearby the component or procedure under discussion Failure to heed this warning could result in injury and or death from electrocution A Technician Symbol All operations marked with this symbol gt are to be performed by gualified maintenance personnel only Additional information and comments regarding a specific component procedure are highlighted in the form of a note No Symbol Teledyne Analytical Instruments ii Model 33002 CAUTION THE ANALYZER SHOULD ONLY USED FOR THE PURPOSE AND IN THE MANNER DESCRIBED IN 1 THIS MANUAL IF YOU USE THE ANALYZER IN A MANNER OTHER THAN THAT FOR WHICH IT WAS INTENDED UNPREDICTABLE BEHAVIOR
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