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Operational Theory

3000ZA2G

Teledyne Analytical Instruments

Figure 2-2: Zirconia Sensor Assembly

Stability and repeatability of the sensor are dependent on

temperature control, flow and reference oxygen stability as well as other
operational variables. Flow rates should be kept constant to minimize
flow errors. The recommended flow rates are as follows:

Sample flow rate:

100-300 ml/min

Reference flow rate:

100-200 ml/min

Maximum flow rate:

500 ml/min

In addition, the flow rate differential between the sample and

reference flows must be less than 200 ml/min. The maximum pressure
applied to the sensor cell is 5 psig.

2.3 Sample System

The sample system delivers gases to the ZrO

sensor from the

analyzer rear panel inlet. Depending on the mode of operation either
sample or calibration gas is delivered.

The Model 3000ZA2G 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.

Содержание 3000ZA2G

Страница 1: ...quired 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 a trained service technician should open the front door of this instrument Only a trained service technician should conduct maintenance and or servicing Before conducting any maintenance or servicing consult with autho...

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Страница 5: ...f 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 th...

Страница 6: ... mark in the box Instrument Serial Number _______________________ Options Included in the Instrument with the Above Serial Number Auto Calibration The Auto Cal option includes a manifold with separate ports for sample in zero and span gases with solenoid control valves The internal valves are entirely under the control of the 3000ZA2G electronics and can be used to automatically switch between gas...

Страница 7: ...are used throughout the Instruction Manual These symbols are visual indicators of important and immediate warnings and when you must exercise CAUTION while operating the instrument See also the Safety Information on the next page STAND BY Instrument is on Stand by but circuit is active GROUND Protective Earth CAUTION The operator needs to refer to the manual for further information Failure to do s...

Страница 8: ...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 WARNING ELECTRICAL SHOCK HAZARD Dangerous voltages appear within this instrument This warning is specific to an electrical hazar...

Страница 9: ...zer 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 ...

Страница 10: ...d ensure that the principles of operation of 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 Analytical Instruments no responsibility by Teledyne Analytical Instruments i...

Страница 11: ...ction 7 2 2 ZrO2 Sensor 7 2 3 Sample System 10 2 4 Zirconium Oxide Sensor Application Notes 11 2 5 Electronics and Signal Processing 11 Installation 15 3 1 Unpacking the Analyzer 15 3 2 Mounting the Analyzer 15 3 3 Rear Panel Connections 16 3 3 1 Gas Connections 17 3 3 2 Calibration Gas 18 3 3 3 Electrical Connections 18 3 3 3 1 Primary Input Power 18 3 3 3 2 50 Pin Equipment Interface Connector 1...

Страница 12: ...iagnostic Test 38 4 3 6 Version Screen 39 4 3 7 Showing Negative Oxygen Readings 39 4 4 The Zero and Span Functions 40 4 4 1 Zero Cal 40 4 4 1 1 Auto Mode Zeroing 41 4 4 1 2 Manual Mode Zeroing 42 4 4 2 Span Cal 42 4 4 2 1 Auto Mode Spanning 42 4 4 2 2 Manual Mode Spanning 43 4 4 3 Span Failure 45 4 5 The Alarms Function 45 4 6 The Range Function 48 4 6 1 Setting the Analog Output Ranges 49 4 6 2 ...

Страница 13: ...A2G Teledyne Analytical Instruments x 5 5 Major Internal Components 55 5 6 Cleaning 56 5 7 Troubleshooting 56 Appendix 57 A 1 Specifications 57 A 2 Recommended 2 Year Spare Parts List 59 A 3 Drawing List 60 ...

Страница 14: ... Figure 2 3 Flow Diagram 11 Figure 2 4 Component Locations 13 Figure 2 5 Electronic Block Diagram 14 Figure 3 1 Model 3000ZA2G 15 Figure 3 2 Required Front Door Clearance 16 Figure 3 3 Model 3000ZA2G Rear Panel 16 Figure 3 4 Equipment Interface Connector Pin Arrangement 19 Figure 3 5 Remote Probe Connections 24 Figure 3 6 FET Series Resistance 25 Figure 5 1 Removing Fuse Block from Housing 54 Figu...

Страница 15: ...ut Connections 20 Table 3 2 Alarm Relay Contact Pins 21 Table 3 3 Remote Calibration Connections 22 Table 3 4 Range ID Relay Connections 23 Table 3 5 Commands via RS 232 Input 26 Table 3 6 Required RS 232 Options 26 Table 5 1 Self Test Result Display 55 Table 5 2 Troubleshooting 56 ...

Страница 16: ...ous environment 1 2 Typical Applications A few typical applications of the Model 3000ZA2G are Monitoring inert gas blanketing Air separation and liquefaction Chemical reaction monitoring Semiconductor manufacturing Petrochemical process control Quality assurance Gas analysis certification 1 3 Main Features of the Analyzer The Model 3000ZA2G Trace Oxygen Analyzer is sophisticated yet simple to use ...

Страница 17: ...specific range of interest Two adjustable concentration alarms and a system failure alarm Extensive self diagnostic testing at startup and on demand with continuous power supply monitoring CE compliance RS 232 serial digital port for use with a computer or other digital communication device A 0 1 VDC analog output for concentration plus a 0 1 VDC output for range identification Convenient and vers...

Страница 18: ...ated tasks described in detail in chapter 4 Operation Span Span calibrate the analyzer Zero Zero calibrate the analyzer Alarms Set the alarm setpoints and attributes Range Set up the 3 user definable ranges for the instrument Data Entry Keys Six touch sensitive membrane switches are used to input data to the instrument via the alphanumeric VFD display Left Right Arrows Select between functions cur...

Страница 19: ... give the operator immediate feedback Flowmeter Monitors the flow of gas past the sensor Readout is 0 1 to 0 5 standard liters per minute SLPM Reference Flowmeter Monitors the flow of reference gas past the sensor Readout is 0 1 to 0 5 standard liters per minute SLPM Note It is possible to use the analyzer without a flowing reference but doing so will incur a marginal degradation in performance Se...

Страница 20: ...e tool Accessing the main circuit board requires unfastening rear panel screws and sliding the unit out of the case 1 5 Rear Panel Equipment Interface The rear panel shown in Figure 1 2 contains the gas and electrical connectors for external inlets and outlets Some of those depicted are optional and may not appear on your instrument The connectors are described briefly here and in detail in Chapte...

Страница 21: ...llow external control of analyzer calibration Calibration Contact To notify external equipment that instrument is being calibrated and readings are not monitoring sample Range ID Contacts Four separate dedicated range relay contacts Low Medium High Cal Network I O Serial digital communications for local network access For future expansion Not currently implemented Optional Calibration Gas Ports Se...

Страница 22: ...The microprocessor controls all signal processing input output and display functions for the analyzer 2 2 ZrO2 Sensor The zirconium oxide ZrO2 sensor is a solid state sensor It is a voltage device with a logarithmic response The sensor 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 and contains a the...

Страница 23: ...en partial pressure electrode being positive When dry air at atmospheric pressure 21 oxygen is used as a reference gas at the inner electrode the following equations are obtained Transposing this equation The analyzer solves this equation which is valid above the minimum operating temperature The oxygen sensor assembly provides a means of exposing the zirconia sensor to the atmosphere to be measur...

Страница 24: ...gradation in performance For best performance a flowing reference should be used Figure 2 1 Sensor Offset Voltage The sensor assembly also provides the means of maintaining the sensor operating temperature by surrounding the sensor tube with a heater element and measuring the temperature of the zirconia disc with a thermocouple inside the sensor See Figure 2 2 The logarithmic output of the sensor ...

Страница 25: ...min Reference flow rate 100 200 ml min Maximum flow rate 500 ml min In addition the flow rate differential between the sample and reference flows must be less than 200 ml min The maximum pressure applied to the sensor cell is 5 psig 2 3 Sample System The sample system delivers gases to the ZrO2 sensor from the analyzer rear panel inlet Depending on the mode of operation either sample or calibratio...

Страница 26: ...entering the sensors Flammable gases such as methane alcohol and carbon monoxide may cause a measurement error They must be filtered from the sample gas before entering the cell Gases containing halogen atoms F Cl Br etc such as Freon must be filtered before entering the cell The sensor will be damaged by the decomposition of Freon Gases containing SOx H2S silicone vapor and adhesives must not ent...

Страница 27: ...rom the amplifier is sent to an 18 bit analog to digital converter controlled by the microprocessor The high operating temperature of the ZrO2 sensor is required for proper operation of the sensor The amplifier PCB contains a circuit that drives the heater embedded in the sensor The voltage across the heater rises slowly to avoid damaging the heater sensor assembly After a few minutes the sensor w...

Страница 28: ...Trace Oxygen Analyzer Operational Theory Teledyne Analytical Instruments 13 Figure 2 4 Component Locations ...

Страница 29: ...Operational Theory 3000ZA2G Teledyne Analytical Instruments 14 Figure 2 5 Electronic Block Diagram ...

Страница 30: ...tion Carefully unpack the analyzer and inspect it for damage Immediately report any damage to the shipping agent 3 2 Mounting the Analyzer The Model 3000ZA2G is for indoor use in a general purpose area It is NOT for hazardous environments of any type The standard model is designed for 19 rack mounting Figure 3 1 is an illustration of the 3000ZA2G Figure 3 1 Model 3000ZA2G All operator controls exc...

Страница 31: ...or to open in a 90 degree arc of radius 7 125 inches See Figure 3 2 Figure 3 2 Required Front Door Clearance 3 3 Rear Panel Connections Figure 3 3 shows the Model 3000ZA2G rear panel There are ports for gas power and equipment interface The Zero In and Span In ports are not included on the standard model but are available as options Figure 3 3 Model 3000ZA2G Rear Panel Ventilation Power Entry Modu...

Страница 32: ...ceptable as long as the pressure once established will keep the front panel flowmeter reading in the acceptable range Use the sample flow control valve on the front panel to adjust the flow rate to within the acceptable range of 0 1 0 3 SLPM See the recommended flow rates for sample flows given on page 10 If greater sample flow is required for improved response time install a bypass in the samplin...

Страница 33: ...curacy Both zero and span calibrations are required Air 20 9 O2 must be used for the zero gas For span gas requirements see Section 4 4 These gases must be supplied to the instrument at the same pressure and flow as the sample gas 3 3 3 Electrical Connections For safe connections no uninsulated wiring should be able to come in contact with fingers tools or clothing during normal operation CAUTION ...

Страница 34: ...e Equipment Interface Connector The arrangement is shown as seen when the viewer faces the rear panel of the analyzer The pin numbers for each input output function are given where each function is described in the paragraphs below Figure 3 4 Equipment Interface Connector Pin Arrangement Analog Outputs There are four DC output signal pins two pins per output For polarity see Table 3 1 The outputs ...

Страница 35: ...f three pins provides one set of Form C relay contacts Each relay has both normally open and normally closed contact connections The contact connections are shown in Table 3 2 They are capable of switching up to 3 amperes at 250 VAC into a resistive load The possible alarm configurations are as follows Threshold Alarm 1 Can be configured as high actuates when concentration is above threshold or lo...

Страница 36: ...shold Alarm 1 normally closed contact 28 Threshold Alarm 1 moving contact 46 Threshold Alarm 1 normally open contact 42 Threshold Alarm 2 normally closed contact 44 Threshold Alarm 2 moving contact 43 Threshold Alarm 2 normally open contact 36 System Alarm normally closed contact 20 System Alarm moving contact 37 System Alarm normally open contact Digital Remote Cal Inputs Accept 0 V off or 24 VDC...

Страница 37: ...tocol below Table 3 3 Remote Calibration Connections Pin Function 9 Remote Zero 11 Remote Zero 10 Remote Span 12 Remote Span 40 Cal Contact 41 Cal Contact Remote Calibration Protocol To properly time the Digital Remote Cal Inputs to the Model 3000ZA2G 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 b...

Страница 38: ...ZA2G automatically regulates the zero span and sample gas flow Range ID Relays There are four dedicated Range ID relay contacts The first three ranges are assigned to relays in ascending order Low range is assigned to Range 1 ID Medium range is assigned to Range 2 ID and High range is assigned to Range 3 ID Table 3 4 lists the pin connections Table 3 4 Range ID Relay Connections Pin Function 21 Ra...

Страница 39: ...e 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 If more current and or a different voltage is required use a relay power amplifier or other matching circuitry to provide the actual driving current In addition each individual line has a series FET with a nominal ON resistance of 5 ohms 9 ohms wors...

Страница 40: ...a standard 9 pin D connector The output data is status information in digital form updated every two seconds Status is reported in the following order The concentration in ppm or percent The range in use HI MED LO The span of the range 0 100 ppm 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 fe...

Страница 41: ... are required by the 3000ZA2G implementation Table 3 6 Required RS 232 Options Parameter Setting Baud 2400 Byte 8 bits Parity none Stop Bits 1 Message Interval 2 seconds 3 4 Testing the System Before applying power to the instrument Check the integrity and accuracy of the gas connections Make sure there are no leaks Check the integrity and accuracy of the electrical connections Make sure there are...

Страница 42: ...anges then choose auto ranging or select a fixed range of analysis as required Set alarm setpoints and modes of alarm operation latching failsafe etc Before you configure your 3000ZA2G these default values are in effect Ranges LO 10 ppm MED 100 ppm HI 1000 ppm Auto Ranging ON Alarm Relays Defeated 1000 ppm HI Not failsafe Not latching Zero Auto every 0 days at 0 hours Span Auto at 000008 00 ppm ev...

Страница 43: ...uttons The six function buttons on the analyzer are Analyze This is the normal operating mode The analyzer monitors the oxygen content of the sample displays the percent of oxygen and warns of any alarm conditions System The system function consists of six sub functions that regulate the internal operations of the analyzer Auto Cal setup Password assignment Self Test initiation Checking software v...

Страница 44: ...order as presented in this manual is appropriate for an initial setup Each of these functions is described in greater detail in the following procedures The VFD screen text that accompanies each operation is reproduced at the appropriate point in the procedure in a Monospaced type style Pushbutton names are printed in Italic type Figure 4 1 Hierarchy of Functions and Sub functions ...

Страница 45: ...r the instrument s 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 TAI by defa...

Страница 46: ...rst System menu will appear in the VFD display TRAK HLD Auto Cal PSWD Logout More TRAK HLD should be blinking To enter this system menu press the Enter key once Output Sttng TRACK Alarm Dly 10 min or Output Sttng HOLD Alarm Dly 10 min In the first line TRACK or HOLD should be blinking The operator can toggle between TRACK and HOLD with the keys When TRACK is selected the analog outputs 0 1 VDC and...

Страница 47: ...r decrease its value The minimum delay is 1 minute the maximum is 30 This preference is stored in non volatile memory so that it is recovered if power is removed from the instrument 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 r...

Страница 48: ... field Use arrows to set the OFF ON field to ON You can now turn these fields ON because there is a nonzero span interval defined 4 3 3 Password Protection If a password is assigned then setting the following system parameters can be done only after the password is entered Span and zero settings Alarm setpoints Analysis range definitions Switching between auto ranging and manual override Setting u...

Страница 49: ... More Use the arrow keys to scroll the blinking over to PSWD and press Enter to select the password function Either the default TAI password or AAAAA place holders for an existing password will appear on screen depending on whether or not a password has been previously installed T A I Enter PWD or A A A A A Enter PWD The screen prompts you to enter the current password If you are not using passwor...

Страница 50: ...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 When you are given the opportunity to change the password Change Password ENT Yes ESC No Press Enter to change the password either the default TAI or the previously assigned password or press Esca...

Страница 51: ...n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 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 A A A A A Retype PWD To Verify Wait a moment for the entry screen You will be given clearance to proceed A A A A A ENT TO Proceed Use the arrow keys to retype your password and press Enter when fin...

Страница 52: ...nctions 4 3 4 Logout The Logout function provides a convenient means of leaving the analyzer in a password protected mode without having to shut the instrument off By entering Logout you effectively log off the instrument leaving the system protected against use until the password is reentered To log out press the System button to enter the System function TRAK HLD Auto Cal PSWD Logout More Use th...

Страница 53: ...urned on but the test can also be run by the operator at will To initiate a self diagnostic test during operation Press the System button to start the System function TRAK HLD Auto Cal PSWD Logout More Use the arrow keys to blink More and then press Enter Version Self Test Use the arrow keys again to move the blinking to the Self Test function The screen will follow the running of the diagnostic W...

Страница 54: ...r output drifts below zero This situation may arise after the instrument has been zeroed as time progresses the sensor may drift below the zero calibration setpoint To show negative oxygen readings on the display Press the System key TRAK HLD Auto Cal PSWD Logout More Use the Right or Left arrow keys and select More Press Enter Version Self Test Show_Negative NO Use the arrow keys and select Show_...

Страница 55: ...d for use as a span gas The span gas used must have a concentration greater than 7 0 ppm oxygen When 70 90 of full scale is close to air concentration e g 0 25 range 0 1 1 0 O2 span gas is recommended Connect the calibration gases according to the instructions given in Section 3 4 1 Gas Connections observing all the prescribed precautions Shut off the gas pressure before connecting it to the analy...

Страница 56: ...ling Stop when AUTO appears blinking on the display Zero Settling AUTO ENT To Begin Press Enter to begin zeroing PPM Zero Slope ppm s The beginning zero level is shown in the upper left corner of the display As the zero reading settles the screen displays and updates information on Slope unless the Slope starts within the acceptable zero range and does not need to settle further Then and whenever ...

Страница 57: ...e front 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 Span calibration can also be performed in manual mode where the operator determines when the span concentration reading is acceptable and manually exi...

Страница 58: ...ify Use the arrow keys again to change the value of the selected digit When you have finished typing in the concentration of the span gas you are using press Enter to begin the Span calibration ppm Span Slope ppm s The beginning span value is shown in the upper left corner of the display As the span reading settles the screen displays and updates information on Slope Spanning automatically ends wh...

Страница 59: ...0 ENT Span UP Mod Press UP to permit modification Mod of span value Use the arrow keys to enter the oxygen concentration of the span gas you are using 209000 00 if you are using air The arrows choose the digit and the arrows choose the value of the digit 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 ...

Страница 60: ...ade value When this occurs the span will not be accepted The analyzer will return to the previous calibration values and trigger the System Alarm and display in the VFD Span Failed This message will be shown for five seconds and the instrument will return to the Analyze mode In the upper right hand corner of the VFD display FCAL will be shown This message flag will help the operator troubleshoot i...

Страница 61: ...ntration rises above the setpoint Setting an alarm as LOW triggers the alarm when the oxygen concentration falls below the setpoint Decide whether you want the alarms to be set as Both high high and high high alarms or One high and one low alarm or Both low low and low low alarms 2 Are either or both of the alarms to be configured as failsafe In failsafe mode the alarm relay de energizes in an ala...

Страница 62: ...at 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 AL 1 1000 ppm HI Dft N Fs N Ltch N Five parameters can be changed on this screen Value of the alarm setpoint AL 1 ppm 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 To define th...

Страница 63: ...onds 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 If the concentration falls to below 85 of full scale of the next lower range the instrument will switch to that range A corresponding shift in the DC percent of range output and in the range ID outputs will be no...

Страница 64: ...range 2 is set as 0 1 000 ppm range 3 cannot be set as 0 500 ppm since it is lower than range 2 Ranges alarms and spans are always set in ppm units over the entire 0 250 000 ppm range even though all concentration data outputs change from ppm units to percent when the concentration is above 10 000 ppm 4 6 2 Fixed Range Analysis The auto ranging mode of the instrument can be overridden forcing the ...

Страница 65: ...atically switch back to the Analyze function when they have completed their assigned operations Pressing the Escape button in many cases also switches the analyzer back to the Analyze function Alternatively you can press the Analyze button at any time to return to analyzing your sample 4 8 Signal Output The standard Model 3000ZA2G Trace Oxygen Analyzer is equipped with two 0 1 VDC analog output te...

Страница 66: ...tly 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 auto ranging mode To provide an indication of the range a second pair of analog output terminals is used They generate a steady preset voltage or current when using the current outputs to represent a particular...

Страница 67: ...Operation 3000ZA2G Teledyne Analytical Instruments 52 ...

Страница 68: ... 2 Sensor Replacement There are no user serviceable parts in the sensor assembly If the sensor has failed contact TAI for replacement CAUTION POWER IS APPLIED TO THE INSTRUMENT CIRCUITRY WHENEVER THE POWER ENTRY SWITCH ON THE REAR PANEL IS IN THE ON POSITION THE RED SWITCH ON THE FRONT PANEL IS FOR SWITCHING POWER ON OR OFF TO THE DISPLAYS AND OUTPUTS ONLY CAUTION THE SENSOR IS MAINTIANED AT A HIG...

Страница 69: ... in Figure 5 1 Figure 5 1 Removing Fuse Block from Housing 2 To change between American and European fuses remove the single retaining screw then flip the Fuse Block over 180 degrees Replace the screw 3 Replace fuse as shown in Figure 5 2 4 Reassemble housing as shown in Figure 5 1 American Fuses European Fuses Figure 5 2 Installing Fuses ...

Страница 70: ...this test it will be listed on the VFD display followed by a code number instead of OK 5 5 Major Internal Components The zirconium sensor assembly is accessed by removing the top cover of the analyzer The electronic PC boards are accessed by opening the door on the front panel The gas piping is illustrated in Figure 2 3 and the major electronic components locations are shown in Figure 2 4 in Chapt...

Страница 71: ...t panel as prescribed in the above paragraph DO NOT wipe front panel while the instrument is controlling your process 5 7 Troubleshooting Table 5 2 Troubleshooting Problem Possible Cause Solution Erratic readings of the oxygen concentration as reported by the analyzer Analyzer may have been calibrated in an inaccurate fashion Recalibrate analyzer making sure the proper gas is fed and the proper va...

Страница 72: ... at 25 C 77 F on 0 100 ppm to 0 25 ranges 30 seconds on 0 10 ppm range Ranges Three programmable ranges from 0 10 ppm to 0 25 oxygen Auto ranging with range ID output Alarms One system failure alarm contact to detect power failure Two adjustable concentration threshold alarm contacts with fully programmable setpoints Displays 2 line by 20 character VFD screen and one 5 digit LED display Digital In...

Страница 73: ...tical Instruments 58 Operating Temperature 5 35 C Accuracy 2 of full scale at constant temperature at calibrated range 5 of full scale over operating temperature range once thermal equilibrium is reached Repeatability 1 of full scale ...

Страница 74: ... 5x20mm Slow Blow 1 A68314 Back Panel Connector Kit 1 B89410B Heater Controller Board 1 S1816 Zirconium oxide sensor 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 91748 Phone 626 934 150...

Страница 75: ...Appendix 3000ZA2G Teledyne Analytical Instruments 60 A 3 Drawing List D 89402 Outline Diagram B 86694 Piping Diagram ...

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Страница 77: ...Use and Disclosure of Data Information contained herein is classified as EAR99 under the U S Export Administration Regulations Export reexport or diversion contrary to U S law is prohibited ...

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Страница 79: ...Use and Disclosure of Data Information contained herein is classified as EAR99 under the U S Export Administration Regulations Export reexport or diversion contrary to U S law is prohibited ...

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