Servomex NanoTrace DF-760E Instruction Manual Download Page 110 | Manualshive

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106 DF-760E

User Interface

7.7.4 Gas Delivery

Figure 117: Gas Delivery

The Gas Delivery screen allows for monitoring of the gas delivery system valves. An ‘X’
indicates that the valve is closed. This screen is for display purposes only and allows no
user interaction.

Figure 118: Gas Delivery System Status

7.7.4.1 Back Flow Prevention System

The Back Flow Prevention System provides a means of eliminating the possibility of
contamination of the plumbing system when gas flow is lost or accidentally shut off.
Under this condition ambient air may be drawn in to the system through the bypass exhaust
by means of the aspirator or vacuum pump.

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Summary of Contents for NanoTrace DF-760E

Page 1: ...NanoTrace Dual Moisture Oxygen Analyzer DF 760E Instruction Manual...

Page 2: ...itted in any form or by any means including electronic mechanical photocopying recording or otherwise without prior written permission of Servomex Corporation NanoTrace Moisture Analyzer is a trademar...

Page 3: ...libration assures your analyzer has been calibrated on gases that are traceable to NIST standards With proper maintenance your analyzer should remain calibrated for years For a fast and successful sta...

Page 4: ......

Page 5: ...NOTE No power cord is supplied with 220 VAC units 211531 USB Memory Stick Flash Drive SONY USM512J 211169 VCR Filter Gasket 210432 Aspirator 210566 Zero Gas Purifier 210592 Instruction Manual 211591 4...

Page 6: ...sed as designed and intended Unlike much UHP analytical equipment NanoTrace Dual Analyzer does not require constant maintenance However the maintenance intervals for zero and span calibrations as well...

Page 7: ...ety System 27 4 2 Analyzer Start Up 28 4 2 1 Gas Delivery System 29 4 2 2 Gas Pressure and Flow Settings 29 4 2 3 Moisture 30 4 2 4 Oxygen 31 4 2 5 Backflow Prevention System 31 4 2 6 Purifier Install...

Page 8: ...ate Analyzer 102 7 7 2 Restore Sample Gas Flow 103 7 7 3 GSF Setup 103 7 7 4 Gas Delivery 106 7 7 5 Adjust Contrast 108 7 7 6 Power Up Default 109 7 7 7 Test Relays 110 7 7 8 Test Analog Outputs 111 7...

Page 9: ...Oxygen Measurement 141 10 1 1 The Oxygen Sensor 141 10 1 2 The Oxygen Electrolyte Conditioning System 141 10 2 The Moisture Measurement 142 10 2 1 Moisture and the IR Spectrum 142 10 2 2 Absorption Sp...

Page 10: ...Manual Zero Screen 52 Figure 26 Moisture AutoZero Screen 53 Figure 27 Moisture AutoZero Setup Screen 54 Figure 28 Moisture Data History 55 Figure 29 Moisture Data History Screen 56 Figure 30 Install...

Page 11: ...gure 83 Oxygen Data Downloader Menu 88 Figure 84 Oxygen Data Downloader Screen 89 Figure 85 View Location Screen 89 Figure 86 Keyboard Display 90 Figure 87 Delete Selection 90 Figure 88 View Oxygen Lo...

Page 12: ...igure 128 Test Analog Outputs Menu 111 Figure 129 Test Moisture Analog Output 112 Figure 130 Test Oxygen Analog Output 112 Figure 131 Date Time 113 Figure 132 Date Time Setup Screen 113 Figure 133 Com...

Page 13: ...u manuel affichant ce symbole NOTE REMARQUE This symbol alerts the user to the presence of important operations and or maintenance information Ce symbole attire l attention de l utilisateur sur des re...

Page 14: ...RDOUS AC ATTENTION TENSION DANGEREUSE Hazardous AC voltages are present within this instrument Do not remove the top or left side covers no user serviceable parts are located under the covers Do not c...

Page 15: ...nt les sp cifications sont inappropri es moins de 120 V ca 10 amp res ou sans fil de mise la terre de protection CAUTION 220 VAC POWER CORD ATTENTION LE CORDON D ALIMENTATION DE 220 V CA A 220 VAC pow...

Page 16: ...ure your back is straight Grip the instrument with your fingers and palms and do not lift unless your back is straight Lift up with your legs not your back Carry the instrument close to your body Lowe...

Page 17: ...ctrolyte is a caustic solution Review the Material Safety Data Sheet MSDS located in the Safety section of this manual before handling the electrolyte solution The oxygen sensor is shipped dry and mus...

Page 18: ...ntended for use with the toxic gas HCl The DF 745SG approved gas list is ever expanding but it includes N2 O2 H2 He Ar CO2 CO SF6 Ne Kr Xe and N2O Check your order paperwork to determine whether your...

Page 19: ...t combustibles respecter les pr cautions d installation et de fonctionnement particuli res suivantes 1 S assurer de conna tre la composition de l chantillon gazeux et les exigences pour manipuler en t...

Page 20: ...de gaz CAUTION TRIPPING HAZARD ATTENTION RISQUE DE TR BUCHEMENT Route the power cord and plumbing so that they cannot be stepped on or tripped over Acheminer le cordon d alimentation et la tuyauterie...

Page 21: ...spheric vent recommended 3 2 Moisture Lowest Detection Level LDL 200 ppt Constant Conditions Resolution Analytical Smallest Detectable Change 100 ppt Display 10 ppt Accuracy Greater of 3 of reading or...

Page 22: ...Rate 2 5 slpm N2 Inlet Pressure 30 to 150 psig 2 to 10 barg Sample Temperature 10 C to 80 C 50 F to 176 F Gas Inlet Oxygen Span Inlet Pressure 10 to 15 psig 0 7 to 1 0 barg Gas Inlet Pneumatic Gas N2...

Page 23: ...four Moisture levels Temperature Electrolyte Condition Moisture cell Diagnostic Loss of Flow Zero Verification or Calibration in Process Moisture Analyzer off line Oxygen Analyzer analog output freez...

Page 24: ...RLY7 COM 8 GND 8 6 7 6 7 RLY8 NC RLY8 NO RLY8 COM RLY7 NC RLY7 NO RX TX 3 2 1 4 20mA 4 20mA 3 3 1 2 1 2 4 20mA 4 20mA TX GND RX KEY 7 8 5 4 6 AOUT GND KEY AOUT 8 7 6 4 5 KEY GND 8 7 6 4 5 AOUT AOUT 1...

Page 25: ...he following steps be followed Mounting the analyzer Filling the Oxygen sensor with electrolyte Connecting the N2 Air supply to the aspirator Connecting an exhaust tube to the aspirator outlet if need...

Page 26: ...in a background gas of pure Oxygen it is imperative that the Oxygen analyzer not be exposed to the process gas The Oxygen analyzer is not designed for use in a pure O2 background 4 1 2 Carrying the A...

Page 27: ...old cap from the top 3 Pour one full bottle 100 mL of Servomex E Lectrolyte Gold into the sensor 4 Replace the cap securely on the top of the sensor 5 Allow the sensor to sit for 60 minutes before con...

Page 28: ...he gas at the sample vent port is comprised of the analyzer sample gas and the compressed gas and any noise can be mitigated by simply installing a inch tube of approximately 3 ft in length Backpressu...

Page 29: ...page 109 for additional information NOTE When received from the factory the oxygen sensor and moisture cell will both be isolated with pressure in the system See the sections on Moisture and Oxygen Ga...

Page 30: ...l and local electrical codes Avoid damaging the power cord Do not bend it excessively step on it or place heavy objects on it A damaged cord can be a shock or fire hazard Never use a power cord if it...

Page 31: ...ions as detailed in the Operating Instruction Manual The instrument chassis and the remote pump if equipped are both protected by maintaining a safe condition within their respective enclosures If ins...

Page 32: ...oximately six to nine minutes after which the display will look similar to Figure 6 values shown are only representative It is important to note that the ultimate warm up time may take as much as 90 m...

Page 33: ...rocess inlet to the moisture analyzer as well as the zero gas inlet are heated to 60 C This is done to mitigate any effects of adsorption desorption of trace moisture on the walls of the tubing NOTE A...

Page 34: ...te For light gases hydrogen and helium the flow indication for the oxygen sensor will be adjusted automatically by approximately 0 3 to compensate for the lighter gas As a result the flow rate through...

Page 35: ...ess than 5 minutes for the analyzer to come on scale 20ppm The concentration of oxygen is automatically shown in parts per million ppm or parts per billion ppb on the display See the section on Power...

Page 36: ...d isolation process and computer shut down which takes approximately 40 seconds Long Term Shut Down From the Main Menu go to System and select Isolate Analyzer A routine automatically starts that clos...

Page 37: ...O2 REGULATOR ADJUSTMENT MOISTURE SENSOR OUTLET PROCESS INLET OXYGEN SPAN INLET OXYGEN AND BYPASS OUTLET BYPASS FLOWMETER BYPASS FLOW ADJUST ASPIRATOR WITH BUILT IN VACUUM CONTROL NEEDLE VALVE REAR PAN...

Page 38: ......

Page 39: ...ation 5 4 Analog Voltage Output The maximum analog voltage output can be set at the factory to 0 1 0 2 0 5 or 0 10 Volts DC The maximum analog voltage output is not adjustable in the field See page 42...

Page 40: ...electrical power connection to the vacuum pump 5 6 1 1 Vacuum Pump Mounting Mount the vacuum pump within 8 feet of the analyzer Refer to Figure 9 and Figure 10 for mounting hole and pump dimensions C...

Page 41: ...5 17 131 32 4 92 124 97 28 7 14 4 PL MOUNTING FOR REAR OF BRACKET 28 7 14 4 PL MOUNTING FOR LEFT OR RIGHT SIDE OF BRACKET 3 94 100 08 2 PL 3 94 100 08 2 PL 4 92 124 97 6 89 175 01 3 94 100 08 8 54 216...

Page 42: ...tacle The pump will not turn on until the main analyzer power switch is turned on See Figure 11 NOTE The voltage supplied at the vacuum pump power connector is the same as the input voltage to the ana...

Page 43: ...O2 REGULATOR ADJUSTMENT MOISTURE SENSOR OUTLET PROCESS INLET OXYGEN SPAN INLET OXYGEN AND BYPASS OUTLET BYPASS FLOWMETER BYPASS FLOW ADJUST VACUUM CONTROL NEEDLE VALVE SUPPLIED LOOSE EXTERNAL VACUUM P...

Page 44: ......

Page 45: ...an artificial 0 011ppb reading to avoid the reporting of false readings Figure 13 Rear Panel Electrical Connectors 6 1 Serial Communication Port J5 Either of two serial communication ports are availa...

Page 46: ...isplay readings are provided on the rear of the analyzer The analog voltage output for the oxygen signal is provided through connector J10 The analog voltage output for the moisture signal is provided...

Page 47: ...Output Connector J10 6 4 Relay Ports J2 J3 J8 J9 Eight form C SPDT relays contact closures are provided to assign to the various alarms The contacts are rated at 30 VDC 1A resistive load They are not...

Page 48: ...Relay 3 Normally Open J9 2 Key Unused J9 1 RLY3 COM Relay 3 Common Table 6 Pin Out of Moisture Relay Connectors J8 and J9 Pin Oxygen Relay Description J2 8 GND Ground J2 7 RLY6 NC Relay 6 Normally Cl...

Page 49: ...d OK denotes no alarm conditions if enabled The Data Line providing the most recent concentration measurement in the large number displays This box will also provide indication of abnormal operating c...

Page 50: ...o enable the entry of numerical parameters as will be described below The Enter key will call up dialogue boxes from the menu denoted by the sequence next to the menu text It will also enter numerical...

Page 51: ...e highlighted item with the Enter key on the front panel Figure 17 Moisture SubMenu 7 5 1 Moisture Controls Menu Figure 18 Moisture Controls SubMenu The Moisture Controls menu provides access to one i...

Page 52: ...conditions the pressure alarm is disabled 7 5 1 2 Gas Valves Control The moisture gas valves control screen as shown in Figure 20 is used to control the flow of gas through the moisture cell In additi...

Page 53: ...ts using the wavelength modulation technique instrumental drift has minimal effect on the quantitative moisture content result Once operating parameters are in place from the factory no other SPAN cal...

Page 54: ...is another offset feature When this feature is turned on the User Zero Offset display is inactive and Active Zero Offset will be displayed instead See page 67 for additional information on the Active...

Page 55: ...g no changes and return to the main display 7 5 2 1 2 Set Zero Gas Valves Figure 24 Moisture Set Zero Gas Valves Screen The state of the Zero Gas Control Valves can be toggled on or off from this scre...

Page 56: ...ture reading See Figure 25 Observe the trace until the reading is stable and then press Enter This action will accept the present value as the new zero setting for the moisture cell and the Zero Refer...

Page 57: ...hrough the purifier to purge the plumbing for that amount of time Once the pre purge is complete the twenty minute autozero cycle begins During this twenty minute cycle the analyzer applies stability...

Page 58: ...reen is accepted the autozero process will start immediately Use the Esc key to escape from the screen without starting an autozero process Setting a time and date for the Next AutoZero is accomplishe...

Page 59: ...least time 17 minute delay and as a result is the least precise The Normal selection applies an average of the two 34 minute delay A relay is available on the Moisture Analog Output Setup Screen see...

Page 60: ...5 16 03 1 26 PM 5 421 5 16 03 1 27 PM 5 416 5 16 03 1 28 PM 5 411 5 16 03 1 29 PM 5 406 Figure 31 Example of Data Download The downloaded file will be in tab delimited form and will include all moist...

Page 61: ...Downloader Screen 7 5 4 1 Set Location The set location function is used to choose a location from a list of existing locations previously entered into the system see Add Location on page 58 On the M...

Page 62: ...ove to View Location and press Enter The data history screen will appear as shown in Figure 29 From the data history screen the data may also be downloaded to a USB memory stick by way of the remote U...

Page 63: ...e Selection 7 5 5 View Moisture Logs Menu View Logs allows the user to easily access past events that may be connected with past operational changes e g zero or instrument upsets Use the arrow keys an...

Page 64: ...ee page 64 for additional information on setting System Alarms NOTE The 30 minute clock is delayed for 60 minutes on a cold system start up Figure 39 System Error Log Screen Following is a list of Sys...

Page 65: ...the process gas See page 70 for additional information on the pump test As the last step of the test the system automatically puts an entry in the pump capacity test log for future reference See Revi...

Page 66: ...d its number or letter will appear in the Alarm Status line above the display See page 45 This action will not clear the alarm Only restoration of the condition that existed prior to the alarm will cl...

Page 67: ...e alarm to one of four relays Use the Next key to move from between fields and use the arrow keys and to change the highlighted selections and to enter numerical values When done use the Next key to m...

Page 68: ...ds and use the arrow keys and to change the highlighted selections and to enter numerical values When done use the Next key to move to the Accept button and hit the Enter key to return to the main dis...

Page 69: ...at is sent The Full Scale set point FS is set from 0 002 ppm to 20 00 ppm Three ranges can be entered in this screen The range of the Primary Full Scale FS must be less than that of the Expanded Full...

Page 70: ...main data display of the analyzer A specific time interval in minutes can be chosen for the X axis on that display The minimum acceptable time is 3 minutes The information on the graph represents cur...

Page 71: ...display and output to compensate for the long term downward trending in the readings during cleanup The Active Zero Offset provides an automatic addition of offset that occurs in miniscule steps and...

Page 72: ...next user calibration is performed resetting the Active Zero Offset value to zero If the Active Zero Offset feature is turned off the User Zero Offset value will appear in its place in the CHECK ADJU...

Page 73: ...Purifier from the Diagnostics screen and Figure 53 will appear Use the Next key to toggle OK and when ready press Enter and Figure 54 will appear Figure 53 Purge Start Figure 54 Purifier Purge Time L...

Page 74: ...t once started the analyzer isolates the moisture cell by closing the upstream and downstream valves and then the vacuum is monitored for 20 seconds and is displayed on the screen Any pressure lower t...

Page 75: ...n Menu The Oxygen SubMenu relates to the operation of the oxygen sensor without affecting moisture cell operation Use the arrow keys and to navigate up and down through the list Select the highlighted...

Page 76: ...ocess lines Restoring process gas flow will open the upstream and downstream valves of the oxygen sensor to allow for gas flow from the sample inlet for normal operation Restoring zero gas flow will d...

Page 77: ...there is a non zero entry in the GSF setup screen for O2 then the polarization voltage to the O2 sensor is automatically turned off and the O2 sensor is automatically isolated from gas flow An alarm...

Page 78: ...lish temporary performance near 0 0 ppb during the dry down process Monitoring the zero reference number during that time or repeated restoration of the factory zero will give the user a sense of the...

Page 79: ...easurement mode See page 76 A relay is available on the Oxygen Output Setup Screen see page 97 to signal that a span or zero calibration is taking place and the analog output signal can also be frozen...

Page 80: ...Open or Close valves Highlight Close and hit Enter Zero Gas Flowing will then disappear appear from the bottom of the main display Pressing ESC during the calibration process will abort the action Wh...

Page 81: ...ires In the latter case the analyzer returns to operation on sample gas with no adjustment to the zero calibration and reports a failed zero calibration See the section on AutoZero Setup below for a d...

Page 82: ...utoZero is automatically aborted and the Fail Zero flag is set in the Zero Cal Log as shown in Figure 89 The system provides warning of a scheduled AutoZero before the calibration takes place per the...

Page 83: ...00 If the value is outside this range contact Servomex Attach a span cylinder to the oxygen span inlet fitting on the rear of the analyzer and supply 10 15 psig 0 7 1 0 barg Use the NEXT key to toggle...

Page 84: ...nitiating a manual calibration it may take up to five minutes before convergence occurs and the 60 second time bar begins to move During convergence the analyzer is verifying stability of the reading...

Page 85: ...ttached to the oxygen span inlet on the rear of the analyzer the gas value is entered in the Check Adj Span screen as shown on page 79 Similarly the Span GSF value if needed is entered in the Span GSF...

Page 86: ...ically calculated based on the current AutoSpan Interval setting AutoSpan Timeout Warning The timeout allows a time for stabilization If the required stable period is not achieved the AutoSpan is auto...

Page 87: ...ecting Normal will yield a faster response but a noisier signal Units are shipped from the factory with the setting at Low LDL which provides a useful trade off of noise with respect to response for m...

Page 88: ...st performance at initial start or anytime the electrolyte is changed it is important to allow the sensor to sit with electrolyte in it for 60 minutes before the gas is allowed to flow through the sen...

Page 89: ...best performance at initial start or anytime the electrolyte is changed it is important to allow the sensor to sit with electrolyte in it for 60 minutes before the gas is allowed to flow through the s...

Page 90: ...he criteria as set on the Replenish Sol n Reminder Setup screen below 7 6 3 2 Replenish Sol n Reminder Setup The Add Replenishment Solution reminder can be turned on or off and a time period in weeks...

Page 91: ...the Data History Screen is also accessed from the Data Downloader screen Figure 84 The Next button can be used to toggle the X axis scale from 1 day default to 1 hour to 1 week or to 3 weeks Figure 8...

Page 92: ...nce the download is complete control of the analyzer will be returned to the operator See Figure 31 for an example of a portion of a download taken between the dates of May 1 and May 22 The complete f...

Page 93: ...Location and press Enter to accept the new location The action of setting a location starts the logging process and creates a new file Changing to a new location will in turn end the previous file and...

Page 94: ...n error is made use the Next key to move to the Clear Entry key and hit enter When the location name is complete use the Next key to move the highlight to Accept New Location and hit Enter The display...

Page 95: ...ts made to the oxygen sensor zero setting The date and time of the zero calibration is noted The zero is listed in the notes section as either Manual or Automatic The letters Q N and S in the notes se...

Page 96: ...6 2 View Oxygen Span Log Figure 90 Oxygen Span Log 7 6 6 3 View Oxygen Replenishment Sol n Addition Log Figure 91 Oxygen Replenishment Sol n Addition Log 7 6 6 4 View Oxygen OverRange Sensor Off Log F...

Page 97: ...alarms all relate to the operation of the oxygen sensor In addition an alarm can be programmed to indicate whether the oxygen sensor has been turned off either manually or automatically NOTE When any...

Page 98: ...e Level 2 3 Moisture Level 3 4 Moisture Level 4 5 Oxygen Level 1 6 Oxygen Level 2 7 Oxygen Level 3 8 Oxygen Level 4 T Temperature P Pressure S System Table 9 Alarm Codes 7 6 7 1 Oxygen Alarm Setup The...

Page 99: ...nd to change the highlighted selections and to enter numerical values When done use the Next key to move to the Accept button and hit the Enter key to return to the main display Using the ESC key at a...

Page 100: ...arm alerts the user to those fault conditions that may impact the quality of the oxygen measurement Fault conditions include low electrolyte level add Servomex Replenishment Solution or electrolyte co...

Page 101: ...s and use the arrow keys and to change the highlighted selections and to enter numerical values When done use the Next key to move to the Accept button and hit the Enter key to return to the main disp...

Page 102: ...e analyzer s decades can be set for the full scale analog output Figure 101 Output SetUp Screen The In Calibration Relay can be enabled to signal that a zero or span calibration is in process In addit...

Page 103: ...05 Oxygen Sensor Diagnostics Screen This SubRoutine contains read only parameters It assists the user in allowing determination of the three parameters electrolyte level oxygen cell temperature and ga...

Page 104: ...Setting for different compensation between 0 and 19 If the analyzer reading increases with temperature under compensation then increase the set point closer to 19 If the analyzer reading decreases wi...

Page 105: ...gned to operate when the zero baseline is falling at a rate less than 0 1 ppb hr as would be the case after 1 2 weeks of initial operation If user calibrations are performed sooner the O2 readings may...

Page 106: ...he isolate sensor functions in the Moisture and Oxygen SubMenus After selecting this command the isolation process takes 40 seconds to complete and the warning in Figure 110 appears on the screen When...

Page 107: ...at the time of isolation to avoid back diffusion of ambient air from the outlet into the cell 7 7 3 GSF Setup The GSF setup Gas Scale Factor is critical for obtaining quantitatively correct results I...

Page 108: ...essure Alarm Screen Figure 114 Moisture GSF Pressure Setting See page 63 for additional information on setting the Pressure Alarm The O2 GSF may be calculated or entered directly It is advisable that...

Page 109: ...ntage of Hydrogen in the GSF calculation will automatically engage the Hydrogen Safety Service System option if equipped See page 173 for additional information 7 7 3 1 Fan Failure The analyzer consta...

Page 110: ...purposes only and allows no user interaction Figure 118 Gas Delivery System Status 7 7 4 1 Back Flow Prevention System The Back Flow Prevention System provides a means of eliminating the possibility o...

Page 111: ...t valid The user must determine the cause of the loss of gas flow and remedy the situation When flow has been restored to the analyzer the pressure reading will go to a non zero value and a message wi...

Page 112: ...tem alarms 7 7 5 Adjust Contrast The Adjust Contrast screen enables the user to modify the contrast of the front display screen From the System menu select Adjust Contrast Use the up and down arrows a...

Page 113: ...ey to move from field to field Use the up and down arrows and to move between the selections within the field When done use the NEXT key to move to the Accept field and hit the Enter key Pressing the...

Page 114: ...ions The NEXT key is then used to move to the Apply field where the Enter key is hit to change the relay state This process can be repeated as often as needed When done the NEXT key is used to move to...

Page 115: ...ports found on page 43 for additional information Figure 127 Test Oxygen Relay 7 7 8 Test Analog Outputs Figure 128 Test Analog Outputs Menu 7 7 8 1 Test Moisture Analog Output The Test Output screen...

Page 116: ...move to the percentage field where the arrow keys and are used to choose the appropriate setting The NEXT key is then used to move to the Apply field where the Enter key is hit to set the analog outp...

Page 117: ...nd the arrow keys and are used to change the various numerical digits and units When in the Time Zone field the left and right arrow keys toggle through the various options When done the Next key is u...

Page 118: ...en done the Next key is used to move to the Accept field and the Enter key is hit See page 41 for additional information 7 7 11 Download System Data In the event that problems develop with the analyze...

Page 119: ...activity at a specific time other than the last 10 days To change the date use the Next key to move between fields and use the arrow keys and Hit Enter and the download process will begin and a time...

Page 120: ...be used to forward the information to Delta F for evaluation 7 7 12 System Info The System Info screen gives the user information regarding the configuration of the analyzer as well as the version of...

Page 121: ...Firmware Upgrade Place the memory stick Flash Drive in the external USB port located behind the front door next to the oxygen sensor When ready hit the Yes Proceed key and follow the instructions At t...

Page 122: ......

Page 123: ...a given background gas within this range The pressure can be adjusted by balancing the inlet regulator setting with the throttling valve in the aspirator or if equipped with the needle valve in the v...

Page 124: ...d be virtually constant for readings between 0 1 and 0 3 slpm Therefore if O2 readings become higher at lower flows then ambient O2 is leaking into the sample system or venting from a dead space close...

Page 125: ...at the equation may be only 85 90 percent accurate In addition there is further error introduced when correcting for a multi component background gas This may result in up to an additional 3 5 percent...

Page 126: ...phere it is also suggested to install a fairly high resolution pressure gauge immediately at the analyzer outlet 8 4 5 Flammable Sample Gas There is nothing within the analyzer sample system that can...

Page 127: ...e gases Automatically controlled solenoid valves should be installed to switch the analyzer over to an N2 purge when the process reaches some identifiable condition Gas line maintenance operations mus...

Page 128: ......

Page 129: ...so read the cautions and manual instructions that are included in the section that covers the specific maintenance operation CAUTION RETURNING THE ANALYZER TO SERVICE Following maintenance ensure that...

Page 130: ...alyzer requires periodic zero checks and possibly adjustments to ensure accuracy For applications where the process is continuously monitored the zero check frequency guidelines in the table below sho...

Page 131: ...nal solution Typically bone dry sample gas can extract approximately 10 to 20 cc of water per month The electrolyte level should be checked every 1 to 2 months If the electrolyte level is low add Serv...

Page 132: ...riate maintenance interval A good working pump will pull down to approximately 120 torr or less when the moisture cell is isolated But when pump performance degrades to the point that proper pressure...

Page 133: ...cation test lets you know if breakthrough is occurring and that the purifier needs to be replaced 1 Establish a stable oxygen reading by diverting the low ppb process gas through the gas purifier at a...

Page 134: ...lumbing system allowing gas to escape from the lower plug 7 If replacing a spent purifier remove the purifier allowing gas to escape from the lower fitting 8 Remove both VCR type cap nuts from the new...

Page 135: ...ts or their retainers Figure 142 Gas Purifier Installation 9 3 8 Fuse Replacement CAUTION HAZARDOUS AC Before replacing fuses turn off the analyzer power switch and allow the analyzer to shut down nor...

Page 136: ...ot use a power cord without a protective earth wire Do not use a power cord with inadequate ratings less than 120 VAC 10 Amps for 110 VAC or less than 240 VAC 10 Amps for 220 VAC CAUTION HAZARDOUS AC...

Page 137: ...210515 Replenishment Solution 211278 Vacuum Pump 110 VAC 210606 Vacuum Pump 240VAC 210588 Vacuum Pump Rebuild Kit 211284 Vacuum control needle valve 210592 Purifier Black Label 210933 Gas Panel Ass y...

Page 138: ......

Page 139: ...V S I Span reading is unacceptably low 50 low T S I H Unacceptably Slow Speed of Response L G H I Analyzer indicates high temperature AB I 9 5 1 2 Key A Add Delta F Replenishment Solution if level is...

Page 140: ...und gas is properly accounted for using SPAN GSF in the menu T Check the accuracy and age of the calibration reference cylinder V Perform a low flow leak test while the span gas cylinder is connected...

Page 141: ...elow remove the oxygen sensor and drain the electrolyte a Using 5 8 and 7 8 inch open wrenches very carefully disconnect the gas inlet b Using two 7 16 inch open wrenches very carefully disconnect the...

Page 142: ......

Page 143: ...Service DF 760E 139...

Page 144: ...140 DF 760E...

Page 145: ...otassium hydroxide KOH which assists in the migration of hydroxyl ions OH to the anode where they are oxidized to complete the reaction A voltage of approximately 1 3 VDC applied to the sensor electro...

Page 146: ...n method IR absorption is but a subset of the overall field of spectroscopy which measures the interaction of light and matter The basis of absorption spectroscopy is when an electromagnetic wave i e...

Page 147: ...embodiment a solution with a broad absorbance band is dialed to a wavelength within the band where a substances molar absorptivity is known and the concentration of that substance is determined The s...

Page 148: ......

Page 149: ...draining electrolyte CAUTION Do not setup or operate the Analyzer without a complete understanding of the instructions in this manual Do not connect this Analyzer to a power source until all signal a...

Page 150: ...OROUGHLY DRAIN AND RINSE SENSOR BEFORE SHIPPING EMI DISCLAIMER This Analyzer generates and uses small amounts of radio frequency energy There is no guarantee that interference to radio or television s...

Page 151: ...eactivity 1 Persistence 0 NFPA Ratings scale 0 4 Health 3 Fire 0 Reactivity 1 Potential Health Effects Eye Contact Causes severe eye burns May cause irreversible eye injury Contact may cause ulceratio...

Page 152: ...Media Not Combustible Select extinguishing media appropriate to the surrounding fire conditions Protective Equipment Wear appropriate protective clothing to prevent contact with skin and eyes Wear a...

Page 153: ...pplicable 1 15 16 1 mm Hg 200 C 10 Stability Reactivity Chemical Stability Stable Conditions Materials to Avoid Incompatible materials acids and metals Incompatibilities with other Materials Reacts wi...

Page 154: ...ion Shipping Name Hazard Class UN Number Packaging Group US DOT Potassium Hydroxide Solution 8 UN1814 II IATA Potassium Hydroxide Solution 8 UN1814 II ADR RID Potassium Hydroxide Solution 8 UN1814 II...

Page 155: ...ls are listed European International Regulations European Labeling in Accordance with EC Directives Classification Corrosive Hazard Symbol C EC Number 215 181 3 Risk Phrases R35 Causes severe burns R2...

Page 156: ...available to us However we make no warranty of merchantability or any other warranty express or implied with respect to such information Liability is expressly disclaimed for loss or injury arising ou...

Page 157: ...5 Water contains trace salts 215 181 3 C 100 3 HAZARDS IDENTIFICATION Main Hazard None CERCLA Ratings scale 0 3 Health 0 Fire 0 Reactivity 1 Persistence 0 NFPA Ratings scale 0 4 Health 0 Fire 0 Reacti...

Page 158: ...NTROLS PERSONAL PROTECTION Personal Protection Eyes None required Skin None required Clothing Not applicable Respirators Not Applicable Airborne Exposure Exposure Limits Not applicable Not applicable...

Page 159: ...h federal state and local requirements 14 Transportation Information Not regulated 15 Regulatory Information 16 Other Information NFPA Ratings Health 0 Flammability 0 Reactivity 0 MSDS Creation Date 0...

Page 160: ...level of exposure Causes eye skin and respiratory tract irritation May cause allergic skin and respiratory reaction Harmful if swallowed May cause gastrointestinal irritation headache nausea vomiting...

Page 161: ...arise from inhalation ingestion and or contact with the skin and or eyes Eye Contact Immediately flush eyes with plenty of water for at least 15min Call a physician Skin Contact Immediately wash skin...

Page 162: ...ash thoroughly after handling media Keep container closed Avoid breathing dust Keep away from sunlight heat or fire Store in cool dry location away from incompatible materials SECTION 8 EXPOSURE CONTR...

Page 163: ...40 02 0 Nickel Oxide 10 30 50mg kg Mouse Not Available CAS NO 1313 99 1 subcutaneous Silica Amorphous 10 20 3160mg kg Rat Not Available CAS NO 7631 86 9 Oral Magnesium Oxide 10 20 Not Available Not Av...

Page 164: ...th an ozone depleting substance subject to the labeling requirements of the Clean Air Act Amendments 1990 and 40 CFR Part 82 VOLATILE ORGANIC COMPOUNDS VOC None US STATE REGULATIONS CALIFORNIA The Sta...

Page 165: ...61 All information within this document is believed to be accurate and current Aeronex does not guarantee the information to be all inclusive and shall not be held accountable for any damage caused fr...

Page 166: ......

Page 167: ...no event shall the Seller be liable for consequential damages NO PRODUCT IS WARRANTED AS BEING FIT FOR A PARTICULAR PURPOSE AND THERE IS NO WARRANTY OF MERCHANTABILITY Additionally this warranty appl...

Page 168: ......

Page 169: ...cting to 4 20mA Outputs 42 Analog Signal Outputs 42 Relay Ports 43 Serial Communications 41 External Devices Connecting to 41 F Fan Failure 105 Fan Failure Alarm 105 Flow Sensitivity Test 120 G Gas De...

Page 170: ...ound Gas Effects 121 Backpressure Effects 122 Flow Rate Effects Sensor Performance 120 Moisture Sample Flow Rate and Pressure 119 Oxygen Flow Rate Effects Leakage Checks 120 Oxygen Sample Flow Rate an...

Page 171: ...DF 760E 167...

Page 172: ...ser Menu Screens 14 Appendix A User Menu Screens Following are depictions of the User Interface Menus divided into three sections Moisture Oxygen and System 14 1 Moisture Menus Page 47 Page 49 Page 55...

Page 173: ...Appendix A User Menu Screens DF 760E 169 Page 65 Page 66 Page 67 14 2 Oxygen Menus Page 72 Page 74 Page 86 Page 87...

Page 174: ...170 DF 760E Appendix A User Menu Screens Page 88 Page 91 Page 93 Page 97 Page 98 Page 99...

Page 175: ...Appendix A User Menu Screens DF 760E 171 14 3 System Menus Page 102 Page 103 Page 103 Page 106 Page 108 Page 109...

Page 176: ...172 DF 760E Appendix A User Menu Screens Page 110 Page 111 Page 113 Page 114 Page 115 Page 116...

Page 177: ...the instrument chassis under various conditions as described below It consists of a normally closed pneumatically actuated UHP springless diaphragm valve positioned on the sample inlet bulkhead Analyz...

Page 178: ...tal tube and compression fittings to an appropriate exhaust system The pump power cord is connected from the rear of the analyzer to the rear of the pump enclosure 15 4 Operation Before power is appli...

Page 179: ...nclosure may contain sample gas and should be appropriately vented CAUTION After passing through the moisture cell and orifice the sample is under vacuum and any leak in the system would result in ing...

Page 180: ...t 1 10th that at approximately 14 scfh 2 Use of the analyzer case purge is at the customer s discretion It most likely is not necessary since in the event of sample delivery interlock the sample feed...

Page 181: ...y System DF 760E 177 Figure 145 Hydrogen Service Safety System CASE PURGE VALVE WITH 1 4 COMPRESSION FITTING SAMPLE DELIVERY INTERLOCK VALVE WITH 1 4 FEMALE VCR FITTING 1 18 29 85 3 07 77 85 3 27 82 9...

Page 182: ...gen perferred Purge applying electrical power Set purge BY A PURGE SYSTEM For explosion protection while purge flow drops below 26 scfh will be cut by the safety interlock if enclosure for flow rate t...

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