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Operation | 6

T-Guard2_Operating-instructions-jina85en1-13-(2009)

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6.5 Operation modes

You can carry out measurements in 3 operating modes:

• Accumulation measurement

• Carrier gas measurement

• Continuous measurement (accumulation or carrier gas)

6.5.1 Accumulation measurement

If a leaking test object that has been filled with helium under pressure is placed in a

closed measurement chamber, the helium concentration in this measurement

chamber increases over time. This is called accumulation (of helium). The difference

between the helium concentrations at 2 time points provides the leak rate.

The air in the measurement chamber must be circulated so that the concentration of

the helium in the entire measurement chamber is set equally.

The following diagram shows the typical helium concentration over time in a closed

measurement chamber with a leaking test object. Because of the helium content in the

environment, the helium value is never zero. The helium concentration shows linear

growth over time. The device measures the helium concentration in the measurement

chamber 4 times (except for turbo measurement).

Содержание 540-200

Страница 1: ...Translation of the original operating instructions T Guard2 Leak Detector jina85en1 13 2009 Catalog No 540 200 540 201 From software version V 2 41 ...

Страница 2: ...INFICON GmbH Bonner Strasse 498 50968 Cologne Germany ...

Страница 3: ...ccessories not included in the shipment 17 4 3 1 Control unit 18 4 3 2 Control unit connection cable 18 4 3 3 Connector mated set 19 4 3 4 Fore pump 19 4 3 5 Measurement and reference line 19 4 3 6 I STICK 19 4 4 Technical specifications 20 4 4 1 Mechanical data 20 4 4 2 Ambient conditions 20 4 4 3 Electrical data 21 4 4 4 Physical data 21 4 4 5 Factory settings 22 5 Installation 23 5 1 Setup 23 5...

Страница 4: ... Basic settings 40 6 4 1 Setting the language and date 40 6 4 2 Selecting a pressure unit 41 6 4 3 Setting the display 41 6 4 4 Calibrate 42 6 4 4 1 Accumulation measurement 43 6 4 4 2 Carrier gas measurement 44 6 4 4 3 Check the calibration 45 6 4 5 Selecting the control location 45 6 4 6 Setting up user authorization 46 6 5 Operation modes 47 6 5 1 Accumulation measurement 47 6 5 2 Carrier gas m...

Страница 5: ...5 7 2 Controlling using RS 232 66 7 3 Configuring analog outputs 67 8 Save parameters 70 9 F A Q Frequently Asked Questions 72 10 Warning and error messages 74 11 Maintenance 80 11 1 Replacing the inlet filter 80 11 2 Replacing filter mat on bottom of device 81 12 Decommissioning 83 12 1 Disposal 83 13 Declaration of Contamination 84 14 Declaration of Conformity 85 15 China RoHS 86 16 Accessories ...

Страница 6: ...1 1 Target groups This instruction manual is intended for operators and technically qualified personnel with experience in leak detection technology and the integration of leak detectors in leak detection systems In addition the installation and use of the device require knowledge of electronic interfaces 1 2 Warnings DANGER Imminent hazard resulting in death or serious injuries WARNING Hazardous ...

Страница 7: ...ording to this instruction manual Comply with application limits see Technical Data Use outside the technical specifications see Technical Specifications Installation by untrained or unauthorised personnel Suctioning of liquids into the device Using the device in potentially explosive atmospheres Test of test objects that contain liquids 2 2 Duties of the operator Read observe and follow the infor...

Страница 8: ...se Universally valid safety and accident prevention regulations International national and local standards and guidelines Additional device related provisions and regulations Only use original parts or parts approved by the manufacturer Keep this instruction manual available on site Personnel qualifications Only instructed personnel should be permitted to work with and on the device The instructed...

Страница 9: ...r to any installation and maintenance work Make sure that the electric power supply cannot reconnected without authorization Before starting the leak test disconnect electrically operated test objects from the power supply The device contains electric components that can be damaged from high electric voltage Make sure before connecting to the power supply that the supply voltage is 24 V 16 stabili...

Страница 10: ...og number Quantity 1 3 pole cable socket 1 2 Connection line with chamber connection length 0 5 m 540 011 2 3 Operating manual 1 4 T Guard2 or T Guard2 with PROFIBUS 540 200 540 201 1 5 Filter 2 Connection cable to the control unit included in the scope of delivery currently only optional accessories Check the delivery contents after receiving the product to ensure it is complete Transport ...

Страница 11: ...13 2009 11 90 NOTICE Material damage if incorrect transport packaging is used Transport over long distances Keep the original packaging Only transport the device in its original packaging Storage Always store the device in compliance with the technical data see Technical specifications 20 ...

Страница 12: ... the reference inlet This allows the natural helium content of the air at the measurement location to be measured This measurement value influences the calculation of the test result Wise Technology Sensor The Wise Technology Sensor consists of a glass housing which is locked with a quartz membrane The quartz membrane is permeable only for helium The pressure in the interior of the glass housing i...

Страница 13: ...n1 13 2009 13 90 4 2 Design of device Basic unit The main unit is only called a device in the following as long as the meaning remains clear 1 2 3 Fig 1 Front view 1 IN connection measurement inlet 3 OUT connection pump connection 2 REF connection reference inlet ...

Страница 14: ...rol unit connection CONTROL UNIT 9 Thermal circuit breaker resettable 4 PLC interface PLC IN OUT 10 Rubber feet 4x 5 Analog recorder output RECORDER 11 Ventilation grill with filter 6 Status LEDs Thermal circuit breaker resettable The thermal circuit breaker trips in case of wrong polarity or if the current exceeds 7 A for a longer period of time After you have eliminated the source of the error y...

Страница 15: ... outside and measurement results and device states of the T Guard can be transmitted to the outside The T Guard has 6 configurable digital PLC inputs and 8 configurable digital PLC outputs 5 Analog recorder output RECORDER The device has 2 separate configurable analog recorder outputs 6 Status LEDs The 5 status LEDs provide information on the device various operating modes LED Lights up when the d...

Страница 16: ...device you receive 2 identical lines with a length of 0 5 m with a filter One line is used to connect the measurement chamber to the device the other sucks in reference air see Settings for the measurements 51 1 2 3 Fig 3 Measurement and reference line with filter 1 Filter 2 Threaded connector 1 8 M NPT 3 Device connections ...

Страница 17: ... the control unit to the T Guard2 Connector mated set The connector mated set contains Phoenix connectors with which you can modify the following cables PLC Analog recorder Measurement and reference line long Lines with lengths of 0 5m 1 0m and 2 0m are available as accessories Filter set The filter set consists of 2 filters for the lines The filters must be replaced regularly ...

Страница 18: ...e device via an external control unit There are two versions of the control unit one for table top operation and another for rack installation Fig 4 Control Unit for Desktop Operation Fig 5 Control unit for rack installation 4 3 2 Control unit connection cable Use this cable to connect the control unit to the device ...

Страница 19: ...6 Fore pump example The fore pump sucks the air from the measurement chamber and guides it to the T Guard2 The fore pump is double stage brushless and operates at a supply voltage of 24 V DC 4 3 5 Measurement and reference line Lines with lengths of 0 5m 1 0m and 2 0m are available as accessories 4 3 6 I STICK Fig 7 I STICK On the I Stick you can save parameters and quickly switch between the diff...

Страница 20: ...1 mm 272 mm Weight 6 8 kg Line connections 6 mm quick connectors Screw thread IN REF line 1 8 M NPT Noise level 56 dB A 4 4 2 Ambient conditions Max height above sea level 2000 m Maximum relative humidity 80 to 31 C and 50 above 31 C Max storage temperature 20 C to 60 C Permissible ambient temperature during operation 5 C to 50 C Degree of contamination 2 ...

Страница 21: ...al data Max inlet pressure 1300 mbar Minimum detectable leak rate helium 1 x10 6 mbar l s Maximum leak rate that can be displayed 15 mbar l s Measurement range 5 decades Time constant of the leak rate signal 63 of the final value 1 s Gas flow FINE 180 sccm Gas flow GROSS 90 sccm Helium sensor Wise Technology Max carrier gas flow 1000000 sccm Time until ready for operation 3 30 min depending on the...

Страница 22: ...tion leak rate calibration leak 1 x 10 5 mbar l s He concentration 100 Standby time 10 min Carrier gas flow 1000 sccm Length of the line 50 cm Measuring time Automatic Waiting time purge 4 s Purge time 4 s Volumes accumulation 1 l Pressure unit mbar Interfaces Control location All Analog output 1 2 LR exponent Analog output 3 4 LR Log 2 V decade Contamination limit Low Pressure limits monitoring L...

Страница 23: ... and solvents CAUTION Danger due to dropping heavy loads The device is heavy and can damage persons and items through tilting or dropping Have the overhead installation carried out by qualified personnel only Use suitable fixing material Only place the device on a sufficiently sturdy surface NOTICE Property damage due to overheated device The device heats up during operation and can overheat witho...

Страница 24: ...the device 2 That the circuit breaker is functional after installation 3 That the screw in depth is max 10 mm On delivery the device is filled with nitrogen This prevents the sensor from recording helium readings The line connections are equipped with plugs Remove the plugs immediately before connecting the lines The delivered lines are 0 5 m in length Lines with a maximum length of 2 0 m can be p...

Страница 25: ...lowing second measurement will determine this higher concentration For the carrier gas measurement the test object is also either placed filled and ready in the chamber or is subjected to pressure only after being placed in the chamber In any case the measurement chamber is not airtight Instead a clearly defined amount of outside air is blown into the measurement chamber The airflow comes into con...

Страница 26: ...ing line and reference line must be the same length Measuring chamber The measurement chamber must be leak proof The net volume i e the measurement chamber volume minus the volume of the test object must be between 0 01 and 10 000 liters The measurement chamber should not be bigger than necessary but the test object may not touch the walls Fan The measurement chamber must have a fan that blows air...

Страница 27: ...to the reference inlet use a buffer volume instead The buffer volume must be at least 4 liters Fore pump All vacuum pumps can be used with a gas flow of more than 200 sccm at a basic pressure of under 50 mbar INFICON offers a suitable pump as an accessory Reference line To protect the sensor helium may not enter the reference line Therefore only outside air or fresh air may be sucked into the refe...

Страница 28: ...1 Carrier gas pump 6 Test object 2 Mass flow controller optional 7 Outside air inlet 3 Measurement line 8 Reference line 4 Measuring chamber 9 Fore pump 5 Fan Carrier gas pump The carrier gas pump ensures carrier gas flow through the measurement chamber The following limits apply Expected leak rate Carrier gas flow 1 10 5 mbar l s 3000 sccm 1 10 4 mbar l s 30000 sccm 1 10 3 mbar l s 300000 sccm Ma...

Страница 29: ...s distributed equally around the test chamber It is therefore irrelevant from the point of view of the measurement result whether the leak is close to the measuring line Test object The test object should not be placed on the areas that may be leaking Outside air inlet The inlet for the outside air must be opposite the exhaust air connection Do not make the outside air inlet too big Helium may not...

Страница 30: ...onnected from the power supply The diagram below displays the dimensions of the control unit for rack installation Fig 11 Dimensions of the control unit for rack mounting The front of the control unit for rack installation corresponds to protection class IP40 Place the table device on a stable base or mount the control unit in a rack Connect the external control unit to the CONTROL UNIT connection...

Страница 31: ...se power supply cables with a sufficient cross section see below The following power supply unit types are suitable Output voltage with electrically safe separation Output voltage 24 V DC 16 Current rating min 6 A In general the device consumes 70 W Cable length Minimum diameter cable type 8 5 m 0 75 mm 2 10 m 1 mm 2 AWG 18 15 m AWG 16 17 5 m 1 5 mm 2 25 m AWG 14 The diagram shows the pin assignme...

Страница 32: ...he I O port with regard to the protective conductor cable or the ground potential must be less than 48 V DC or 25 V AC Technical data for the PLC inputs Input voltage 24 V DC nom 28 V DC max Low level 0 7 V High level 13 28 V Change from LOW to HIGH The programmed input function is activated edge controlled The PLC inputs and PLC outputs are electrically isolated Fig 13 Electrical connection for t...

Страница 33: ...rial damage or personal injury can result from current that is too high at the inputs and outputs The voltage at the I O port with regard to the protective conductor cable or the ground potential must be less than 48 V DC or 25 V AC Technical data for the PLC outputs Nominal output voltage 24 V DC Maximum output voltage 28 V DC Maximum sum of the currents for the output pins 8 11 0 75 A protection...

Страница 34: ...setting PIN Function 8 TRIGGER 1 9 ERROR WARNING 10 READY 11 MEASURE 12 STANDBY 13 REC STROBE 14 WARNING 15 CAL ACTIVE 16 COMMON Pin 16 is the common pole for all outputs The pin can be used either as a positive or negative pole The allocation of functions for pins 8 to 15 can be changed ...

Страница 35: ...g output 1 PIN 1 0 10 V PIN 2 Mass Analog output 2 PIN 3 Mass PIN 4 0 10 V Load resistance 10 kOhm per output The allocation of functions can be changed see Connecting the PLC inputs to the electrical system 32 5 8 Connecting to a PC A PC can be connected using an RS 232 interface with a commercially available 9 pole sub D connector Please refer to the interface description doc no jins85e1 for fur...

Страница 36: ... of the line or its inner diameter is changed the measurement speed and the measurement results are affected Only use the supplied lines or those available as accessories Push the hoses into the ports until they lock into position To release the lines press the release ring and pull the line 1 2 3 4 Fig 16 Vacuum line connection 1 IN connection for the measuring line 2 REF reference connection for...

Страница 37: ...tinued operation of the device with a running fore pump even if not in use The measurement view appears when the device is ready for operation 6 3 Display and keys on the control unit All settings are made with the eight keys to the left and the right of the display The function allocations of the keys change depending on the current operating step The function allocation is shown directly next to...

Страница 38: ...that was closed with Calls up information Software version operating hours serial number date and time warning and malfunction messages Back to last menu level Navigates in a selection list Pressing the key assigns the allocation 0 to that key and 1 to an adjacent key The same setting option exists for the numbers 2 3 4 5 6 7 and 8 9 Closing the window and calling up the measurement view Back to t...

Страница 39: ... graph logarithmic 4 Leak rate unit 9 Warning triangle 5 Operation mode To 1 Selected set of parameters The selected set of parameters is displayed in the upper row of the measurement view If the set of parameters is subsequently changed this is illustrated by means of a small star before the name of the parameter set To 7 Information on helium background The device measures the size of the helium...

Страница 40: ...tting the language and date Language You can select one of the following languages English German French Italian Portuguese Spanish Japanese Select Settings Miscellaneous Language To temporarily set the language to English press keys 2 and 6 during the warm up phase Call up the language setting after the warm up phase and set the desired language Fig 18 Numbering sequence of the keys Date and time...

Страница 41: ...ions Select Display Contrast If the display is not legible after switching on because it is too dark or too bright you can change the setting as follows 1 After switching on press the 3 key to make the display darker or 7 to make it brighter 2 Call up the contrast setting after the warm up phase and set the desired contrast Inverting the display The factory setting with black font on light backgro...

Страница 42: ... Calibration is only possible after the device has completed the warm up phase Before this point the relevant menu item is not displayed In the following operation you only need to calibrate again if the measurement setup or the measurement conditions are changed Accumulation measurement Change to the accumulation volume Change to the measurement time for manual measurement time entry Change to th...

Страница 43: ...y pressing OK Calibration sequence In the main menu select Settings Measurement settings Accumulation volume and enter the net volume of the measurement chamber volume of the measurement chamber minus the volume of the calibration leak In the main menu select Trigger Trigger level 1 and enter the trigger level for the upcoming measurement run see Settings for the measurements 51 In the main menu s...

Страница 44: ...e by pressing OK Calibration sequence Select Settings Measurement settings Carrier gas flow and enter the carrier gas flow In the main menu select Trigger Trigger level 1 and enter the trigger level for the upcoming measurement run In the main menu select Calibration Test leak rate and enter the leak rate of the calibration leak Place the calibration leak in the measurement chamber and close the m...

Страница 45: ...l location Select from where the device should be controlled Control location Function Local control unit The device can only be controlled using the control unit RS232 The device can only be controlled using the RS 232 interface PLC The device can only be controlled using the PLC inputs Local and RS232 The device can be controlled using the control unit and the RS 232 interface Local and PLC The ...

Страница 46: ...n Select Main menu Access control Access to CAL function Protecting settings You can protect access to the settings with a PIN To prevent entry errors you have to enter the PIN twice After confirmation with OK the main menu is displayed and the PIN is effective immediately To cancel protection again enter 0000 as the new PIN factory setting Fig 20 Defining the menu PIN ...

Страница 47: ...es over time This is called accumulation of helium The difference between the helium concentrations at 2 time points provides the leak rate The air in the measurement chamber must be circulated so that the concentration of the helium in the entire measurement chamber is set equally The following diagram shows the typical helium concentration over time in a closed measurement chamber with a leaking...

Страница 48: ...at the beginning of the measurement the helium concentration in the measurement chamber is already higher than the environment by approx 1000 ppm the test object has a large leak In such a case the device stops the measurement The display shows a leak rate that is a hundred times higher than trigger value 1 or if used trigger value 2 If the test object passes the GROSS measurement the device switc...

Страница 49: ...r l s per liter of the net volume is set the device automatically carries out a turbo measurement The turbo measurement only takes 6 seconds consisting of 3 seconds settling time and 3 seconds measurement time The device is ready to measure again after 2 further seconds 6 5 2 Carrier gas measurement The following diagram shows the typical helium concentration over time in a measurement chamber wit...

Страница 50: ... be seen after 0 1 s Three times this time reveals 95 of the signal 0 3 s in this example Five times this time reveals 99 of the signal 0 5 s in this example With a larger gas flow the measurement is quicker but the sensitivity is lower The smallest representable leak rate increases with increases to the gas flow Dynamic measurement To save time you can calibrate and measure with a shorter time th...

Страница 51: ...he measurement you should always switch to the reference line using Stop or select standby see Standby 56 This preserves the sensor 6 6 Settings for the measurements When you have decided on an operating mode set the parameters for the measurement Trigger level 1 and 2 Accumulation measurement If a trigger value greater than 1 10 3 mbar l s per liter of the net volume is set the device automatical...

Страница 52: ...asurement If a turbo measurement is triggered as a result of the low He concentration or if the measurement time has already reached the maximum length Carrier gas measurement If the measurement is carried out as a GROSS measurement or if the measurement time has already reached the maximum length Length of the line The measurement line length is important for the measurement time and you must set...

Страница 53: ...automatically sucks air in and uses it to purge the measurement line and the sensor Select Settings Measurement settings Set times Wait time purge Setting range 1 300 sec The duration of the purge time can also be set Select Settings Measurement settings Set times Purge time Setting range 1 50 sec The larger the leak the greater the purge time should be During the purge time the device checks the ...

Страница 54: ...r minus the volume of the test object In the main menu select Settings Measurement settings Accumulation volume The setting range is 0 01 10000 liter To determine the volume you can carry out the device volume test see Basic settings 40 Carrier gas flow carrier gas measurement only Enter the carrier gas flow In the main menu select Settings Measurement settings Carrier gas flow The setting range i...

Страница 55: ...ted with the interface or with the selection of Start During the measurement bars display the measurement progress When the measurement is finished the display shows the leak rate or a malfunction message The measurement can be interrupted at any time by selecting Stop The leak rate displayed at that point is a provisional value Fig 23 FINE measurement progress bars Fig 24 Leak rate display of an ...

Страница 56: ... the sensor The cleaning time depends on the helium content of the supplied air and the degree of contamination Continuous measurement No trigger value can be set for the continuous measurement You must therefore stop the measurement yourself as soon as you see that the sensor current is too high The device switches automatically to the reference line as a last resort when the sensor current is gr...

Страница 57: ...ind all the current measurement settings under View change settings You can select a setting using the right arrow key and switch to the corresponding setting window by selecting Change Settings overview Fig 25 Settings overview Leave the window by selecting Cancel Changed settings are saved Internal data You can display all of the device s internal data by selecting Internal data You can switch b...

Страница 58: ...ory Maintenance you can display the last 12 measurement results warning malfunction messages and calibrations Cal factor You can display all information on the calibration factor by selecting Cal factor Service The service menu is password protected Settings may only be made by the INFICON customer service ...

Страница 59: ...Connecting the PLC inputs to the electrical system 32 Connecting the PLC inputs to the electrical system 33 7 1 1 Allocation of functions for PLC input Using a graphic you can change the allocation of functions for the input and then test it In the main menu select Settings Interfaces Select PLC input Fig 26 User defined allocation of functions PLC inputs Change an allocation as follows 1 Select a...

Страница 60: ...rrors and warnings The device restarts after an error READY Wakes the device from standby mode STANDBY Switches the device to standby GROSS FINE Switches between GROSS and FINE measurement Only available for continuous measurement PURGE Purges the measurement lines if the input signal is high The signal from the helium sensor is ignored Only available when Automatic purge is switched off INV START...

Страница 61: ...can be switched for testing 1 Select Test PLC output 2 Using the arrow keys navigate to the output you want to test 3 Select Switch relay PLC outputs 8 to 11 are connected to LEDs 1 to 4 The measured leak rate is measured at the analogue output Function Meaning OPEN Low resistance for test purposes CLOSE High resistance for test purposes TRIGGER 1 Low resistance means that trigger value 1 has been...

Страница 62: ...st be decontaminated immediately BACKGROUN D Low resistance means that the sensor current displays a low helium state This is a requirement for a sensitive measurement INV TRIGGER 1 High resistance means that trigger value 1 has been exceeded INV TRIGGER 2 High resistance means that trigger value 2 has been exceeded INV READY High resistance means that the device is ready for the next measurement ...

Страница 63: ... output are high resistance FINE GROSS High resistance means that the device is currently carrying out a measurement cycle INV GROSS LEAK High resistance means that the highest trigger value has been exceeded by at least a factor of 5 INV CONTAMIN High resistance means that the sensor has been contaminated with too much helium INV BACKGROUN D High resistance means that the sensor current displays ...

Страница 64: ...easurement After the measurement the MEASURE output becomes high resistance If only the REC STROBE output is high resistance again you can read out the analogue outputs This is the case after approx 300 ms If automatic purging is activated READY becomes low resistance after purging Only then can the next measurement be started Fig 28 Example of a PLC controlled accumulation measurement Fig 29 Exam...

Страница 65: ...e measurement the MEASURE output becomes high resistance If only the REC STROBE output is high resistance again you can read out the analogue outputs This is the case after approx 300 ms The READY output becomes low resistance after the reference measurement This lasts as long as the FINE measurement The next measurement can only be started after it Fig 30 Example of a PLC controlled carrier gas m...

Страница 66: ... that are understandable for humans This protocol is pre set in delivery condition The binary protocol can be used to communicate with the device using software that was written by a programmer This communication method is very fast It is the fastest way to for example read out the leak rate In the main menu select Settings Interfaces RS232 protocol In addition you can set the device to send the f...

Страница 67: ...ttings Interfaces analog output To change an allocation 1 Select the pins with the up and down keys on the left side 2 Select the desired function with the up and down keys on the right side 3 Confirm with OK Fig 32 Allocation of functions for the analog outputs Function Meaning Pressure 0 10 V corresponds to 0 1000 mbar in linear display LR mantissa Useful only if the other analog output is assig...

Страница 68: ...rrent linearly The upper limit value is set with the Analog scale setting see below Current log The output voltage displays the current logarithmically The corresponding values are set with the Analog scale setting see below Scaling You can set the scaling of the analog output In the main menu select Settings Interfaces Analog output scaling Set the final value and the increase volt decade for out...

Страница 69: ... A voltage of 3 7 V provides a leak rate of 7 08 10 5 mbar l s for a final value of 10 1 mbar l s and 2 V per decade For Current log the same applies for current instead of leak rate In the LR log setting the leak rate is calculated by For example 10 V correspond to the final value e g 10 3 mbar l s 3 7 V then correspond to e g 3 7 10 4 mbar l s For Current lin the same applies for current instead...

Страница 70: ...ers can be modified The designation of the current set of parameters is in the upper row of the measurement window If the set of parameters is subsequently changed this is illustrated by means of a star in front of the designation In the Copy parameters window all available storage space is listed to the left and right On the left the parameter set Default also appears which contains the factory s...

Страница 71: ...age location 4 Select Copy to save under the same name or Change name to save the parameters set under a different name Before copying the changed data is displayed for confirmation If the parameter set was successfully changed the Settings displayed window is displayed again Otherwise a malfunction message is displayed Calling up a saved parameter set 1 In the main menu select Settings Copy param...

Страница 72: ...ered incorrectly Measurements are less reproducible when the trigger level is much greater than the measured leak rate The trigger level should be the same as the leak rate to be measured Measurements are less reproducible when the measurement time is reduced too much This has the same effect as a trigger level that is too big Measurements are less reproducible when the chamber fan is too weak The...

Страница 73: ...he fan and check the measurement chamber for leaks Why does the measured leak rate become bigger over time The longer the storage time of the device the longer it will take for the device to reach full capacity after start up With storage periods of weeks to months this run in phase can take a few hours however no less than 30 minutes You are using a calibration leak that takes time to stabilize R...

Страница 74: ...t operation if necessary Error messages Errors are events that the device cannot correct itself and that force interruption of its operation The error message consists of a number and a descriptive text After you have removed the cause of the error start operation again with the restart key Warnings Warnings warn of device states that can impair the accuracy of measurements Operation of the instru...

Страница 75: ...t INFICON customer service Use a regulated power supply unit E7 15 V at the MC50 is too low DC DC circuit board is defective Contact INFICON customer service E8 15 V at the MC50 is too low DC DC circuit board is defective Contact INFICON customer service E9 High voltage is faulty Problem in the sensor electronics Contact INFICON customer service W11 WISE current not stable The device was not used ...

Страница 76: ...s smaller than 5 x the minimum display Correct the trigger value s W28 Real time clock was reset Enter date and time CPU card was replaced CPU card battery is faulty Enter date and time Contact INFICON customer service E 38 Pump is faulty Sensor pressure is higher than 800 mbar Fore pump defective not switched on or pump hose is broken Check the fore pump and the lines to the device W41 Pressure d...

Страница 77: ...ime with the I Stick inserted W52 I Stick parameter lost Check the settings I Stick removed during operation I Stick is defective Check your settings Switch the device off and back on again this time with the I Stick inserted W59 Overflow of EEPROM parameter queue May occur if a software update to an older version is carried out Restart the device If the problem still exists contact the INFICON cu...

Страница 78: ... INFICON customer service W64 There are warnings pending Confirmed but not yet valid warnings are repeated every two hours or at every new start up Check the warnings twice W65 Communication error with fieldbus module Switch the device off and back on If the problem persists contact the INFICON customer service W72 No communication with analog card Switch the device off and back on If the problem ...

Страница 79: ...r than entered Check the chamber volume settings and or gas flow W84 Calibration leak signal too small Calibration leak defective Check your calibration leak Trigger value s too high Check the trigger Volume flow setting too low Check the accumulation volume the carrier gas flow Measurement chamber leaking Check the measurement chamber for leaks W89 Overstep of the limit value The device is contam...

Страница 80: ...lter in both the measurement and reference lines Check the filter for dirt every 6 months and replace it if necessary Replace filter at the latest after 2 years Always replace both filters 1 Unscrew the old filters from the lines Luer Lock connection 2 Screw the new filters into the lines Fig 35 Filter installed Fig 36 Disassembled filter ...

Страница 81: ...e Filter set Order number 200010027 Required tools Crosshead screwdriver In production rooms with increased dust load the filter mat on the bottom of the unit can become contaminated Replace the filter mats if there is significant contamination The filter mats are changed every year as part of the service Device bottom side ...

Страница 82: ...sure that the device is disconnected from the power supply by disconnecting the power supply plug 2 Place the unit on its side to access the air filter on the bottom of the unit 3 Loosen the panhead screw 4 Remove the filter attachment together with the filter grille and filter mats 5 Remove the used air filters 6 Replace the new filter mats the filter grille and the filter attachment 7 Tighten th...

Страница 83: ...er be disposed of by the operator or be sent to the manufacturer The device consists of materials that can be recycled This option should be exercised to prevent waste and also to protect the environment During disposal observe the environmental and safety regulations of your country T Guard2 must not be disposed of in household waste ...

Страница 84: ...13 Declaration of Contamination INFICON 84 90 T Guard2_Operating instructions jina85en1 13 2009 13 Declaration of Contamination ...

Страница 85: ...INFICON Declaration of Conformity 14 T Guard2_Operating instructions jina85en1 13 2009 85 90 14 Declaration of Conformity ...

Страница 86: ...15 China RoHS INFICON 86 90 T Guard2_Operating instructions jina85en1 13 2009 15 China RoHS ...

Страница 87: ...able for control unit 5 m 551 102 Connecting cable for control unit 1 m 551 103 Connector mated set 551 110 I STICK 200 001 997 Filter set 200 001 680 E A testbox for testing the PLC in outputs 200 002 490 Power supply connection 200 002 496 Measurement chamber connection 200 002 615 Fore pump 24 V two stage brushless 200 002 929 Lines 2 0 5 m 540 011 2 1 0m 540 012 2 2 0m 540 013 Calibration leak...

Страница 88: ...ation 42 Calibration leak 42 Configuring analog outputs 67 Controlling using PLC 59 D Dynamic measurement 50 E Error messages 74 G GROSS measurement and FINE measurement 48 50 I I STICK 70 O Operation modes 47 S Setting the display 41 Standby 56 W Waiting and purge time 53 Warnings 74 ...

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