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Elster gas-lab Q1 Скачать руководство пользователя страница 153

Annex

11

gas-lab

Q1

Page 145

11.2 Menue structure of the Q1

Within the main display of a module, you may open the listing of the subordinate menu items by
pressing the menu button . By pressing the button again, the menu with the listing of all
available modules is opened.

TG channel 1 start/end

TG channel 3 start/end

Process values

Calibration

Purging

Gas quality

Modules:

Gas switched on

1P-cal. start

3P-cal.start

Cal. cancel

(

al. only

after begin of c

)

Integrated RDT

History

RDT statistics

GSM

Synchronisation

(wireless modem only)

(PTB time query only)

Menu items for functionalities that are not parameterised are not displayed.

Following modules are not listed in the menu overview shown above:
-

(

) and

(

) for the gateway functionality

(this display is meant for diagnosis by experts only)

DSfG -Requester

Data exchange Host-Communication

Monitoring

(

Error listing, Measurements)

Accept (all)

Next listing

Measurements

Groups

Single messages

Disabled messages

Switches

Resetting
Reset all

View

Data logging

(Archives and Logbook)

Clear pulse statistics

View

Device configuration

Inputs

Outputs

DSfG

DCF77

Locks

Set clock

Synchronise clock

Display test

System

(basic device data)

Test on/off

Open
Close

General polling
Error statistics

Clear statistics

View

Synchronise now

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Содержание gas-lab Q1

Страница 1: ...2013 Elster GmbH Edition a 19 3 2013 Gas quality analyser Q1 Technical documentation Function operation commissioning and maintenance FCQ1 BAShort EN a 19 3 2013 ...

Страница 2: ...ered trademarks of Elster Microsoft Windows and Windows NT are registered trademarks of Microsoft Corporation HART is a registered trademark of HART Communication Foundation Elster GmbH Schlossstraße 95a D 44357 Dortmund Germany Tel 49 231 937110 0 Fax 49 231 937110 99 E mail info elster instromet com ...

Страница 3: ...ality error listing 25 4 2 accept the gas quality measurement errors 26 4 3 check all parameter settings 27 4 4 check the input values 28 4 5 view and check the outputs 28 4 6 view the archives 28 5 Functional description 29 5 1 Gas quality module 29 5 2 Data logging module 53 5 3 Monitoring module 59 5 4 System module 78 5 5 Integrated RDT module 87 5 6 DSfG module Data exchange module 89 6 GAS W...

Страница 4: ...able when required 122 8 4 Commissioning of Integrated RDT module 122 8 5 Commissioning the sensor system 123 9 Maintenance 125 9 1 Maintaining the gas net Q1 evaluation computer 125 9 2 Maintaining the gas lab Q1 sensor system 128 10 Technical data Q1 129 10 1 Device type 129 10 2 Sensor technology details gas lab Q1 129 10 3 Evaluation computer details gas net Q1 131 11 Annex 135 11 1 Error list...

Страница 5: ...e actions to be carried out Please refer to the corresponding technical regulations DIN DIN EN VDE VDI and DVGW for general information on mounting commissioning taking out of service and maintaining Below we have listed the standards and guidelines that must be observed DIN EN 60079 14 Publication date 1998 08 Electrical apparatus for explosive gas atmospheres Part 14 Electrical installations in ...

Страница 6: ...roved calibration gases are permissible The oxygen content in the natural gas must not be higher than 2 0 percent by volume The ventilation must be connected to the exhaust gas manifold via a stainless steel tube with a minimum inside diameter of 4 mm After a voltage failure the measuring system automatically purges with process gas before it activates the sensors After a new gas cylinder with fla...

Страница 7: ...ned if the atmosphere is explosive The loosening or unscrewing of the breather is prohibited Only authorised personnel is allowed to exchange the breather if need be In this case the breather as a whole must be exchanged Only authorised personnel are allowed to exchange a cable entry gland if necessary The sensor system may only be switched on before or together with the gas net Q1 evaluation comp...

Страница 8: ...ulse generators located in hazardous areas e g zone 1 A mixed connection of intrinsically safe and not intrinsically safe circuits is not permitted in case of these subassemblies The evaluation computer is supplied by 24 V DC and must be secured externally by 1 A The earthing is connected to PE of the power supply connector for equipotential bonding Observe the regulations of the relevant standard...

Страница 9: ...device types This yields a modular system that is advantageous to the user as a particular module can always be operated and adjusted in the same way no matter in which device type it has been installed 1 2 The measuring principle The gas lab Q1 measuring system is a gas quality analyser that performs infrared absorption and thermal conductivity measurements The primary target variables are the gr...

Страница 10: ...ovides some digital and analogue output possibilities The evaluation computer also controls the measuring process and calculates the target variables gas lab Q1 sensor system Vent gas line RS422 4 wire Hazardous area Non hazardous area Gas supply 24 VDC Sensor unit Sensor elektronics Double block bleed valve set RS422 optical fibre converter gas net Q1 evaluation computer optical fibre EEX e Commu...

Страница 11: ...on calibratable sample analysis of the natural gas The underlying algorithm is based on the systematic of the composition of natural gases In case of non typical gases a major deviation in the measured value of a single component can occur The device measures continually and determines new measurements every second It can therefore also be used for fast closed loop control tasks The manufacturer c...

Страница 12: ......

Страница 13: ...e process gas and two connections for calibration gases The out flowing gas is led via a vent gas line The housing is mounted on a mounting plate in such a way that the gas and other process connections point downwards In order to ensure that the housing withstands the maximum permissible inside pressure of 1 100 mbars a breather is led out of the housing at the top The following illustration show...

Страница 14: ...e power supply connection exhaust gas connection of gas lab Q1 pressure controller with integrated safety relief and safety shut off valve data line connection pressure gauge of inlet pressure for gas lab Q1 calibration gas 1 connection process gas connection calibration gas 2 connection release button of safety shut off valve ex junction box Not only the sensor housing is installed on the mountin...

Страница 15: ...uter The housing of the gas net Q1 evaluation computer is designed as plug in unit for a 19 frame and is available in two housing sizes i e with a mounting width of 1 3 for up to three process boards or a mounting width of 1 2 for up to six process boards The device front includes one 8x32 characters LCD one keypad with 16 keys one status LED and the calibration switch The DSS data interface is al...

Страница 16: ...he tasks of each individual device number of required output signals etc The name of the software variant the version s number and the checksum for the identification of the software version can be invoked directly at the device via the main display of the System module The main functionality of the Q1 is measuring the gas quality The sensor system is connected via an LMFA1 type process board whic...

Страница 17: ...example a device in the narrow design with the always existing LMFA7 board gas net Q1 rear view example 0 63 ATT LE LA D1 D2 D3 I1 I3 I SH DC LMFA7 SH GD DT VN VP PE DCF77 24V HS Bus 2 M O C G f S D CD RI TX RX SD DD SH DH internal Board 3 Board 2 Board 1 Output board LMFA7 digital analog LA LE D1 D3 Three digital outputs for digital signals pulses I1 I3 Three analog outputs for measurement output...

Страница 18: ......

Страница 19: ... operator panel The device operation via the operator panel mainly serves the indication of the most important information on the display The content of the operator interface on the display depends on the individual gas net device type 3 1 The keypad The keypad of gas net devices consists of a numeric keypad for the entry of numbers minus sign and decimal point keys and a group of four navigation...

Страница 20: ...e is a three colour light emitting diode The status of this LED indicates whether an error of the gas quality measurement is pending or has been pending Please refer to the table below for the meaning of the individual colours LED status Meaning red blinking An alarm is pending i e an error has occurred that influences the gas quality measurement yellow blinking A warning is pending That is an eve...

Страница 21: ...ameterisation software GW GNET Open the calibration switch by turning it anticlockwise as far as it will go This first level of the safety concept is important for devices used for legal metrology and custody transfer In this case a seal may officially secure the calibration switch The basic display of the device will automatically be invoked when you close the calibration switch Note The User loc...

Страница 22: ...ever the operating mechanisms generally described here function in all devices in the same way Each module has a main display in which all important current values are indicated For example Among others the gas net Q1 contains the gas lab Q1 and Monitoring modules The main display of the gas lab Q1 module shows the current measurements whereas the main display of the Monitoring module indicates th...

Страница 23: ...al module display Pressing the menu key again opens up the menu list to branch to any module Repeated pressing closes the menu The list of submenus of a module is provided according to the current parameterisation Menu items that relate to functionalities which are not parameterised are not offered at all Submenus of a module are either calling other displays or dialogs in which the user can manip...

Страница 24: ...and select a menu item The selected target is presented in an inverted way i e with green writing on a black background Activate the menu item belonging to the selected entry by pressing the Enter key For example We assume you want to change from the basic display of the Q1 to the main display of the Monitoring module For this press the menu key first to open the menu window The first entry of the...

Страница 25: ...list of all modules the device software contains Press the rightward arrow key several times until the module is selected that you want to see In our example it s the Monitoring module Then press the Enter key and the display of the just selected module will be invoked Module list Without hyphens in front of the menu descriptions Module list Monitoring module is selected ...

Страница 26: ...have selected a parameter that can be changed you may switch into the edit mode via the Enter key In order to render the operation more comfortable there are different methods of defining a new value depending on the type of the value to be changed Direct entry of a new numerical value If you would like to replace individual characters only delete the characters step by step from the right using t...

Страница 27: ... values will be accepted or Cancel the values will be rejected For example Change of the lower hint limit for the GCV in the Monitoring module of the gas net Q1 After you have invoked the associated menu item the following display is visible The currently set value is indicated Switch to the edit mode via the Enter key Start Display Single message Value to be modified is selected Edit mode The ins...

Страница 28: ... Thereby the new value will be accepted If you don t want that you should leave the edit mode via the rightward arrow key Invoke the menu now If you confirm OK by pressing the Enter key the new value will be accepted To reject the modification go to Cancel by pressing the rightward arrow key and afterwards the Enter key You will quit the dialog in both cases 1 2 3 4 5 6 7 8 9 0 Options on leaving ...

Страница 29: ...s opened The state of the revision switches can be changed in the submenu Switches of the Monitoring module Therefore go to the related dialog via the menu items Monitoring Switches In the above illustration the revision switch for both streams is shown as closed Revision 1 off Revision 2 off Let s assume that you want to activate the revision switch for the first stream On entering the display th...

Страница 30: ...llows Then press the Enter key to leave the edit mode Invoke the menu now If you confirm OK the new value will be accepted To reject the modification go to Cancel and press the Enter key afterwards Selective list On is selected Revision switch 1 is opened now Options on leaving Acceptance or rejection of the changed values ...

Страница 31: ...g the Enter key Tip If you don t want to modify an offered value skip it by pressing the rightward arrow key Change the value either by directly entering the new value via the numerical keypad or by selecting a new value from a list After having edited all values press the Menu key The invoked menu contains the menu items OK and Cancel Selecting OK means accepting the modified values Selecting Can...

Страница 32: ......

Страница 33: ...the Monitoring menu item 4 Press the Enter key The main display of the Monitoring module is invoked The error with the highest priority level is displayed Scroll through the error listing using the arrow keys 5 Proceed to Chapter 5 3 2 should you need more detailed information If you would like to accept an error proceed to the very next chapter There may be up to two error listings In addition to...

Страница 34: ...he display cannot be accepted the first menu item appears as being crossed out Accept In this case press the Menu key again to quit the menu If the error can be accepted just select Accept and press the Enter key The error disappears from the error listing and the error with next lower priority level will be indicated on the display 4 Repeat the steps explained above to accept further errors Note ...

Страница 35: ...ly started the communication program you are linked with the connected device data technology wise The window appearing on your display shows some important basic device information 4 Select the Tools tab now Double click the Change parameters or the Edit parameterisation entry The GW GNET interface will appear on the screen This is where you can invoke and check the parameter listings of the indi...

Страница 36: ...s module Press the Menu key twice then move to the System entry using the rightward arrow key and press the Enter key 2 Then press the Menu key and select the Outputs entry by means of the rightward arrow key 3 Press the Enter key afterwards The Outputs display will be invoked 4 Please refer to chapter 5 4 2 for information on how to proceed further 4 6 view the archives 1 Change to the display of...

Страница 37: ...ue saturated Hs GCV and Hi NCV gas with H2O saturation When the device is started the evaluation computer reads the calibration data out of the non volatile memory of the sensor system and starts to measure Therefore make sure to switch on the sensor system either before or together with the evaluation computer The measuring operation may only start after the Q1 has been successfully calibrated se...

Страница 38: ...alue GCV standard density Rhon and CO2 content of the measured gas The basic display of the gas net Q1 evaluation computer supplies a survey of the measurement status and currently calculated values of the gas analysis The first two lines show the pending gas quality measurement error with the highest priority level on the left as well as time and date on the right The last three lines of the basi...

Страница 39: ... the molar percentage of the C2 components are indicated in addition to the Wobbe Ws and methane numbers MN Hi is the NCV net calorific value The variables Hs Rhon and CO2 are corrected values used in the automatic adjustment by means of a process gas chromatograph PGC The values satHon and sat Hun are the GCV and NCV in case of saturated concentration of H2O for the defined reference condition At...

Страница 40: ...elect the Process values entry by pressing the rightward arrow key Press the Enter key afterwards The Process values display contains too many values to be indicated all at once Scroll up or down the display with the arrow keys The upper part of the display shows the last valve positioning command sent by the computer to the valve set as bit string 10010001 Also the number of the current measureme...

Страница 41: ...R of the second gas path must be set to about 80 mbars If the methane cylinder is not already opened open it now and do a purging right after it see 5 1 5 Also the corresponding shut off valve must be opened It is not necessary to open the calibration switch at the gas lab Q1 for this calibration type An automatic 1 point calibration with methane can be carried out during normal measuring in the f...

Страница 42: ...he controller s basic display the last valid gas quality values are maintained provided any values are available The basic display shows 1P cal during calibration A Revision message will not be generated If you want to abort the function prematurely do so by keeping to the following instruction sequences Invoke the menu from the basic display and select Calibration Confirm the selection and invoke...

Страница 43: ...ibration data provided such data exists To manually start the 1 point calibration do so by keeping to the following instruction sequences Invoke the menu from the basic display select Calibration and confirm Measurement values of different sensors are displayed now By pressing the menu key again the following submenu appears Select the menu item 1P cal start and confirm ...

Страница 44: ... on gas methane gas path 2 In case the methane is properly connected to gas path 2 see beginning of chapter please invoke the menu and select the menu item gas switched on After confirming the calibration with methane proceeds automatically whereas the remaining time is displayed This process starts after approx 2 minutes for purging and lasts for 10 minutes ...

Страница 45: ... 1 point calibration is finished the sensor system automatically injects the process gas and starts measuring The new correction values determined during the calibration are written to the calibration archive We also recommend observing the deviations of the automatic 1 point calibration in the quality archive If these values are getting too high a new basic calibration should be performed ...

Страница 46: ...g reactions of the evaluation computer are indicating the status of the 3 point calibration During the parameterisation of the gas lab Q1 you may determine whether or not the last valid gas quality values shall be maintained via measurement outputs and on the basic display of the computer during this time The display shows 3P cal during calibration A Revision message will be generated If you want ...

Страница 47: ...CO2 in methane 1 Preparation For successful completion of a 3 point calibration the methane cylinder also used for the automatic calibration has to be connected correctly to the second gas path see 5 1 4 The cylinder regulator must be set to approximately 2 bars and the precision pressure regulator M2R of the second gas path to about 80 mbars If the methane cylinder has not been opened yet open it...

Страница 48: ...to the precision pressure regulator Open the precision pressure regulator so that some gas can flow off in the next step whereby the high pressure tube is purged Open the nitrogen cylinder The cylinder regulator must be set to about 2 bars Set the precision pressure regulator to approx 80 mbars Connect the high pressure tube to the third gas path of the sensor system finally For performing a basic...

Страница 49: ...te the Calibration command in the invoked menu A display with measurements of the different sensors appears By pressing the menu key again the following submenu appears Select the menu item 3P cal start and confirm Now the actual status of the 3 point calibration is indicated on the display Here e g The required operation switch on gas nitrogen channel 3 ...

Страница 50: ...mation the zero point adjustment with nitrogen proceders automatically The process takes about 25 minutes Meanwhile the display shows the remaining time It will not count down beforet 2 minutes of flushing time 3 Calibration with methane 1 calibration gas Now the prepared methane has to be switched on which the following display indicates Please invoke the menu and select the menu item gas switche...

Страница 51: ...urn off the nitrogen cylinder and remove the tube on both sides Caution Unpressurise the line first Furthermore you can prepare the second calibration gas H2 11K on the third gas path see step 1 Preparation When the calibration process with methane 1 calibration gas is finished the following display appears 4 Calibration with H2 11K 2 calibration gas Now the prepared H2 11K has to be switched on P...

Страница 52: ...calibration process with H2 11K 2 calibration gas is finished the following display appears Now turn off the H2 11K cylinder and remove the tube on both sides Caution Unpressurise the line first 5 Calibration with L1 8K or binary gas mixture 3 calibration gas Now the prepared L1 8K or binary gas mixture has to be connected see step 1 Preparation Then the prepared 3rd calibration gas is started by ...

Страница 53: ...djustment starts after approx 2 minutes for purging and lasts for 15 minutes whereas the remaining time is displayed The end of calibration is indicated by the following display Then the display changes to the following condition same as before starting After the basic calibration is finished the sensor system automatically switches back to the process gas and starts measuring Now turn close the L...

Страница 54: ...w 1 Decide whether you like to inject the test gas via gas path 1 or 3 2 Make sure the test gas cylinder is closed and the cylinder regulator is set to zero Set the associated precision pressure regulator to zero Connect the outlet of the precision pressure regulator to the first or third gas path of the sensor system using a high pressure tube When using gas path 1 make sure the process gas which...

Страница 55: ... gas injection press the Menu key and activate the TG path 1 end or the TG path 3 end command 9 Now please turn off the test gas cylinder and remove the tube on both sides Caution Unpressurise the line first A running test gas injection will be aborted automatically after 1 hour which can be parameterised and process gas will be injected instead When gas path 1 was used make sure that after the te...

Страница 56: ...bration to be carried out To remove an existing cylinder proceed as follows 1 Close the old cylinder at the main valve on top of the cylinder and unpressurize the connected gas line You possibly have to wait until the remaining gas has been used up or use an available venting possibility preferably low pressure side 2 Remove the cylinder connection from the cylinder and close the cylinder with the...

Страница 57: ... and adjust the outlet pressure of the high pressure regulator or cylinder pressure regulator to the operating pressure needed by the sensor system for the gas stream you are preparing just now i e 1 5 bars if in front of an additional low pressure regulator M2R or only 80 mbars if directly connected to gas path 3 of sensor system To purge the high pressure or cylinder pressure regulator proceed a...

Страница 58: ...er are indicating the status of the test gas injection The last valid gas quality values are maintained via measurement outputs provided any values are available at all The Revision status will not be indicated Proceed as described below 1 Connect the gas cylinder to the relevant gas path Set the pressure of the cylinder regulator output to 1 5 bars and the pressure of the downstream precision pre...

Страница 59: ...d like to purge via the arrow keys Confirm your selection by pressing the enter key again 5 Press the menu key now and start the purge with OK or quit the dialog via Cancel 6 The purge lasts for about 7 minutes The display shows purging After the purge has been finished automatically the gas lab Q1 starts measuring the process gas again ...

Страница 60: ...mal and proper operating conditions All entries in the interval archive are marked with the Revision status note Furthermore the Revision switch open hint will be generated and entered in the error listing and logbook The termination of the revision operation results in the ending of the Revision switch open hint with an entry in the logbook and induces a last entry marked Revision in the interval...

Страница 61: ...entry will be overwritten by each new entry The following sections list the types of archive groups each gas net Q1 module provides Gas quality module The gas quality module provides 3 archive groups The PTB archive logs the billing relevant data which consists of the gross calorific value GCV CO2 content and status of the measurement system The data is recorded every 15 minutes The PTB archive ha...

Страница 62: ...hanges of the parameterisation are logged If individual parameters are modified the old and new values will be logged in addition to the time mark The module to which the changed parameter belongs is also displayed A completely new parameterisation will be entered in the changed settings archive as New parameterisation via the data interface when the calibration switch is open A change of the para...

Страница 63: ...n example After the main display of the Data logging module has been invoked the most recent entry of the first channel of the first archive group is always indicated first Choose the archive information you would like to view The archive type is selected at the beginning i e it is backlit in black Press the Enter key to get into the edit mode A list opens up from which you may choose the desired ...

Страница 64: ... of time to be filtered by changing day month year and time one after the other You get into the edit mode as indicated by the black underscore for each respective field by pressing the Enter key and are thus able to specify date and time step by step Use the arrow or number keys to set the date and time Confirm your entry via the Enter key 2 Status stands for a bit string that provides an overvie...

Страница 65: ...he second line of the selection mask will be adjusted automatically See diverent times in the example Invoke the selected archive via the menu View see next section 3 Each individual measured variable of an archive group which is filed by a device has an ordinal number according to the DSfG Regulations The sequence of the ordinal numbers is arranged in such a way that the very first archive entry ...

Страница 66: ...h to the entries of other channels with the same time mark exactly the same mask you have specified before will be invoked Tip The archive presentation on the display is limited due to a lack of space To analyse larger archive areas it is much more practical to read the archives out of the device and into a PC or laptop before for example via the data interface by means of the GAS WORKS module GW ...

Страница 67: ...ty 5 3 1 1 Monitoring the gas quality measurement and error listing There are three different kinds of gas quality measurement errors which are also treated differently by the error management An Alarm is generated if a gas quality relevant error has occurred Beginning and end of an alarm are entered in the associated error listing together with a time mark Alarm begins ends If an alarm is no long...

Страница 68: ...in the error listing together with a time mark Hints cannot be accepted and disappear from the error listing automatically after they have ended A complete list of all errors together with their classification is included in the annex to this documentation The status LED of the device indicates the message with the highest priority level pending alarm pending warning unaccepted alarm unaccepted wa...

Страница 69: ...eterisation In principle there are different types of conditions to be signalled which can be mapped to such a message The operator himself defines the events that shall result in messages within the message processing by parameterising the device First the status of a digital message input set not set can be evaluated as message Messages generated by the device itself during operation may also be...

Страница 70: ...aluated a message is only considered pending if the condition to be signalled set digital input hint limit violation etc is pending longer than the minimum pending time lasts The target of the message processing concept is to combine messages in groups Owing to group monitoring and evaluation the monitoring itself remains clearly understandable even if the amount of signals is rather large The use...

Страница 71: ...o simplify the monitoring of up to 64 messages single messages can be combined by parameterisation in up to 8 groups in any composition whatever Each group generates 3 different messages that are created by linking the single messages contained in that group This way the operator is able to monitor the status of content related messages without getting lost in the observation of single messages Th...

Страница 72: ...oup message holding time Centralized message A special feature of the centralized message is that it can link the states of the single messages with an acceptance signal The property Acceptance required or No acceptance required is defined as group characteristic in the parameterisation All centralized messages are entered in the logbook and error listing When a group is marked with No acceptance ...

Страница 73: ... currently pending single message is also considered accepted if it had been accepted before it ended The fact that a centralized message is still pending after the last single message has ended indicates that at least one of the single messages has begun again after the last message has been accepted In such a case the single message is or the single messages are to be accepted The following illu...

Страница 74: ...g error listing and logbook to keep them well structured A Maintenance switch M switch is used to suppress group and or centralized messages if maintenance work has to be carried out The setting of this M switch affects each group differently No influence A set M switch does not have any effect on the signalling reactions of this group Suppression towards telecontrol This means that if the M switc...

Страница 75: ...gned to the main signaller The main signaller may include any number of groups It starts operating when a message arrives that belongs to one of the involved groups and it ends upon acceptance no matter whether or not messages are still pending The acceptance can be implemented via the digital input assigned to the main signaller Besides if all groups are accepted via the operator panel the main s...

Страница 76: ...onitoring of the process values It is possible to link the data logging with one or more group s of single messages In this case the logging takes place upon the beginning and end of each message contained in one of the involved groups If the development of a particular process value shall be logged in detail a maximum change rate can be defined for an archive channel Then the entire archive group...

Страница 77: ...sValueArchive in the error listing and logbook of the monitoring module The data logging will only be continued if the assigned message ends Simultaneously hint PVA no frozen also ends The freezing of measurement archives is useful if you are interested in how a measurement develops in case a certain event occurs It may be possible for instance to link the freezing with a centralized message Then ...

Страница 78: ...e black scroll arrows on the right side of the display indicate whether or not there is more than one entry in the listing The following information is provided for each error 5 An alarm has the highest priority level i e it is of greatest importance A warning has a higher priority level than a hint Cf Chapter 5 3 1 for an explanation of the terms Alarm Warning and Hint Current time Error type Ala...

Страница 79: ... listing display of the monitoring module via this menu item you accept all groups requiring an acceptance together with the main signaller hooter Accept all is crossed out if there is no need to accept any messages Next listing Via Next listing you may switch to the respective following error listing There are two error listings the Gas quality measurement error listing and the Monitoring error l...

Страница 80: ...ing any longer The messages can be accepted even before the last single message has ended Measurements The gas net Q1 evaluation computer may have up to 32 parameterised measurements for maximum minimum indication on file If you invoke the corresponding display the first measurement will be presented You can switch to the display of another measurement via the name The display contains the followi...

Страница 81: ...ociated display you will see information on the first group For switching to the display of another group you have to get into the edit mode by pressing the Enter key and select the name of the group you want to view from the appearing list Confirm your choice by pressing the Enter key again If the centralized message of the invoked group is currently pending the single message of the group that h...

Страница 82: ...either initial nor new message are indicated a centralized message is not pending Activate the View submenu to check the status of all single messages contained in the group View This display provides information on the single messages contained in the group invoked before Besides it provides information on the status of each contained single message Due to the mass of information there is always ...

Страница 83: ... to be signalled is currently pending the associated single message will only be set if the status is pending longer than the minimum pending time To be able to make out whether a single message would be pending if no minimum pending time would have been assigned to it the display includes a seconds counter If the seconds counter starts counting backwards the status to be signalled has already bee...

Страница 84: ...single message for instance to set a disabling mark For this purpose the Single messages menu must be invoked The display of this menu is structured similar to the one described above Single messages The Single messages menu refers to the message processing of the monitoring module It does not only serve to indicate basic information relating to single messages but also provides the possibility to...

Страница 85: ...u refers to the message processing of the monitoring module The corresponding display lists all currently disabled single messages Additional information indicated on the display comprises the type of the message the real message status before the disabling and possibly the counter for a monitored minimum pending time The Disabled messages menu described here merely provides information Please swi...

Страница 86: ...he user lock Note Message outputs may be parameterised in such a way that they invert the output signal during operation Please consider that this setting also applies to the output of switches Note The Switches menu offers with Revision 1 and Revision 2 two additional switching options However the gas net Q1 does not use these options 5 4 System module 5 4 1 Functions The System module comprises ...

Страница 87: ... further gas net process boards providing output channels see Chapter 7 2 2 The gas net evaluation computer provides a special menu for viewing and checking outputs see Chapter 5 4 2 Checking outputs is only possible if the locks are open DSfG optional feature for the European market DSfG is a digital interface especially developed for data communications between gas meters such as gas net devices...

Страница 88: ...tch is open If the latter is closed you may only reset the clock within a range of 20 seconds and only once within 24 hours This restriction applies to all time sources especially to the manual clock setting via the device s operator panel If you were successful in resetting the time outside the 20 seconds range two warnings will be generated Unsuccessful adjustments result in Clock synch failed w...

Страница 89: ...ate menu items System module Inputs The Inputs display enables you to view detailed information of individual analogue input channels name board channel input value etc After you have activated the Inputs menu item the first channel of the input board will always be indicated at board location 1 For instance the display of the first channel of an EXMFE4 board looks as follows To switch to the disp...

Страница 90: ...el number with operating mode Phys value The final value of the respective physical variable with physical unit Output value In case of analogue values value for the current output in mA calculated on the basis of the final value In case of messages output contact closed open In case of pulse outputs frequency in Hz number of pulses pending in the pulse buffer Test value Only for output testing se...

Страница 91: ...Select the desired output channel and press the Menu key afterwards 2 Select the Test on submenu The Test value line is selected automatically Press the Enter key to switch to the edit mode If you enter a new value now and confirm it by pressing the Enter key this value will be output via the selected output In the activated test mode the Test value indicated in the last line is no longer crossed ...

Страница 92: ...a communications between gas meters such as gas net devices Sub menu DSfG Operaitng mode menü Among the own participants bus addresses EADRs lists the Q1 internal instances Menu known participants Menu line Bus activityät The Q1 can get an attention Telegram If you need further information please contact your local agent Please see www elster com ...

Страница 93: ...t if all locks are open If at least one lock is closed you may activate the Open menu item by pressing the Enter key A dialog will be invoked in which you may enter the numerical lock s If only one lock has been defined only one line will be shown here Select the lock you would like to open in the first step Change to the edit mode via the Enter key as usual and enter the lock s string of digits C...

Страница 94: ...al time change The seasonal time change can be prevented by parameterisation In such a case the phrase not used appears next to Time zone and it is not possible to change to the edit mode here After having set the time correctly invoke the menu Return to the main display without accepting the new time adjustment via Cancel You may only confirm your setting via OK if the acceptance of the new time ...

Страница 95: ... a couple of him during an active data connection to be logically equal participant in the data traffic If you need further information please contact your local agent Please see www elster com 5 5 2 Display and operation Main display Modul Integrated RDT The main display of the module Integrated RDT indicates in what state the RDT is Optional feature for the European market and not available with...

Страница 96: ... Optional feature for the European market and not available with all software variants Historie Menu RDT statistics GSM only when connected to a wireless modem Optional feature for the European market If you need further information please contact your local agent Please see www elster com ...

Страница 97: ...roller the tasks of which are the open and closed loop control of the station and the telecontrol interfacing to a remote control centre Most of the PLCs are not DSfG capable but use other digital communication protocols9 Consequently they cannot be simply included in the DSfG station group In such cases a protocol interfacing between DSfG and host protocol is necessary gateway functionality This ...

Страница 98: ...om the DSfG side the associated export values will be updated In addition to the specification of the destination in the host the description of the export value also defines the way of positioning the data point in the host e g size scaling limits and bit position A particular import value describes for the reverse data flow direction at which position in the host a data point shall be collected ...

Страница 99: ... blocks and data words are numbered consecutively from 0 to 255 with the numbers serving as addresses A single data word is clearly defined by exactly three details the address of the data block 0 255 the address of the data word 0 255 the content of the data word The addresses to be assigned to the host data in the gas net parameterisation therefore consist of a data block data word DB DW pair Da...

Страница 100: ...gas net Q1 is subject to several basic requirements The following list provides a summary Communication protocol RK512 3964R point to point Interface V24 RS232 with PC AT pin assignment at the gas net device COM2 interface RS232 or RS422 via serial interface of an MSER2 board in the gas net device Transmission rate adjustable to 2400 9600 19200 or 38400 baud Transmission parameters 8 data bits eve...

Страница 101: ...ta The length stated in the SEND telegram and the length of the telegram itself do not correspond 5 6 2 3 Protocol specific facts MODBUS RTU MODBUS ASCII The Modbus protocol is supported for instance by the PLC series of AEG Modicon The data presentation according to the Modbus protocol is one dimensional The smallest data unit in the memory consists of 16 bits The protocol contains a number of re...

Страница 102: ... telegrams Maximum of 250 bytes 125 register words per telegram Only the Modbus telegram types 03 and 16 are supported Modbus response telegrams In the gateway slave operating mode the gateway generates the response telegrams listed in the table below when an error occurs Error number Modbus error designation Cause of the error 01 illegal function The telegram type received is not permissible i e ...

Страница 103: ...elect the protocol channel to be indicated via the Protocol selection list The subordinate menu item Host registers gives detailed information on the data exchange via this protocol channel broken down into host registers Either scroll through the individual register positions using the arrow keys or select a particular start register for the display via the Register selection submenu The Error st...

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Страница 105: ...rtant note Protected parameters can only be changed by a computer and not on the panel with opend calibration switch The following description refers specifically to a parameterization witch modified parameters protected with calibration switch 10 Please refer to the GAS WORKS CD ROM which is part of the delivery scope of each gas net device for further information on the GAS WORKS program system ...

Страница 106: ...menu 3 Select the device type you want to parameterise in the appearing dialog box and the version number of the device software in the next step In the subsequent dialog box choose an existing standard parameterisation on which the new parameter data record shall be based After you have confirmed your selection by clicking OK the GW GNET interface is activated 4 The Modules and linkages window co...

Страница 107: ...are correct Examples for such linkages are the references in the Monitoring module to the input channels for cylinder pressure and temperature These input channels are defined in the System module If you delete or fundamentally change an input value being used in a different context in a parameterisation all linkages to this value become invalid and are automatically deleted by the parameterisatio...

Страница 108: ...GAS WORKS 11 The communication program starts The window appearing on your screen shows the information Data transmission to gas net device As soon as the transmission has been completed the device will be re started The message Data transmission to gas net device in the communication window disappears The type plate of the connected gas net device is indicated instead stating the most important d...

Страница 109: ...on program by clicking the Import Data interface tool in the GW BASE toolbar After having successfully started the communication program you are connected with the device as regards data technology The window appearing on your display contains some important basic device information 3 Change to the Content tab now 4 Mark the Parameterisation data record and click the lantern icon A Save as dialog ...

Страница 110: ...GW BASE 2 Select Data Edit from the main or context menu GW GNET starts 3 Edit the parameterisation according to your requirements Please observe the notes in Chapter 6 1 4 Save your adjustments By clicking Save you save the data record under its old name If you select Save as however you may enter a new file name The created data record is saved in the GW BASE worksheet in this case and must be f...

Страница 111: ...ameterisation during an established data connection to the device Purely operational parts of the parameterisation can be exchanged this way even if the calibration switch is closed Note For instructions please refer to the GW GNET online help Totalizer setting As this device type does not contain any totalizers this help program has no function Snapshot function As this device type does not conta...

Страница 112: ...le 3 Start the communication program by clicking the Import Data interface tool in the GW BASE toolbar After the data connection to the device has been established the type plate of the connected device appears on the display 4 Select the Tools tab The appearing tab lists all available service programs 5 Start the desired program by double clicking The function range of the service programs is man...

Страница 113: ...p computer 2 Connect the DSS interface of the gas net device to a COM interface of the laptop using a parameterisation cable 3 Start the communication program by clicking the Import Data interface tool in the GW BASE toolbar After the data connection to the device has been established the type plate of the connected device appears on the display 4 Select the Contents tab The appearing tab lists al...

Страница 114: ...rthermore the data can be grouped i e in monthly packets If you download archive data at a later time values of a former month is added to the corresponding existing monthly packet and newer data is stored in a newer one 6 When reading is complete you may close the communication program via the main menu item File Exit You have to confirm dialog window first The archive records are stored with the...

Страница 115: ...e lines Ensure that the device is in de energised conditions before connecting the transmitter supply signal and data lines Any modification of the wiring is only permitted if the supply is disconnected Connect the transmitter and signal lines to the Q1 using plug in screw terminals each of which is located in a cable terminal box Connect the power supply via fixed screw terminals Data lines have ...

Страница 116: ...ate the gas lab Q1 with a nominal voltage of 24 V DC The connection of 24 V is implemented via the terminals and on the back of the device and must be externally protected against short circuits with 1 A Connect the protective earth to PE of the power supply terminal for equipotential bonding A fuse with 0 63A TT for a device with a width of 1 3 and a fuse with 0 8 A TT for a device with a width o...

Страница 117: ...green Lichtwellenleiter fiber optics H05 VV F 3G 2 5mm AWG 12 LiYCY 3x2x0 5mm TP AWG 20 Montagepanel mounting panel Erdungspunkt earthing point Schaltschrank electrical cabinet Stromversorgung power supply 2A TB TP T RB RP R RA RN R TA TN T grün gelb green yellow GND SHD 0V DC 0V DC PE2 Nicht Ex Bereich non explosion hazardous area Ex Bereich explosion hazardous area PE 230V AC N 24V DC LMFA7 0V D...

Страница 118: ...lly safe Use shielded cables for a better interference suppression The maximum cable length is 100 m at a cross section of 1 5 square mm If the cables are longer you have to ensure that the lines are installed separately from other conducting lines to avoid interferences Moreover each EXMFE4 board has one intrinsically safe temperature sensor input in 4 wire technique to be connected to terminals ...

Страница 119: ...lure afterwards When the device starts up again all connected HART sensors are polled once for the device to find out the current polling addresses The device supplies the measuring sensors with power For this shielded cable must be used However the shielding is only fixed at the device but not at the sensor If the line diameter is 1 5 square mm the cable should not be longer than 100 m If the cab...

Страница 120: ...5 Transmitted data B TXA RS422 RS485 Transmitted data A SGD Signal ground SH Shield In the gas lab Q1 the MSER2 board serves as protocol gateway functionality for the connection of a host computer Notes When RS422 and RS485 are used a matching resistor of 120 ohms may be required in the receiver between RXB and RXA depending on the cable length In case of RS485 you have to externally connect RXB t...

Страница 121: ...n of measuring sensors with a 0 4 20 mA output signal Connect the inputs via terminals A1 A2 A3 with the common ground A The analogue inputs of the MFE11 board are electrically isolated from the digital inputs Besides all channels are electrically isolated from the rest of the system Connect the cable shielding for the inputs to the SH terminal 7 2 2 5 AE12 input board The AE12 input board offers ...

Страница 122: ...nnect the cable shielding for the outputs to the SH terminal of the board 7 2 2 7 DA12 output board The digital output board DA12 has 12 transistor outputs for the output of messages or volume pulses to be connected to terminals D1 D12 with the common reference point COM Connect the cable shielding for the outputs to the SH terminal 7 2 2 8 LMFA7 output board The LMFA7 output board offers 3 digita...

Страница 123: ...uch as a laptop computer or PC The technical data is stated in the annex An interconnecting cable to the computer can be delivered as accessory A standard COM connection one to one connection is not permissible 7 2 3 2 DSfG interface Proprietary interface for the european market If you need further information please contact your local agent Please see www elster com 7 2 3 3 HSB interface The HSB ...

Страница 124: ...lease see www elster com 7 2 3 5 COM2 interface The COM2 interface is a serial interface according to RS232 for RDT applications for the European market If you need further information please contact your local agent Please see www elster com Assembling components Suitable antenna If you need further information please contact your local agent Please see www elster com ...

Страница 125: ...valves as well as the vent gas lines see above illustration gas lab Q1 exhaust gas connection of safety relief valve power supply connection exhaust gas connection of gas lab Q1 pressure controller with integrated safety relief and safety shut off valve data line connection pressure gauge of inlet pressure for gas lab Q1 calibration gas 1 connection process gas connection calibration gas 2 connect...

Страница 126: ... A 7 62 The room temperature has to be monitored for example in the limits from 5 C to 40 C 7 3 3 Gas injection line The pipes for the process and calibration gases methane are connected to the respective low pressure regulators Elster M2R usually these are stainless steel pipes with a 6 mm diameter The inlet pressure must range between 1 to 5 bars overpressure The outlet pressure has been preset ...

Страница 127: ...uld then be 12 mm 7 3 5 Electrical connection An equipotential bonding must be implemented between sensor system mounting plate and Q1 computer The power supply and the data communication with the Q1 computer are connected to the explosion proof junction box The power supply has to be able to supply a current of 4 A at a voltage of 24 V DC 5 The fuse protection is preferably implemented by means o...

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Страница 129: ...switch The calibration lock physically consists of a sealable rotary switch on the front of the device Open the calibration switch by turning it anticlockwise as far as it will go For additional control purposes the device generates hint H800 Calibration lock open when the calibration switch is open Opening the calibration switch enables the operator to access all device parameters 8 1 2 User lock...

Страница 130: ... means of the GW GNET parameterisation program for a brief description cf Chapter 4 3 You may observe the currently incoming measurements of the connected sensor in a special menu at the device for brief instructions cf Chapter 4 4 The output signals supplied via the MFA6 output board s can also be indicated for each channel via a special menu see Chapter 4 4 This way it is possible to check the o...

Страница 131: ... The Q1 computer communicates with the Q1 sensor system uploading of calibration data etc and injects process gas The display shows Waiting for PG The gas paths and in particular the pressure controllers are purged in the next step 3 Invoke the Purge menu at the Q1 computer Gas path 1 is displayed If you press the Enter key while being in this display a box for selecting the gas path 1 process gas...

Страница 132: ...temperature the sensor system takes about 1 hour for warming up Afterwards it is ready for operation The final warm up stage of the sensor system and thus the measurement stabilisation however takes 3 hours This is why the device automatically performs a 1 point calibration with methane 1215 hours after it has been switched on If you would like to perform valid measurements during these first 12 h...

Страница 133: ...upply from the total operating time in hours A battery life of 45 000 hours is guaranteed However the battery must be replaced after 10 years at the latest The battery should be replaced when a reserve of less than 20 000 hours at the beginning of the maintenance period is is remaining In addition The battery must be replaced after 10 years at the latest If the RAM battery must be replaced this sh...

Страница 134: ...tive Avoid any contact with other components The battery compartment is down on the left of the board that is located on the far right side seen from behind Detach the cover strap of the battery compartment with a screwdriver Remove the old battery Now you have 15 minutes for the battery exchange during which a data backup is guaranteed by a capacitor Insert the new battery Note When inserting the...

Страница 135: ... cartridge fuse link 5 x 20 mm 0 63 A device with 1 3 mounting width or 0 8 A device with 1 2 mounting width slow blowing fuse according to DIN Disconnect the supply voltage Loosen the 4 fixing screws on the back of the device Two of these screws could be hidden and secuted by official adhesive labels or seals Slightly withdraw the mounting rail Attention The boards are sensitive Avoid any contact...

Страница 136: ...resp binary gas mixture with 5 CO2 in methane 3 Visually check the breather located on the upper right side of the sensor system Remove the protective screwed cap of the breather and check it together with the breather s aperture for contamination 4 Observe the national regulations regarding safety checks when checking the safety devices of the low pressure regulators i e safety relief and safety ...

Страница 137: ...usly and fast and can be used for billing or controlling applications 10 2 Sensor technology details gas lab Q1 Measurements17 Primary measurements Heating value superior Hs gross calorific value GCV 30 to 47MJ m 3 Standard density s 0 71 to 0 97 kg m 3 xCO2 content 0 to 5 optional 0 to 20 Derived measurements Heating value inferior Hi net calorific value NCV Wobbe number methane number and calcul...

Страница 138: ...nding on bypass flow rate Optional 10 sec Accuracy in the range of 34 2 to 45 0 MJ m3 Hs GCV 0 4 relative s 0 8 relative CO2 0 2 absolute Reproducibility Hs GCV 0 1 relative s 0 1 relative CO2 0 1 absolute Sensor housing Dimensions weight L 38 cm W 28 cm H 22 cm 21 kg Protection class IP 54 Ex protection class II 2G EEx d IIB T4 Ambient conditions 5 to 40 C protection against direct solar radiatio...

Страница 139: ... to learn operation via invokable menus The GAS WORKS program system provides a remote control function via modem and COM2 or DSS data interface Display Illuminated LCD 8 lines with 32 characters each status LED for the indication of mains alarm warning Board array A Q1 evaluation computer must provide at least one LMFA7 board for the connection of the sensor technology via fibre optics cable The ...

Страница 140: ...A and 0 to 40 C ambient temperature 0 05 of the measurement This channel can alternatively be used for the connection of up to 4 measuring sensors with HART interface multi drop MFA6 output board One relay output break contact max 28 8 V at 120 mA Three transistor outputs max 28 8 V DC at 90 mA for messages or pulses max 25 Hz Two analogue outputs 0 4 20 mA for measurements max load impedance 300 ...

Страница 141: ...rchive polling COM2 interface serial interface to RS232C for the connection of a modem with a maximum transfer rate to V 34bis 33600 baud and data compression to V 42 or NMP5 DCF77 interface for the connection of a radio clock receiver Data logging Integrated data logging function for logging billing and operating data Parameterisation Commissioning and parameterisation are implemented via the GAS...

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Страница 143: ...d due to inconsistency of the supplied raw values Possible causes are Timeout expired for GQ source data telegram and no replacement available measurement data source availablemarked as disturbed and no replacement measurement by incorrect GQ data source settin in parametration A041 Rhon min alarm A042 Rhon max alarm The lower and upper alarm limits for the target value Rho is defined in the param...

Страница 144: ...upted longer than 5 sec The measurement stops until the communication has been re established A605 Data error Implausible data has been transferred during the data communication between the Q1 computer and Q1 sensor system The alarm is generated along with the hints H2003 H2004 H2007 H2008 H2009 H2010 H2011 H2012 H2013 H2014 H2015 H2016 and H2018 see below The individual hint indicates the exact c...

Страница 145: ...rm limits A triggered 1 point calibration with methane has been canceled without success vioating a stability timeout A 670 CGM disturbed The alarm indicates that the calibration gas measurement is disturbed Examples Incorrect associated measuring equipment or incorrect serial number in this case H20021 is generated simultaneously Calibration time out in this case W 753 is generated additionally H...

Страница 146: ... room temperature measurement exceeds the reference limit This signal does not prevent from futhur measurement progress but shows a possible impact on the measurement accuracy H678 Tmin test gas An input signal indicates the violation of Tmin limit ofthe test gas cylinder This signal does not prevent a test gas injection but shows a possible impact on the measurement by condensation of higher hydr...

Страница 147: ...er under parameter s limit set larger than the actual measurement range of the output measure H760 GQ calibrating The hint begins and ends each time a calibration starts or ends After a re start of the device this status remains till the startup process is finished and the regular measurement has started H800 Calibration lock open An opening of the rotary switch called calibration switch wich can ...

Страница 148: ...revision The device is in revision mode The revision switch is set automatically in case of basic calibration and test gas injection The revision switch is implemented in software and can also be opened from the operator panel of the device H1931 Logbook service request H1932 Archive service request Hints H1931 and H1932 are generated when a logbook or an archive has exceeded a certain size Please...

Страница 149: ...erated together with alarm A605 data error to mark the exact cause of the fault H 2009 ICHref min The hint appears when the signal voltage of the infrared sensor for hydrocarbons reference channel violates the lower alarm limit It is generated together with alarm A605 data error to mark the exact cause of the fault H 2010 ICHref max The message appears when the signal voltage of the infrared senso...

Страница 150: ...ark the exact cause of the fault H 2015 ICO2meas min The hint appears when the signal voltage of the infrared sensor for CO2 measurement channel violates the lower alarm limit It is generated together with alarm A605 data error to mark the exact cause of the fault H 2016 ICO2meas max The hint appears when the signal voltage of the infrared sensor for CO2 measurement channel violates the upper alar...

Страница 151: ...2022 Path purge During startup or when the input channel is switched exchanged the new channel is purged first This is announced by this hint Meanwhile there is no measurement W753 Calibration timeout A 1 point calibration has not produced an acceptable stable result after a parameterised time Hence the calibration is aborted without a result and the system switches back to process gas measuring T...

Страница 152: ...d The entry in the log is done with a new time stamp and the time adjustment can be traced in the logbook W812 Clock synch failed The setting of the device internal time is only possible within a range of 20 seconds and only once within 24 hours with the calibration switch being closed The Clock synch failed warning will be generated in case of an inadmissible attempt to set the clock W 2030 Press...

Страница 153: ...nly PTB time query only Menu items for functionalities that are not parameterised are not displayed Following modules are not listed in the menu overview shown above and for the gateway functionality this display is meant for diagnosis by experts only DSfG Requester Data exchange Host Communication Monitoring Error listing Measurements Accept all Next listing Measurements Groups Single messages Di...

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Страница 155: ... 33 Basic calibration 38 Calibration switch 13 open 121 Centralized message 64 Change Service Function 54 Clock setting 80 86 Commissioning 121 Connecting the lines 107 Connection DSfG 115 p sensor 110 Radio controlled clock 116 T sensor 110 Counter archive 68 Cylinder change 48 D DA12 output board 114 Data block 91 Data exchange 90 Data exchange module Function 90 Data interface DSS 115 Data logg...

Страница 156: ...menu 77 message 63 No acceptance required 64 65 Groups Menu 73 of messages 62 GSM Wireless modem Receive Value 88 Selection of antenna 116 GW GNET 97 service programs 103 H HART sensor 110 Held group message 64 Hint 60 Host protocol RK 512 6964R 91 Hysteresis 62 I Import of a parameterisation 101 Index 147 Initial message 73 Input board AE12 113 EXMFE4 110 MFE11 113 Input values checking 28 Inputs...

Страница 157: ... 70 Function 70 MSER2 Serial process board 112 M switch 66 N New message 74 Next listing 71 O Operating principles gas net 11 Ordinal number 57 Output boards DA12 114 LMFA7 114 MFA6 114 Outputs 79 checking 28 testing 83 viewing 28 82 P Parameter Change Function 54 Parameterisation 97 122 Check all setting 27 Creation 98 import 101 Short description 98 Password protection 80 Pin assignment COM2 int...

Страница 158: ...1 5 Serial process board MSER2 112 Single messages 76 Status bit string 56 Status LED 12 Switch 78 System module Display operation 81 Function 79 T Technical data Q1 129 Temperatur sensor connection 110 Test gas injection 46 Time synchronization via radio clock 80 Types of Achive groups 53 U User lock 121 Function 80 V View archives 55 58 W Warning 59 ...

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