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Metrohm 774, Instructions For Use Manual

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Metrohm 774 Instructions For Use Manual Download Page 130

5 Detailed description 

 

 

 

 

774 Oven Sample Processor, Instructions for use

 

124

 

5.11.3.14  

I

nfo

.A

ctualInfo

.I

nputs

.S

tatus read 

only 

Status of the Input lines (Input0…7) of the  Remote interface.  
$Q sends the signal state as decimal number e.g. 
10 

⇒

 00001010 binary 

⇒

 2

1

 + 2

3

 

⇒

 Input1 and Input3 active 

(active = low, inactive = high) 
See also page 121ff. 

5.11.3.15  

I

nfo

.A

ctualInfo

.O

utputs

.S

tatus read 

only 

Status of the output lines (Output0…13) of Remote interface. See 5.11.3.14. 

5.11.3.16  

I

nfo

.A

ctualInfo

.D

isplay

.L1

 read 

only 

 

I

nfo

.A

ctualInfo

.D

isplay

.L2

 read 

only 

Text of the first and second line of the LCD display. 

5.11.3.17  

I

nfo

.A

ctualInfo

.C

ounter

.S

ample read 

only 

 

I

nfo

.A

ctualInfo

.C

ounter

.M

aximum read 

only 

Currently processed sample number and total number of samples. 

Summary of Contents for 774

Page 1: ... Herisau Switzerland Tel 41 71 353 85 85 Fax 41 71 353 89 01 E Mail sales metrohm ch Internet http www metrohm ch 774 Oven Sample Processor Instructions for use Program version 5 774 0010 8 774 1043 2005 07 dm ...

Page 2: ......

Page 3: ...g the needle position 13 2 4 5 Installation of the tubing system and the drying flask 14 2 4 6 Installation of the measuring cell 15 2 5 Integration ________________________________________________ 15 2 5 1 Remote connections 16 2 5 2 External bus connections 19 2 5 3 Serial connection RS232 20 2 5 4 Connecting a printer 21 3 Introduction 23 3 1 Configuration ______________________________________...

Page 4: ...______________92 5 8 Remote Interface___________________________________________97 5 9 Operation via RS232 Interface______________________________101 5 9 1 General rules 101 5 9 2 Calling up Objects 102 5 9 3 Triggers 103 5 9 4 Status and Error Messages 103 5 9 5 Error Messages Errors 104 5 10 The remote control tree ___________________________________106 5 10 1 Overview 106 5 10 2 Mode 106 5 10 3...

Page 5: ...trument 144 6 4 3 Main memory RAM 145 6 4 4 Display 145 6 4 5 Keypad 146 6 4 6 Remote interface 146 6 4 7 RS232 interface 147 6 4 8 External bus interface 147 6 4 9 Beeper 148 6 4 10 Rack code recognition 148 6 5 Initialise data memory_____________________________________ 149 6 6 Validation GLP __________________________________________ 152 6 7 Warranty and Conformity______________________________...

Page 6: ......

Page 7: ...ed out in matrices which interfere with the moisture determination process or which release their moisture only with great diffi culty Its comprehensive range of communications possibilities means that it cannot just work together with the wide range of Metrohm titrators meters and dosing instruments via its parallel remote interface and its serial RS232 interface but that it can also control or b...

Page 8: ...nal se quences which always need to be carried out once before the start and once at the end of a sample series A learning mode is provided for the creation of operating sequences with its help command parameters can be set manually The standard sample rack offers place for 36 sample vials 22 mm x 38 mm Freely definable special beaker positions can also be defined These are used for positioning co...

Page 9: ...emote interface Mains switch Mains connection Fuse holder Protective cover Gas supply Air inlet filter Connection for outlet heater Support rod Outlet heater transfer hose Coulometer cell with generator and indicator electrode Magnetic stirrer Plug cover Sample rack with 36 places including condi tioning position Lift Guide rod adjust Guide head Double hollow needle Oven with protective jacket ...

Page 10: ...e cover and the plug cover have to be in position for safety reasons The plug cover prevent spilt solvents or chemicals from adversely affecting the connections and interfaces Gas supply Protective cover Sample rack with grip Flow regulator Inert gas inlet Drying flask connections Oven with protective jacket Drying flask with molecular sieve Holder for drying flask ...

Page 11: ...ip rear panel Made by Metrohm Herisau Switzerland RS 232 Keyboard Type 1 774 _ Address External Bus 0000 00 00 The External Bus address must be set to 0 zero Plug cover External bus connection External bus address selector Serial RS 232 interface Keyboard connection Serial number Rear socket strip Drying flask Sample rack Inert gas inlet Flow regulator Outlet heater transfer tube Air inlet filter ...

Page 12: ...o sample vials can fall out When the rack is replaced this block is removed so that the upper part of the rack with the sample vials can be rotated The rack can only be exchanged in the base position recess in front of the tower The sample rack is moved to the base position by pressing the RACK key When replacing the rack take care that it is positioned correctly The guide bolts of the turntable m...

Page 13: ...corresponds to the magnet code 000001 1 3 7 Sample vials The sample rack order no 6 2041 700 is intended for use with sample vi als order no 6 2419 000 with 21 mm outer diameter Only these vials guarantee optimal heat transfer between the oven block and the sample Use only septum seals with a PTFE insert order no 6 1448 050 as these are exposed to high temperatures The sample vials must be tightly...

Page 14: ...nt and may be used in rough environments such as laboratories and manufacturing plants It must not be exposed to a corrosive atmosphere If the sample changer is operated in a rough environment regular mainte nance is strongly recommended 2 2 Power supply Follow these instructions to connect the 774 Oven Sample Proces sor to the power supply Ensure that the instrument is never oper ated with incorr...

Page 15: ...xt to the supply voltage 2 0 A slow ord no U 600 0019 Replace fuse Replace fuse if necessary and reinsert it in the fuse holder Insert the fuse holder Insert the fuse holder according to the appropriate supply voltage The white arrow besides the desired voltage has to point towards the white block mark printed on the fuse holder s panel see below 220 240 V 100 120 V 220 240 V 100 120 V 100 120 V 2...

Page 16: ...r hands off the heated oven or the sam ple in work Do not reach under the protective cover Caution Just after processing sample vials may be hot too Even parts of the sample rack can reach elevated temperature up to 60 C Allow the sample vials to cool off before removing vials from the rack or detaching the sample rack The 774 Oven Sample Processor may be used for sample processing with extraction...

Page 17: ...y and can be de stroyed by discharge Before touching any components inside the instru ment both the person and his tools should be grounded by grasping a grounded object for example a metallic part of the casing of the instru ment or a radiator in order to eliminate any static electricity When peripheral instruments are connected to the 774 Oven Sample Proc essor the sample changer and the instrum...

Page 18: ... the vial s seal by a few milimeters 2 4 3 Adjusting the sample rack Check the positioning of the sample rack After switching on the 774 Oven Sample Processor place the rack on the instrument and let it move to the first sample position by pressing the Í key The circular opening of sample position 1 of the rack must coincide with the opening of the oven block beneath it If this is not the case the...

Page 19: ...tment of the sample rack proceed as follows 1 Place a sealed beaker under the needle 2 Lower the needle on to the seal 3 Loosen the Allen screws of the sliding de vices 4 Position the needle in the centre of the seal 5 Fasten the sliding devices 6 Press RACK The instrument moves to initial position 7 Remove rack 111 1 5 44 1 Distances of the guide head and rod in mm 8 Check the distances according...

Page 20: ...he air is drawn in through the right hand side of the instrument A dust filter 6 2724 010 should be mounted on the Inlet filter connection The gas is dried by mounting a drying flask on the left hand side of the instrument as shown in the drawing alongside The drying flask is filled with molecular sieve and the outlet tube 6 1821 050 with its filter is fitted to the drying flask insert 6 1602 140 ...

Page 21: ...pper part 6 1414 030 Instead of the 6 1446 170 stop per use the nipple and O ring of the 6 2730 030 stopper to introduce the transfer hose into the titration vessel 2 5 Integration Cables Connecting peripheral instruments to the 774 Oven Sample Processor re quires Metrohm cables Otherwise safe data transmission may not be guaranteed Remark Metrohm cables are labeled with the type of the instrument...

Page 22: ...r other instruments 2 5 1 Remote connections 774 Oven Sample Processor 756 Coulometer for coulometric determinations 774 756 Control of the 756 Coulometer is carried out via the control lines of the re mote connection While a sequence is being processed the 774 Oven Sample Processor can via the serial RS232 interface cause the 756 Coulometer to load a particu lar method When drawing up a report th...

Page 23: ...010 waits for cond ready SCN Rm 000 waits for end of determination 774 Oven Sample Processor 737 Coulometer for coulometric determinations 774 737 The 737 Coulometer is completely controlled via the remote lines Control commands CTL Rm 1 starts Coulometer with CTL Rm 0 a start impulse Scanning via remote lines SCN Rm 10000100 waits for cond ready 774 Oven Sample Processor 7xx Titrino for volumetri...

Page 24: ... the 796 Titroprocessor takes over the functions of the control instrument itself Master The communica tion between the 774 Oven Sample Processor and the 796 Titroprocessor can be solved in any manner If a remote connection is used 6 2141 020 cable the input and output lines 0 7 can be used as required However it is then not possible to start a 774 Oven Sample Processor method See page 79ff for th...

Page 25: ...imat interface can be used to connect up to 4 dosing devices to the External Bus interface Up to 3 Dosimat interfaces can be switched in line cascaded and equipped with further dosing instruments The instru ment address must always be set correctly at the interfaces In this way it is possible to operate up to 12 dosing instruments directly with the 774 Oven Sample Processor with the aid of the DOS...

Page 26: ...e controlled via RS232 interface as long as it supports serial data transmission In order to guarantee safe data transmission it is important to set the same RS232 interface parameters correctly for both instruments connected see page 21f Control commands examples CTL RS M G starts a Metrohm instrument CTL RS M S stops a Metrohm instrument PRINT config prints a configuration report to a printer or...

Page 27: ...ce are accessible in the configuration menu under RS232 settings The following table lists the information necessary for connecting a printer Printer type Cable RS232 Settings Settings on Printer IBM Proprinter 6 2125 050 baud rate 9600 data bit 8 stop bit 1 parity none handshake HWs character set IBM see printer manual Seiko DPU 411 6 2125 020 baud rate 9600 data bit 8 stop bit 1 parity none hand...

Page 28: ...ace 8148 6 2125 050 baud rate 9600 data bit 8 stop bit 1 parity none handshake HWs character set Epson DIP switch settings on the Interface SW1 SW2 on off 1 2 3 4 5 6 7 8 1 2 3 4 5 6 Epson LX 300 6 2125 050 baud rate 9600 data bit 8 stop bit 1 parity none handshake HWs character set Epson see printer manual HP Deskjet with built in serial interface 6 2125 050 or cable 25 pole neg 9 pole pos e g HP...

Page 29: ...ct the required entry from a list of entries These menu items are marked with a colon Further details are given on page 58 When the configuration has been altered a RESET should be carried out with CLEAR or the oven sample changer should be switched off and on in order to ensure that the alterations become effective 3 1 1 Basic settings The basic settings which can be set in the submenu auxiliarie...

Page 30: ...he tower of the 774 Oven Sample Processor is equipped with an infrared beaker sensor which detects the presence of a sample vial in front of the tower If the beaker sensor is switched on then this test will be carried out after each MOVE command This entry also only becomes effective after a RESET or when the instru ment is switched off and then on again 3 1 2 Oven settings The basic settings for ...

Page 31: ...rted mag net 0 means that no magnet has been inserted 63 different codes are possible 000001 to 111111 Magnet inserted In this example the code is 000110 base of rack rack type The rack type indicates an internal table of positions in which the angles of rotation of the beaker positions are defined Metrohm racks use the follow ing type name pattern MXX Y XX number of sample beakers Y special code ...

Page 32: ... deliberately selected at any time For example they can be used as conditioning beakers See the exemplary methods in the 774 Tutorial The special beakers Spec 1 to Spec 8 can each be allocated a beaker position from 1 up to number of sample positions Position 0 stands for not defined Special beakers are preferably set at higher rack positions in order to be able to start the series of samples at p...

Page 33: ...e Processor can be connected to the RS232 interface It is also possible to communicate with other Metrohm instruments e g Coulometer via Metrohm remote control language and possibly instru ments from other manufacturers via the interface The necessary transmission parameters which must be matched to those of the instrument to be connected are baud rate data bit stop bit parity and handshake For da...

Page 34: ...SET keys are always accessible so that starting and interrupting methods is always possible If the Oven Sample Processor is operated with PC soft ware this may also be necessary In this case it is possible to do without the keyboard and to remove it completely lock keyboard on locks all keyboard keys exceptions see above lock configuration The basic configuration can be protected against overwriti...

Page 35: ...e Processor Instructions for use 29 lock display If the Oven Sample Processor is to be operated solely by external control software see above then the display for manual operation can be switched off lock display on locks the display ...

Page 36: ...s the current sample SAMPLE com mand or the special beaker 1 to 8 Example MOVE sample ENTER MOVE spec 1 ENTER MOVE 5 ENTER Important For safety reasons it is only possible to rotate the rack when the lift is at or above the shift position height Move lift The Ï and Ð keys move the lift upwards and downwards respec tively The lowest possible lift position is defined under the configuration paramete...

Page 37: ...t parameter of the command defines the oven temperature the second parameter sets the heating up time i e the time in which the defined tem perature is to be reached If the defined temperature is lower than the cur rent oven temperature then the oven unit will be automatically cooled The current oven temperature is always shown in the display Example HEATER init C min heat up to initial temperatur...

Page 38: ...on is used to operate the serial RS232 and remote inter faces In this way it is possible to check the communication of the 774 Oven Sample Processor with other instruments It is therefore possible to transmit a remote command as a character string to a connected instru ment via the RS232 interface or to individually activate or deactivate re mote lines Output 0 13 The interface can be selected wit...

Page 39: ...es of samples is being processed Functions for control ling the oven temperature gas flow lift and for moving the turntable are available External instruments titrators Coulometers Dosimats etc can be controlled by efficient commands In a sequence the further settings for the individual instrument components and dosing units 700 Dosino or 685 Dosimat can also be defined or altered Processing a sam...

Page 40: ...the method Care should be taken in making alterations to the method sequences These can be edited live including inserting or deleting a command line how ever the TRACE and LEARN functions are not available It is therefore not possible to test out the edited function This means that it is easy to produce illogical or critical command sequences which create an error situation and compel a sample se...

Page 41: ... Proces sor immediately returns to the normal state Unprocessed samples are not taken into account the final sequence is not carried out If settings for this occurrence have been entered under manual stop then the correspond ing actions or commands will be carried out via the interface in order to stop the connected instruments as well or to carry out other actions The sample series can also be in...

Page 42: ... the instrument is switched on a POWER UP method can be used This method is automatically started when the instrument is switched on Create a method containing a command sequence which is to be carried out when the 774 Oven Sample Processor is switched on and save this method under the name POWERUP see page 75 In the 774 Oven Sample Processor tutorial you will find a list of the exemplary methods ...

Page 43: ...ng rate is up to 15 C min depending on the tem perature range The built in fan quickly cools the oven down and supports the accurate temperature control of the oven block The temperature control of the oven is functionally separate from the other sample changer functions of the 774 Oven Sample Processor i e the set oven temperature remains constant background control even when other functions or c...

Page 44: ...order to drive out moisture quantitatively from a sample it is necessary to remove the vapors formed on heating with a stream of gas This stream of gas is also used to lead the vapors into a reaction solution contained in a measuring cell With thermally stable unproblematic sample substances such as oils air can be used as the carrier gas this can be supplied by the pump built into the tower of th...

Page 45: ...y knob of the gas flow regulator A gas flow of 20 to 100 mL min is required this depends on the determination method and moisture in the sample Display counter 1 36 110 C 55 mL min ready or press DISPLAY gas flow 55 mL min heater temp 120 C The gas flow is monitored automatically A lower and an upper limit can be defined for the gas flow if these are undercut or exceeded an error mes sage is displ...

Page 46: ... empty sample vial is used as the conditioning vial and is placed in the rack position intended for it Conditioning and blank determination The conditioning vial is moved to the oven and the lift is lowered to the rinsing position The needle penetrates the conditioning vial septum The gas flow is now switched on in order to purge the complete tubing system and to provide reproducible and constant ...

Page 47: ...ully the gas flow is in terrupted the sample moved to the oven and introduced into the oven block with the help of the penetration needle The gas flow is switched on again and the sample determination started at the Coulometer or KF Titrator Definition of an extraction time ensures that a minimum determination time and therefore heating period will be observed The driven off moisture is now transp...

Page 48: ...and oven tem perature are selected so that the sample moisture is not driven off too quickly Otherwise a moisture excess may not be absorbed by the solvent in the Coulometer cell but condense in the upper part of the cell or even be blown out of the cell Moisture depots lead significant increase of the measured value drift Reduced reproducibility of results may occur Please note The measured value...

Page 49: ...c activities depending on the operating state In edit mode it serves as an entry line Normal state sample counter Ð method name Î oven temperatur Î counter 1 36 110 C 55 mL min ready Í instrument status Ï gas flow Method processing running sequence Î counter 2 36 START 03 WAIT 11 s Í parameter Ï current command with line number Mesured values gas flow 55 mL min oven temp 110 C Using key SELECT DIS...

Page 50: ...er is in the normal state or in edit mode The uppermost row contains the CONFIG PARAM USER METHOD keys which make the menus accessible Here with the help of the keys on the left side of the keyboard you can navigate and change pa rameters For the latter the numerical keypad on the right half of the key board is available Except for the menu User Method the entries under these selection menus can b...

Page 51: ...th the method These parame ters are method specific The settings in the Parameter Menu also apply to Manual mode Select method parameters When the Parameter Menu is open pressing the PARAM key displays the next menu line After the last line is displayed the first one follows Quit exits the menu USER METHOD Open the user method menu The User Method key opens the selection menu for the loading savin...

Page 52: ...s been al tered in a menu or command line is not carried over See ENTER key Run lift downwards Run lift of the sample changer downwards The lift movement is executed as long as the key remains pressed The speed of the lift move ment can be adjusted sepa rately for each tower in the Pa rameter Menu or with the DEF key Select next menu line In a Select Menu or a se quence the Ð key ac cesses the nex...

Page 53: ...e turning position Move the cursor one column to the right With the Î key the cursor is moved one column to the right in an editing line with two parameters Any data which has been al tered will not be carried over during this action See ENTER key INSERT Add a command line to a se quence Adds a new command line before the current line in a sequence The NOP com mand no operation automati cally occu...

Page 54: ... again by the first The data is accepted with ENTER RESET CLEAR Initialization of the changer and the dosing units The RESET key serves to initialize the changer and the dosing units A method in the working memory remains unchanged The sample rack and the lifts return to their initial positions in this case A release com mand will be executed when Dosinos are connected Interruption of a method aft...

Page 55: ...op the se quence with STOP The command at which the error message occurred is al ways continued in Manual mode Abort Entry The QUIT key interrupts the entry of a parameter The original entry is reset The next highest menu level or the normal state is selected Any changed data of a menu or command line is not adopted in this case This is signalled by a beep See ENTER key QUIT acknowledges error mes...

Page 56: ...sample vials the eight rack specific special positions available can be placed Ab solute positions can also be chosen Turning direction and speed can be altered in the Parame ter Menu or with the DEF key Numerical entry 8 or Position vial Turning the sample rack to position the described vial un der the current lift In addition to the predefined sample vials the 8 rack specific special po sitions ...

Page 57: ...ion must be con firmed with ENTER Numeric entry 5 or oven control The first parameter defines the oven temperature target tem perature Using the second parameter it is possible to program tem perature ramps or by combin ing several HEATER com mands entire temperature pro files The heat up interval de fines the period within which the set target temperature should be reached DOS 6 Dosing control Th...

Page 58: ...ed Predefined bit patterns are available for the remote inter face and can be selected via simple short names for ex ready1 or end1 Character strings consisting of 14 ASCII characters may be defined with the RS 232 interface Use text edit mode 2 CTRL Interface control Controlling of external instru ments via the remote and RS 232 interface This function is used for data communication with or contr...

Page 59: ...serves to tempo rarily change various settings Changes which are done in this way are not integrated in the method and are ignored during processing of a method By repeatedly pressing the DEF key the various set tings can be selected In or der to change an entry the function must first be con firmed with ENTER The new settings take effect immediately after confirmation of the change by ENTER Numer...

Page 60: ...e listed below 0 DEF DOSRATE Change dosing rate The dosing rate may be individually set for every dosing drive Do simat or Dosino Syntax DOSRATE Dosing unit Dosing rate 0 DEF FILLRATE Change filling rate The filling rate may be set individually for every dosing drive Dosi mat oder Dosino Syntax FILLRATE Dosing unit Filling speed 0 DEF LIFTRATE Change lift speed The lift speed can be set at will Sy...

Page 61: ...sily visible With turning direction auto the sample changer independently chooses the shortest possible path for placing a vial under a particu lar lift The turning direction is automatically chosen Syntax SHIFTRATE Turning direction Turning speed 0 DEF DRIVE PORT Change Dosino port assignments The ports for each of the 12 Dosinos which can be connected may be functionally redefined Each port can ...

Page 62: ...e the text cursor is shifted one place to the left for each instance See page 60 RACK Initialise sample rack The changer can be initialised with key RACK The con nected peripherals e g Do simats or Dosinos are not af fected by this Once a method has been loaded it is retained Sample rack and lift are moved to ini tial position and automatic rack detection is performed The rack can be removed in th...

Page 63: ... STOP Stop process and peripheral instruments The STOP key terminates a method Any peripheral instruments that are connected Titrinos etc are not automatically stopped In manual stop options a submenu of the Parameter Menu you can specify what signal or data is to be transmitted via the inter face involved remote or RS232 during manual activa tion of the STOP key The connected instrument can be ha...

Page 64: ...QUIT key error messages can be acknowl edged Before acknowledg ing error messages the cause should be remedied The command during which the error message occurs will nevertheless be carried out during manual operation If an error occurs during method processing the error message is acknowledged by pressing the QUIT key and the method is interrupted HOLD state Afterwards START can be used to contin...

Page 65: ...parameter second parameter The cursor keys Î and Í can be used to switch between the pa rameters Pressing ENTER shifts the cursor automatically to the right pressing QUIT correspondingly to the left Select Choices Roll up selection DISPLAY SELECT Data can usually be entered directly via the numerical keypad block on the keyboard Pressing SELECT at entries which are specially identified by a colon ...

Page 66: ...l possible characters capital and small letters numbers and special characters in al phabetical order in the desired direction underneath the text cursor Press ing these keys once has the effect that the character chain is shifted one position left or right The character chain can be shifted quickly by pressing the keys longer ENTER Confirmation of the character selection The ENTER key causes the ...

Page 67: ...method CC ENTER or store method method Chloride QUIT QUIT ENTER reject accept or blinking text cursor blinking text cursor DEFGHIJ abcd 1234 ENTER An entire text line can be entered in this way for example for the naming of a method Text editing can be ended with QUIT The text line will be displayed in its entirety and can be accepted with ENTER or rejected with QUIT ...

Page 68: ...2 settings RS232 settings RS232 settings RS232 settings RS232 settings CONFIG The CONFIG key opens the me nu where the most important settings of the instrument are grouped in sub menus according to topic and may be altered In the first line of the dis play the description of the active submenu is always displayed Navi gating within the menus is accom plished with the cursor keys HOME and END jump...

Page 69: ...deutsch français español auxiliaries display contrast 3 Setting display contrast 0 3 7 0 no contrast 7 large contrast auxiliaries beeper ON Turn acoustic warning signal on or off ON OFF auxiliaries device label Instrument label 8 ASCII characters auxiliaries program 5 774 0010 Program version read only The following three entries become effective after a RESET or switching the changer on again aux...

Page 70: ...iguration rack definitions Submenu for the definition of the individual racks Open the submenu with ENTER rack definitions rack number 1 Number of the rack 1 16 The number of the rack in position is automatically displayed here If the con figuration of another rack must be changed its rack number must be entered and confirmed with ENTER The rack number will be shown in the first menu line for the ...

Page 71: ...osition 0 mm Special position of the lift in mm from the upper stop 0 100 mm Pressing CLEAR directly accepts the current lift position rack definitions 1 special positions Special positions submenu Open with ENTER Position of special beaker 1 special positions special beaker 1 36 0 number of positions Position of special beaker 2 special positions special beaker 2 0 0 Number of positions etc up to...

Page 72: ... four ports of a Dosino Only the dosing speed is relevant for the 685 Dosimat the other parameters are ignored Configuration RS232 settings Submenu for the serial interface parameters Open the submenu with ENTER RS232 settings Baud Rate 9600 Transmission speed in baud 300 600 1200 2400 4800 9600 RS232 settings data bit 8 Number of data bits 7 8 RS232 settings stop bit 1 Number of stop bits 1 2 RS2...

Page 73: ...e 20f For printers not listed the setting Epson is recommended In any case the printer handbook should be consulted For data transfer with personal computers IBM must be chosen RS232 settings RS control ON Switch remote control on and off ON OFF If the remote control is switched off no data can be received however reports can still be printed ...

Page 74: ...only possible when the rack is at the ground position It is recommended to initialize the changer with the RACK key parameters start sequence Open the submenu with ENTER parameters sample sequence Use Ï or Ð to move up or down one menu item parameters final sequence Use HOME or END to move to first or last menu item respectively parameters report Return to the normal state with QUIT parameters cha...

Page 75: ... for entry are valid here as for manual operation i e after selecting a command and entering the necessary data the entry is accepted with ENTER Afterwards the next command line is accessed where a new command can be entered The LEARN mode is available for the easy entry of parameters With certain commands live values can be taken over by manual execution of a single command More information can b...

Page 76: ...nts can be recorded per se quence This results in a maximum re cording time of approx 6 7 hours in the case of one measuring report per minute The recording starts at the start of a se quence in each case parameters changer settings Submenu for the changer settings Open the submenu with ENTER changer settings rack number 0 The rack that is assigned to the method 0 16 0 no particular rack This sett...

Page 77: ...er timeout SELECT key timeout settings on HEATER timeout STOP Response to a HEATER timeout STOP cont The sequence is aborted The next command is executed A HEATER timeout is triggered if the target temperature cannot be reached within the defined heating interval when executing a HEATER command This may be the case if the heating interval has been selected too short and the maximum heating rate of...

Page 78: ...depending on the setting above Parameter gas flow Submenu for gas flow settings Open the submenu with ENTER gas flow unit gas flow mL min Selection of the unit for display of the gas flow rate mL min L h gas flow min flow 0 0 mL min Lower warning limit of flow rate 0 0 999 mL min gas flow max flow 900 mL min Upper warning limit of the flow rate 0 0 900 999 mL min gas flow gas type air Selection of...

Page 79: ...in Set the dosing speed 0 01 160 ml min max dosing unit 1 fill rate 160 ml min Set the filling speed 0 01 160 ml min max The following entries are only valid for 700 Dosinos For details about Dosinos and dosing units see page 92ff dosing unit 1 dosing port 1 Define dosing outlet 1 4 dosing unit 1 filling port 2 Define filling inlet 1 2 4 dosing unit 1 rinsing port 2 Define rinsing inlet when chang...

Page 80: ...onnected peripherals to be stopped automatically or the functions of the 774 Oven Sample Processor to be reset manual stop Rmt CTL Signal output via remote interface STOP device1 14 bit 1 0 or manual stop RS232 CTL Data to be transmitted via RS 232 in terface 14 ASCII characters Clear value M S manual stop FLOW cont Leave gas flow unchanged or deactivate it cont OFF manual stop HEATER INIT C Set o...

Page 81: ...g methods Open the dialog with ENTER recall method method Select method name 8 ASCII characters With SELECT any method saved can be chosen If an empty method is to be loaded the method can be selected methods store method Dialog for saving methods Open the dialog with ENTER store method method Define method name 8 ASCII characters or activates text edit mode where any method name desired can be en...

Page 82: ...Before starting a sample series the position of the first sample can be de fined with the SAMPLE key in manual operation as long as this has not been defined in the method itself If a certain sample beaker order is needed for each application of a method the position of the first sample can be defined in the start se quence with SAMPLE X and this setting can be saved with the corre sponding method...

Page 83: ...processing is always halted LIFT 9 LIFT sample sequence 02 LIFT 1 rest mm 1 work rinse shift special rest 0 100 mm Positioning the lift The first parameter of this command defines the lift on which the command is to be executed Since the 774 Oven Sample Processor is equipped only with Lift 1 it is not practical to enter any other value at this point Raising or lowering of the lift to a defined pos...

Page 84: ...me temperature it is advisable to set an initial temperature to which the system is heated as early as start ing in the configuration of the 774 Oven Sample Processor In the method you can then select the initial temperature with parameter init The oven heater is switched off if off is the first parameter Using the time interval as the second parameter you can modify the heat ing rate in order to ...

Page 85: ...os can be defined as well as method specific dosing and filling speeds This can also be done within a sequence with the corresponding DEF command More info about Dosino commands and port assignments is found on page 91ff The changer recognizes automatically whether a Dosimat or a Dosino is connected SCAN 1 SCAN sample sequence 7 SCN Rm Ready1 Rm RS Ready1 End1 Cond ok Cond 737 no error 8 Bit 1 0 o...

Page 86: ...an be chosen The asterisk may be used as a wildcard for an arbitrary character or character string If is to be interpreted as an ASCII character has to be set A wildcard may be used in any position of a character string If the first part of character string is correctly identified the first appearance of the character following the asterisk is scanned When it is found the next part of the characte...

Page 87: ...ration instrument via the activate line special Metrohm cable required ENTER simulates pressing of the ENTER key of a Coumeter or Titrino INIT resets all output lines of the Remote socket to 0 zero Setting particular bit patterns allows flexible control of connected instru ments Here the following is valid 0 line inactive 1 line active do not change line state Example 1 Output line 0 active start ...

Page 88: ... the start of a method Se A T E ON status message during an error condition To be consistent the corresponding AutoInfo messages should also be switched off again in a final sequence OFF Detailed information about the syntax of the Metrohm remote control lan guage can be found in Chapter Operation via the RS 232 interface page 99 or in the instruction manual of your instrument Please keep the synt...

Page 89: ...y The first pa rameter stands for the number of the dosing unit and the second parameter allows setting the filling speed in ml min sample sequence 16 LIFTRATE 1 12 mm s 1 3 12 mm s Lift rate The first parameter of this command defines the lift on which the command is to be executed Since the 774 Oven Sample Processor is equipped only with Lift 1 it is not practical to enter any other value at thi...

Page 90: ... The four ports 1 4 of every 700 Dosino can therefore each be designated a func tion The second parameter determines the function of the associated port dos Dosing occurs via the corresponding port fill Filling always from the corresponding port rinse Before changing the dosing unit the burette will be filled from this port prep Tubing will be filled from this port during a preparation cycle The r...

Page 91: ...010 run number 1 method 756Pump oven temp 120 0 C lowest temp 120 1 C highest temp 124 8 C mean gas flow 59 0 mL min Å Report identification sr short report Å Report title with device number and program version Å Sample number Å Method name Å Mean oven temperature Å Minimum oven temperature Å Maximum oven temperature Å Mean gas flow rate The values listed each refer to the part sequence currently ...

Page 92: ...75 C temp correction 0 C rack definitions number code type 1 000001 M36 0 work position 88 mm rinse position 48 mm shift position 0 mm special position 0 mm position special beaker 1 8 36 0 0 0 0 0 0 0 dosing units default values tube max rate length diameter 1 160 mL min 1000 mm 2 0 mm 2 160 mL min 250 mm 2 0 mm 3 160 mL min 1000 mm 2 0 mm 4 160 mL min 30 mm 2 0 mm changed values no tube max rate...

Page 93: ...s rack number 0 lift rate 1 12 mm s lift rate 2 12 mm s shift rate 20 shift direction auto on beaker error MOVE timeout settings HEATER timeout 20 min on HEATER timeout STOP SCAN timeout 20 min on SCAN timeout error gas flow unit gas flow mL min min flow 50 mL min max flow 100 mL min gas type air dosing unit def manual stop CTL Rmt CTL RS232 FLOW OFF HEATER INIT C Å Report identification pa parame...

Page 94: ...menu Only one report can be defined at any one time This report is printed at the end of each sequence also in the start and final sequence The report can also be transferred to a personal computer or to an LIMS Laboratory data Information Management System instead of output to printer For this purpose the computer can be connected in place of a printer to the RS232 interface In this case you must...

Page 95: ...o the initial position This activates unique recognition of the rack and thus the correct position table When a sample series is started the changer automatically moves the rack first to initial position so that it is always ensured that the beaker positions correspond to the internal position table of the relevant rack The standard racks provided by Metrohm are already equipped with a pre defined...

Page 96: ...fined types The placeholder xx stands for the number of sample beakers in a rack The numerical code y is reserved for special racks unused as yet User defined rack types can be created with a suitable PC software and intro duced into the instrument via the serial interface The name of the rack type may be chosen at will this way The Work position determines the height of the lift head the position...

Page 97: ...rrupting or obstructing the sequence of the sample series Special beakers may be used to sched ule special functions for a conditioning vessel Special beakers are placed under the lift with MOVE 1 spec 1 Reserved special beaker positions that can be individually defined for each rack are recognized as such in a sample series and are omitted during processing of the individual sample beakers If a s...

Page 98: ...anging this units the stop cock of the burette must be driven to the exchange position Otherwise the stop cock or the drive unit of the Do simat or Dosino may be seriously damaged Always execute the DOS XX release command before removing the burette Dosimats and Dosinos can aliquot any volume of e g auxiliary solutions desired up to 999 mL in LEARN mode up to 5 burette volumes Filling the burette ...

Page 99: ...absorber tube filled with desiccant Port 1 is situated on the side and under standard operating conditions is de fined as the dosing outlet Port 2 is situated on the bottom generally defined as a filling inlet and is usu ally fitted with a stand pipe Port 3 is situated on the side and not defined in standard operation Port 4 is situated on the bottom and during standard operation is defined as an ...

Page 100: ...operation Dosing DOS XX yyy yy mL Dosing a certain volume The volume indicated is ejected at the dosing port The burette is not refilled after every operation The dosing port can be redefined as desired dosing unit def XX dosing port Y or DEF DRIVE PORT XX Y dos Filling DOS XX fill mL Filling the Dosino burette The burette is completely filled It is aspirated via the filling port This can be redef...

Page 101: ... entire tubing and burette volume is emptied via dosing port Air will be aspirated via port 4 from the reserve bottle However this can be changed with the following commands dosing unit def XX drain port Y or DEF DRIVE PORT XX Y drain Release exchange unit DOS XX release mL Prepare Dosino for removing the exchange unit Before removing the exchange unit the burette must be filled and the Dos ino st...

Page 102: ...s com pensated This command is important for exact pipetting when small vol umes are aspired into the pipetting tube and ejected again First the con tent of the cylinder is ejected completely eject then before the solution is aspired the piston is adjusted adjust Level DOS XX level mL Compensate the play The mechanical play between the dosing piston and the spindle is com pensated after the cock h...

Page 103: ...g with Metrohm instruments with the standard cable 6 2141 020 is normally resolved in the following manner 774 Metrohm instrument 774 Metrohm instrument Output 0 Input 0 Input 0 Output 0 Output 1 Input 1 Input 1 Output 1 Output 2 Input 2 Input 2 Output 2 Output 3 Input 3 Input 3 Output 3 Output 4 Input 4 Input 4 Output 4 Output 5 Input 5 Input 5 Output 5 Output 6 Input 6 Input 6 Output 6 Output 7 ...

Page 104: ...to the effective state of the input lines for example the status of the ready line for catching the end of a de termination with a Coulometer An 8 place bit pattern must be set for this Every bit is assigned to an input line If there is correspondence method processing will continue with the next command line During manual opera tion the SCAN command serves as a status display of all input lines I...

Page 105: ...1 000 cable required ENTER 1111 simulates the ENTER key of Titrinos or a 756 Coulometer With the START and STOP commands a short pulse 200 ms is emitted Manual stop options Parameter Bit Pattern Function STOP device1 1 stops device1 for ex Titrino Coulometer With the STOP command a short pulse 200 ms is emitted SCN Command Parameter Bit Pattern Function Ready1 1 queries ready state of device1 Titr...

Page 106: ...5 Detailed description 774 Oven Sample Processor Instructions for use 100 ...

Page 107: ... understand Thus e g for the selection of the dialog language the following must be sent Config Aux Language english whereby it is sufficient to only transmit the boldface characters thus C A L english The quantities of the commands above are Config configuration data Aux auxiliaries various data Language setting the dialog language The data are hierarchically structured tree form The quantities t...

Page 108: ...They may contain up to 24 ASCII charac ters Numerical values can contain up to 6 digits a negative sign and a decimal point Numbers with more than 6 characters are not accepted more than 4 decimal places are rounded off For numbers 1 it is necessary to enter lead ing zeros Entering the dialog language C A L english correct entry of numbers 0 1 incorrect entry of numbers 1 5 or 3 or 1 The current o...

Page 109: ...d at all locations on the object tree Examples Querying the value of the baud rate Config RSSet Baud Q Querying all values of the node RSSet Config RSSet Q Querying the path of the node RSSet Config RSSet Q P Start mode Mode G Querying the detailed status D 5 9 4 Status and Error Messages In order to have an efficient control by an external control device it must also be possible to query status c...

Page 110: ...ument processing an assembly command Status conditions of the global H H Mode The status conditions of the global H are identical with the ones of the global G 5 9 5 Error Messages Errors Fatal Instrument Errors E1 Incorrect program check sum E2 RAM read write error E3 RAM lost data E4 Timer interrupt for multi tasking missing E5 RS232 module test error E6 RS232 read write error E7 Display read wr...

Page 111: ...r at least 3 s with XOFF Exit send XON or QUIT E44 The RS interface parameters are no longer identical for both instruments Re set E45 The receive buffer of the instrument contains an incomplete command LF missing Transmission is therefore blocked Exit send LF or QUIT E50 E59 I O Test error E60 E82 RS232 Test error Device specific errors E121 Measuring point list full E137 Method memory full E154 ...

Page 112: ...ram Detailed Description of the Main Branches 5 10 2 Mode Object Description Input range Reference Root Mode Method parameters G S H C 5 11 1 1 Method Method name 8 ASCII characters 5 11 1 2 SmplNo Number of samples in a series 1 999 Rack 5 11 1 3 StartSeq Start sequence 5 11 1 4 1 Line number of the command Cmd Command nop MOVE LIFT 5 11 1 5 SAMPLE HEATER DEF FLOW DOS SCAN CTRL WAIT RACK 100 Sequ...

Page 113: ...tion Reaction to timeout cont STOP STime SCAN timeout off 0 999 SAction Reaction to timeout cont ERROR Gas Gas flow settings 5 11 1 12 UnitFlow Unit of gas flow display mL min L h MinFlow Minimal gas flow 0 999 MaxFlow Maximum gas flow 0 900 999 Select Type of carrier gas Air others N2 Otherfac Factor for other gases 0 001 1 9 999 DosimatSet Settings for dosing unit 5 11 1 14 DosUnitNo Dosing unit...

Page 114: ... 5 11 2 4 Code Rack code 000001 b 111111 b Type Rack type M36 0 M12 0 M14 0 WorkH Work position 0 100 mm RinseH Rinse position 0 100 mm ShiftH Shift position 0 20 mm SpecialH Special position 0 100 mm SpezBeak Special beaker positions 5 11 2 5 1 Special beaker 1 Pos Beaker position 0 number of rack pos 8 Special beaker 8 Pos Beaker position 0 number of rack pos PosTab Position table 5 11 2 6 Idx I...

Page 115: ...ameter 0 1 2 20 mm 4 Port number 4 5 11 2 10 MaxRate Max dosing rate 0 01 160 ml min Length Tubing length 0 1000 30000 mm Diameter Tubing diameter 0 1 2 20 mm Rsset RS232 Settings G 5 11 2 11 Baud Baud rate 300 600 1200 5 11 2 12 2400 4800 9600 DataBit Number of data bits 7 8 StopBit Number of stop bits 1 2 Parity Parity even odd none Handsh Handshake Hws HWfull SWchar SWline none CharSet Characte...

Page 116: ...ow Gas flow rate read only Lift Lift station 5 11 3 6 1 Lift 1 Exist Availability read only MaxHeight Max stroke path read only ActHeight Current lift position read only Beaker Presence of beaker read only 2 Lift 2 Exist Availability read only MaxHeight Max stroke path read only ActHeight Current lift position read only Beaker Presence of beaker read only Rack Sample rack 5 11 3 7 Code Rack ID cod...

Page 117: ...ead only 12 Dosing unit 12 State State read only Position Piston position read only Cock Cock position read only Type Type of dosing drive read only Volume Burette volume read only Inputs Input lines 5 11 3 14 Status Status input lines read only d Outputs Output lines 5 11 3 15 Status Status output lines read only d Display LCD display 5 11 3 16 L1 Text line 1 read only L2 Text line 2 read only Co...

Page 118: ... on off Delete Lock deletion on off Display Lock display function on off Mode Setting the waiting time StartWait Waiting time after start on off 5 11 4 6 SendMeas Automatic message for meas values Sendstatus Switch on off on off 5 11 4 9 Interval Sending interval 1 4 999 Meas Measuring point 5 11 4 8 CyclNo Send cycle number on off OvenTemp Send temperatur on off GasFlow Send gas flow rate on off ...

Page 119: ...ct Description Input range Reference Root UserMeth User defined methods FreeMemory Memory available read only 5 11 5 1 Recall Load method G 5 11 5 2 Name Method name 8 ASCII characters Store Save method G Name Method name 8 ASCII characters Delete Delete method G Name Method name 8 ASCII characters DelAll Delete all methods G List List of methods 5 11 5 3 1 Method 1 Name Method name read only Byte...

Page 120: ...empty eject adjust level Scan Scanning the interfaces G S 5 11 6 7 Address Selection of interface Rm RS Pattern Input signal or data for Rm Remote 8 x 1 0 or bin ready1 end1 Cond ok Cond 737 no error for RS RS232 14 ASCII characters Ctrl Interface control G 5 11 6 8 Address Interface selection Rm RS Pattern Output signal or data for Rm Remote 14 x 1 0 or bin START device1 START dos1 STOP device1 S...

Page 121: ... H ContrastTest Test display contrast G S KeyTest Keyboard test G S IoTest Test input output lines G S RsTest Test RS232 interface G S EbusTest Test Ebus interface G S BeeperTest Test beeper G S RackcodeTest Test rack code G S FunctionTest Metrohm internal test SimulateKey Key code simulation 0 1 6 8 31 5 11 7 3 InstrNo Instrument number Not accessible via RS232 5 11 7 4 OvenTest Test heater G S 5...

Page 122: ... the command of the indexed command line in a start sequence The introduction of a command appends the according sub branch from Assembly see page 128ff to the index node A NOP entry cuts the appended sub branch from the index node Each entry at the end of a sequence appends a new node Mode StartSeq Cmd NOP 5 11 1 5 Mode StartSeq 1 Move Lift Sample etc up to 100 Heater Def Flow Dos Scan Ctrl Wait ...

Page 123: ...ith the short result report The time interval in seconds between the measuring points defines the node TDelta 400 measuring points are pos sible see 5 11 3 2 5 11 1 11 Mode Changer RackNo 0 16 Mode Changer L1Rate 3 12 mm s Mode Changer L2Rate 3 12 mm s Mode Changer ShRate 3 20 w s Mode Changer ShDir auto Mode Changer ModeSample MOVE display Changer settings RackNo Rack number forces the use of the...

Page 124: ...0 01 160 ml min max Mode DosimatSet 1 FillRate 0 01 160 ml min max Mode DosimatSet 1 DosTube 1 4 Mode DosimatSet 1 FillTube 1 2 4 Mode DosimatSet 1 ExchTube 1 2 4 Mode DosimatSet 1 PrepTube 1 4 Mode DosimatSet 1 EmptyTube 1 4 etc until 12 Dosing unit settings DosUnitNo Number of current dosing unit DosRate Dosing speed FillRate Filling speed DosTube Dosing outlet of 700 Dosino FillTube Filling inl...

Page 125: ...e initial temperature of the oven control is set on power up of the unit When the maximum temperature is reached this aborts the running method and the RS error message E165 The temperature correction varies the preset temperature for the oven con trol i e it also influences the control algorithm 5 11 2 3 Config RackDef RackNo 1 16 Rack number 5 11 2 4 Config RackDef Code 000001b 111111b Config Ra...

Page 126: ...row 1 for the beaker test R2Off Offset in 1 10 angular degrees for the beaker positions in row 2 for the beaker test Num Number of rack positions 5 11 2 8 Config PosTab 1 Value 0 3599 bis 200 Value Angular offset for the particular rack position in tenth of angular degrees 1 10 degrees Definition of new rack types The definition of rack types is only possible via RS232 interface Set table index se...

Page 127: ...5 11 2 11 Config RSset G G effects all the RS settings Modifications are only possible in inactive in strument state After setting the interface parameters wait for 2 sec to allow the components to equilibrate 5 11 2 12 Config RSset Baud 300 600 1200 2400 4800 9600 Config RSset DataBit 7 8 Config RSset StopBit 1 2 Config RSset Parity even odd none Config RSset Handsh HWs HWfull SWchar SWline none ...

Page 128: ...Time bzw 10 ErrNo Up to 10 error messages per sequence are stored in the error list Besides the instant of occurrence from the start of the sequence in seconds the error number see RS error list Page 104 is also stored 5 11 3 4 Info Results TempSet read only Info Results LowTemp read only Info Results HighTemp read only Info Results Gasflow read only Info Results Lowflow read only Info Results Hig...

Page 129: ...5 11 3 9 Info ActualInfo Pump State read only Current pump state on off 5 11 3 10 Info ActualInfo OutHeater State read only Current status of the outlet heater of the transfer hose on off The outlet heater is on when the oven control is activated i e as soon as a HEATER command is triggered either manually or in a sequence The outlet heater is also activated on switch on if an initial temperature ...

Page 130: ...ut3 active active low inactive high See also page 121ff 5 11 3 15 Info ActualInfo Outputs Status read only Status of the output lines Output0 13 of Remote interface See 5 11 3 14 5 11 3 16 Info ActualInfo Display L1 read only Info ActualInfo Display L2 read only Text of the first and second line of the LCD display 5 11 3 17 Info ActualInfo Counter Sample read only Info ActualInfo Counter Maximum r...

Page 131: ...lues that have been edited All paths are sent absolute i e from the root 5 11 4 4 Setup Trace on off The instrument automatically reports when a value has been confirmed with ENTER Message e g Config Aux Language english The beginning of the message is marked with a space ASCII 32 5 11 4 5 Setup Lock Keyboard on off Setup Lock Config on off Setup Lock Parameter on off Setup Lock UserMeth Recall on...

Page 132: ...matically see above 5 11 4 9 Setup AutoInfo Status on off Setup AutoInfo P on off Setup AutoInfo Ch G on off Setup AutoInfo Ch GC on off Setup AutoInfo Ch R on off Setup AutoInfo Ch S on off Setup AutoInfo Ch H on off Setup AutoInfo Ch C on off Setup AutoInfo Ch B on off Setup AutoInfo Ch F on off Setup AutoInfo Ch OM on off Setup AutoInfo Ch CM on off Setup AutoInfo Heater T on off Setup AutoInfo...

Page 133: ...s will be set to de fault error messages will be deleted 5 11 4 13 Setup InstrNo Value 8 ASCII characters Device number Essential for service purposes The device number must not be altered 5 11 5 UserMeth 5 11 5 1 UserMeth FreeMemory read only Q queries the size of free memory in bytes available for user methods 5 11 5 2 UserMeth Recall G UserMeth Recall Name 8 ASCII characters UserMeth Store G Us...

Page 134: ...ft Station 1 2 Assembly Lift Way rest work rinse shift special 0 325 mm Move lift Station Selection of lift station both lifts Way absolute lift position Assembly Lift G triggers this function 5 11 6 4 Assembly Heater G Assembly Heater Temp Init off 50 250 Assembly Heater Time blank 1 999 Temperature control Temp Target temperature in C Time Heating interval in minutes Assembly Heater G triggers t...

Page 135: ... Signal or data transmission via interfaces Address Interface selection Remote RS232 Pattern Signal or character string With the Remote interface predefined bit patterns may be applied using the short names listed above see page 99ff 5 11 6 9 Assembly Def G Assembly Def Object DOSRATE FILLRATE LIFTRATE SHIFTRATE DRIVE PORT Assembly Def Address depending on object Assembly Def Value depending on ob...

Page 136: ...est Working memory test LcdTest Display test ContrastTest Display contrast test KeyTest Displays key code and function of each key IoTest Remote interface test RsTest This function is not applicable via RS232 interface EbusTest External Bus interface test BeeperTest Test of the acoustic signal only with Config Beeper on see 4 10 2 14 RackcodeTest Test of rack code recognition FunctionTest Metrohm ...

Page 137: ... may be used to couple the changer with foreign devices The cable shield must be properly grounded on both instruments pay attention to current loops al ways ground in a star head formation Only plugs with sufficient shielding may be used for example METROHM K 210 0001 with K 210 9004 5 12 2 Handshake Software Handshake SWchar Handshake inputs on the changer CTS DSR DCD are not checked Handshake o...

Page 138: ... device Software Handshake SWline Handshake input ports on the changer CTS DSR DCD are not checked Handshake output ports DTR RTS are set by the changer The changer has an input buffer which can accept up to 80 characters CR LF As soon as an LF is recognized the changer sends an XOFF After this it can receive and save a maximum of 6 characters The character string previously sent is now processed ...

Page 139: ...mission can be stopped by external instruments with XOFF After XOFF is received the changer completes sending the line already started If data output is disabled for more than 3 s by XOFF E43 appears in the display Hardware Handshake HWs 774 Oven Sample Processor as Receiver Time DTR LF RxD RxD external device Sample Changer DTR 774 Oven Sample Processor as Sender Time RTS RTS LF TxD TxD CTS CTS e...

Page 140: ... inputs are checked handshake outputs set 774 Oven Sample Processor as Receiver Time DTR LF RxD RxD external device Sample Changer DTR 774 Oven Sample Processor as Sender Time RTS RTS LF TxD TxD CTS CTS DSR DCD DSR DCD external device Sample Changer The data flow can be interrupted by deactivating the CTS line ...

Page 141: ...tion The level of the received signal is within the tolerance range remote station is ready to send data Data Terminal Ready DTR ON condition Instrument is ready to receive data Pin 2 Transmitted Data Pin 3 Received Data Pin 4 Request to Send Pin 5 Clear to Send Pin 6 Data Set Ready Pin 7 Signal Ground Pin 8 Data Carrier Detect Pin 20 Data Terminal Ready Protective earthing Direct connection from ...

Page 142: ...the printer set to on line Are baud rate data bit and parity set identically on both instruments Is the handshake set properly No data transfer occurs and an error message appears in the display E40 42 Transmission error Is the cable used correctly wired and plugged in Is the printer switched on and set to on line E43 Data output disabled for more than 3 s by XOFF E36 39 Receive error Are the RS23...

Page 143: ...ched on changer not ready The changer is unable to execute the selected command since it is busy executing another action or since the se lected position cannot be approached changer overload Load too high or excessive mechanical resistance for per forming the selected action Dos ext bus failure An unforeseen error or fault has occurred on a device Do simat or Dosino connected to the external bus ...

Page 144: ...sample rack raise lift first Unable to execute a rotary movement of the rack since the lift is located beneath the defined rotary position RS232 error xx A data transfer error has occurred It may be the case that the transfer parameters of the RS232 interface do not corre spond to those of the receiving device SCAN timeout The connected device has not sent the expected signal within the defined ti...

Page 145: ...sages 774 Oven Sample Processor Instructions for use 139 trap error xxx Unforeseen program error Switch the unit off and back on again No display LEDs light LCD error system error 7 Inform your servicing technician ...

Page 146: ...t speed adjustable 3 12 mm s Turntable Rotary speed Adjustable 3 20 angular degrees second Oven Temperature range 50 250 C Correction range 10 10 C Heat output 82 W Heating rate 50 150 C 15 C min Materials Oven block Aluminium Cover PTFE Inner sleeve Chromium steel Pump Pump delivery 0 300 mL min resp 0 18 L h Inert gas max input pressure 1 bar RS232 For computer or printer connection interface pr...

Page 147: ...ecified otherwise Safety specification Design and testing in accordance with IEC 1010 EN 61010 UL 3101 1 safety class I Enclosure IP 22 The Instructions for Use contain information and warnings which must be followed by the user in order to guarantee safe operation of the unit Electromagnetic compatibility EMC Emitted interference This unit complies with the Basic Specifications EN 50081 1 2 1992 ...

Page 148: ...he unit may under certain circumstances lead to malfunctions and a shorter service life of the mechanical and electronic systems of your unit which are robust in themselves Heavy soiling may lead to influencing of measurement results Regular cleaning of exposed parts can largely prevent this Spilt chemicals and solvents should be removed immediately Above all the connector strips in particular the...

Page 149: ... serial number rear side of the unit see Page 5 and program version see configuration Page 63 and possibly the text on the error or fault display Procedure The following test list lists all components for which detailed instructions di agnosis steps exist in order to check their operability If an error occurs we recommend that you follow the instructions of the cor responding diagnosis step or run...

Page 150: ...enu with ENTER diagnosis RAM test Move one menu item down or up with Ï or Ð diagnosis display test Move to the first resp last menu item with HOME or END diagnosis display contrast test Return to basic state with QUIT diagnosis key test diagnosis remote test diagnosis RS232 test diagnosis external bus test diagnosis beeper test diagnosis rack code test diagnosis function test diagnosis instrument ...

Page 151: ...matically through a test run for optical checking of the LEDs and the display All LEDs blink consecutively for a brief period The background lighting of the display is switched off for a short period and back on again The power up test pattern each pixel active is displayed Both lines of the display are cleared Both lines of the display consecutively display characters H and lastly I Both lines di...

Page 152: ...isplay e g the following display must be shown when you press key CONFIG key test code 4 CONFIG You can quit the test by pressing key STOP twice Key table 6 4 6 Remote interface This diagnosis step allows you to check all outputs 14 and inputs 8 for operability Prepare the unit for diagnosis see Chap 6 4 2 If necessary press Ð several times until Code Key Code Key 1 HOLD LEARN 16 7 SAMPLE 2 STOP 1...

Page 153: ...allows you to check all outputs and inputs for operabil ity Prepare the unit for diagnosis see Chap 6 4 2 If necessary press Ð several times until diagnosis RS232 test ENTER RS232 test RS232 test connector Connect the test connector 3 496 8480 to socket RS232 without switch ing the unit off ENTER The test runs automatically If no error occurs the following is displayed RS232 test RS232 test ok Dis...

Page 154: ...pe 3 address 0x92 type 3 Dos 5 8 729 address 2 address 0xA1 type 3 address 0xA2 type 3 Dos 9 12 729 address 3 address 0xB1 type 3 address 0xB2 type 3 external bus test address 0x86 type 3 Press ENTER several times and compare the display with the above list until diagnosis beeper test 6 4 9 Beeper Prepare the unit for diagnosis see Chap 6 4 2 If necessary press Ð several times until diagnosis beep...

Page 155: ...t reads in the coding constantly and displays it A six digit bit pattern code is scheduled for this for the display The first digit for magnet No 1 the second digit for magnet No 2 etc If a magnet is detected the corresponding digit is assigned 1 Otherwise it is as signed 0 Consecutively fit all racks to be used and compare the related note which you made beforehand with the information on the dis...

Page 156: ...ontents of the data memory If the data memory has undefined contents this may lead to a system crash The 774 Oven Sample Processor offers various options for initialising the data memory Either the entire memory all or only parts of it param config setup assembly may be assigned default values Even though the device number is retained in this case you should ini tialise only when necessary since t...

Page 157: ...rs to default values Erases all user defined methods The sub menus can be selected one after the other by pressing key Se lect You can access the individual initialisation variants with key ENTER and you can quit with key QUIT The table shows what parts of the data memory are affected by the corre sponding initialisation variants In the case of a system crash undefined display no responses to keys...

Page 158: ...the user to check the function of specific modules and localise the error or fault in the event of any faults or incorrect re sponses occurring Diagnostic routines may also be integrated in a valida tion procedure Please refer to the Metrohm Application Bulletins 255 1 Validation of Metrohm KF Titrators and KF Ovens according to GLP ISO 9001 and 273 1 Validation of Metrohm KF Coulometers according...

Page 159: ... an anisole or xylene basis 1 00 mg resp 0 10 mg water mL for validation of a 774 Oven Sample Processor at lower temperatures 150 C The oven temperature must be lower than the boil ing point of the solvent used Recommended settings Oven temperature 120 C Gas flow Approx 60 mL min Sample size Approx 1 g ...

Page 160: ... ab sence of guaranteed features the orderer has no rights or claims except those mentioned above If damage of the packaging is evident on receipt of a consignment or if the goods show signs of transport damage after unpacking the carrier must be informed immediately and a written damage report demanded lack of an official damage report releases Metrohm from any liability to pay compen sation If a...

Page 161: ...50081 Electromagnetic compatibility basic specification Emitted Interference EN 50082 Electromagnetic compatibility basic specification Interference Immunity EN 61010 Safety requirements for electrical laboratory measurement and control equip ment Description of the instrument Sample changer with integrated heating block for the automation of batch processing of larger sample series in analytical ...

Page 162: ...4 IEC 801 5 level 2 3 IEC801 6 level 3 EN55011 Class B EN55022 Class B EN50081 1 2 1992 EN50082 1 2 1997 1995 EN61000 3 2 1995 EN61000 3 3 1995 EN61000 4 11 IEC61326 1 1997 Security specifications IEC1010 EN61010 UL3101 1 It has also been certified by the Swiss Electronics Association SEV which is member of the International Certification Body CB IEC The technical specifications are documented in ...

Page 163: ...pe NEMA ASA USA 6 2122 070 Stopper SGJ14 8 mm 6 1446 170 FEP tubing M6 44 mm 6 1805 470 FEP tubing M6 7 mm 2 ea 6 1805 520 Insert for drying flask 6 1602 145 Glass bottle 6 1608 090 Molecular sieve 250 g 6 2811 000 Inlet Outlet tube with filter 6 1821 050 Heatable transfer hose 6 1830 010 Sample rack M36 0 6 2041 700 Septum tweezers 6 2621 110 Dust filter 32 mm 6 2724 010 Wrench for nipple M6 6 27...

Page 164: ...no 756 Coulometer 6 2141 020 Remote cable 774 737 Coulometer 6 2141 000 RS232 cable 774 756 Coulometer 6 2125 110 Sample vials Vials 6 mL Head Space Vials 1000 ea 6 2419 000 Septum caps 1000 ea 6 1448 050 with aluminium cover and PTFE insert Dosing instruments 729 Dosimat Interface 2 729 0010 685 Dosimat 2 685 0010 Mains cable 6 2134 000 700 Dosino 2 700 0010 ...

Page 165: ... adjusting the sample rack 13 air inlet 73 93 Air N2 12 appendix 137 application possibilities 1 application range 1 arranging the accessories 11 asterisk 80 98 automatic rack recognition 90 automatic reports 88 automation system 15 B basic settings 23 Baud Rate 66 beaker positioning 76 beaker sensor 6 beaker sensor 64 beaker test 6 beeper 63 bit pattern 32 80 98 blank determination 40 blank value...

Page 166: ...handshake 133 Head Space Vials 89 heat output 140 HEATER command 38 51 78 HEATER function 31 HEATER timeout 71 HEATER 74 78 heating rate 140 heating up time 31 HOLD state 58 hollow injection needle 11 HP 21 I IBM Proprinter 21 inactive 99 individual key functions 45 inert gas connection 13 infrared beaker sensor 6 INIT 99 initial temp 64 initial temperature 37 64 initialise data memory 150 initial...

Page 167: ...valve 38 relative humidity 141 release 79 95 Remote connections 16 Remote control tree 106 Remote interface 32 97 replacing fuse 9 report type 70 report 70 reserved positions 91 RESET 23 reset sample rack 82 residual moisture 41 result report 70 rinse 84 rinse position 65 90 rinsing 73 rinsing inlet 73 rinsing position 40 Rmt CTL 74 rod magnets 7 roll up selection 59 rotary knob 39 rotate the rack...

Page 168: ...acing 57 tracing a method 35 transmission speed 66 transmit 32 transportation 141 triggers 103 tube diameter 1 66 tube length 1 66 turn rack 46 turning direction 55 70 83 turning speed 55 70 83 turntable 89 txt entry 56 type 90 type 64 U unit gas flow 72 upper limit 39 upwards 30 user defined methods 75 user method menu 45 user method report 85 V validation 152 valve 31 78 voltage setting 8 volume...

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