SRG-3 Spinning Rotor Gauge RS232 Interface User Manual
Contents
1. 0 0 Standard display 0 1 Measured value aux ch 1 0 2 Measured value aux ch 2 2 4538E 03 mbar gt 2 4538E 03 mbar gt 2 4538E 03 mbar 9s 439Hz Ar 0 2462V Aux1 2 4579E 03 Aux2 V 1 0 Raw value and signal level 1 1 Offset used for measured value 1 2 Zero adjustment options 1 1439E 04 1 s gt Zero Offset gt Zero Adj Mean 8s 438Hz 10 4dB 0 0000E 00 mbar 2 4535E 03 mbar dk a ENTER Select option Off Curr Mean V 2 0 Printout status 2 1 Print options Print Off 14 gt Print Omin 10 of 10 Cont vn ENTER Select option Off Next Cont Setup Diagn vn 3 0 Trigger status 3 1 Analog output status Trig SP1 off gt Aout 2 00V Dec RDY on SP2 off 8 293V V 4 0 Date error count oper hours 4 1 Error history 4 2 Error history options 2007 09 07 12 36 gt Last Err 11 gt Error History 5 4 Default adjustment 5 5 Suspension adjustment 4Errs 398h 2007 09 07 10 23 Print Defaulting Adjusting van A ENTER Bias 0 000V Bias 0 947V Scroll through error history Select option Print Erase V 3 Err 21 A 09 ENTER 2007 09 05 14 17 Select option Default Suspension Drive Save 5 0 Version serial number 5 1 Damping level 5 2 Suspension diagnostics 5 3 Head adjustment menu SRG 3 V1 0 0 gt Damp A 45dB gt Susp 0 006V gt Head Adjust Head Adjust L S N G500305G40 B 48dB Servo 0 8107V D2. Page Eject On Aux Power Off
3. Example RS 232 INTERFACE SRG 3 Channel 1 Offset AO1 AO1 Returns the offset of auxiliary input channel 1 x AO1 Enter the offset x 1E30 to 1E30 for channel 1 This value biases the linear scaled input Vn R displayed reading R AS1 Vii AOT AM1 AS1 IN1 aol query aux channel 1 offset 1 aml temperature input 101 asl sensitivity 10 mV K 0 21 aol adjust zero 0 C Auxiliary Channel 2 Offset AO2 Syntax AO2 Returns the offset of auxiliary input channel 2 x AO2 Enter the offset x 1E30 to 1E30 for channel 2 This value biases the linear scaled input Vine R displayed reading R AS2 Vio AC2 Related AM2 AS2 IN2 Example ao2 query aux channel 2 offset 2 am2 pressure input 0 1 as2 full scale 1 Pa 0 0002 ao2 adjust zero Auxiliary Power APW Syntax APW Returns the auxiliary power setting 0 15V supply off 1 15V supply on 1 APW Turns the auxiliary power on 0 APW Turns the auxiliary power off Related Example apw query aux power setting 1 apw turn on power for aux channels 1 amp 2 13 RS 232 INTERFACE SRG 3 Arm Sensor Control ARM Syntax ARM Returns the state of the sensor control 0 disarmed 1 armed 0 ARM Disarms the automatic sensor control When the sensor is mounted nothing occurs 1 ARM Arms the automatic sensor control and performs a sensor check by forcing the sensor to the lower and upper position If present the sensor is levitated and measur
4. 1 OVR Output override mode 0 OVR Normal output mode RCO n Query remote control outputs n RCO Set remote control outputs RLY n Query relay status n RLY Set relays Diagnostics Argum Cmd Reply Description ACL X Acceleration factor CAL X Calibration factor COR X Correction factor DMP X Damping level A B 1 DMP X Damping level A 2 DMP X Damping level B IRS Instrument reset ISP X Initial speed RDS n Rotor detection status RSP X Rotational speed SGL x Signal level TST n Query test mode 2 TST Perform signal statistics 1 TST Enter test mode 0 TST Exit test mode RS 232 INTERFACE SRG 3 Head Adjustment Argum Cmd Reply Description HDA y m d h m Timestamp of last adjustment save 0 HDA Reset adjustments 1 HDA Levitation adjustment 2 HDA Motor adjustment 9 HDA Save adjustment in EEPROM 5 SRG 2CE COMPATIBILITY The following SRG 2CE aliases are provided for compatibility Aliases Argum Cmd Reply Description n CAP n Alias of BGA n 0 2 n CPT Alias of ZAD n 0 2 x DB1 x Alias of AO1 x DB2 x Alias of AO2 x DF1 x Alias of AS1 x DF2 x Alias of AS2 n FN1 n Alias of AM1 n FN2 n Alias of AM2 n HDO y m d h m Alias of HDA x SIN x Alias of MTI The following SRG 2CE commands are recognized but not supported Unsupported Commands Argum Cmd Reply Description BAT 0 0000E 00 Battery voltage n DS1 0 Display span aux channel 1 n DS2 0 Display span aux channel 2 x RF1
5. 8 4 SETUP EE PEE 59 RS 232 INTERFACE SRG 3 1 INTRODUCTION 1 1 GENERAL Remote control via the serial interface enables full access to all instrument resources and in addition provides a set of functions not available in manual operation The interface is designed to be directly compatible to a personal computer serial port COMS 1 2 ScRIPTS A powerful feature of the SRG 3 is the support of scripting The instrument may be fully script controlled freeing the user from the burden of writing dialog programs Scripts may be prepared using a normal text editor and then transmitted to the instrument by a simple terminal utility program which in turn logs the instrument replies A number of formatting options allow logged data to be conveniently imported into spreadsheets A earn script feature is included see command LRN to assist the user in writing his own scripts for instrument setup 2 INTERFACE 2 1 CONNECTION To connect the SRG 3 to a personal computer serial port a 9 way extension cable male to female is required A null modem cable will not work The table below shows the pin assignment of the SRG 3 RS 232 connector female Note that only pins 2 3 and 5 are used the other pins are not connected Terminal Function not connected RXD data out TXD data in not connected GND not connected not connected not connected 2 3 4 5 6 7 8 9 not connected 2 2 CONFIGURATION The SRG 3 may o
6. rate Changing the baud rate remotely causes the new setting to be stored but switching of the baud rate is deferred until the next instrument reset If the baud rate is to be changed immediately an IRS command must follow the BDR on the same line Related Example bdr query stored baud rate 19200 bdr irs go to 19200 baud Calibration Factor CAL Syntax CAL Returns the calibration factor unit s for the selected unit If DCR is selected unit 0 the value is returned in Paes Note The calibration factor is calculated as CAL PRS DCR COR Related COR DCR PRS Example 1 unt select Pa 10 gas select Argon nxt cal query calibration factor of next reading Reply 2 1455E 03 16 RS 232 INTERFACE SRG 3 Command Mode CMD Syntax CMD Exits script mode see section 3 3 2 selects silent messages and resumes command execution Related SCR Example scr enter script mode 0 msg silent messages 2 use recall setup 2 ech Date dat show date ech Setup use ech from sdt show setup used sta start measurement 30 rpt nxt tim val log 30 readings stp stop rotor cmd exit script mode resume cmd execution ech Message msg show possible message Maximum Count CNT Syntax CNT Returns the maximum count for continuous printing n CNT Enter maximum count n 0 to 100 for continuous printing On reaching the maximum count continuous printing stops and the footer selected by the PFT option will b
7. 1 0000E 01 Reference voltage aux channel 1 x RF2 1 0000E 01 Reference voltage aux channel 2 The following commands are formally compatible but differ from their SRG 2CE counterparts Command Differences Argum Cmd Reply Description str DIS Flashing option not supported n KEY n Key codes not compatible 7 PRT Histogram not supported RCS Meaning of status bits 3 0 slightly different Note The SRG 3 uses a dollar sign as prefix for hexadecimal numbers while the SRG 2CE uses an ampersand amp 10 RS 232 INTERFACE SRG 3 6 COMMAND REFERENCE Accommodation Factor ACC Syntax ACC Returns the accommodation factor x ACC Enter the accommodation factor x 0 1 to 2 Related DIA DEN Example acc query accommodation factor 1 012 acc change accommodation factor to 1 012 Acceleration Factor ACL Syntax ACL Returns the acceleration factor s A used for speed control Related Example acl query acceleration factor Analog Output Full Scale AFS Syntax AFS Returns the analog output full scale value unit x AFS Enter the value for analog output full scale in the selected unit X2 10 to 10 Pa x 10 to 10 mbar x2 7 5 10 to 7 5 Torr x 10 t0 0 1 s Values entered in mbar or Torr are internally stored in Pa The stored value is not converted if the unit is changed to or from s A zero value forces the analog output to full scale 10V The output voltage Vour for a measured value p is
8. 1 mode AM2 Auxiliary channel 2 mode AC x Auxiliary channel 1 offset AO2 x Auxiliary channel 2 offset APW n Auxiliary channels power supply AS1 x Auxiliary channel 1 scale factor x AS2 x Auxiliary channel 2 scale factor Serial Comm Settings Cmd Reply Description BDR n Baud rate PRO n Prompt option CT c2 PRO User defined prompt characters Setup File Management Argum Cmd Reply Description DEF n Query default status 0 DEF Clear default status 1 DEF Default settings and set status LRN file Send learn script SDT y m d h m Timestamp of last setup change n STO Store current settings as setup file n USE n Query setup file used n USE Use setup file n Sensor Control Argum Cmd Reply 0 ARM Description Disarm sensor control 1 ARM Arm sensor control amp perform sensor check DMT Dismount sensor MNT Mount sensor RST Restart measurement SBY Standby mode STA Start measurement STP Stop sensor RS 232 INTERFACE SRG 3 Measurement Readout Argum Cmd Reply Description DCR X Deceleration rate raw value IN1 X Auxiliary channel 1 IN2 X Auxiliary channel 2 PRS X Pressure raw value REM X Remaining time until next readout VAL X Measured value Zero Adjustment Argum Cmd Reply Description ZAD X Return zero adjust value 1 ZAD Do zero adjustment 0 ZAD Undo zero adjustment Status amp Messages Argum Cmd Reply Description MLG file List logged messages 0 MLG Erase logged messages
9. 56 RS 232 INTERFACE SRG 3 8 APPENDIX 8 1 CONTROL DISPLAYS Power ON Firmware version copyright SRG 3 V1 0 0 2007 KW 2s Starting sensor f option Auto Start Off Starting mbar 10s 15Hz Ar or Idle mbar 10s OHz Ar Waiting for 1st reading ON Manual start 0 0000E 00 mbar 3s 440Hz Ar Pressure reading Printout started 2 4538E 03 mbar 10s 439Hz Ar ON 2 4538E 03 mbar 10s 439Hz P Ar POWER Stopping sensor OFF Sensor in standby mode Stopping mbar 10s 423Hz Ar Standby mbar 10s 438Hz Ar Shut down OFF OFF Stopping sensor ON Restarting sensor Stopping mbar 10s 419Hz Ar Starting mbar 10s 426Hz Ar Sensor idle Pressure reading Idle mbar 2 4538E 03 mbar 10s OHz Ar 10s 439Hz Ar Sensor idle Idle mbar 10s OHz Ar OFF Dismount gauge head Dismount mbar 10s OHz Ar OFF Disarmed autom sensor control o Dismount mbar 10s OHz Ar f 57 RS 232 INTERFACE SRG 3 8 2 MEASUREMENT MODES 5 6 Drive adjustment Sweep 16375Hz A 305mA B 298mA
10. SP1 on Related HS1 Example spi query SP1 trip point 3 unt select Torr 1 e 3 spl change SP1 trip point to 1 E 3 Torr SP2 Trip Point SP2 Syntax SP2 Returns the trip point unit of SP2 x SP2 Enter the trip point of SP2 in the selected unit X 2 10 to 10 Pa x 107 to 10 mbar X 2 7 5 10 to 7 5 Torr x 10 t00 1 s Values entered in mbar or Torr are internally stored in Pa The stored value is not converted if the unit is changed to or from s A zero value forces SP2 on Related HS2 Example sp2 query SP2 trip point 3 unt select Torr 1 e 3 sp2 change SP2 trip point to 1 E 3 Torr Start Measurement STA Syntax STA Starts measurement If necessary the sensor is mounted and driven to its operational speed USP STA runs in background Related SBY STP RST USP Example sta start measurement rpt nxt val log measured values RS 232 INTERFACE SRG 3 Store Setup STO Syntax n STO Stores the currently active settings as setup file n 1 to 15 Helated USE Example 11 sto store as setup file 411 Stop Rotor STP Syntax STP Halts measurement and stops the sensor The sensor remains mounted Idle STP runs in background Related DMT STA Example scr execute in foreground stp dmt stop rotor and dismount cmd exit foreground System Status STS Syntax STS Returns the system status and clears status bit 7 Bit Value Meaning 0 1 SP1 activated 1 2 SP2 activated 2 4 RDY activat
11. calculated as ASP 0 Mam 10V DIAES ASP gt 0 Ma 10V 1 log p AFS ASP Related ASP OUT OVR Example afs query analog output full scale 2 unt select mbar 0 1 afs set full scale to 0 1 mbar 11 RS 232 INTERFACE SRG 3 Auxiliary Channel 1 Mode AM1 Syntax AM1 Returns the mode of auxiliary input channel 1 n AM1 Selects the mode n of auxiliary input channel 1 determining the presentation of measured values 0 raw value V 1 temperature tscal 2 pressure unif 3 special no unit If set to mode 1 aux channel 1 will supply the gas temperature thereby overriding the stored setting Related AOT AS1 TMP TSC UNT Example ami query mode of aux channel 1 1 aml set up channel 1 for temperature Auxiliary Channel 2 Mode AM2 Syntax AM2 Returns the mode of auxiliary input channel 2 n AM2 Selects the mode n of auxiliary input channel 2 determining the presentation of measured values 0 raw value V 1 temperature tscal 2 pressure unif 3 special no unit Related AC AS2 TMP TSC UNT Example am2 query mode of aux channel 2 2 am2 set up channel 2 for pressure Atomic Mass Units AMU Syntax AMU Returns the mean molecular mass in u atomic mass units x AMU Enter the mean molecular mass x 1 to 1000 u and reset the gas type to 0 User Related GAS TCO USR VIS Example amu query molecular mass 44 1 amu change molecular mass to 44 1 u 12 Auxiliar Syntax Related
12. deletes last character EOT 4 discards input aborts command execution ESC 27 discards input aborts command execution ETX 3 aborts command execution HT 9 treated as a single space character 2 6 REMOTE CONTROL STATE On the first valid command the SRG 3 enters remote control state forces menu 0 0 and turns on the REMOTE LED In remote control state the control keys ENTER ON and OFF are disabled and respond with the message Key disabled when being activated The instrument can be reset to ocal control state either by sending the RTL command or manually by selecting menu 5 0 and then pressing the OFF key In critical applications where manual control must be fully disabled the keys may be locked out by sending the LLO local lockout command In local lockout mode all keys respond with the message Keys disabled RS 232 INTERFACE SRG 3 3 INSTRUMENT COMMAND LANGUAGE 3 1 SYNTAX 3 1 1 Commands Command mnemonics are not case sensitive and must be delimited by spaces or tabs Redundant delimiters are ignored Multiple commands may be written on a single line Example amu vis tco 3 1 2 Arguments Arguments required or optional must precede the command postfix notation and must be delimited by spaces or tabs Redundant delimiters are ignored Example 2008 10 16 dat Optional arguments determine the type of operation If the argument is omitted the command is a read function and sends a reply If the ar
13. enclose consecutive reply fields that are to be treated as a single string e g when importing data into a spreadsheet quo ech Sampling interval s ung sin Sampling interval s 2 0000E 01 Measurement Unit Syntax Related Example UNT n UNT UNT Returns the current measurement unit 0 s DCR 1 Pa 2 mbar 3 Torr Selects the measurement unit n 0 to 3 Note 1 If unit 0 DCR is selected pressure calculation is not performed so gas parameters are not used and need not be defined The analog output and the setpoints then relate to the DCR reading Note 2 If option 1 is selected SI units only unit settings 2 mbar and 3 Torr are not available See also command OPT AFS OPT PRS SP1 SP2 VAL unt 2 unt query unit select mbar Syntax Related Example USE nUSE STO use 7 use Returns the number of the setup file currently used If the parameters have been modified 0 is returned Use setup file n 1 to 16 Note that setup file 0 contains the active settings and thus cannot be recalled The number automatically resets to 0 when settings are modified Files 1 to 15 are assigned to user storage while setup file 16 is read only and contains the default settings query setup number use setup 7 Upper Speed Limit RS 232 INTERFACE SRG 3 USP Syntax USP Returns the actual upper speed limit in Hz x USP Enter t
14. input modes 13 1 Baud rate prompt option Gas Ar gt Accomm 1 000 gt Dispi Unit mbar gt Max Count 010 gt Setp1 1 000E 01 gt Modet Raw gt Baud 9600 AMU 039 944 le Meas Time 10 Temp Scale C E Interval 000 Setp2 1 000E 02 Mode2 Raw Prompt Std vn vn vn vn vn vn vn 7 2 Viscosity temp coefficient 8 2 Sensor diameter density 9 2 Decimal places display timeout 10 2 Header footer options 11 2 Setpoint hysteresis 12 2 Aux input scales 13 2 Prompt characters Visc 022 330 ue gt L Diameter 4 500 Dec Places Aut gt Header Opt Std gt Hys1 5 000E 02 gt Scal 1 000E 00 gt Ackn 62 gt Teo 0 0660 4 Density 7 700 Dsp Timeout 30 Footer Opt Std Hys2 5 000E 02 Scal2 1 000E 00 Nack 63 V vn vn vn V V 7 3 Destination selection 8 3 Control modes 9 3 Set clock calendar 10 3 Data column options 11 3 Analog output full scale span 12 3 Aux input offsets Save As Gas gt Upper Speed 4407 gt Date 2007 09 07 gt gt Full 1 000E 02 gt Ofs1 0 000E 00 Usr1 Lower Speed 430 Time 16 57 Data Opt Std Span B Ofs2 0 000E 00 V Vot Vot vn V 7 4 Temperature 8 4 Control modes 9 4 SI units option 10 4 Printer port auto page eject 12 4 Aux input power supply z gt Auto Start On gt gt Print Port Par Temp 0020 00 C ZA Ctrl Mode Auti Sl only Off
15. last printout Related PDA PFT Example pha query header option 0 phd no header printed Example 1 phd standard header SRG 3 Vacuum Gauge 1 0 4 Setup 14 from 2008 10 10 Date 2008 10 13 Example 2 phd column titles only Printing Interval PIN Syntax PIN Returns the printing interval min n PIN Enter the printing interval n 0 to 300 min Note The printing interval also controls the maximum count mode If set to lt 120 min the CNT value determines the total number of readings to be printed If set to gt 120 min the CNT value specifies a set of consecutive readings to be printed each time the printing interval expires see also CNT For example setting CNT 10 and PIN 60 will result in a total of 10 readings being printed at one hour intervals while setting PIN 180 will result in 10 consecutive readings printed every 3 hours until stopped by operator action 0 PIN Select printing of consecutive readings Helated ONT PRT 36 Example pin 0 pin 30 pin Printer Port Syntax Related Example PPT n PPT PRT ppt 2 ppt 0 ppt Prompt Option Syntax Helated Example PRO 1 PRO c1 c2 PRO 0 PRO pro 0 pro 6 21 pro RS 232 INTERFACE SRG 3 query printing interval print each value print a value every 30 min PPT Returns the selected printer port 0 off printing disabled 1 parallel printer port 2 serial port RS 232 Selects the printer p
16. non supported size or type or the gauge head is mounted in a way as to prevent the sensor from reaching its levitated position Make sure that you are using the correct type of sensor and that the gauge head is mounted properly Err 23 Rotor touched down A persistent overload caused a safety shutdown of the levitation controller while the rotor was spinning Possible causes are 1 A DMT command was sent before the sensor had been stopped RCS gt 3 Mind to stop the sensor before issuing the DMT command see commands RCS and STP 2 The gauge head was dismounted before the sensor had been stopped RCS 3 Mind to stop the sensor before dismounting the head see commands RCS and STP 3 The gauge head was bumped or exposed to vibration causing levitation control excitation Mount the gauge head in a way as to avoid mechanical disturbance Err 31 Drive test failed The sensor speed did not increase during acceleration test The sensor signal is most likely interfered by stray signals or by vibration picked up by the gauge head Such interference may originate from vacuum pumps operating in close vicinity Monitor the sensor signal at the SCOPE output with a spectrum analyzer or an oscilloscope to identify the problem Make sure that the signal path is free from interference If this is not possible try shifting the speed window see commands USP and LSP Err 32 Brake test failed The sensor speed did not decreas
17. rpt dmp 1 dly check damping level every second Dismount Sensor DMT Syntax DMT Turns off the levitation control causing the sensor to drop Caution DMT should only be commanded when the sensor is idle Related MNT STP Example scr execute in foreground stp dmt stop rotor and dismount cmd exit foreground Decimal Places Syntax Related Example Display Menu Timeout DPL 0 DPL nDPL FMT dpl 3 dpl RS 232 INTERFACE SRG 3 DPL Returns the number of decimal places for pressure readout Selects auto ranging mode 1 if p 10 Pa 10 mbar Torr 2 if 10 Pa 10 mbar Torr lt p lt 10 Pa 10 mbar Torr 3 if 10 Pa 10 mbar Torr lt p lt 10 Pa 10 mbar Torr 4 if p 10 Pa 10 mbar Torr Selects fixed number of decimal places 1 to 4 Note Digits rounded off are blanked when displayed and zero filled when printed Values returned by VAL and PRS however are always output with the number of decimal places set by the FMT option 4 by default query decimal places round pressure to 3 decimal places DTO Returns the timeout s for menus 1 0 to 6 4 readout menus Sets the timeout to n s 5 to 60 The value is internally rounded to multiples of 5s On timeout the display is reset to menu 0 0 Disables timeout so menus 1 0 to 6 4 may be viewed continuously Note Menus 0 1 and 0 2 are not affected by the timeout and may be viewed continuously The timeout for menus 7 0 to
18. string identifying the selected temperature scale Related ECH QUO TSC UNO Example ech T_amb tlb ech Reply T amb C Example tmp tlb Reply 2 9835E 02 K Temperature Syntax TMP x TMP RS 232 INTERFACE SRG 3 TMP Returns the actual gas temperature tscal Enter the gas temperature x in the selected temperature scale 10 to 2000 K or 263 15 to 1726 85 C Values entered in C are internally converted to K Note 1 If auxiliary channel 1 is configured for temperature AM1 1 it will supply the actual temperature and override the stored value TMP then returns the measured value Related AM1 TCO TSC VIS Example tmp Lac 24 7 tmp Temperature Scale Syntax TSC 0 TSC 1 TSC query gas temperature select C scale change gas temperature to 24 7 C TSC Returns the selected temperature scale Selects absolute temperature K Selects degrees C Note The TSC setting controls the interpretation of the TMP value and the display format of the auxiliary channels if set up for temperature Related AM1 AM2 TLB TMP Example tsc 1 tse query temperature scal select C Test Mode Syntax TST 2 TST 1 TST 0 TST Related Example tsc 1 tst Example 2 tst Reply RS 232 INTERFACE SRG 3 TST Returns the test status 0 normal mode 1 test mode Stops measurement and computes a statistics of the sensor signal comprising mean value standard as well as re
19. 13 2 setup menus is 60s and may not be changed query display timeout disable display timeout set timeout to 30s ECH Copies txt to the output This inline text may be delimited by a backslash V if not extending to the end of line No space is added for separation DAT GLB IDY NUM QUO TIM TLB ULB UNQ ch Measurement num ech dated dat Syntax DTO nDTO 0 DTO Related DIS Example dto 0 dto 30 dto Echo Text Syntax ECH txt Related Example Reply Measurement 122 dated 2008 10 12 RS 232 INTERFACE SRG 3 Example ech Pressure ulb ech Reply Pressure mbar Example quo ech Temperature tlb ech ung tmp ech tmp Reply Temperature K 2 9871E 02 tmp Real Number Format FMT Syntax FMT Returns the decimal places selected for real number output format n FMT Selects n 1 to 6 decimal places for real number output format The value applies to al real numbers transmitted by the instrument The format setting is not saved On reset the format defaults to 4 places Related DPL Example fmt query format 5 fmt output real with 5 places rpt nxt val log readings Reply 2 45308E 04 2 45310E 04 2 45311E 04 22 RS 232 INTERFACE SRG 3 Gas Type GAS Syntax GAS Returns the current gas type Gas type 0 User is returned if gas properties have been modified nGAS Selects predefined gas type n 1 to 25 The gas type numbers are assigned as follows the strings in parenthese
20. 2 u sg se ech Date dat us ch from sdt show setup used ch Setup ech Time sta RS 232 INTERFACE SRG 3 enter script mode silent messages her recall setup 42 show date Press ulb ech show column titles 5 rpt nxt tim val start measurement log 5 readings stop rotor exit script mode resume command show if successful stp cmd execution msg Reply Date 2008 10 16 Setup 2 from 2008 10 15 Time Press mbar 15 23 10 2 4530E 04 15 23 20 2 4531E 04 15 23 30 2 4531E 04 15 23 40 2 4532E 04 15 23 50 2 4531E 04 No message 3 3 3 Aborting Execution Repeat loops RPT delays DLY and statements synchronizing with events NXT may be aborted any time by sending one of the codes ESC 27 ETX 3 EOT 4 or CAN 24 The command line being processed will then be discarded and the instrument returns to command mode RS 232 INTERFACE SRG 3 4 COMMAND SET SUMMARY Legend Symbol Explanation Optional argument If present command is a write operator Conditional reply sent if command is a read function 0 1 Fixed argument denoting a command option C Ascii code file Text file hms Hours minutes seconds i Channel index n Integer number str String txt Inline text X Real number ymd Year month day Gas Parameters Argum Cmd Reply Description x AMU x Atomic mass units n GAS n Gas type x TCO x Temperature coefficien
21. MSG sir Read message 0 MSG Clear pending message amp set silent mode 1 MSG Clear pending message amp set talkative mode OPH n Operating hours RCS n Rotor control status STS n System status 0 STS Clear system status Script Flow Control Argum Cmd Reply Description CMD Command mode DLY Delay 600ms n DLY Delay n seconds NXT Wait for next reading RPT Repeat until interrupted n RPT Repeat n times SCR Script mode Output Formatting Argum Cmd Reply Description DAT y m d Date string ECH txt ixt Echo text n FMT n Real number output format GLB sir Gas label IDY str Identify instrument NUM n Return next number n NUM Set number QUO Quote SDT y m d h m Timestamp of last setup change TIM him s Time string TLB sir Temperature scale label ULB sir Unit label UNQ Unquote RS 232 INTERFACE SRG 3 Front Panel amp Power Control Argum Cmd Reply Description DIS n Query menu number n DIS Display menu str DIS Display string immediate KEY n Return next key n KEY Wait for key stroke n KEY Push key LLO Local lock out PWR n Query power state 1 PWR Power up operating mode 0 PWR Power down stand by mode SLK n Query setup lock 1 SLK Lock settings 0 SLK Unlock settings RTL Return to local control Printer Control Argum Cmd Reply Description PRT n Query print status n PRT Start print function 0 PRT Stop print function str PRT Print string immediate Direct Output Argum Cmd Reply Description X OUT Set analog output voltage
22. Printout data 0 pda Printer port 1 ppt Page eject 1 pej Outputs Setp 1 Pa 1 0000E 00 spl Setp 2 Pa 1 0000E 00 sp2 Hyst 1 5 0000E 02 hal Hyst 2 5 0000 02 bai Analog full scale Pa 1 0000E 00 afs Analog span 5 asp Aux inputs Mode 1 2 aml Mode 2 0 am2 Scale 1 1 0000E 04 asl Scale 2 1 0000E 00 as2 Offset 1 0 0000E 00 aol Offset Zi 0 0000E 00 ao2 Aux power 1 apw irn active settings 1 use Irn stored setup files 2 use lrn 29 RS 232 INTERFACE SRG 3 Lower Speed Limit LSP Syntax LSP Returns the actual lower speed limit Hz x LSP Enter the lower operational speed limit x 405 to 805 Hz The value is clipped to 5 Hz below the upper speed limit Note 1 When operating in speed control mode 2 the actual speed limits may be dynamically extended to meet the specified sampling interval When changing USP the LSP value will be adjusted automatically to retain the speed window size Related Mr SPC USP Example lsp query lower speed limit 450 usp 430 lsp select speed range 450 430 Hz Message Loc MLG Syntax MLG Returns the message log file The message log contains the last 63 messages with their timestamps If the message log is empty a no messages statement with the actual timestamp is returned see example 0 MLG Erases the logged messages Related MSG Example mig examine message log Reply 2008 10 12 08 17 Err 33 Co
23. RTL or IRS command or by switching the instrument off and on again Related RTL 27 RS 232 INTERFACE SRG 3 Example llo disable local control perform critical operations rtl enable local control Learn Script LRN Syntax LRN Returns a script file restoring the currently active settings when sent back to the instrument The script includes a header identifying the instrument and the setup file being transmitted Each setting is commented The learn script may serve as a template to set up the instrument or may be used for backup and or documentation purpose Related STO USE 28 Example Reply Example RS 232 INTERFACE SRG 3 lrn download settings Date 2008 10 08 13 27 42 SRG 3 V1 0 4 S N G500307G40 Setup 0 from 2008 10 08 12 25 Readout Display unit 1 unt Temperature scale 0 tsc Decimal places 3 dpl Display timeout s 0 dto Gas Name Ar Select gas 10 gas Temperature K 2 9315E 02 tmp Sensor Accommodation 1 0000E 00 acc Measure time s 3 0000E 00 mti Ball diameter mm 4 5000E 00 dia Ball density g cm 3 7 7000E 00 den Upper speed limit Hz 4 4000E 02 usp Lower speed limit Hz 4 3000E 02 lsp Automatic start 1 aut Speed control mode 1 spc Background average 10 bga Zero offset Pa 0 0000E 00 ofs Printout Maximum count 10 cnt Print interval 0 pin Printout header 1 phd Printout footer 1 pft
24. SRG 3 SPINNING ROTOR GAUGE RS 232 INTERFACE Instruction Manual Edition 01 2009 zl o 0 A CONTENTS INTRODUGCTION ege ese 1 1 1 edm EE 1 1 2 SCRIPTS Mae AANA ee st hha th ata hata Eesen 1 INTERPA GE 2 ire ts ncn cana noe pe ad he oa ba nee cay sae Soe a oc a gene eve gas Yeu eo 1 2 1 CONNECTION 1 2 2 CONEIGURATION 1 2 3 COMMUNICATION 2 2 4 PROMPT OPTON 2 2 5 SPECIAL CHARACTERS 2 2 6 REMOTE CONTROL GTaTE 2 INSTRUMENT COMMAND LANGUAGE ee KEREN KEREN KEREN KEEN 3 3 1 SYNTAX C depre et iecit c teet os ned Vies ta in titania LUE st 3 Sd geing Elle EE 3 re ln 3 Slo OX EEN 3 Sal aC Omelia eit et kr eee ee e cn EE OMA racc ED ER ERU 3 3 2 INSTRUMENT REPLIES e e e 4 3 2 Field Separators iinun ainan uiia Be etia de arca 4 3 2 20utpu t We EEN 4 3 3 COMMAND EYECUTION 4 3 3 1 Command Mode 4 3 9 2 Script MOGs i etu repel reip lite cde iens 4 3 3 S Aborting EXECUTION tie iie a ie P Re cR RH DESEE RR date 5 COMMAND SET SUMMARY 2 2 22cceeceecceeceeccneceeccesceeceseneceescneceeceesenees 6 SRG 2CE COMPATIBILITY sek ENKER enean KEREN KEREN KEEN nnn KEN 10 COMMAND HREFERENCE sek ENKER KEN KEEN KEN neeaaea RENE KEN 11 ME GE E deeg EDIDIT 53 7 1 SCRIPT Eppope 53 7 2 HUN TwpEEppope e e 54 APPENDIX qeecc E E ES 57 8 1 CONTROL DISPLAYS 57 8 2 MEASUREMENT MODES annanannannnnnnnnnnnnnrnnnnrnnnnrnnnnrnnrnnnnrnnrnrnnenrnnnnne 58 8 3 BIA A AAA AAA AAA AA TATA ia7 la 58
25. VAL Related Example rpt nxt tim Reply 18 24235 24 18 24 55 2 18 25 16 2 Viscosit Syntax VIS x VIS Related Example vis 18 2 vis Zero Adjust Syntax ZAD 1 ZAD 0 ZAD Related BGA OFS Example nxt zad 1 zad RS 232 INTERFACE SRG 3 VAL Returns the measured value unif and clears system status bit 4 Data available The measured value V is calculated as UNT20 V DCR OFS UNT gt 0 V PRS OFS BGA DCR PRS STS UNT val log measured values 4530E 04 4556E 04 4574E 04 VIS Returns the viscosity Pass Enter the viscosity x 0 to 100 uPa s at 20 C gas temperature and reset the gas type to 0 User Note The viscosity is used for compensation of DCR saturation at higher pressure A zero value will disable pressure linearization When the tempco is set to zero the viscosity value entered must relate to the actual gas temperature The actual viscosity n entering the computation is calculated as n VIS TCO TMP 293 15 K AMU GAS TCO TMP USR query viscosity change viscosity to 18 2 uPa s ZAD Returns the offset value uni to be used for zero adjustment see BGA Zero adjust Set offset according to background average option see BGA OFS Undo the adjustment reset the offset to zero read the next average valu use it RS 232 INTERFACE SRG 3 7 MESSAGES 7 1 SCRIPT ERRORS In response to an invalid command one of the messages below may be issued In talka
26. auxiliary input channel 2 scaled according to the selected mode see AM2 AO2 AS2 Related AM2 AC2 AS2 Example inl in2 read aux channel values Instrument Reset IRS Syntax IRS Resets the instrument and performs the power up initialization procedure Caution IRS turns off the gauge head power immediately Related AUT BDR Example 0 pwr power down sensor irs reset instrument Initial Speed ISP Syntax ISP Returns the initial sensor speed ie the sensor speed after the last acceleration in Hz Related RSP USP 26 RS 232 INTERFACE SRG 3 Example isp query initial speed Wait for Key Stroke KEY Syntax KEY Waits for a key stroke and returns the code nKEY Wait for the key n to be pressed n Key 1 POWER 2 ON 3 OFF 4 ESC 5 ENTER 6 7 V 8 9 3 n KEY Push key ie perform action of key n The disabled keys POWER ON OFF and ENTER will be enabled first 0 KEY Disable keys again While waiting for operator response the REMOTE LED keeps flashing to indicate that key action is requested by remote control Related DIS Example Press any key dis announce test rpt key read key codes Continue with ENTER dis inform operator 5 key wait for key 71 dis show gas setup menu 9 key set cursor on gas selection Local Lock Out LLO Syntax LLO Locks out local control by disabling the manual return feature in menu 5 0 After execution of LLO return to local control is only possible by sending the
27. e added to the printout A zero count selects printing to be unlimited Note The mode is also affected by the printing interval If the interval is 120 min the ONT value determines the total number of readings to be printed If the interval is 120 min the CNT value specifies a set of consecutive readings to be printed each time the interval expires see also PIN For example setting CNT 10 and PIN 60 will result in a total of 10 readings being printed at one hour intervals while setting PIN 180 will result in 10 consecutive readings printed every 3 hours until stopped by operator action Related PFT PIN PRT Example cnt query maximum count 30 cnt set count to 30 Correction Factor COR Syntax COR Returns the DCR correction factor linearizing the current pressure reading The correction factor is calculated as COR PRS DCR CAL Related CAL DCR PRS Example nxt val cor query value and correction factor of next reading Heply 1 5791E 03 1 0014E 00 17 RS 232 INTERFACE SRG 3 Date Syntax Related Example Reply Example DAT DAT Returns a string with the current date formatted yyyy mm ad ymdDAT Sets the date to year y 2000 to 2099 month m 1 to 12 and day d 1 to 31 SDT TIM ch Measurement num ech dated dat Measurement 122 dated 2008 10 08 2008 10 12 dat set date to 2008 10 12 Deceleration Rate DCR Syntax DCR Returns the measured deceleration rate
28. e during deceleration test See Err 31 Err 33 Controlling speed failed The sensor could not reach its initial speed with the allowed number of tries This may occur if the sensor signal is interfered or too noisy to obtain a useful speed indication Monitor the sensor signal at the SCOPE output with a spectrum analyzer or an oscilloscope to identify the problem Make sure that the signal path is free from interference In case of a weak signal dismount the gauge head magnetize the sensor then reinstall the head and try again 55 RS 232 INTERFACE SRG 3 Err 34 Bad signal level The sensor signal did not gain the minimum level 10dB required for measurement Possible causes are 1 The PICKUP plug is not in place Make sure that the gauge head is connected properly and try again 2 The remanent magnetization of the sensor is too small to produce a sufficient signal Dismount the gauge head magnetize the sensor then reinstall the head and try again 3 The sensor may experience excessive friction due to a high pressure b touching the tube wall excentric suspension or c electrostatic fields if the sensor is contained in a glass tube Make sure the gauge head is mounted properly the pressure is in the specified range and if a glass tube is used take measures to prevent electrostatic charging Err 35 Speed window too small The measurement could not be completed within the speed limits The windo
29. ed 3 8 Printer not ready 4 16 Data available 5 32 Message pending 6 64 Backup failed Setup defaulted 7 128 Power failure 0 STS Clears system status bits 4 5 and 7 Note 1 Status bit 6 is set during power up when the internal clock calendar has lost information due to low backup battery The bit is also set by command 1 DEF restore defaults The bit is reset by executing 0 DEF or by modifying the setup Related DCH MSG NXT VAL Example sts get status 0 sts begin with new status rpt nxt val log readings RS 232 INTERFACE SRG 3 Temperature Coefficient TCO Syntax TCO Returns the temperature coefficient of the viscosity uPa s K x TCO Enter the temperature coefficient x 0 to 0 1 uPass K and reset the gas type to 0 User Note The TCO value is used to calculate the actual gas viscosity n for the gas temperature TMP K according to n VIS TCO TMP 293 15 K If set to zero the stored viscosity value must relate to the actual gas temperature Related AMU GAS TMP USR VIS Example tco query tempco of viscosity 0 0465 tco change tempco to 4 65E 2 uPa s 1 K Time TIM Syntax TIM Returns a string with the time of day formatted hh mm ss h m s TIM Sets the time to h hours 0 to 23 m minutes 0 to 59 and s seconds 0 to 59 Related DAT SDT Example ech Time tim Reply Time 08 45 53 Example 12 13 0 tim set time to 12 13 00 Temperature Scale Label TLB Syntax TLB Returns a
30. eed send a FF character to the parallel port or a double CRLF sequence to the serial port resp str PRT Sends sir to the printer and adds a CRLF Note In script mode printer control is performed in foreground so the PRT command does not terminate until the print job is finished The statement 2 PRT continuous printing however will always execute in background if CNT 0 or PIN gt 60 min Related PPT RS 232 INTERFACE SRG 3 Example prt query printer status 4 prt get hardcopy of message log 2 prt start continuous printing Power Control PWR Syntax PWR Returns the power status 0 power down standby 1 power on operation 0 PWR Turns power off The following actions will be performed stop and dismount sensor switch off auxiliary power 15V switch off analog output and relays switch off gauge head power switch off display The communication via RS 232 stays active 1 PWR Turns power on Related Example pwr query power status 0 pwr shut down instrument Quote QUO Syntax QUO Outputs a quotation mark May be used in conjunction with UNO to enclose consecutive reply fields that are to be treated as a single string e g when importing data into a spreadsheet Related ECH UNO Example quo ech Measure time s ung mti Reply Measure time s 2 0000E 01 39 RS 232 INTERFACE SRG 3 Remote Control Output RCO Syntax RCO Returns the state of the remote control
31. efault Save 8 3 DATASETS 6 0 Current setup no timestamp 6 1 Load settings menu 6 2 Save settings menu 6 3 Setting options Setup 0 gt Load Setup 1 gt Save As gt Settings 2007 09 06 13 47 2007 09 06 13 47 Setup 1 Reset ENTER V ENTER V ENTER ENTER Enter setup menu Select setup file 1 16 Select setup file 1 15 Reset to factory defaults 58 8 4 SETUP 7 0 Gas parameter menu 8 0 Sensor parameter menu 9 0 Readout settings menu RS 232 INTERFACE 10 0 Printout settings menu 11 0 Output configuration menu 12 0 Aux input configuration menu SRG 3 13 0 Serial comm settings menu vn 8 5 Background average option Bgd Average 10 vn 8 6 Zero offset Offset 0 0000E 00 mbar Only the shade marked fields have an influence to the measurement result 59 Setup Menu gt Setup Menu gt Setup Menu gt Setup Menu gt Setup Menu gt Setup Menu gt Setup Menu Gas os j Sensor lt gt Readout lt gt Printout lt gt Outputs lt gt Aux Inputs lt gt Serial Comm lt gt vn Vn vn vn vn vn V 7 1 Gas selection mass units 8 1 Accommodation measure time 9 1 Display unit temperature scale 10 1 Statistics count print interval 11 1 Setpoints 12 1 Aux
32. ement starts depending on the AUT setting When the sensor is already mounted nothing occurs Related MNT STA Example arm query arm state dmt drop sensor 0 arm disarm sensor control Auxiliary Channel 1 Scale AS1 Syntax AS1 Returns the scale factor of auxiliary input channel 1 x AS1 Enter the scale factor x 1E 30 to 1E30 for channel 1 In temperature mode AM1 1 the factor must be entered in K V in pressure mode AM1 2 the factor must be entered in Pa V The displayed value H for a measured input voltage Vin is calculated as R AS1 Vy AO Helated AM1 AO1 IN1 Example asi query scale factor of aux channel 1 3 unt select Torr 2 aml chan 1 pressure input 133 33 asl scale 133 33 Pa V 10 Torr full scale 0 aol zero offset Auxiliary Channel 2 Scale AS2 Syntax AS2 Returns the scale factor of auxiliary input channel 2 x AS2 Enter the scale factor x 1E 30 to 1E30 for channel 2 In temperature mode AM1 1 the factor must be entered in K V in pressure mode AM1 2 the factor must be entered in Pa V The displayed value R for a measured input voltage Vy is calculated as R AS2 Ving AO2 Related AM2 AQ2 IN2 14 RS 232 INTERFACE SRG 3 Example as2 query scale factor of aux channel 2 1 unt select Pa 2 am2 chan 2 pressure input 1 as2 1 Pa V 10 Pa full scale Analog Output Span ASP Syntax ASP Returns the analog output span 0 ASP Selects linear scale n ASP Selects lo
33. erformed instead Related MNT RST Example sta start measurement 10 rpt nxt val get 10 readings sby remain in standby mode 42 RS 232 INTERFACE SRG 3 Script Mode SCR Syntax SCR Enters script mode see section 3 3 2 and enables talkative messages Note When using the SCR statement in a script make sure that also a CMD statement is included at or near the end of the script to allow command execution to be resumed in case of error Related CMD Example scr enter script mode 0 msg silent messages 2 use recall setup 2 ech Date dat show date ech Setup use ech from sdt show setup used sta start measurement 30 rpt nxt tim val log 30 readings stp stop rotor cmd exit script mode resume cmd execution ech Message msg show possible message Setup Date SDT Syntax SDT Returns date and time of the last change of the active settings formatted yyyy mm dd hh mm Each setup file has its own timestamp Related ECH QUO UNO USE Example quo ech Setup use ech from sdt unq Reply Setup 1 from 2008 10 11 15 28 Signal Level SGL Syntax SGL Returns the sensor signal level dB The value corresponds to the level which can be measured at the SCOPE output Note The signal input is muted during drive operation and when the sensor is idle or not mounted Related RSP Example rsp sgl check speed and signal level RS 232 INTERFACE SRG 3 Setup Lock SLK Syntax SLK Returns the state of the setup
34. et in the selected unit x 0to 10 Pa X 0 to 10 mbar X 0 to 7 5 Torr x 0to10 s Values entered in mbar or Torr are internally stored in Pa The stored value is not converted if the unit is changed to or from s Helated UNT Example ofs query offset 3 unt select Torr 2 321e 6 ofs enter zero offset 2 321E 6 Torr Operating Hours OPH Syntax OPH Returns the number of instrument operating hours Related RS 232 INTERFACE SRG 3 Example opp check operating hours Instrument Options OPT Syntax OPT Returns the selected instrument options 1 OPT Sets option 1 SI only The unit is forced to Pa and the temperature scale is forced to K 0 OPT Resets options Note With option 1 set UNT does not accept values gt 1 and TSC does not accept 1 Related DEF UNT Example opt check instrument options 1 opt force SI units 0 opt reset instrument options Analog Output OUT Syntax OUT Returns the analog output voltage V x OUT Sets the analog output voltage to x 0 to 11V The override mode must be set or else the analog output will periodically be overwritten by the measured value see OVR Related AFS ASP OVR Example out compare with the actual output voltage 1 ovr set override mod 10 out force output to full scale Output Override OVR Syntax 1 OVR Sets output override mode Analog output and relay switches may be set directly by the OUT and RLY commands 0 OVR Resets output
35. eter value There may be tighter limitations imposed by the instrument hardware query ball diameter change ball diameter to 4 7 mm DIS Returns the number of the menu displayed The number returned corresponds to the menu number times 10 eg 60 stands for menu 6 0 To maintain compatibility with the SRG 2CE display options there are two exceptions 3 is returned instead of 10 and 6 is returned instead of 40 Selects menu n 0 to 150 n being the menu number times 10 To maintain compatibility with the SRG 2CE display options there are two additions n 3 to 5 selects menu 1 0 and n 6 selects menu 4 0 Displays str immediate The string may be up to 32 characters An empty string blanks the display The menu number changes to 9 query menu number show menu 0 2 aux channel 2 show menu 1 0 DCR same as above ENTER dis occupies 2 rows 19 RS 232 INTERFACE SRG 3 Dela DLY Syntax DLY Delays command processing for approx 600 ms nDLY Delays command processing for n seconds 1 to 3600 Related DIS Example rpt inl 60 dly log aux channel 1 once a minute Damping Level DMP Syntax DMP Returns the output level dB of the sensor damping channels A B 1 DMP Returns the output level dB of damping channel A 2 DMP Returns the output level dB of damping channel B Note The value may serve as an indication of the level of mechanical interference the gauge head is exposed to Related SGL Example
36. garithmic scale spanning n decades 1 to 10 The output voltage Vou for a measured value p is calculated as ASP 0 Vout 10V p AFS ASP50 Vout 10V 1 log p AFS ASP Related AFS Example asp query output span 0 asp select linear output 5 asp select log output 2 volt decade Automatic Start AUT Syntax AUT Returns the automatic start mode 0 AUT Disables automatic start on power up 1 AUT Enables automatic start on power up Note that speed control should also be set to an automatic mode to allow continuous measurement see SPC Related SPC Example aut query automatic start mode 1 aut enable automatic start RS 232 INTERFACE SRG 3 Background Average BGA Syntax BGA Returns the selected background average span nBGA Sets the background average span to n readings n 0 50 If n lt 2 no averaging is performed and the current reading is used for zero adjustment Note The moving background average is the mean value of the last n pressure PRS or DCR readings depending on the selected unit This mean value is used for zero adjustment by the command ZAD Changing the unit will flush the buffer and reset the average value Helated OFS ZAD Example bga query backgound average 30 bga set span to 30 readings Baud Rate BDR Syntax BDR Returns the baud rate setting nBDR Selects baud rate n 1200 2400 4800 9600 19200 Note The baud rate returned is the stored value and may differ from the actual baud
37. gument is present the command is a write operator Example 20 mti sets measure time to 20s mti queries measure tim Integer arguments n are accepted in free format but must not contain a decimal point or an exponent character E Integers may be also entered as hex numbers if prefixed by dollar sign Characters are not case sensitive Example 0 123 1 0D Real arguments x are accepted in free format Exponent characters are not case sensitive Example 123 45 10 0 025 3 8e 5 1 456 7E 00 String arguments str must be enclosed in double quotes A string may be empty Example ure 3 1 3 Inline Text Inline text YD follows the ECH command and may contain any character except backslash which is treated as a delimiter If not delimited by a backslash the text extends to the end of line Example ech Ambient temperature C in2 3 1 4 Comments Script text starting with a quotation mark is treated as a comment and skipped up to the matching unquote or to the end of line Example 8 gas Uranium hexafluoride Ball diameter mm 4 5 dia RS 232 INTERFACE SRG 3 3 2 INSTRUMENT REPLIES 3 2 1 Field Separators Numbers and labels are padded with a space character to separate the output fields when commands are threaded Example ch num tim val ulb Reply 122 13 56 07 3 4567E 05 mbar 3 2 2 Output Formats Integer numbers are returned in free format Positive
38. he hysteresis mode HS1 lt 0 relay activated at p gt SP1 and released at p lt 1 HS1 SP1 HS1 gt 0 relay activated at p gt 1 HS1 SP1 and released at p lt SP1 Helated SP1 Example hs1 query hysteresis of SP1 3 unt select Torr 1 e 3 spl change SP1 level to 1 E 3 Torr 0 05 hs1 SPl is activated at p 1 E 3 Torr and released at p 9 5E 4 Torr Setpoint 2 Hysteresis HS2 Syntax HS2 Returns the hysteresis of setpoint 2 x HS2 Enter the hysteresis x 0 5 to 1 for setpoint 2 The sign of the value determines the hysteresis mode HS2 lt 0 relay activated at p gt SP2 and released at p 1 HS2 SP2 HS2 0 relay activated at p gt 1 HS2 SP2 and released at p lt SP2 Helated SP2 Example hs2 query hysteresis of SP2 3 unt select Torr 1 e 3 sp2 change SP2 level to 1 E 3 Torr 0 05 hs2 SP2 is activated at p 1 E 3 Torr and released at p 9 5E 4 Torr RS 232 INTERFACE SRG 3 Identif IDY Syntax IDY Returns a string identifying the instrument stating model firmware version and serial number Related ECH QUO UNO Example quo idy ung Reply SRG 3 V1 0 4 S N G500307G40 Auxiliary Channel 1 Input IN1 Syntax IN1 Returns the value of auxiliary input channel 1 scaled according to the selected mode see AM1 AOT AS1 Related AM1 AO1 AG Example inl in2 read aux channel values Auxiliary Channel 2 Input IN2 Syntax IN2 Returns the value of
39. he upper speed limit x 410 to 810 Hz The lower speed limit is adjusted to retain the speed window size Note 1 When operating in speed control mode 2 the actual speed limits may be dynamically extended to meet the specified sampling interval Related LSP MTI SPC Example usp query upper speed limit 450 usp shift speed window to 450 Hz upper limit User Gas Type USR Syntax USR Lists the user definable gas types Usr1 to Usr8 Each record comprises label molecular mass viscosity and tempco setting nUSR Saves the active gas parameters as gas type Usrn 1 to 8 0 USR Resets user definable gas types Usr1 to Usr8 to the default values N2 The active gas parameters will not be affected if one of the user definable gas types is currently selected On instrument reset however the parameters will be restored from the defaulted table Related AMU DEF GAS TCO VIS Example 44 01 amu enter molecular mass u 18 2 vis enter viscoity at 20 C uPa s 0 0465 tco enter tempco of viscosity uPa s 1 K 1 usr save as Usrl Example usr query user defintions Reply Usrl 4 4010E 01 1 8200E 01 4 6500E 02 Usr2 2 8016E 01 1 7630E 01 4 6040E 02 Usr3 2 8016E 01 1 7630E 01 4 6040E 02 Usr4 2 8016E 01 1 7630E 01 4 6040E 02 Usr5 2 8016E 01 1 7630E 01 4 6040E 02 Usr6 2 8016E 01 1 7630E 01 4 6040E 02 Usr7 2 8016E 01 1 7630E 01 4 6040E 02 Usr8 2 8016E 01 1 7630E 01 4 6040E 02 Example 0 usr reset user definitions Measured Value Syntax
40. ime The value x 5 to 60 s is internally rounded to tenths of seconds If the interval is changed during measurement a reduction will take effect immediately whereas an extension will be deferred until the next measurement cycle Note 1 If not measuring the stored value is returned When operating in speed control mode 1 the actual measure time may vary dynamically to meet the specified speed limits Related LSP SPC USP Example mti query measure tim 5 mti change measure time to 5 s Numbering NUM Syntax NUM Returns the next consecutive number in unsigned format n NUM Presets the number to n 0 to 4294967295 The next number returned will be n 1 Note The command may be used to number the iterations of RPT etc The number resets to 0 when the instrument is switched on Related RPT RS 232 INTERFACE SRG 3 Example 0 num clear number rpt nxt num val log numbered readings Reply 1 2 4530E 04 2 2 4531E 04 3 2 4531E 04 Wait for Next Reading NXT Syntax NXT Waits for system status bit 4 Data available to be asserted The status flag is not changed Note If used inside a loop RPT the status flag must be cleared between iterations by one of the commands VAL PRS DCR or 0 STS Related DCR VAL STS Example 0 sts begin with new status rpt nxt val log measured values Reply 2 4530E 04 2 4533E 04 2 4531E 04 Zero Offset OFS Syntax OFS Returns the zero offset unif x OFS Enter the zero offs
41. ion of the succeeding commands infinitely n RPT Repeats execution of the succeeding commands n times 2 to 10000 Note RPT refers to the commands following up to the end of line RPT statements may be cascaded only limited by the command buffer size of 128 characters Helated Example rpt nxt val continuously log measured values 10 rpt nxt val get next 10 readings RS 232 INTERFACE SRG 3 Rotational Speed RSP Syntax RSP Returns the rotational speed in Hz Note During drive operation and below about 390 Hz the rotational speed is not measured but calculated Related SGL Example rsp sgl check speed and signal level Restart Measurement RST Syntax RST Restarts measurement and causes reacceleration if the sensor speed is not within 1 to 2 of the upper speed limit If the sensor is dismounted or idle STA is performed instead RST runs in background Note The RST command in conjunction with speed control mode 0 enables user initiated sensor reacceleration This may be useful in cases where sensor heat up is of concern Related SBY SPC STA STP Example rst restart measurement Return to Local Control RTL Syntax RTL Return to local control The REMOTE LED turns off and the display shows menu 0 0 Related LLO Example perform commands rtl return to local Standby Mode SBY Syntax SBY Turns off speed control leaving the sensor coasting Standby If the sensor is dismounted MNT is p
42. lative deviation of the measured periods and the signal scatter SSC ie the uncertainty of the measured periods in us Note that a subsequent 0 TST is required to exit this mode and resume normal operation Enters test mode In test mode no gauge head is required and no sensor control takes place The PICKUP signal is assumed to be supplied by an external source eg a synthesizer The supplied signal must exceed the minimum level of 10dB 0 316Vims Measurement starts as soon as the signal frequency exceeds the selected USP value Measurement is suspended when the lower limit LSP is reached and is resumed when the frequency exceeds the USP value again Exits test mode If the sensor is spinning it is placed in Standby mode if the sensor is mounted but not spinning it stays Idle query test mode enter test mode get signal statistics Collecting data Computing statistics Count Mean val Std dev Rel dev SSC us Unit Label Syntax Related Example Reply Example Reply ULB 8000 68063 12 Voss 0 0011 143292 ULB Returns a string identifying the selected measurement unit ECH QUO UNQ UNT ech Pressure ulb ech Pressure Pa val ulb 3 706E 04 mbar 49 RS 232 INTERFACE SRG 3 Syntax Related Example Reply UNQ ECH QUO Outputs a quotation mark followed by a space character as a field separator May be used in conjunction with QUO to
43. lock 1 SLK Locks the setup menus menu 7 0 to 13 2 by disabling the ENTER key preventing inadvertent access to the instrument settings 0 SLK Unlocks the setup menus menu 7 0 to 13 2 Note The state of the setup lock may also be changed manually by selecting menu 6 0 and pressing the ON key to lock and the OFF to unlock Related Example slk query state of lock ils set up the instrument 1 slk inhibit accidental manipulation rtl return to local control Speed Control SPC Syntax SPC Returns the speed control mode n SPC Selects the speed control mode n 0 of 1 automatic with fixed speed limits measure time will be reduced to meet the specified speed limits at higher pressure 2 automatic with fixed measure time speed limits will be extended to meet the specified measure time at higher pressure Note 1 Disabling the speed control causes the rotor to enter standby mode when the rotational speed drops below the lower speed limit Related AUT LSP MTI USP Example spc query speed control mode I spe select fixed speed limits RS 232 INTERFACE SRG 3 SP1 Trip Point SP1 Syntax SP1 Returns the trip point unit of SP1 x SP1 Enter the trip point of SP1 in the selected unit X 2 10 to 10 Pa x 10 to 10 mbar x2 7 5 10 to 7 5 Torr x 10 t00 1 s7 Values entered in mbar or Torr are internally stored in Pa The stored value is not converted if the unit is changed to or from s A zero value forces
44. ng the required drive current Possible causes are 1 The MOTOR plug is not in place Make sure that the gauge head is connected properly and try again 2 The motor circuit is not tuned to its resonant frequency Dismount the gauge head see command DMT and start the tuning procedure see command HDA then reinstall the head and try again Adjusting head failed The adjustment procedure has been started with the sensor fitted Dismount the gauge head remove the sensor and try again Tuning motor failed The tuning procedure terminated unsuccessfully Possible causes are 1 The MOTOR plug is not in place Make sure that the gauge head is connected properly and try again 2 The resonant frequency of the motor circuit could not be found within the predefined range Make sure that both gauge head and unit have assumed room temperature and try again If the error persists a hardware problem is likely In this case contact service for assistance 54 RS 232 INTERFACE SRG 3 Err 21 No rotor detected No sensor was detected Make sure that the sensor is fitted and the gauge head is mounted properly then try again Err 22 Mounting rotor failed The instrument is unable to levitate the sensor Possible causes are 1 The suspension circuit of the gauge head shows significant zero error Dismount the gauge head and perform a zero adjustment see command HDA then reinstall the head and try again 2 The sensor is of a
45. ntrolling speed failed 2008 10 12 12 45 Err 34 Bad signal level 2008 10 12 14 38 Err 22 Mounting rotor failed Example 0 mlg flush message log mlg read message log Reply 2008 10 12 11 43 No messages Mount Rotor MNT Syntax MNT Turns on the magnetic bearing causing the sensor to levitate The sensor remains in idle mode Idle MNT runs in background If the rotor is already mounted no action is taken Note If armed see ARM the sensor is automatically mounted when it is detected inside the air gap of the magnetic bearing Related ARM DMT RCS SBY STA Example scr execute in foreground Exercise levitation 3 rpt mnt 2 dly dmt 2 dly RS 232 INTERFACE SRG 3 Syntax MSG Returns the message waiting in the message buffer and clears system status flag 5 Message If the buffer is empty the string No message is returned 0 MSG Selects silent messages default and clears system status flag 5 flushing an old message A new message will be buffered 1 MSG Selects talkative messages and clears system status flag 5 flushing an old message A new message will be transmitted Note Messages are also logged in the message log file see also MLG Related Mo STS Example msg read silent message Reply Err 33 Controlling speed failed Example 0 msg flush old message 1 msg get new messages immediately Measure Time MTI Syntax MTI Returns the actual measure time s x MTI Enter the measure t
46. numbers have no sign holder Example 0 123 1 Real numbers are returned in scientific format with four decimal places may be changed using the FMT command Positive numbers are preceded by a space Example 1 2345E 02 2 5000 02 3 8000E 05 Strings are returned without delimiters to enable concatenation If delimiting is required quotation marks may be added using the QUO and UNQ commands Example mbar User8 SRG 3 V1 0 4 500307 3 3 COMMAND EXECUTION 3 3 1 Command Mode Interactive dialog runs in command mode see also CMD A number of commands PRT RST STA STP start a background task and then terminate immediately so other things can be done before the task is finished The completion can be checked by polling the status commands STS RCS This is the default mode after power up or reset 3 3 2 Script Mode In script mode see also SCR all commands execute in foreground and remain busy until their task is finished This ensures correct command sequencing In case of premature termination due to an error message all succeeding commands are discarded until a CMD statement is processed which exits script mode and causes command execution to be resumed In this way the part of the script that may be rendered pointless by the unsuccessful step will be skipped Entering script mode also enables talkative messages so error messages will be included in the output log see also MSG Example scr 0 m
47. ort n 0 to 2 query printer port print to serial port disable printer output PRO Returns the selected prompt option 0 off no prompt 1 standard gt and 2 user assigned characters Enables prompt feature using the standard prompt characters greater sign gt for positive and question mark for negative acknowledge Assigns ASCII code c1 1 to 255 01 to FF to the positive and ASCII code c2 1 to 255 01 to FF to the negative acknowledge character and sets prompt option 2 User Disables the prompt feature query option disable prompting prompt with ACK and NAK codes RS 232 INTERFACE SRG 3 Pressure PRS Syntax PRS Returns the raw ie non offset pressure value unif and clears system status bit 4 Data available Note To read the zero adjusted pressure the VAL command must be used Related STS CPT VAL Example rpt nxt prs log pressure Print Control PRT Syntax PRT Returns the printer status printer idle printing next reading printing in continuous mode printing setup listing printing message log printing system parameter listing printing status snapshot o o Qn A oO N o printing string n PRT Controls printer function stop printing print next reading start continuous printing print setup listing print message log print system parameter listing for diagnostic purpose print status snapshot for diagnostic purpose o oc P WO N o form f
48. outputs n RCO Sets the remote control status outputs to n 0 to 3 Bit Value Relay 0 1 ERROR 1 2 MEASURE Related Example rco query output status 1 rco activate ERROR 0 rco release ERROR Rotor Control Status RCS Syntax RCS Returns the rotor control status Bit Value Meaning 3 0 0 Disarmed automatic sensor control off 1 No sensor detected Dismount sensor Idle sensor at rest Standby sensor coasting Starting Measuring READY relay on Stopping Shutdown 6 Drive direction 0 accelerate 1 decelerate Oo NOOO A CQ N 32 Drive operating 64 Sensor unstable N o0 P 128 Busy background task executing Related DMT MNT RST SBY STA STP Example rcs get sensor status scr execute in foreground mnt mount sensor rcs check result RS 232 INTERFACE SRG 3 Remaining Time REM Syntax REM Returns the remaining time s until the next reading If not measuring the selected measure time is returned Related MT Example rem check the time to go Reply 2 277 34E 01 Relay Control RLY Syntax RLY Returns the relay state n RLY Sets the relays to n 0 to 7 Bit Value Relay 0 1 SP1 1 2 SP2 2 4 READY The override mode must be set or else the relays will periodically be driven according to the measurement status see OVR Helated OUT OVR Example rly query relay state 1 ovr set override mod 4 rly activate READY Repeat RPT Syntax RPT Repeats execut
49. override mode Analog output and relay switches are automatically set by the measurement results Helated OUT RLY Example 1 ovr set override mod 10 out force output to full scale RS 232 INTERFACE SRG 3 Printout Data PDA Syntax PDA Returns the printout data option 0 standard time amp measured value 1 auxiliary channel 1 A measured value 2 auxiliary channel 2 amp measured value 3 time amp setpoint status amp measured value nPDA Selects printout data option n 0 to 3 If enabled by the printout header option see also PHD column titles as shown below will be included the tscal and unit holders being filled in by the respective labels n Column titles 0 Time Press unit or Time DCR 1 s 1 Aux1 V Press unit or Auxl tscal Press unit or Auxl unit Press unit Of Aux1 Press unit 2 Aux2 V Press unit Of Aux2 tscal Press unit Of Aux2 unit Press unit Of Aux2 Press unit 3 Time SP Press unit Of Time SP DCR 1 s Related AM1 AM2 PHD TSC UNT Example pda query printout data option 0 pda select standard printout 2 pda select logging of ain2 Page Eject PEJ Syntax PEJ Returns the automatic page eject option 0 page eject disabled 1 page eject enabled 1 PEJ Enables automatic page eject after printing Print jobs are terminated by sending a FF character ASCII 12 to the parallel printer or a double CLRF sequence to the serial printer 0 PEJ Disables automa
50. p phase Possible causes are 1 Measurement has not yet been started or has been aborted due to an error 2 The instrument entered standby mode because the rotor speed passed the lower speed limit with speed control mode 0 selected 53 Err 98 Err 99 RS 232 INTERFACE SRG 3 Printer not available The command n PRT or str PRT failed Possible causes are 1 The printer is disabled printer port set to 0 2 The printer is still busy with a previous print job Operation not allowed The desired operation could not be performed Possible causes are 1 The sensor is mounted when command HDA is executed 2 The sensor is spinning when command 1 TST is executed 3 The sensor speed has fallen below 390Hz when command 2 TST is executed 7 2 RUN TIME ERRORS In case of operation abort due to run time error one of the messages below may be issued In talkative mode messages are transmitted immediately in silent mode messages are buffered and may be read with the MSG command If menu 0 0 is selected the flashing error number will be displayed until the message is cleared by pressing the ESC key or by receiving an appropriate command eg MSG Err 07 Err 13 Err 14 Kap L5 MLC not recognized The levitation controller MLC could not be recognized during power up A hardware problem is likely Contact service for assistance Motor current failure The motor output is not capable of providi
51. perate at 1200 2400 4800 9600 default and 19200 baud To change the default setting open parameter Baud in menu 13 1 and select the desired baud rate The computer interface must be configured for the same baud rate 8 data bits no parity one stop bit no handshake RS 232 INTERFACE SRG 3 2 3 COMMUNICATION After power up the SRG 3 prompts for commands by sending a gt 62 Command input is buffered up to a maximum of 128 characters and must be terminated by a carriage return 13 An adjacent line feed 10 will be ignored On receiving the CR command processing starts When all commands are processed reply output is closed by emitting a CRLF then the instrument prompts for new commands 2 4 PROMPT OPTION The parameter Prompt in menu 13 1 controls the prompt option If set to Std default the instrument prompts for commands by emitting a gt positive acknowledge or if an error was encountered in the commands processed by emitting a negative acknowledge If set to Off no prompt character is emitted The parameters Ackn and Nack in menu 13 2 allow free assignment of the positive and negative acknowledge characters 2 5 SPECIAL CHARACTERS Incoming bytes are treated as 8 bit characters The following control characters have a special function all other control codes are ignored BS 8 deletes last character CAN 24 deletes all characters aborts command execution CR 13 terminates input DEL 127
52. s and clears system status bit 4 Data available Note DCR always returns the raw ie non offset value To read the zero adjusted deceleration rate the VAL command must be used Related GIG CPT VAL Example 1 unt select Pa rpt nxt dcr prs log pressure vs DCR Default Settings DEF Syntax DEF Returns the value of status bit 6 Backup failed Setup defaulted 0 DEF Clears status bit 6 Backup failed Setup defaulted 1 DEF Defaults all settings resets all user gas definitions unlocks the setup and sets status bit 6 Backup failed Setup defaulted The instrument is reset to the factory settings Related STS Example def check if setup has been defaulted 1 def restore the default settings 18 RS 232 INTERFACE SRG 3 Ball Densit Syntax DEN x DEN Related ACC DIA Example den 7 87 den Ball Diameter Syntax DIA x DIA Related ACC DEN Example dia 4 7 dia Display Control Syntax DIS nDIs st DIS Related KEY Example dis 2 dis 3 dis 10 dis Test DEN Returns the stored rotor ball density g cm Enter the rotor ball density x 6 to 10 g cm Note 1 This is a formal range for the density value There may be tighter limitations imposed by the instrument hardware query ball density change ball density to 7 87 g cm3 DIA Returns the stored rotor ball diameter mm Enter the rotor ball diameter x 1 to 6 mm Note 1 This is a formal range for the diam
53. s are the labels returned by command GLB 1 user definable Usr1 2 user definable Usr2 3 user definable Usr3 4 user definable Usr4 5 user definable Usr5 6 user definable Usr6 7 user definable Usr7 8 user definable Usr8 9 Air Air 10 q Argon Ar 11 Acethylene C2H2 12 Freon 14 CF4 13 Methane CH4 14 Carbon dioxide CO2 15 Deuterium D2 16 Hydrogen H2 17 Helium He 18 Hydrogen fluoride HF 19 Nitrogen N2 20 Nitrous oxide N20 21 Neon Ne 22 Oxygen 02 23 Sulfur dioxide 502 24 Sulfur hexafluoride SF6 25 Xenon xe Note 1 If any gas property is set see AMU TCO VIS the gas type is reset to 0 User As the gas parameters are stored as part of the setup file up to 15 different User gas types may be used in addition to Usr1 to Usr8 Related AMU TCO USR VIS 23 Example gas 8 gas 20 gas Gas Type Label Syntax GLB nGLB st n GLB Related Example ech Gas Reply Gas CH4 Example 14 glb Reply CO2 Example Head Adjust Syntax HDA 0 HDA 1 HDA 2 HDA 9 HDA Related RS 232 INTERFACE SRG 3 query gas type select Usr8 select N2 GLB Returns a string identifying the selected gas type see GAS If the gas type is 0 the string User is returned Returns the identifier of gas type n 1 to 25 Sets the identifier of user definable gas type n 1 to 8 to str If str is longer than 4 characters the first 4 character
54. s are used The new label will replace the standard label Usrn ECH GAS QUO UNQ glb get label of gas type 14 UF6 3 glb rename Usr3 to UF6 HDA Returns a string with the timestamp of the last head adjustment save If no adjustment has been done by the user this is the timestamp of the factory initialization Resets the adjustment to default values Adjusts levitation control by zeroing the sensor detection voltage The sensor has to be removed for this procedure Optimizes speed control by tuning the motor to its resonant frequency The drive frequency is swept from high to low values until the drive current peak is located The command runs in foreground Saves the adjusted parameters in EEPROM and adds the timestamp Unless 9 HDO is executed the adjustment remains voltatile and the previously saved parameters are restored on instrument initialization Note 1 The results are not automatically saved in EEPROM memory To make the adjustment permanent a subsequent command 9 HDA is required If the operation is attempted while the sensor is mounted script error 99 occurs RS 232 INTERFACE SRG 3 Example nda query date of last adjustment 0 hda reset adjustment Example 1 hda adjust levitation 2 hda tune motor 9 hda save adjustment Setpoint 1 Hysteresis HS1 Syntax HS1 Returns the hysteresis of setpoint 1 x HS1 Enter the hysteresis x 0 5 to 1 for setpoint 1 The sign of the value determines t
55. t of viscosity x TMP x Temperature x VIS x Viscosity User Gas Definitions Argum Cmd Reply Description n GLB sir Query gas label sti n GLB Assign user defined gas label USR file List user definitions n USR Save as user gas type 0 USR Reset user definitions Sensor Parameters Argum Cmd Reply Description x ACC x Accommodation factor n AUT n Automatic start n BGA n Background average x DEN x Ball density x DIA x Ball diameter x LSP x Lower speed limit x MTI x Measure time x OFS x Zero offset n SPC n Speed control mode x USP x Upper speed limit Readout Settings Argum Cmd Reply Description ymd DAT Set date n DPL n Decimal places of pressure readout n DTO n Menu timeout n OPT n SI option hms TIM Set time n TSC n Temperature scale n UNT n Measurement unit RS 232 INTERFACE SRG 3 Printer Settings Argum Cmd Reply Description n CNT Maximum count n PDA Printout data option n PEJ Page eject option n PFT Printout footer option n PHD Printout header option n PIN Printing interval n PPT Printer port Output Configuration Argum Cmd Reply Description x AFS x Analog output full scale x ASP x Analog output span x HS1 x SP1 hysteresis x HS2 x SP2 hysteresis x SP1 x SP1 trip point x SP2 x SP2 trip point Auxiliary Input Configuration Cmd Reply Description AM1 Auxiliary channel
56. tic page eject Print jobs are terminated by sending a double CRLF sequence Related PRT 34 Example pej 1 pej Printout Footer Syntax PFT n PFT Related CNT PHD Example pft 0 pft Example 1 pft RS 232 INTERFACE SRG 3 query page eject option enable pag ject PFT Returns the printout footer option 0 no footer 1 standard footer 2 count statement only Selects the printout footer option n 0 to 2 The selected footer will be added to the printout when continuous printing stops having reached the maximum count or being terminated by operator action The footer will be omitted for a count 2 Note 1 For count 1 the standard footer shows count and mean value For count 2 the standard footer comprises count mean value maximum deviation standard deviation and mean standard deviation of the printed readings query footer option no footer printed standard footer value dev dev std Example 2 pft LS OSE STOS 3000E 07 4000E 07 3000E 08 count statement only 35 RS 232 INTERFACE SRG 3 Printout Header PHD Syntax PHD Returns the printout header option 0 no header 1 standard header 2 column titles only n PHD Selects the printout header option n 0 to 2 Note The printout number resets when the header option is entered when the system date is set DAT command and on start of the print function when date has changed since the
57. tive mode messages are transmitted immediately in silent mode messages are buffered and may be read with the MSG command If menu 0 0 is selected the flashing error number will be displayed until the message is cleared by pressing the ESC key or by receiving an appropriate command eg MSG If the prompt option is enabled the negative acknowledge character will be sent to prompt for the next command Err 90 Power down The command ARM DIS DMP DMT HDA KEY MNT NXT OUT OVR RLY RST SBY SGL STA STP or ZAD failed because the instrument is powered down Err 91 Syntax error The processed token does not comply with the syntax of numbers strings command identifiers or comments Err 92 Unknown command The specified command is not implemented or not available in user mode Err 93 Illegal argument type A string argument is encountered where a number is expected or vice versa or a real number is encountered where an integer argument is required Err 94 Missing argument s Too few arguments are supplied or the desired phrase is not supported Err 95 Unexpected argument s Too many arguments are supplied or the desired phrase is not supported Err 96 Argument out of range The numeric value exceeds the range limits or denotes an unimplemented option or an undefined user gas type Err 97 Not measuring The command NXT 1 PRT or 2 PRT failed because the instrument is neither ready nor in start u
58. w is too small to attain a reading at the current pressure Either increase the window by adjusting the speed limits see commands USP and LSP or change to automatic mode 2 see command SPC then try again Err 36 Spurious signal The measured signal is not the sensor signal Possible causes are 1 The measured sensor speed seems to increase due to interfering signals picked up by the gauge head 2 An internal overflow occurred due to interfering signals picked up by the gauge head 3 The measured sensor acceleration is out of range so the speed control is very likely locked to a harmonic of the sensor signal Monitor the sensor signal at the SCOPE output with a spectrum analyzer or an oscilloscope to identify the problem Make sure the signal path is free from interference and try again Err 61 Printer data overrun Data overrun occurred in continuous print mode because the printer is not ready to accept data see also STS The print job has been aborted Possible causes are 1 The printer is stopped by paper out or another error Make sure that the printer is ready and has sufficient paper then try again 2 The printer is not online Make sure the printer is online and ready then try again 3 The printer may have received a spurious command during hot plugging Reset the printer by cycling the power switch then try again 4 The printer cable is not connected properly Check the connection then try again
Download Pdf Manuals
Related Search