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DPG10A GB Ver 10_2010

1. Examples T Description Sent STS Reply STS 1 busy Sent STS Reply STS 0 OK Sent IDN Reply STS 1 busy Cell tarring Remark This command is 20000 series standards compatible TAR command should be used instead of T for the DPG Examples TAM Description Example TAR Description Examples DH Budenberg SA FRANCE DH Budenberg FZCO UNITED ARABES EMIRATES Sent T Reply TA tarring OK Sent T Reply TL tarring not OK Ambient temperature EMM sensor measurement in C Sent TAM Reply 23 8 C Standard s tarring Sent TAR Reply TAR Y tarring OK Sent TAR Reply TAR N tarring not OK DH Budenberg Worldwide DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 a DH Budenberg Page 64 82 The Pressure Reference TIM Description Time at the moment of the measurement Examples Sent TIM Reply TIM 16 56 32 Sent TIM 18 59 Reply 18 59 Sent TIM 1859 Reply because the format is incorrect TPC Description Piston temperature in C Example Sent TPC Reply 23 43 C TST Description Perform the calibration test Remark The value returned is the difference between the last calibration and the test A value in 1 1 means that the current calibration is OK Otherwise a new calib
2. Notes The internal mass density is 7900 kg m The DH calibration mass density is 7920 kg m 9 2 4 Measuring head temperature correction The piston cylinder assembly s surface area depends on the pressure and the temperature dilation of the piston and cylinder s material 1 a p a t 20 stands for the temperature correction p and a are the piston and cylinder s linear dilation coefficients t is the piston cylinder assembly s temperature in C DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 gi DH Budenberg Page 68 82 The Pressure Reference In order to know the piston cylinder assembly temperature each measuring head is equipped with a Pt100 probe In the O 40 C field the temperature is proportional to the variation of the platinum sensitive element resistance according to the equation R Ro 0 3896 Where 0 temperature in Celsius degrees RO sensitive element temperature resistance measured value Ro sensitive element 0 C temperature resistance determined by DH BUDENBERG s laboratory 0 3896 ohms conversion coefficient in Celsius degrees To obtain accurate measurements the Pt100 probe resistance value measurement is a 4 wi
3. ans DH Budenberg Page 22 82 The Pressure Reference Once the cover has been removed the drive mechanism can be seen Piston drive 3 2 3 3 Install the measuring head on the base Insert carefully the ball bearing in the driving slot It is now possible to place the measuring head top part on its base Always exert great care during this operation to prevent the piston from dropping Screw in the 3 attachment screws The DPG10A is now ready for operation Never install the measuring head on the base when the motor is operating DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 un DH Budenberg Page 23 82 The Pressure Reference 3 2 5 Powering up Select the appropriate voltage with the voltage switch DPG8 II only DPG10 is equipped with universal power supply After you have installed the measuring head connect the motor power cable and the temperature probe cable to the rear panel connectors A rear panel power switch ensures the power up of the instrument During the start up the front panel display indicates the initialization of the DPG10A At the end of the initialization the standard automatically steps to the measurement mode with the l
4. which has been thus defined vV appears in front of USR in the UNITS menu F4 ESC steps back to the previous screen without confirming the user unit 6 3 6 Quitting and or saving the modifications F1 SAV steps back to the measurement mode and save the modifications SAVE displays F4 ESC steps back to the main run screen The user will also be able to save the modifications by pressing F1 SAV when he quits the main run screen 6 4 Setting pressure measurement parameters From the measurement mode F3 gives the user direct access to the SETTINGS menu but the user can also press ENTER to access the main run screen select the SETTINGS menu with a v lt gt and then confirm his choice by pressing ENTER again In these 2 cases the following display appears with the default settings for a 1 bar kg Kn RESOLUTION 0 0001000 mbar STABILITY 0 001 mbar FILTER This menu adapts the display and the transmission of the pressure values to the measurement conditions especially pressure generator instabilities and to the required accuracy RESOLUTION 0 0001000 mbar resolution of the unit displayed pressure value in the selected unit STABILITY 0 0001 mbar criterion which commands in chapter 2 5 1 parameter 2 and that defines the pressure stability area It is expressed in x unit second FILTER NONE LOW MEDIUM HIGH criterion which commands 0 1 2 and 3 in chap 4 1 1 parameter 7 NONE means that
5. EXE runs the calibration procedure Ifthe load exceeds 0 the message WARNING ZERO ERROR displays Ifthe cell s measurement is unstable the message WARNING UNSTABLE displays Load the required mass as instructed on the display 800 g Press F2 gt TST test of the calibration Only available with internal calibration Press F4 gt ESC goes back to the measurement mode before or after the calibration has taken place 5 2 1 Calibration time Follow the displayed instructions and load the masses until the amount corresponds to the value indicated on the screen 5 2 2 End of calibration A beep can be heard at the end of the calibration and the display indicates whether the calibration has been successful COMPLETE displays or not ABORT displays The calibration cannot be run when the measurement is not stable vibrations draughts In this case the user must protect the DPG10A from the environment disturbances and start again the procedure The display goes back to the measurement mode by pressing F4 ESC It is not possible to interrupt a calibration which is in progress The user must wait to be in the measurement mode i e about 1 minute at the most after the beginning of the procedure DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Bude
6. 33 1 48 33 65 90 dhonline dh budenberg com DH Budenberg Gmbh Raiffeisenstrasse 2 D 63110 Rodgau DUDENHOFEN Germany Tel 49 0 6106 82 940 Fax 49 0 6106 82 9417 Desgranges support t online de DH Budenberg Instrumentation PVT Ltd 299 300 2 lain Road Nehru Nagar Old Mahabalipuram Road Chennai 600 096 India Tel 00 91 44 2448 2014 Fax 00 91 44 2448 2862 Dhbudenberg vsnl net DH Budenberg PTE LTD 10 C Stanley Street 068729 SINGAPORE Tel 00 788 777 1249 Fax 00 656 826 4101 Kevin gove dh budenberg com sg DPG10A User manual Version 10 2010 Page 82 82 DH Budenberg Ltd 2 Gilchrist Road Northbank Industrial Estate Irlam M44 5AY MANCHESTER UNITED KINGDOM Tel 44 870 787 73 70 Fax 44 870 787 73 69 Sales dh budenberg co uk DH Budenberg Inc 300 CM ALLEN PARKWAY SUITE 212B San MARCOS TEXAS 78666 USA Toll free 00 1 877 713 2733 Tel 00 1 512 3535 3133 Fax 00 1 512 353 3106 Sales dh budenberg com DH Budenberg FZCO 4a 114 DUBAI AIRPORT FREE ZONE PO BOX 54639 DUBAI EMIRATS ARABES UNIS Tel 00 97 142 045 104 Fax 00 97 142 045 103 Sanjay dh budenbergfzco com DH Budenberg PTY LTD 65 SEASPRAY CRESCENT 6036 JANDALEE WAA AUSTRALIA Tel 61 8 9562 7150 Fax 61 8 6102 1776 Brian coan dh budenberg com au DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD FRANCE UNITED KINGDOM DH Budenberg FZCO DH Budenberg PV LTD UNITED ARABES EMIRATES
7. ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 an DH Budenberg The Pressure Reference Page 72 82 1 Put the measuring head on a table 2 Put the tool on the measuring head as shown in the hereafter drawing and hold it with one hand 3 With your other hand insert the piston in the cylinder 4 Do not release the piston until the head is in contact with the cylinder iL iY Z p mm DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 un DH Budenberg Page 73 82 The Pressure Reference 11 4 Changing the components 11 4 1 Changing the fuses Remove the fuses compartment from the power socket located on the rear panel Cf illustration 3 2 5 Replace the damaged fuse s with fuse s of equivalent type and value 0 315 Amp Temporized Replace the fuses compartment Never forget to disconnect the standard before changing the fuses Make sure that the fuses be replaced with identical fuses If the new fuses melt again after a short period of time it means that the standard s electric connection is damaged You then must disconnect the standard and have it mended by an authorized After Sales Service
8. Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD INDIA SINGAPORE AUSTRALIA an DH Budenberg DPG10A User manual Version 10 2010 Page 58 82 The Pressure Reference FIL Description Selection of the filter for the pressure measurement Remark The equivalence figure filter is 0 NONE 1 LOW 2 MEDIUM 3 HIGH Examples HUM Description Example IDN Description Example INI Description Example LCL Description Example MCL Description Example DH Budenberg SA FRANCE DH Budenberg FZCO UNITED ARABES EMIRATES Sent FIL Reply FIL 0 Sent FIL 2 Reply 2 Sent FIL 5 Reply because the figure 0 1 2 3 Relative ambient humidity EMM sensor measurement in Sent HUM Reply 52 4 Identification of the standard version of the internal software and serial number Sent IDN Reply DPG10A Ver 2 51 9732 Configuration of the measuring cell to work with the cell maximum range Sent INI Reply OK Return to local mode and give access to the keyboard Sent LCL Reply LCL OK Internal or external calibration mode Sent MCL Reply MCL I internal Sent MCL Reply MCL E external DH Budenberg Worldwide DH Budenberg LTD UNITED KINGDOM DH Budenberg Gmbh GERMANY DH Budenberg Inc UNITED STATE of AMERICA DH Budenberg PV
9. DH Budenberg Inc UNITED STATE of AMERICA DH Budenberg PTY LTD AUSTRALIA an DH Budenberg The Pressure Reference 2 4 2 Side view 2 4 3 Rear view OS NDR IND DH Budenberg SA FRANCE DH Budenberg FZCO DPG10A User manual Version 10 2010 Page 13 82 Reference vacuum connection PRT cable power switch voltage fuse power socket 10 fuse and spare fuse 11 motor switch 12 COM1 port to computer COM2 port Motor cable Electrical connection for the lub box For HP version Connection to lubricate the piston For HP version Connection to lubricate the piston For HP version DH Budenberg Worldwide DH Budenberg LTD UNITED KINGDOM DH Budenberg PV LTD UNITED ARABES EMIRATES INDIA DH Budenberg Gmbh GERMANY DH Budenberg PTE LTD SINGAPORE DH Budenberg Inc UNITED STATE of AMERICA DH Budenberg PTY LTD AUSTRALIA DPG10A User manual Version 10 2010 als DH Budenberg Page 14 82 The Pressure Reference 2 4 4 Top view Bubble Level DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 un DH Budenberg Page 15 82 The Pressure Reference 2 4 5 Connection of the lubrication box P N 60593 connection between the
10. DPG and Connection to external drive air supply 7 bar The lubrication box P N 60593 is used with the DPG HP version whatever the piston cylinder assembly used HP version required if maximum pressure is higher than 10 bar This box is dedicated to switch automatically the lubrication circuit of the piston cylinder assembly from the atmosphere when the pressure measured is below the atmosphere to the measured pressure when the measured pressure is above the atmosphere The box is constituted of 2 main valves pneumatically actuated and 1 low pressure electro pilot to drive the 2 main The electrical power is given by the DPG and the box is piloted by the DPG There is no human action For the DPG LP version there is no external box the switching module is integrated in the DPG DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 16 82 The Pressure Reference 2 5 Measurement display and keyboard 2 5 1 Interpreting a reading in measure mode After the user has powered up the standard the display indicates the measured pressure as well as the following operating parameters Bar graph indicates the measuring range that has been used P
11. DPG10A User manual Version 10 2010 LE DH Budenberg Page 56 82 The Pressure Reference 8 COMMAND DESCRIPTION ABS Description DPG in absolute or gauge Example Sent ABS Reply ABS ON ATM Description Atmospheric pressure value EMM internal sensor measurement in Pa Example Sent ATM Reply 101325 Pa BLC Description Selected measuring head number Remark The user previously has to choose from the 3 existing heads the measuring head with which he wants to read and modify one or several features Examples Sent BLC Query BLC 2 Sent BLC 3 Query 3 Sent BLC 4 Query because the head 1 2 3 BRM Description Initialization of the external barometer Remark When BRM 1 the displayed pressure value corresponds to the addition of the pressure given by the barometer with the DPG10A pressure The user previously has to enter the barometer serial number NBA Examples Sent BRM Query BRM 0 initialization not OK Sent BRM 1 Query 1 initialization start ERR 4 if unsuccessful CAL Description Running of the calibration procedure Examples Sent CAL Reply CAL S beginning of the calibration Sent CAL Reply CAL N calibration impossible not at zero ERR 3 STS 1 during calibration process When STS 0 check ERR to know if calibration succeed ERR 0 or not ERR 2 or ERR 3 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE U
12. INDIA DH Budenberg Gmbh DH Budenberg Inc GERMANY UNITED STATE of AMERICA DH Budenberg PTE LTD DH Budenberg PTY LTD SINGAPORE AUSTRALIA
13. LTD DH Budenberg PTE LTD INDIA SINGAPORE DH Budenberg PTY LTD AUSTRALIA an DH Budenberg The Pressure Reference MPB Description Barometric pressure external reference measurement in Pa DPG10A User manual Version 10 2010 Page 59 82 Remark This measurement is given by an external barometer which is connected to the standard Example Sent MPB Reply 99997 Pa MPI Description Immediate pressure measurement Remark S stable and I unstable Example Sent MPI Reply S 1 03542 bar stable Sent MPI Reply 1 1 03542 bar unstable MPR Description Repeated pressure measurement Remark It is possible to stop the procedure by sending any command Example Sent MPR Reply MPR mbar selected unit 1013 52 value 1107 68 MPS Description Stable pressure measurement Reply message First stable pressure value Remark There is no answer as long as the pressure is unstable Example Sent MPS Reply MPS psi 20 5432 MPV Description vacuum measurement form the pirani sensor Remark Pressure in Pascal Example Sent MPV Reply 2 03 Pa MVC Description Air mass density EMM measurement during the last calibration in Kg m Example Sent MVC Reply 1 19 Kg m DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh FRANCE UNITED KINGDOM GERMANY DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD UNITED ARABES EMIRATES INDIA SINGAPORE DH Budenberg Inc U
14. Pressure Reference 12 MOVING amp SHIPPING If the user has to move the DPG1OA or to ship it for being recalibrated it is absolutely necessary to put the standard back in its original container which has been especially designed to maintain the standard s performances after transportation Cf 3 1 13 TROUBLESHOOTING SYMPTOM POSSIBLE CAUSE SOLUTION The display does not The load is too light Install the coupling system step to the gt Remove the measuring head measurement mode at The instability is too and install it back after you the end of the important have stepped to the initialization measurement mode It is not possible to The instability is too gt Clean the piston cylinder TARE the standard important The RS232 port The RS cable is damaged Use a direct cable communication does Kan not work The communication rate is Change the communication faulty rate The motor does notj The piston cylinder is not Clean the piston cylinder work mobile gt Check the connection and The connection does not the power switch work It is not possible to The piston cylinder weight gt Start the initialization reach the maximum is too heavy procedure again from the range 10 Kg x Kn CALIBRATION menu which appears by pressing CAL It is not possible to There is a leak in the Make sure that all connection pump down 5 Pa system are closed The capacity
15. amp n P an P m Air buoyancy correction calculated according to the the user entry data indications of the atmospheric pressure humidity and ambient temperature sensors Kn specific piston cylinder assembly coefficient N measuring cell indication in counts Nk sensitivity of the measuring cell g local gravity In normal gravity Qpc piston cylinder assembly dilation coefficient t piston cylinder assembly temperature in Pac air mass density during the calibration Pm calibration mass density Pan air normal mass density AP piston cylinder pressure distortion coefficient Piac remaining pressure in vacuum chamber DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 67 82 The Pressure Reference 9 2 1 Kn determination The Kn conversion coefficient is determined by the DH BUDENBERG s laboratory It depends on the piston cylinder assembly surface area and temperature and also depends on pressure itself as far as high pressures are concerned The pressure calculation takes into account the force measurement which is applied on the measuring cell This measurement depends on the local gravity and the air buoy
16. his password To enter the password select a letter from the alphabetic pad with A v lt gt a and v make a 5 letter displacement respectively to the left and to the right Press ENTER the selected letter displays above the cursor Repeat the operation until you obtain the desired password The edited letters are displayed with asterisks x DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 49 82 The Pressure Reference F3 DEL erases the latest user edited letter F2 DEF displays the default password and enables to cancel the password F1 SAV confirms the password and steps back to the previous screen DATA SET displays is the password is correct DATA NOT SET displays if the password is not correct F4 ESC steps back to the previous screen without saving the password After the user has edited the password he steps back to the PARAMETERS menu and then he can press F2 EDT again to modify the parameters he wishes to change 6 8 1 Modifying the gravity Press F2 after having selected Gravity and entered the password as explained The display is GRAVITY Select a figure from the numeric pad with a v lt gt to ed
17. if the DPG10A standard is used in accordance with the operating instructions described in this manual However a regular maintenance made by an authorized After Sales Service technician contributes to the constant accuracy of the DPG10A and increases its lifetime 11 2 Cleaning Clean the instrument with a humid cloth with a common cleaning product Never forget to disconnect the standard before cleaning it 11 2 1 Cleaning the Piston Cylinder Assembly A good cleaning technique should remove all foreign material leave no residue polish the critical surfaces of the piston and cylinder and remove remaining dust and lint before piston cylinder assembly The following procedure is recommended 1 Clean the piston and the cylinder in hot water with a detergent that does not leave impurities Never immerse the piston head in the water 2 Rinse the piston and the cylinder with pure and warm water then wipes each element with a clean and non fluffy cloth Dry accurately the piston and the cylinder Never re assemble or put in contact the piston with the cylinder when not perfectly dry The tungsten carbide particles of this material are kept together with cobalt metal that can be corroded Use leather gloves never put in contact human skin with tungsten carbide polished surfaces 3 Install carefully the piston into the cylinder 4 Immerse separately the piston and the cylinder disassembled in a solvent exempt of chlorine and do a bac
18. non een nun nun nun nun une n nun nennen nennen nenn 77 11 3 2 4 Vacuum sensor calibration oo en en en en non een nun nun nun nun nun nennen nennen nenn 78 12 MOVING amp SHIPPING nee 79 132 TROUBLESHOOTING area nn een 79 Appendix 1 CE DECLARATION zersersennennennennennnn nn en ennennenn nenne nun nun nun nun nn n nennen nennen 80 Appendix 2 ADAPTATION KIT FOR GAUGE MEASURING HEAD zuusssnnnnnnnnnnennennnnnenn 81 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ala DH Budenberg Page 6 82 The Pressure Reference 1 PURPOSE AND OPERATING PRINCIPLE 1 1 Purpose The DPG10A standard is a digital primary pressure standard which combines the metrological performances of fundamental pressure balances with the convenience of digital transfer standards The measuring principle of the DPG10A is based on the association of a piston cylinder assembly similar to those used in pressure balances with an electronic measuring cell The new DPG10A has been specifically designed for the calibration of last generation electronic pressure measuring instruments automatic controllers pressure calibrators transmitters and sensors Its measuring principle and its high level pe
19. selected Barometer and entered the password as explained The display is BAROMETER SRN Select a figure from the numeric pad with a v lt gt to edit a new value Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF displays the barometer serial number NONE Fi SAV saves the new number and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 a DH Budenberg Page 51 82 The Pressure Reference 6 8 4 Quitting and or saving the modifications F1 SAV steps back to the measurement mode and saves the modifications SAVE displays F4 ESC steps back to the main run screen The user will also be able to save the modifications by pressing F1 SAV when he quits the main run screen DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMI
20. too large or too small DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 LE DH Budenberg Page 66 82 The Pressure Reference 9 METROLOGY 9 1 Fundamental principle Calculation of a pressure with the general formula Pressure measurement using a DPG10A pressure standard directly derives from the fundamental definition of pressure It is defined as being the ratio of a force to an area F is the force A is the piston cylinder surface area determined by the DH BUDENBERG s metrological laboratory The piston cylinder assembly measuring performance first of all depends on the geometry of the constituents good piston and cylinder thin clearance between the two elements but also on the influence of the environment on A and F 9 2 Automatic pressure corrections The DPG10A is equipped with a system which enables to take into account the external parameters constant and variable that affect the displayed pressure calculation Pressure in normal conditions 7 Piston cylinder pressure distortion correction P Knx x Lx 1 e x t 20 x Pa Pn x 1 4P Prac Measuring head temperature correction calculated according to the sensor s indications N k
21. wait for at least 1 hour for a good reference vacuum to be established on both sides of the piston and for the electronics to stabilize under vacuum conditions The first time you vacuum the DPG10A or after a long usage in gauge mode or in differential mode it can take several hours before getting very small residual vacuum value We recommend achieving a residual vacuum between 2 and 4 Pascal Residual vacuum below 2 Pa is not recommended and may create perturbation and or instability of the DPG When established pressing the TARE button can zero the instrument DH Budenberg SA FRANCE DH Budenberg FZCO UNITED ARABES EMIRATES DH Budenberg Worldwide DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ala DH Budenberg Page 27 82 The Pressure Reference Setup for the DPG10A HP version Valve 2 is open 4 3 Calibrating DPG under vacuum Once the DPG has been tarred zeroed it must be calibrated 4 3 1 Use of the Auto calibration function One of the unique features of DPG10A is that it is possible to perform an internal calibration of the measuring cell under vacuum condition hence to correct for any effect vacuum may have on the electronics performance To proceed with internal calibration in absolute pressure mode set up the DPG10A as
22. 10A EMM and ACF are trademarks of DH Budenberg DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ala DH Budenberg Page 3 82 The Pressure Reference 1 PURPOSE AND OPERATING PRINCIPLE euausenensenennnnnnnnnennnnnn nenn nenn nenn nenn nennen 6 1 1 PUPP OSC a u un 00002 an nn EE tn En nen En 6 1 2 Operating Principles ann 6 1 2 1 Meas ring Principles ee er AN 6 1 2 2 Auto Calibrating Function z s4srerennennn nenne nennen nenn nenn nn nennen nn nenn nenn nennen 7 1 2 3 Environment Monitoring Module uurssesnennnnennnnnnnnnen nn nennen ernennen ernennen nennen 8 1 3 MEASUTING ranges starao ee ded Gey en ee ee 9 2 DESCRIPTION sau 22u 000 sn nn ee ner 10 2 1 The base na ee 11 2 2 The measuring NEA urira erinan aranana veieaxk AAAA RAENT ANEN 11 2 3 Ihe cceSSories marimi Diesen aa N a nn EE DEE 11 2 4 General VIEW aus due En aa ER RE ne 12 2 AAS DY VIEW a a re En RE 12 2 4 2 Side VIEW ireamda ame end re an nn ee ner 13 2 4 3 Rear VIEW ED ner ee tena EEE RE 13 224 4 TOD VIEW ee eek 14 2 4 5 Connection of the lubrication box P N 60593 ususssnsnnnnnnnnnnnn nun nnn nn nun nn nun nn nun nen 15 2 5 Measurement display and keyboard usess
23. ANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ID DH Budenberg ea The Pressure Reference 6 4 3 Modifying the filtern ana ee nn nen 36 6 4 4 Modifying the vacuum euessenennenennnnnnnnnnn nenn nenn nenn nenn nenn nenn nenn nennen nennen 36 6 4 5 Quitting and or saving the modifications z z4srennenen nenn nennen nun nennen nennen 36 6 5 Knowing the ambient conditions s rserennnnennn nenne nennen nn nenn nennen nennen nennen 36 6 6 Selecting a measuring hedras nase namen nn nennen anna nn 37 6 6 1 Modifying the head parameters zuussnsennennennennennen nen en enn en nun nun nun une nun une n nenne 37 6 6 2 Modifying the measuring head serial number 4 s4srennnnen nennen nennen anne nennen 39 6 6 3 Modifying the piston cylinder assembly serial number usssssssnnnon non nun nn nennen 39 6 6 4 Modifying the piston cylinder assembly conversion coefficient uusunnennennennenn en 40 6 6 5 Modifying the head temperature probe value zssssnsenennenn non none nn nun nun nun nenne nenn 41 6 6 6 Selecting the measuring head 4 z4r4 rnnnennnnnn nn nennen nn nenn nennen nennen nn nennen 41 6 6 7 Quitting and or saving the modifications urur4sreran nenne nenne nenne nennen nn nennen 41 6 7 Customizing the DPGIDA uuu
24. AUSTRALIA DPG10A User manual Version 10 2010 gi DH Budenberg ee The Pressure Reference 2 Error code O no error 1 RS232 communication error bad command 2 Cell instable tare and calibration impossible 3 Cell not at zero calibration impossible 4 Initialization of the external barometer unsuccessful 5 Cell overload 6 Cell under load 7 Pressure reading while in menu mode 8 Test of the calibration unsuccessful 3 Status of the DPG When the DPG is performing the calibration the zeroing or the configuration of the DPM no other command are valid The DPG answer STS 1 until the action in progress is finished The command STS can be used to check if one the action mentioned is completed STS 0 or not STS 1 The command ERR should be used to check if the action succeed ERR 0 or not see 2 7 3 Syntax Carriage Return CR and Line Feed LF characters must follow each command Therefore the message is a character chain with CR and LF marking the end of the chain The CR and LF characters follow each return message When a command is not supported the received message is answered back and followed by ex SXD SXD DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA
25. Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ala DH Budenberg Page 45 82 The Pressure Reference 6 7 2 Defining a password F2 EDT enables to define a 4 letter long password after you have selected PASSW in the SYSTEM menu The display is PASSWORD ABCDEFGHIJKLMNOPQRSTUVWX To define the password select a letter from the alphabetic pad with a v lt gt a and v make a 5 letter displacement respectively to the left and to the right Press ENTER the selected letter displays above the cursor Repeat the operation until you obtain the desired password The edited letters are displayed with asterisks x x F3 DEL erases the latest user edited letter F2 DEF displays the default password and enables to cancel the password Cf 7 7 2 2 F1 SAV confirms the password and steps back to the previous screen DATA SET displays if the password is correct F4 ESC steps back to the previous screen without saving the password 6 7 2 1 Operating principle and use of the password Defining a password enables to prevent the access to a certain number of sensitive data MEASURING HEAD parameters RESET ATMOSPHERIC PRESSURE RELATIVE HUMIDITY TEMPERATURE PARAMETERS menu The user is asked this password
26. DEL erases the latest user edited letter F2 DEF displays the default password and enables to cancel the password Cf 7 7 2 2 F1 SAV confirms the password and steps back to the previous screen DATA SET displays if the password is correct DATA NOT SET displays if the password is not correct F4 ESC steps back to the previous screen without saving the password After he has edited the password the user steps back to the MEASURING HEADS menu and then he can press F2 EDT again to modify the features he wishes to change DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 abs DH Budenberg pusco yi The Pressure Reference 6 6 2 Modifying the measuring head serial number Press F2 after having selected Head Num and entered the password as explained The display is HEAD 1 HEAD NUMBER Select a figure from the numeric pad with v lt gt to edit a new number Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired number F3 DEL erases the latest user edited figure F2 DEF displays the usual head serial number NONE F1 SAV saves the new number and steps back to the previous screen DATA SET disp
27. DPG10A User manual Version 10 2010 ala DH j Budenberg Page 1 82 The Pressure Reference AKT Digital Piston Gauge DPG 10 A DPG8 II User s Manual Absolute Digital Piston Gauge DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 a DH Budenberg Page 2 82 The Pressure Reference DPG10A 07 2010 Software version 5 00 Dear user We would like first to thank you for your confidence in our expertise and products when buying our DPG10A We have made every effort to ensure the accuracy of the contents of this manual Should you detect any errors we would greatly appreciate receiving suggestions to improve the quality of the contents of this manual The above notwithstanding we can assume no responsibility for any errors in this manual or their eventual consequences We reserve the right to make modifications to this manual without any further notice For more detailed technical data about the DPG10A please contact us DH Budenberg SA Copyright 2010 DH Desgranges amp Huot and the DH logotype are registered trademarks of DH Budenberg SA The trademarks mentioned in this manual are the ownership of their respective companies DPG
28. E AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 25 82 The Pressure Reference Several parameters may get the zero drifting Temperature drifts after the power up Ambient temperature variations No use ofthe measuring cell during a certain period of time No use ofthe measuring head during a certain period of time Change in the location of the standard and or leveling adjustment If the measuring head has been installed after the powering up the DPG10A standard s range will be reduced by the piston weight To get the maximum range the user can determine an original zero which corresponds to the piston s weight by pressing CAL The display is CALIBRATION Press F1 to launch the CAL procedure If the load exceeds 0 the message WARNING ZERO ERROR displays If the cell s measurement is unstable the message WARNING UNSTABLE displays Calibration can take about 1 or 2 minutes according to the stability Wait until the calibration is finished A beep can be heard at the end of the calibration and the display indicates whether the calibration has been successful COMPLETE displays or not ABORT displays It is not possible to interrupt a calibration which is in progress The user must wait to be in the measurement mode i e about 1 minute maximum after the beginning of the process The calibration cannot be run when the measurement is not stable vibrations dra
29. G10A s calibration mode after you have selected CAL in the SYSTEM menu The display is internal calibration selected by default CALIBRATION INTERNAL EXTERNAL Select the calibration mode you wish to run with lt and gt vV appears in front of the active mode F3 VAL confirms the newly selected mode F1 SAV steps back to the measurement mode and saves the modifications SAVE displays F4 ESC steps back to the previous screen 6 7 4 Selecting the RS232C communication rate F2 EDT selects the RS232C communication rate after the user has selected COM in the SYSTEM menu The screen appears with the default values COM 1 1 Start 8 Data Bits No Panty 1 Stop Start 8 Data Bits fixed program message format No Parity 1 Stop 300 1200 4800 adjustable rate in baud 600 2400 9600 vV indicates the active rate Select a new communication rate with a v lt gt F3 VAL confirms the user selected rate V appears in front of the newly selected rate F1 SAV steps back to the measuring mode and saves the modifications SAVE displays F4 ESC steps back to the previous screen DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg
30. G10A User manual Version 10 2010 gip DH Budenberg penari The Pressure Reference PAS u Password confirmation MC Coefficient PM of the DPM H e BE DPG measuring range according to the 0 07 bar selected measuring block RPC Head temperature probe resistance 100 02 ee OO rn Fol bel ee Se Penn ee u ee smv External calibration masses densit 7920 SPC Piston cylinder Kn 20 000123 SI Span Pirani 1 03 DPG10A onl STS 0 not bus T 1 Cell tarring aa TA ok or TL not ok Lae Ambient temperature EMM sensor 23 2 C measurement Wu Standard s tarring TAR S a En BE Be Kn unit bar or psi O bar kg 1 psi kg Zee a men pe Calibration indication indication ern Pressure stability selection 0 01 E unit 1 Commands which are 20000 series compatible The commands which are indicated with can be used either to read or to determine a value Example PUN 4 the selected unit is the mbar PUN 5 5 the newly selected unit is the psi As soon as the user transmits the first command REM displays and the keyboard is locked The command LCL must be used in order to have access to the keyboard DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE
31. ICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 77 82 The Pressure Reference After the user has edited the password he steps back to the EMM menu and then he can press F2 EDT again to run the relative humidity sensor calibration The following display is RELATIVE HUMIDITY The humidity value is expressed in Select a figure from the numeric pad with a v lt gt to edit a new value Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF displays the default relative humidity 50 F1 SAV saves the new value and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification 11 3 2 3 Temperature sensor calibration Select Ta or Tb from the EMM menu F4 ESC steps back to the main run screen F2 EDT edits the relative humidity percentage which is given by the reference instrument If a password has been defined and if the user has not still modified any other password protected element MEASURING HEADS and PARAMETERS menu RESET and ATMOSPHERIC PRESSURE sub menus editing the reference atmospheric pressure is protected by password After the user has edited the password he steps back t
32. NITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 a DH Budenberg Page 57 82 The Pressure Reference COM Description Examples DAT Description Examples DIG Description Remarks Examples ERR Description Examples RS232 communication rate in baud Sent COM Reply COM 9600 Sent COM 2400 Reply 2400 Sent COM 3000 Reply rate is 300 600 1200 2400 4800 9600 Date of the operation Sent DAT Reply DAT 16 04 1997 Sent DAT 16 04 1997 Reply 16 04 1997 Sent DAT 16041997 Reply because the format is incorrect Selection of the resolution according to the number of digits The resolution of the pressure value is displayed in the selected unit The minimal digit is 0 and the maximal digit is 7 Sent DIG Reply DIG 2 Sent DIG 3 Reply 3 Sent DIG 9 Reply because the figure 0 7 Check error code Sent ERR Reply ERR 0 no error Sent ERR Reply ERR 1 communication problem The error code is reset when it is read ESC Description Examples DH Budenberg SA FRANCE DH Budenberg FZCO UNITED ARABES EMIRATES Cancellation of the modifications made after the latest saving Sent ESC Reply ESC Y reading OK Sent ESC Reply ESC N reading not Ok DH Budenberg Worldwide DH
33. NITED STATE of AMERICA DH Budenberg PTY LTD AUSTRALIA an DH Budenberg The Pressure Reference MVL Description Example NBA Description Examples NBC Description Examples NPC Description Examples OPI Description Example PAC Description Example DH Budenberg SA FRANCE DH Budenberg FZCO UNITED ARABES EMIRATES Page 60 82 Instantaneous air mass density EMM measurement in Kg m Sent MVL Reply 1 19 Kg m External barometer serial number Sent NBA Reply NBA 9732 Sent NBA 11832 Reply 11832 Selected measuring head serial number Sent NBC Reply NBC 9732 Sent NPC 99101 Reply 99101 Selected piston cylinder assembly serial number Sent NPC Reply NPC 9879 Sent NPC 9979 Reply 9979 Offset of the Pirani sensor in Pascal Sent OPI Reply OPI 0 5 Sent OPI 0 3 Reply 0 3 Coefficient PA of the DPM in Pascal Sent PA Reply 0 32157 DH Budenberg Worldwide DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 DPG10A User manual Version 10 2010 a DH Budenberg Page 61 82 The Pressure Reference PAS Description Password validation Remark It is not possible to define a password by RS If a password has been defined it is necessary to confirm it in order to be able to modify a
34. PG10A ATM Ambient atmospheric pressure EMM hPa 1013 hPa sensor measurement BE Den 1 1 S le BEE Bean Initialisation of the external barometer EEE BRM 0 or BRM 1 ee Calibration CAL S or CAL N ie RS232 communication rate 9600 ae Date dd mm yyyy 12 05 1997 ale Selection of the number of digits ea Emm a Cancellation of the modifications ESC Y or ESC N Relative ambient humidity EMM sensor 68 3 measurement Identification of the standard version of DPG Ver 3 15 9707 the internal software and serial number Configuration of the measuring cell to work with the cell maximum range Return to local mode LCL OK Internal or external calibration mode I internal or E external Barometric pressure external sensor 101325 Pa measurement Immediate pressure measurement S stable 8952 31 mbar I unstable 8952 31 mbar cae Repeated pressure measurement MPR mbar 8952 31 8953 24 Next stable pressure measurement MPS mbar 8952 31 Reading of the residential vacuum 2 03 Pa Air mass density during the calibration 1 19 kg cm sie Instantaneous air mass density 1 22 kg cm Offset of the Pirani Coefficient Pa of the DPM PAC DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DP
35. Page 47 82 The Pressure Reference 6 7 5 Identifying the DPG10A F3 VAL identifies the DPG10A after the user has selected IDN in the SYSTEM menu A display appears with the standard s name the software version and the serial number 6 7 6 Measuring cell configuration This function enables the users to look at a certain number of DPG10A s highly advanced parameters Those parameters cannot be modified by the user The screen appears with the default values CONFIGURATION VIBRATION STABILITY PROCESS 6 7 7 Activating a beeper F2 ON and F3 OFF respectively activate and deactivate the BEEP which is heard each time you press a key on the DPG10A s pad after you have selected BEEP in the SYSTEM menu 6 7 8 Changing the displaying language F2 EDT selects the menu displaying language after you have selected LANG in the SYSTEM menu The display is with French as default language LAN GUAGE FRANCAIS Vv ENGLISH DEUTSCH ESPANOL vV indicates the active language Select a new language with a v lt gt F3 VAL confirms the language you wish to use V appears in front of the newly selected language Fi SAV steps back to the measurement mode and saves the modifications SAVE displays F4 ESC steps back to the previous screen DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenb
36. RATES INDIA SINGAPORE AUSTRALIA aig DH Budenberg The Pressure Reference 7 REMOTE OPERATION The host computer can communicate with the DPG10A using the RS232C port DPG10A User manual Version 10 2010 Page 52 82 The RS232C port between the computer and the standard s external connector is directly configured the cable is provided by DH BUDENBERG The computer is the master and the standard is the slave The pin designation is as follow PC DPG DB 9 Female DB 9 Male TxD 3 3 RxD RxD 2 2 TxD GnD 5 5 GnD 7 1 Configuration Modulation rate 9600 baud by default Message length 8 bits Start bit 1 Stop bit SI Parity none This configuration is the default configuration when the user initializes the DPG10A He can only change the communication rate with the SYSTEM menu COM or with the COM function described DH Budenberg Worldwide below DH Budenberg SA DH Budenberg LTD FRANCE UNITED KINGDOM DH Budenberg FZCO DH Budenberg PV LTD UNITED ARABES EMIRATES INDIA DH Budenberg Gmbh GERMANY DH Budenberg PTE LTD SINGAPORE DH Budenberg Inc UNITED STATE of AMERICA DH Budenberg PTY LTD AUSTRALIA DPG10A User manual Version 10 2010 gip DH Budenberg Page 53 82 The Pressure Reference 7 2 Command list COMMAND OBJECT UNIT TYPICAL REPLY ABS Test if absolute or gauge mode ABS ON or ABS OFF ABS ON if DPM connected DPG5 or vacuum lt 20Pa D
37. TE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ala DH Budenberg Page 24 82 The Pressure Reference 4 Zeroing the DPG 4 1 Zeroing in gauge pressure mode The user uses this zeroing procedure only when he wants to operate the DPG10A in gauge mode To zero the DPG10A for absolute mode operation refer to 4 2 The DPG10A standard is fitted with a 10 Kg range measuring cell During the power up the DPG10A detects and displays the zero from which the maximum range can be reached If the user notices a slight drift which is due to one of the phenomena that are described below he can zero the standard by pressing TARE This operation consists in setting the measuring head to atmospheric pressure to make pressure measurements Setup for DPG10A LP version Valve 2 3 and 5 are open to the atmosphere Setup for DPG10A HP version Valve 2 is open head is open to atmosphere In order to obtain accurate pressure measurements the user must check that the display indicates stable zero 0 before he starts any measurement DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPOR
38. TED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 abs DH Budenberg Page 38 82 The Pressure Reference Head Num Head serial number P C Num Piston cylinder assembly serial number Kn Piston cylinder assembly conversion coefficient expressed in the coefficient unit A Piston cylinder assembly pressure distortion coefficient in 10 bar Pt100 Head temperature probe value in Ohm at 0 C F4 ESC steps back to the previous screen F2 EDT modifies one of the 4 measuring head parameters previously selected with v lt gt If a password has been defined Cf 7 7 2 and if the user has not still modified any other password protected element PARAMETERS menu RESET ATMOSPHERIC PRESSURE and RELATIVE HUMIDITY sub menus the four MEASURING HEADS menu parameters are protected by password The following display appears as soon as you press F2 for any of the four features PASSWORD ABCDEFGHIJKLMNOPQRSTUVWX The user must then enter the password To enter his password select a letter from the alphabetic pad with A v lt gt a and v make a 5 letter displacement respectively to the left and to the right Press ENTER the selected letter displays above the cursor Repeat the operation until you obtain the desired password The edited letters are displayed with asterisks x x F3
39. V Description Examples SGL Description Examples SI Description Example SMV Description Examples SPC Description Standard reset to its default values Sent RST Reply RST Y Modifications saving Sent SAV Reply SAV Y saving OK Sent SAV Reply SAV N saving not OK Local gravity value in m s Sent SGL Reply GL 9 81000 Sent SGL 9 80732 Reply 9 80732 Cell s measured value in counts 20000 series compatible Sent SI Reply 1058 3 if stable Sent SI Reply 1058 3 External calibration mass material density in Kg m Sent SMV Reply MV 7920 Sent SMV 8000 Reply 8000 Selected piston cylinder Kn Remark Do not forget to define UPC Examples DH Budenberg SA FRANCE DH Budenberg FZCO UNITED ARABES EMIRATES Sent SPC Reply SPC 1 000000 Sent SPC 20 000000 Reply 20 000000 DH Budenberg Worldwide DH Budenberg LTD UNITED KINGDOM DH Budenberg Gmbh GERMANY DH Budenberg Inc UNITED STATE of AMERICA DH Budenberg PV LTD DH Budenberg PTE LTD INDIA SINGAPORE DH Budenberg PTY LTD AUSTRALIA DPG10A User manual Version 10 2010 gi DH Budenberg Page 63 82 The Pressure Reference SPI Description Example STS Description Span of the Pirani sensor Sent SPI Reply 1 02453 Sent SPI 0 99875 Reply 0 99875 DPG10A status Remark The DPG reply STS 1 to any command sent while the DPG is busy
40. again to access the selected menu F1 SAV quits the menu mode and saves all the modifications that have been edited in each of the menus SAVE displays and you step back to the measurement mode F4 ESC quits the menu mode and steps back to the measurement mode without saving the modifications DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ans DH Budenberg Bes The Pressure Reference 6 3 Changing the pressure unit From the measurement mode F1 gives the user direct access to the UNITS menu but he can also press ENTER to access the main run screen select the UNITS menu with A v lt gt then confirm his choice by pressing ENTER again In these two cases the display is PRESSURE UNITS bar mmHg mbar inHg mH20 Correspondences table in Pa 9 806650 x 10 Pa 2 490889 x 10 Pa 1 bar 1 000000 x 10 Pa 1 mmHg 1 333222 x 10 Pa 1 mH20 1 psi 6 894757 x 10 Pa 1 inHg 3 386384 x 10 Pa 1 inH20 1 kg cm2 9 806650 x 10 Pa y appears in front of the active unit the default pressure unit is the mbar 6 3 1 Choosing an engineering unit Select a new engineering unit with a v lt gt F3 VAL confirms the pressure unit you have sel
41. ancy during the calibration The correction of these external parameters is compulsory in order to authenticate the results 9 2 2 Local gravity correction The A piston cylinder surface area allows the pressure calculation with the formula P F A Since the F force is measured by the cell with F m g and the local gravity is only taken into account during the calibration it is necessary to correct the mass value which is displayed by the cell with the g Gn coefficient 9 2 3 Air buoyancy correction The air buoyancy plays an important part in the standard s calibration since the standard does not measure a mass but measures a force The air buoyancy depends on the temperature the relative humidity and the ambient atmospheric pressure These three parameters are measured through sensors which are integrated in the Environment Monitoring Module This allows an automatic correction as well as a real time air buoyancy influence compensation during the calibration Therefore we increase the accuracy of the pressure measurements obtained with the measuring cell The M conventional mass of the internal calibration mass is calculated in normal conditions Pan 1 2 kg m3 g 9 80665 t 20 C m M 1 pan pm During the calibration the air buoyancy is pa and the measured mass ism M 1 pa py The air buoyancy corrected mass is then Meor M 1 pa Pm 1 Pan Pm SO Mor M Pm u Pa Pm E Pan
42. anual Version 10 2010 u DH Budenberg Page 76 82 The Pressure Reference After the user has edited the password he steps back to the EMM menu and then he can press F2 EDT again to run the pressure sensor calibration The following display is ATMOSPHERIC PRESSURE The pressure value is expressed in Pa Select a figure from the numeric pad with a v lt gt to edit a new value Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF displays the default atmospheric pressure value 101325 Fi SAV saves the new pressure value and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification 11 3 2 2 Relative humidity sensor calibration Select Hum from the EMM menu F4 ESC steps back to the main run screen F2 EDT edits the relative humidity percentage which is given by the reference instrument If a password has been defined and if the user has not still modified any other password protected element MEASURING HEADS and PARAMETERS menu RESET and ATMOSPHERIC PRESSURE sub menus editing the reference atmospheric pressure is protected by password Refer to 11 3 2 1 to set the password DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMER
43. atest stored configuration Do not forget to select the voltage before powering up the standard DPG8 II Do not forget to connect the standard only to an earthed socket The DPG10A must be connected to the mains with the power cable provided with it or with a similar cable Protect the plug and the socket against humidity After the DPG10A is properly set up and running it must be zeroed in order to adapt its measurement to current ambience conditions see chapter 4 After the DPG10A is properly set up running and zeroed it must be calibrated in order to adapt it to ambience conditions of operation see chapter 5 If the user wants to make high level accuracy measurements within particular applications it is recommended to take the following precautions before starting each pressure measurement cycle or before calibrating the DPG10A Power up the standard at least 4 hours before the beginning of the measurements Place the standard in premises where the temperature is stable Stress the force sensor by applying a force to it several times one after the other Stress the measuring head by exerting a pressure on it several times one after the other this operation enables to stress simultaneously the force sensor Do not move the standard while the measurement is being done DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STA
44. ation mode Selection of the RS232C communication rate Identification of the DPG10A Modification of the measuring cell s configuration Activation of the beeper vindicates that the beeper is activated Selection of the displaying language Select the date you wish to modify with a v lt gt The functions of F2 and F3 depend on the selected parameter 6 7 1 Displaying modifying date and time F2 EDT displays the standard s date and time after you have selected DATE in the SYSTEM menu The following display appears with the date and time DATE TIME DATE 27 11 1997 16 40 13 dd mm yyyy hh mm ss F2 DAT modifies the date DH Budenberg SA FRANCE DH Budenberg FZCO UNITED ARABES EMIRATES DH Budenberg Worldwide DH Budenberg LTD DH Budenberg Gmbh UNITED KINGDOM GERMANY DH Budenberg PV LTD DH Budenberg PTE LTD INDIA SINGAPORE DH Budenberg Inc UNITED STATE of AMERICA DH Budenberg PTY LTD AUSTRALIA DPG10A User manual Version 10 2010 an DH Budenberg Page 43 82 The Pressure Reference The display is Select a figure from the numeric pad with A v lt gt to edit a new date Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired date F3 DEL erases the latest user edited figure F2 DEF displays the date format F1 SAV saves the new date and steps back to the previous screen DATA SET displays F4 ESC steps back to th
45. ation plastic cover fixed by those screws This transportation cover must be removed prior to the top part installation When removing the transportation cover always handle the measuring head upside down transportation cover on top to prevent the piston from dropping DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 abs DH Budenberg Page 21 82 The Pressure Reference Once the piston protection cover has been removed the piston head can be seen The piston head is equipped with one ball bearing designed to drive the piston in rotation One matching slot in the driving mechanism enclosed in the measuring head base is machined to receive this ball bearing 3 2 3 2 Base At delivery the measuring head base is protected with a white transportation protection cover Remove this cover in order to install the measuring head i Measuring head base DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010
46. cuuner nannten nnna ernennen anna nen na adios 42 6 7 1 Displaying modifying date and time zerersnennennennnnnnnennenn een nenn nun nun nun nn n nennen 42 6 7 2 Defining a Password ara as 45 6 7 2 1 Operating principle and use Of the password zesnenseneenennennnnnnnn nun nun nun ann nennen 45 6 7 2 2 Cancelling and modifying the password zssasserennnnennnnnn nennen nn nn nen nennen 45 6 7 3 Selecting the calibration Mode u zuurennenennnnnn nenn nennen nun nennen nun nennen nennen 46 6 7 4 Selecting the RS232C communication rate zeressenennnnennnnnnnn nenne nennen nennen 46 6 7 5 Identifying the DPGIOA uunu u 2 ne a a ee 47 6 7 6 Measuring cell configuration uuessenerennannnnennnnnn nenn nenn nenn nennen nun nennen nenn nen 47 6 7 7 Activating a beeper rum un a a a tenes ded ee 47 6 7 8 Changing the displaying language zururssrarnenen nenn nennen nennen nn nennen nen nennen nen 47 6 7 9 Quitting and or saving the modifications rur4urernnnen ann en nn nennen nn nn une ened 48 6 8 Modifying the constant parameters neunennennennennennennennnnnnnennenn nun nun nun nun nun une n nennen 48 6 8 1 Modifying the gravity uneaeeen ee a na 49 6 8 2 Modifying the mass density sessenennnnnnnnnnnnnennennennen nennen en enn nenne nnn nun nun nun nennen 50 6 8 3 Modifying the barometer serial number 44 r4sHen nn nennen ernennen nun nennen nennen 50 6 8 4 Quitting and or saving t
47. described in 4 2 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 28 82 The Pressure Reference Press the CAL button to Enter in the CAL menu CALIBRATION Press F1 gt EXE to launch the calibration procedure If the load exceeds 0 the message WARNING ZERO ERROR displays If the cell s measurement is unstable the message WARNING UNSTABLE displays Calibration can take about 1 or 2 minutes according to the stability Wait until the calibration is finished A beep can be heard at the end of the calibration and the display indicates whether the calibration has been successful COMPLETE displays or not ABORT displays The calibration cannot be run when the measurement is not stable vibrations draughts In this case the user must protect the DPG10A from the environment disturbances and start again the procedure The display goes back to the measurement mode by pressing F4 ESC Once it is done the user must prepare the DPG to absolute measurement by removing the vacuum on the piston cylinder and keep the vacuum in the reference chamber To do that with the DPG10A LP version First close the vacuum chamber
48. displays the default user unit coefficient 1 000000 F1 SAV saves the coefficient and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification 6 3 4 Editing the user unit label F3 LBL edits the user unit label The user can define a 4 character long name for this new unit The following display is USER UNIT LABEL ABCDEFGHIJKLMNOPQRSTUVWX Select a letter from the alphabetic pad with A v lt gt to edit a new label a and v make a 5 letter displacement respectively to the left and to the right Press ENTER the selected letter displays above the cursor Repeat the operation until you obtain the desired label F3 DEL erases the latest user edited letter F2 DEF displays the default user unit label USER F1 SAV saves the label and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous screen without saving the modification DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 LE DH Budenberg Page 35 82 The Pressure Reference 6 3 5 Quitting and or confirming the modifications F1 VAL steps back to the previous screen and confirm the user unit
49. e previous menu without saving the modification Make sure of using the right format when editing the date dd mm yyyy If the user does not respect this format DATA NOT SET will display when he saves the modification with F1 F3 TIM modifies the time The display is Select a figure from the numeric pad with a v lt gt to edit a new time Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired time F3 DEL erases the latest user edited figure F2 DEF displays the time format F1 SAV saves the new date and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification Make sure of using the right format when you edit the time hh mm ss If the user does not respect this format DATA NOT SET will display when he saves the modification with F1 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ala DH Budenberg Page 44 82 The Pressure Reference F4 ESC steps back to the previous screen F3 VAL resets the standard to its default values after you have selected RESET in the SYSTEM menu If a password has been defined Cf 7 7 2 and i
50. each time he first tries to modify one of these protected data The previous screen displays the user edits his password then confirms it by pressing F1 SAV DATA SET displays if the password is correct DATA NOT SET displays if the password is not correct The password which is edited for the first modification remains valid and the user does not need to edit it again for the other modifications as long as he has not quitted the menu 6 7 2 2 Cancelling and modifying the password In order to cancel a password the user first has to edit it same procedure as for the definition and confirms it by pressing F1 SAV Then he just has to edit the default password by pressing F2 DEF to cancel it and finally confirms the cancellation by pressing F1 SAV In order to modify a password the user first has to edit it same procedure as for the definition and confirms it by pressing F1 SAV Then he just has to edit a new password as for the definition and finally confirms the modification by pressing Fi SAV DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 an DH Budenberg Page 46 82 The Pressure Reference 6 7 3 Selecting the calibration mode F3 VAL changes the DP
51. ected The sign V appears in front of the newly selected unit 6 3 2 Defining a user unit The user unit function enables to program a unit which differs from the default pressure units for example hPa F2 USR edits a user unit The following screen displays with Coef 1 and Label USER as standard values USER UNIT 1 00000 The coefficient is written Coef a x with x 1 Pa ex 1 if the applied pressure is 1 bar the Coef is 2 and the Label USER the 1 bar pressure which is displayed in the user unit is equivalent to 50 000 USER ex 2 if the applied pressure is 1 bar the Coef is 500 and the Label UNIT the 1 bar pressure which is displayed in the user unit is equivalent to 200 UNIT DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 34 82 The Pressure Reference 6 3 3 Editing the user unit coefficient F2 CFT edits the coefficient The display is USER UNIT COEF Select a figure from the numeric pad with a v lt gt to edit a new value Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF
52. enu short cut a F2 HEADS menu short cut F3 SETTINGS menu short cut F4 absolute and gauge mode validation it is only possible to work in absolute pressure measurement mode if the barometer is connected and activated 7 ENTER main screen entry a and vcontrast adjustment and lt and gt back lighting off and on The back lighting switches on automatically when the user powers up the standard The back lighting stops automatically if the user does not press any key during 10 minutes Press the gt key to switch on the back lighting DH Budenberg SA FRANCE DH Budenberg FZCO UNITED ARABES EMIRATES DH Budenberg Worldwide DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 un DH Budenberg Page 18 82 The Pressure Reference 3 INSTALLATION 3 1 Unpacking The DPG10A pressure standard is delivered in a custom container especially designed to maintain the performances of the instrument in normal transportation conditions It is recommended to keep this container for any further transportation The base the measuring head and the accessories are located in specific places ready for use Each element has been carefully checked and tested by the DH BUDENBERG SA COFRAC accredited laboratory However should you notice any damage when unpacki
53. erg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 48 82 The Pressure Reference 6 7 9 Quitting and or saving the modifications F1 SAV steps back to the measurement mode and saves the modifications SAVE displays F4 ESC steps back to the main run screen The user will also be able to save the modifications by pressing F1 SAV when he quits the main run screen 6 8 Modifying the constant parameters From the measurement mode press ENTER to access the main run screen select the PARAMETERS menu with a v lt gt then confirm your choice by pressing ENTER again The display is PARAMETERS Gravity 9 80665 Mass dens 7920 Barometer 56321 Gravity Local gravity Mass dens Calibration masses material density for external calibration Barometer Serial number which has to be previously edited before connecting the barometer Select the parameter you wish to modify with a and v F2 EDT edits a new value for the selected parameter If a password has been defined and if the user has not still modified any other password protected element MEASURING HEADS menu ATMOSPHERIC PRESSURE RELATIVE HUMIDITY and RESET sub menus the PARAMETERS menu is protected by password The following display appears as soon as you press F2 PASSWORD ABCDEFGHIJKLMNOPQRSTUVWX The user must then enter
54. essure in hPa Mvol Air mass density in kg m F4 ESC steps back to the main run screen With F2 the user has the ability to calibrate the atmospheric pressure sensor by editing the atmospheric pressure value displayed by the reference barometer The barometric pressure sensor is thus calibrated The user also has the ability to calibrate the relative humidity sensor by editing the value displayed by a reference instrument The user also has the ability to calibrate the temperature sensor by editing the value displayed by a reference instrument 6 6 Selecting a measuring head From the measurement mode F2 gives the user direct access to the HEADS menu but he can also press ENTER to access the main run screen select the HEADS menu with A v lt gt then confirm his choice by pressing ENTER again The display is MEASURING HEADS Head 1 7985 Head 2 7995 Head 3 NONE Head 1 serial number and head measuring range in bar psi kPa or MPa V appears in front of the active head head 1 is the default head 6 6 1 Modifying the head parameters Select the head you wish to modify with a v lt gt F2 EDT modifies the parameters of the head you have selected The following display is INFORMATION Head Num 7985 PIC Num 7324 5 bar kg _ 0 0000 bar 99 98 Ohm DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNI
55. f the user has not still modified any other password protected element MEASURING HEADS and PARAMETERS menus ATMOSPHERIC PRESSURE and RELATIVE HUMIDITY sub menus the RESET menu is protected by password The following display appears as soon as you press F3 PASSWORD ABCDEFGHIJKLMNOPQRSTUVWX The user must then enter his password To enter the password select a letter from the alphabetic pad with a v lt gt a and v make a 5 letter displacement respectively to the left and to the right Press ENTER the selected letter displays above the cursor Repeat the operation until you obtain the desired password The edited letters are displayed with asterisks x F3 DEL erases the latest user edited letter F2 DEF displays the default password and enables to cancel the password F1 SAV confirms the password and steps back to the previous screen DATA SET displays if the password is correct DATA NOT SET displays if the password is not correct F4 ESC steps back to the previous screen without saving the password After having edited the password the reset is actually run only if the user quits the menu mode by confirming the reset with F1 Only qualified people with knowledge of reset consequences should use the reset function since it changes the current settings to factory default values The reset function should never be used experimentally DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH
56. f the user uses its own vacuum sensor The user must add the value of the vacuum sensor to the pressure indicated by the DPG When ON is selected the residual vacuum measured by the Pirani sensor is automatically added to the pressure measurement The A indicator on the main screen is displayed in normal inverse video when OFF ON is selected 6 4 5 Quitting and or saving the modifications F1 A SAV step back to the measurement mode and saves the modifications SAVE displays F4 ESC steps back to the main run screen The user will also be able to save the modifications by pressing F1 SAV when he quits the main run screen 6 5 Knowing the ambient conditions From the measurement mode press ENTER to access the main run screen select the EMM menu with a v lt gt then confirm your choice by pressing ENTER again The display is lt 23 5 C 24 6 C 54 1013 hPa 1 19kg m DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 37 82 The Pressure Reference Ta Air temperature at the level of the internal calibration mass in C Tb Piston cylinder assembly temperature in C Hum Relative humidity in Patm Atmospheric pr
57. he modifications uz4urerHn nenne nenne nennen nenn nenn anne 51 7 REMOTE OPERATION 2 ae ae a rien 52 7 1 CONfigUration es a nenne 52 7 2 Command list ac ea nn rennt 53 Tied SYNIIX aa een 55 8 COMMAND DESCRIPTION uususanansannnsansunan nun una nn wanna san nun nn nen nenn anne 56 9 METROLOGY 2 nei eier 66 9 1 Fundamental principle Calculation of a pressure with the general formula 66 9 2 Automatic pressure corrections unersnenennnnnnnennnnnnnnnnn nun n en n nennen nenn nenn nennen enna 66 9 2 1 Kn determination anche ned 67 9 2 2 Local Gravity correction nennen ern 67 9 2 3 Air buoyancy Correction nennennnnnennnnnennennennennnnnnn nun nun nun nun nnnnnnnnnnnnnnnnnnnnnnnennnnnenn 67 9 2 4 Measuring head temperature correction zuusesansenannnnnnnnnnnnennn nenne nennen nennen 67 9 2 5 Piston cylinder pressure distortion correction uus2ssnsennnennnnnnnnnnnnnnnnnnnnnnnn nenn 68 9 2 6 Remaining Pressure in vacuum chamber 4ursr4nrernn nenne nennen nn nenn nenne nennen 68 10 TECHNICAL DATA un ae ea Be ee ee anlar 69 10 1 Dimensions Weight Power supply nesensensnnennnnnnnnnnnnnennennennnn nennen en ene nenne nun nun nun 69 10 2 Power SUPDIY enge 69 10 3 Measurement cell nes eb a a a N 69 10 4 Environment Monitoring Module uzssuus nnenannnnnn nennen ee eee nena eee nena nena 69 10 5 CE Deelaration ann ee nn ne nee 69 11 MAINTENANCE weiss Se re eh 70 11 1 General Mai
58. is also possible to command the ACF from a remote computer DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh FRANCE UNITED KINGDOM GERMANY DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD UNITED ARABES EMIRATES INDIA SINGAPORE DH Budenberg Inc UNITED STATE of AMERICA DH Budenberg PTY LTD AUSTRALIA DPG10A User manual Version 10 2010 ala DH Budenberg Page 8 82 The Pressure Reference Measuring cell Internal standard mass Computer connection EMM AUNE The user can optionally use a set of external calibration masses to replace the internal ACF in order to check the measuring cell linearity It is also possible to use these masses to run an external calibration 1 2 3 Environment Monitoring Module The measuring cell measurement changes according to the evolution of ambient conditions The use of the Auto Calibrating Function ensures the easy adaptation of the measurement according to the new environment conditions whenever it deems it necessary Thereby the DPG10A is equipped with an Environment Monitoring Module which enables to determine whether it is worthy to use the ACF The EMM is fitted with 3 sensors for ambient temperature relative humidity and atmospheric pressure and their electronic components When the ACF is in use the environment conditions for which the measurements carried out by the measuring cell are valid are measured by the EMM and stored in the interna
59. isolation valve 2 to keep the vacuum in the reference chamber Then slowly open valve 3 to go back to atmosphere The filter 4 will avoid sucking dust or impurities Open valve 5 Close valve 3 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 29 82 The Pressure Reference To do that with the DPG10A HP version First close the vacuum chamber isolation valve 2 to keep the vacuum in the reference chamber Physically disconnect the vacuum tube on top of the head and replace it by the instrument under test line The DPG is now ready for absolute measurement Valve 2 must remain always closed during absolute measurement and the vacuum pump running Take care to maintain continuously a reference vacuum between 2 and 4 Pa DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 gig DH Budenberg Page 30 82 The Pressure Reference 5 Running an external calibratio
60. it a new value Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF displays the gravity default value 9 80665 F1 SAV saves the new number and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 als DH Budenberg pega boise The Pressure Reference 6 8 2 Modifying the mass density Press F2 after having selected Mass dens and entered the password as explained The display is MASS DENSITY Select a figure from the numeric pad with a v lt gt to edit a new value Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF displays the mass set mass density default value 7920 F1 SAV saves the new number and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification 6 8 3 Modifying the barometer serial number Press F2 after having
61. kward and forward motion 5 Remove the measuring elements from the solvent 6 Wipe the piston and the cylinder with a dry clean and non fluffy cloth 7 Dry the piston and the cylinder with a clean nitrogen spray control that the pieces are perfectly dry and set them together 8 Before installing the measuring element in its measurement head rotate gently in your fingers the piston in its cylinder If the piston rotates delicately well install the measuring element in its measurement head 9 If the piston does not rotate well or stalls repeat the cleaning operation starting at 4 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 71 82 The Pressure Reference 11 3 Piston cylinder assembly tool P N 60417 for 0 2 bar kg PCA amp P N 60864 for 0 5 bar kg PCA 1 Put the piston on a table 2 Put the tool on the cylinder and hold it with one hand 3 With the other hand insert the piston in the cylinder DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED
62. l memory After the calibration the EMM keeps on monitoring the evolution of the ambient conditions in real time Whenever these conditions vary in proportions that might noticeably alter the measuring performance the DPG10A displays the CAL warning flag to advise the user to command the ACF in order to readjust the measuring cell to the new operating conditions The EMM warns the user according to the evolution of the environment conditions Therefore it monitors the difference between the conditions that were stored during the calibration at tg and the conditions measured at t when the operation took place Consequently the sensors with which the EMM is fitted are used for their sensitivity and short term repeatability and not for their accuracy The warning flag is also sent to the command software when the DPG10A is operated from a remote computer DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 cl DH Budenberg es The Pressure Reference 1 3 Measuring ranges The DPG10A s measuring range depends on two parameters The measuring head piston cylinder assembly Kn The electronic cell measuring range 100000 g The various Kn make it possible to obtain seve
63. lays F4 ESC steps back to the previous menu without saving the modification 6 6 3 Modifying the piston cylinder assembly serial number Press F2 after having selected P C Num and entered the password as explained The display is HEAD 1 P CNUMBER Select a figure from the numeric pad with v lt gt to edit a new number Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired number F3 DEL erases the latest user edited figure F2 DEF displays the usual piston cylinder assembly serial number NONE F1 SAV saves the new number and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 40 82 The Pressure Reference 6 6 4 Modifying the piston cylinder assembly conversion coefficient Press F2 after having selected Kn and entered the password as explained The display is HEAD 1 COEFFICIENT Select a figure from the numeric pad with a v lt gt to edit a new value Press ENTER the selected figure displays above the cursor Repeat the opera
64. menu without saving the modification 6 6 6 Selecting the measuring head F3 VAL select the measuring head you wish to use then display in front of the newly selected measuring head The user must previously enter the measuring head serial number before selecting it 6 6 7 Quitting and or saving the modifications F1 SAV steps back to the measurement mode and saves the modifications SAVE displays F4 ESC steps back to the main run screen The user will also be able to save the modifications by pressing F1 SAV when he quits the main run screen DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA alls DH Budenberg The Pressure Reference 6 7 Customizing the DPG10A DPG10A User manual Version 10 2010 Page 42 82 From the measurement mode press ENTER to access the main run screen select the SYSTEM menu with a v lt gt then confirm your choice by pressing ENTER again The display is DATE RESET PASSW CAL COM IDN CONF BEEP LANG SYSTEM CAL COM Display and modification of the date and time Reset of the DPG10A to its default values Definition of a password to protect the sensitive data vindicates that a password has been defined Selection of the DPG10A s calibr
65. n Emission and immunity tests made at EMITECH France Year of CE labelling 97 h Aubervilliers October 23 t 1997 G SPARKES General Manager DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 abs DH Budenberg Page 81 82 The Pressure Reference Appendix 2 ADAPTATION KIT FOR GAUGE MEASURING HEAD It is now possible to use the DPG5 and DPG10G head with the DPG10A base Two kits are available P N 61497 allows using the old type 110 111 410 710 head P N 61453 allows using NB series of 110 111 410 710 head The kit is composed of an adaptation bloc and a special coupling rod to link the piston cylinder of the gauge head to the DPG10A measuring cell It allows to extend the range of the DPG 10A up to 500 bar 410 NB HEAD DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA alla DH Budenberg The Pressure Reference DH Budenberg SA 56 Rue des Ecoles BP 125 93303 Aubervilliers France Tel 33 1 48 39 83 00 Fax
66. n The zeroing procedure described in chapter 4 describe the use of the internal auto calibration function which is recommended it is however possible to calibrate the DPG using an external mass set 5 1 Setting up Place the mass carrier then zero the standard according to the above procedure If ordered separately External calibration requires a set of standard masses and a mass carrier optionally available from DH Budenberg Do not execute an external calibration with masses that do not have the proper uncertainty and are not properly adjusted to nominal value as this would damage the measurement quality of the DPG10A Enter the density of the masses in the DPG10A menu see 7 8 Select External Calibration in the system menu see 7 7 3 Place the mass carrier then zero the DPG10A by pressing the TARE button Install the cover to protect from any perturbation Option must be ordered separately Follow the screen requirements TEP ON 5 2 Running the external calibration Press CAL The display is CALIBRATION EXTERNAL DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ala DH Budenberg Page 31 82 The Pressure Reference Press gt F1
67. nberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 u DH Budenberg Page 32 82 The Pressure Reference 6 MENU MODE 6 1 Introducing the menu mode 6 1 1 Operating principles After the user has powered up and initialized the DPG10A from the measurement mode ENTER steps the user through the main run screen This key also gives access to the other menus from the main run screen The A v lt gt keys enable to move within a menu They also enable to select a figure from the numeric pad or a letter from the alphabetic pad by moving the cursor when one of these two pads is displayed ENTER then displays the selected figure or letter According to the menu in use F1 F2 F3 and F4 have a specific action The display then indicates the function of each key Fi usually stores a value which has been edited with the pad or steps back to the measurement mode by quitting the menu mode and saves the modifications F4 usually steps back to the previous screen from the main run screen this key also enables to quit the menu mode without saving the modifications 6 2 Accessing a function in menu mode After the user has powered up and initialized the DPG10A from the measurement mode ENTER steps the user through the main run screen The main run screen displays UNITS HEADS SETTINGS SYSTEM EMM PARAMETERS Select one of the six menus with the a v lt gt keys then press ENTER
68. ng contact DH BUDENBERG or their representatives immediately 3 2 Setting up The set up instructions are similar for the first and further set ups 3 2 1 Locating the DPG10A The location selected for the use of high level performance pressure standards determines the quality of the measuring results Select a solid stable support located in a place which is far away from any vibration draught doors windows heating systems and air conditioning vents Avoid any vibration The standard cannot be usable in unstable environments However to provide accurate results make appropriate adjustment of the vibration adapter in the SYSTEM menu CONF Avoid any direct solar rays and any significant temperature fluctuations Use DPG10A pressure balances exclusively in closed premises Do not use DPG10A standards in explosive atmospheres Never use DPG10A standards in permanently humid or dusty environments DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 als DH Budenberg Page 19 82 The Pressure Reference 3 2 2 Levelling the DPG10A To obtain repeatable measurement results at any time it is absolutely necessary to place the standard on a stable surface in a p
69. ntenance ussusennennnnnonnennn nun non nn nnn nn nun nun nun nun nun nun nun nun nun ESSERE EEE nenn 70 11 2 Cleaning ea ie ar bs 70 11 2 1 Cleaning the Piston Cylinder Assembly sesseneenennenn none nn nun nun teen nun nennen nennen nenn 70 11 3 Piston cylinder assembly tool wo non en ennennennnnnnnn nun nun nn n nennen nenne nun nenn 71 11 4 Changing the components un aa an aaa 73 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 LE DH Budenberg ee The Pressure Reference 11 4 1 Changing the fuses ae i ei vevenies renee cin ved vies eee aed vee ease treed cries nade eens 73 115 5 Calibrations a a en 74 11 5 1 Standard s calibrations scsi cvs 2 0 en a nn rn nn caves 74 1 1 9 1 1 Frequency ur ann an nn cave N dans nn ead ehele 74 11 5 1 2 Method and means una enable 74 11 5 2 Ambient conditions Sensors calibration ccececee cece nn non nun nun nn nn nun nennen nennen nenn 74 11 5 3 Atmospheric pressure sensor calibration usssssseneen een none nenne nun nun nun nennen nennen 75 11 3 2 2 Relative humidity sensor calibration z2s42sssen seen nennen nun nun nun nun nennen nennen nenn 76 11 3 2 3 Temperature sensor calibration cece sonen
70. o the EMM menu and then he can press F2 EDT again to run the ambient temperature sensor calibration The following display is AMBIENT TEMPERATURE DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 un DH Budenberg Page 78 82 The Pressure Reference The temperature value is expressed in C Select a figure from the numeric pad with a v lt gt to edit a new value Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF displays the default relative humidity 50 o F1 SAV saves the new value and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous menu without saving the modification Note The temperature probe of the head must be used to set the new calibration data Remove the probe from the head and place it close to your own reference Wait until the temperature has stabilized and then set the value of the reference The ambient temperature is the temperature inside the DPG where the internal mass is located It is normal to 3 to 5 degrees Celsius difference between the internal temperature sensor of
71. of the pump Used a higher capacity vacuum is not high enough pump DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 gip DH Budenberg Page 80 82 The Pressure Reference Appendix 1 CE DECLARATION CONFORMITY CE DECLARATION We DH BUDENBERG S A 56 rue des Ecoles BP 125 93303 AUBERVILLIERS Cedex FRANCE declare that the product DIGITAL PISTON GAUGE DPG complies with the clauses of the Directive of the Council Directive Compatibilit Electromagn tique Electromagnetic Compatibility Directive n 89 336 CEE dated May 3 th 1989 modified by the n 92 31 CEE directive dated May 12t 1992 and by the n 93 68 CEE directive dated July 22 t 1993 Directive Basse Tension Low Tension Directive n 73 23 CEE dated February 19t 1973 modified by the directive 93 68 CEE dated July 22t 1993 and is in conformity with the following norm s or other normative document s EN 50082 1 Ed 92 Emission with the 89 336 CEE directive EN 55022 B Class Ed 87 Immunity with the 89 336 CEE directive EN 61010 Safety rules for the use of measuring regulating and laboratory electric instruments with the 73 23 CEE directive Further informatio
72. osition which is as close as possible to horizontal Leveling feet and two bubble levels ensure the adjustment of the instrument according to the working surface Screw the leveling feet at the maximum then unscrew the foot or the feet which is are opposed to the bubble and to the level centre The DPG10A is in the correct horizontal position when the air bubbles are right in the middle of the levels Several leveling stages are usually necessary to reach a horizontal position Take time to do it accurately will warranty adequate pressure measurements The description below pertains to start up with the piston cylinder already installed Position the standard accurately in using the 2 leveling feet and the bubble levels DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ID DH Budenberg ag The Pressure Reference 3 2 3 Installing the measuring head top part The measuring head and piston cylinder must be perfectly clean before being installed For cleaning instructions refer to chapter 11 1 3 2 3 1 Measuring head The measuring head top part is attached to its base by the mean of 3 screws At delivery the piston cylinder assembly is protected by the mean of a transport
73. protected datum The password is valid as long as SAV or ESC has not been executed Examples Sent PAS Reply PAS 1 password defined Sent PAS ABCD Reply PAS 1 password confirmed Sent PAS Reply PAS O password not defined Sent PAS ABCD Reply PAS 0 password not defined or incorrect PMC Description Coefficient PM of the DPM Example Sent PM Reply 1 00203 PUN Description Pressure unit value Remark The equivalence figure unit is 0 Pa 1 kPa 2 Mpa 3 bar 4 mbar 5 psi 6 mmHg 7 inHg 8 mH gt 0 9 inH 0 10 kg cm2 11 Cnts 12 User Exemples Sent PUN Reply PUN 4 Sent PUN 3 Reply 3 Sent PUN 15 Reply because the number is gt 12 RNG Description Standard measuring range according to the selected measuring block Example Sent RNG Reply RNG 100 RPC Description Head s temperature probe resistance in Ohm Remark This is the probe resistance value at 0 for the selected head Examples Sent RPC Reply RPC 99 98 Sent RPC 99 99 Reply 99 99 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA an DH Budenberg DPG10A User manual Version 10 2010 Page 62 82 The Pressure Reference RST Description Example SA
74. ral measuring ranges up to 5000 mbar The measuring heads are interchangeable which ensures an accurate adaptation of the DPG10A according to the range of the instruments to be calibrated DESIGNATION RANGE ___ RESOLUTION kn DPG10A A02 0 2000 hPa 0 29 psi 0 2 Pa 29 E psi 200 hPa kg 2 9 psi DPG10A AO5 0 5000 hPa 0 72 5 psi 0 5 Pa 725 E psi 500 hPa kg 7 25 psi _ 6 Pr 0 1 MPa 0 145 psi 1 Pa 1 45 E psi 0 1 Mpa kg 14 5 psi DPG10A A20 0 2 Mpa 0 290psi 2 Pa 2 9 E 6 psi 0 2 Mpa kg 29 psi Note The Kn nominal coefficient is a conversion coefficient which is specific to each type of piston cylinder assembly whose surface area is such that the piston cylinder assembly converts a Kn bar pressure in 1 Kg in normal operating conditions The exact K will have to be defined There is two different model of DPG10A the LP version and the HP version The LP version can works up to 10 bar maximum This DPG is equipped with an integrated automatic switching lubrication circuit module The HP version can works above 10 bar This DPG is equipped with an external automatic switching lubrication module P N 60593 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A U
75. ration should be performed Example Sent TST Reply TST S Reply TST N error instabilities pressure applied Reply TST 2 UPC Description Kn unit in bar psi kPa or MPa Remark The equivalence figure unit is 0 bar Kg 1 psi Kg 2 kPa Kg 3 MPa Kg Examples Sent UPC Reply UPC 0 Sent UPC 2 Reply 2 Sent UPC 5 Reply because the figure 0 1 2 3 UUC Description User unit coefficient Remark Coef a x and x 1 Pa Examples Sent UUC Reply UUC 20 420000 Sent UUC 7 42 Reply 7 4200000 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 gi DH Budenberg Page 65 82 The Pressure Reference UUN Description User unit label Examples Sent UUN Reply UUN USER Sent UUN USER Reply USER WNG Description Calibration indication Examples Sent WNG Reply WNG 0 the calibration does not have to be run Sent WNG Reply WNG 1 the calibration has to be run ZST Description Pressure stability selection in P s Remark ZST has to be within 1 and 1000 times the displaying resolution digits number Examples Sent ZST Reply ZST 0 01 Sent ZST 0 04 Reply 0 04 Sent ZST 2 Reply because the area is
76. re measurement 9 2 5 Piston cylinder pressure distortion correction 1 P is the correction term for the piston cylinder pressure distortion A is called the distortion coefficient The DPG10A has a re entrant mounting the is thus experimentally determined 9 2 6 Remaining Pressure in vacuum chamber Pyac is the remaining pressure in the vacuum chamber The value of Pyac is measured by a built in Pirani Gauge and displayed on the bottom line of the front display This value is added to the pressure only if the option has been selected in the menu see 7 4 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 LE DH Budenberg Page 69 82 The Pressure Reference 10 TECHNICAL DATA 10 1 Dimensions Weight Power supply Dimensions L x W x H 60 x 50 x 50 cm Operational configuration Power supply 110 230 V 50 60 Hz Weight 25 kg 10 2 Power supply The DPG10A is equipped with a socket which integrates a CEE2 standards socket a 5 x 20 mm 2 fuses compartment and a bipolar power switch A voltage selector enables the adaptation of the DPG10A to each country s voltage That is the reason why the DPG10A is delivered with a power cable and 2 fuses adapted
77. ressure stability Number of in use measuring head Filter setting indication REM is displayed if remote mode Action in progress or the residual pressure in vacuum Recalibration warning message Selected engineering unit G auge A bsolute pressure mode Measured pressure FOONVAVUPRWNH oO Note 1 A black star is displayed in area 2 when the pressure is stable When the measuring cell is at zero the star is displayed in inverse video Note 2 The A indicator is displayed in area 9 when the residual vacuum goes below 20 Pa It is displayed in inverse video mode when the residual vacuum is added to the pressure measurement of the measuring cell Never apply any pressure during the initialization of the standard If they are different measuring heads the user must select the head he wants to use in the HEADS menu Cf 7 6 Each time the user powers up the standard it goes back to the latest stored configuration DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA olla DH Budenberg The Pressure Reference 2 5 2 Keyboard 8 Budenberg DPG10A User manual Version 10 2010 Page 17 82 Digital Piston Gauge TARE measuring cell zeroing CAL measuring cell calibration Fi UNITS m
78. rformances enable it to be integrated in an accredited calibration chain Moreover the DPG10A s pressure ranges are quickly interchangeable which ensures an easy and accurate adaptation of the standard to any calibration application from vacuum to 20 bar 2 Mpa gauge and absolute 1 2 Operating principles 1 2 1 Measuring principle The DPG10A s measuring principle lies on the fundamental equation which defines pressure P F A It is based on the association of a piston cylinder assembly whose surface area A is perfectly known with a high accuracy electronic measuring cell which measures the force F Pressure is applied on the piston which turns it linearly into a perfectly proportional force that is transferred to the measuring cell The measuring cell permanently measures and interpolates the pressure generated force It uses the magnetic pot technology the force which is applied to the measuring cell creates an imbalance in a magnetic field An electric power is generated to restore the magnetic field s balance the measurement is based on the electric intensity which is needed to find back the balance Then the microprocessor calculates the force corresponding pressure sets it according to the environmental parameters and finally displays it DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenbe
79. rg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA an DH Budenberg The Pressure Reference DPG10A User manual Version 10 2010 Page 7 82 Therefore the measurement is directly linked with the primary physical units of mass length and time As a result the DPG10A can offer metrological performances that no transfer system is able to match The measuring cell is located in a reference chamber which can be evacuated for absolute pressure measurements or vented to ambient pressure for gauge pressure measurement 1 2 2 Auto Calibrating Function The DPG10A s Auto Calibrating Function is equipped with an automatic loading internal calibration mass The user can easily load the mass by pressing the CAL key located on the front panel of the DPG10A By applying this calibration mass the user readjusts the deviation of the measuring cell which appears when there is a drift between two reference points zero and the full scale value of the measuring cell The DPG10A s measuring cell may drift with time This drift is due to the evolution of the measuring cell s response according to the environmental parameters The main influence parameters are the ambient temperature and the relative humidity The use of the ACF enables the measuring cell to free from this drift by readjusting the deviation of the measuring cell according to the new environmental conditions It
80. russurHrannnnnnnnnnn eee eee eee en nun en une 30 5 2 1 Calibration time us na a abe 31 5 2 2 End Of Calibration asien ea Ta D Eer iia seas oiT AANT 31 6 MENU MODE vi ccciccscssasastedescasiedeaiaeversaiecieGubraceeaeasavies nA Ha ha Ei DL ea nn ER Eh En 32 6 1 Introducing the menu mode uz usesanennanennnnennnnennnnennnnennnnennnn eee ernennen 32 6 1 1 Operating principles uuessenseenennnnnnnnnnnnnnnennennennnn nennen EEE EEE 32 6 2 Accessing a function in menu Mode uuesansenaneennnennunennnnennnnennnnennnnennnn ented 32 6 3 Changing the pressure unit cece cece eee eee en une ene eee ened 33 6 3 1 Choosing an engineering unit usessurenannnnannnnnnennnnennnn eee eee eee eee eee ented 33 6 3 2 DETINING a USEF UN Mt ran seien 33 6 3 3 Editing the user unit coefficient arseen 34 6 3 4 Editing the user unit label uz4urss nnenan nn ann nun eee en une namen une 34 6 3 5 Quitting and or confirming the modifications rsz urerannnnnn en ann nn namen nnen 35 6 3 6 Quitting and or saving the modifications eee eee eee eee eee eee en nn eee eee nn teen ed 35 6 4 Setting pressure measurement parameters uunenenenenenenenennn nennen nun eee euere nenn 35 6 4 1 Modifying the resolution uzes userannnnnnnnnnnnnnnnennnn en nn en une nn ai 36 6 4 2 Modifying the Stability neben 36 DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FR
81. ser manual Version 10 2010 u DH Budenberg Page 10 82 The Pressure Reference 2 DESCRIPTION The DPG10A pressure standard is composed of example of assy One base One or several measuring heads Accessories An external lubrication commutation module for the HP version 1 The measuring head 2 Reference vacuum isolation valve 3 Measuring head vacuum isolation valve 4 Submicron filter 5 Instrument under test isolation valve 6 Vacuum pump 7 Vacuum Te connection DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 abs DH Budenberg Page 11 82 The Pressure Reference 2 1 The base The base is composed of The measuring cell which measures the force applied by the measuring head piston cylinder assembly The Auto Calibrating Function The Environment Monitoring Module Electronic components which ensure the calculation of the applied pressure the display and keyboard control as well as the RS232C communications 2 2 The measuring head The measuring head is designed for containing operating and protecting the piston cylinder assembly Piston head DPG10A measuring heads are designed to operate wi
82. sssnnnnnnnnnennennennnnnn nennen enn en enn nun nun nun nn 16 2 5 1 Interpreting a reading in Measure mode 2 cece cece e eee eee eee eee eee nennen nennen 16 2 5 Z KCV DOAN rad anne na a nn en ann En En DEE nee 17 3 INSTALLATION u u ee a eA vine seamen ecrda teas E EAE T eae E N en eras 18 Bel UMPACKING aan Eee 18 3 2 Setting UP u a ans ne nn nn nn a nn en ceed vines 18 3 2 1 Locating the DPG1 OA viii dia u ee 18 3 2 2 Levelling the DPGILOA au en ea en 19 3 2 3 Installing the measuring head top part zus sserennnnennnnnnnnnnn nennen nennen nenn nenn 20 3 2 3 1 Me s ring head n seenaeseene nn ea a un ei 20 322 302 BAS Erara dove E Er NEE eu EN RER TEE 21 3 2 3 3 Install the measuring head on the base asssrannenennnnen nennen nun nennen nennen 22 3 2 5 POWERING Up ae E E EAA EEA OANEI ENN 23 4 Zeroing The DPG nahe 24 4 1 Zeroing in gauge pressure MOE eunsserensnnennenennnnnnnn nenne nenne nennen NEEE eens 24 4 2 Zeroing in Absolute pressure Mode 2z u ss n nenne ennnnennnn ernennen ernennen nenn ann 26 4 3 Calibrating DPG under vacuum uerenserensnnennnnnnnnnnnnnnnnnn nenne nenne nen nenn nenn nennen 27 4 3 1 Use of the Auto calibration function ussessenennnnennnnennnnnnnnnnnnnnnn nn nenn nenne nennen 27 5 Running an external calibration z u4sr4nrRnannnnnn nn une eee eee eee eee eae nennen 30 5 1 Setting UP en ee 30 5 2 Running the external calibration
83. ssure value which is given by the reference barometer If a password has been defined Cf 7 7 2 and if the user has not still modified any other password protected element MEASURING HEADS and PARAMETERS menu RESET and RELATIVE HUMIDITY sub menus editing the reference atmospheric pressure is protected by password The following display appears as soon as you press F2 PASSWORD ABCDEFGHIJKLMNOPQRSTUVWX The user must then enter his password To enter the password select a letter from the alphabetic pad with a v lt gt a and v make a 5 letter displacement respectively to the left and to the right Press ENTER the selected letter displays above the cursor Repeat the operation until you obtain the desired password The edited letters are displayed with asterisks x x F3 DEL erases the latest user edited letter F2 DEF displays the default password and enables to cancel the password F1 SAV confirms the password and steps back to the previous screen DATA SET displays if the password is correct DATA NOT SET displays if the password is not correct F4 ESC steps back to the previous screen without saving the password DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User m
84. technician Never try in any case to mend it by yourself DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 a DH Budenberg Page 74 82 The Pressure Reference 11 5 Calibration 11 5 1 Standard s calibration 11 5 1 1 Frequency The frequency of the DPG10A s calibration has to be chosen by the user according to the Metrological and Quality Assurance Standards which he wishes to conform or which are in use in his company The experience the operating conditions and the level of measurement performance which is desired usually determine it For information only the DH BUDENBERG s experience reasonably recommends the user to recalibrate the standard every 3 years in normal operating conditions Remember that when he wishes the user can very easily externally calibrate the DPG10A and by this way perpetuate the accuracy of its measurements 11 5 1 2 Method and means The DPG10A s calibration consists in Determining the Kn specific coefficient converting the measuring head piston cylinder assembly pressure in mass and evaluating the associated uncertainty by comparison with a reference pressure standard then evaluating the uncertainty which is associated
85. th clean gas as the pressurized and piston lubricating medium The measuring head is coupled to its base by the mean of 3 screws and can be dismantled in a few seconds It is possible to combine a measuring cell with several measuring heads each of which being equipped with a piston cylinder assembly with a different surface area to meet various application fields 2 3 The accessories The accessories delivered with the DPG10A are A user s manual A calibration certificate A RS232C cable A power cable A vacuum tubing kit DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA alls DH Budenberg The Pressure Reference 2 4 General view 2 4 1 3D view DPG10A User manual Version 10 2010 Page 12 82 OANDUBRWNE Measuring cell Measuring head Bubble levels Digital display Cursor left right down up keys Enter key Leveling feet Function keys Calibration key Tare key Reference vacuum connections Reference level indication Connection flange to instrument under test DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh FRANCE UNITED KINGDOM GERMANY DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD UNITED ARABES EMIRATES INDIA SINGAPORE
86. the DPG and the temperature of the room 11 3 2 4 Vacuum sensor calibration The internal vacuum sensor Pirani can be recalibrated but the user s reading must be correct A better accuracy sensor like a Baratron for example should be used to recalibrate the internal Pirani In order to recalibrate the Pirani the user must perform a calibration cycle between 0 5 to 20 Pa and then determinate an offset and a span The DPG will do the following correction P_new P_old offset span The offset and the span can only be set via the RS232 The commands are OPI offset in Pa and SPI span If the internal Pirani has already been calibrated the user should set OPI 0 and SPI 1 prior to the calibration cycle If the user wants to use the readings from his sensor he must set VACUUM OFF in the menu SETTINGS so no automatic addition of the internal Pirani is made in the software but there it is not possible to connect the external sensor to the DPG and add this value to pressure reading it is not possible to do it automatically if another sensor is used instead of the Pirani DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ula DH Budenberg Page 79 82 The
87. there is no filter LOW MEDIUM and HIGH respectively display the pressure value as being the average result of the 3 5 and 10 latest pressure values VACUUM ON OFF the reading of the residual vacuum measured by the Pirani vacuum sensor is added ON or not OFF Select the criterion with a and v DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 gi DH Budenberg Page 36 82 The Pressure Reference 6 4 1 Modifying the resolution F2 and F3 gt respectively increase and decrease the digits number after the dot 6 4 2 Modifying the stability F2 and F3 gt respectively increase and decrease the stability criterion x value lt and gt respectively decrease and increase in a magnitude of 10 the criterion value Setting the stability to its minimal value for example 0 01 mbar when the unit is the mbar and the Kn is 1 allows to associate the stability indication with the measuring cell configuration which is defined in the SYSTEM menu CONF Cf 7 7 6 6 4 3 Modifying the filter F2 and F3 move respectively towards NONE and HIGH 6 4 4 Modifying the vacuum F2 and F3 move respectively towards ON and OFF OFF should be selected i
88. tion until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF displays the usual piston cylinder assembly conversion coefficient 1 F4 ESC steps back to the previous menu without saving the modification F1 SAV saves the new value and steps back to the previous screen DATA SET displays and a new screen appears Select with F1 bar Kg F2 psi Kg F3 kPa Kg and F4 MPa Kg the unit you wish to use Then you step back to the previous screen DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 an DH Budenberg Page 41 82 The Pressure Reference 6 6 5 Modifying the head temperature probe value Press F2 after having selected Pt100 and entered the password as explained The display is HEAD 1 PT100 Select a figure from the numeric pad with a v lt gt to edit a new value Press ENTER the selected figure displays above the cursor Repeat the operation until you obtain the desired value F3 DEL erases the latest user edited figure F2 DEF displays the usual head temperature probe value 100 00 F1 SAV saves the new value and steps back to the previous screen DATA SET displays F4 ESC steps back to the previous
89. to the voltage of the country Cf illustration 3 2 5 Do not forget to connect the DPG10A only to an earthed socket Protect the plug and the socket against humidity 10 3 Measurement cell The DPG10A pressure standard s principle consists in measuring the pressure generated force on a piston cylinder whose surface area is known The balance measures the force its resolution is 1 000 000 dots kg i e 10 mg 10 4 Environment Monitoring Module The internal sensors integrated in the Environment Monitoring Module allow a measurement of the ambient conditions temperature relative humidity atmospheric pressure and determine the air buoyancy on the calibration mass during the calibration The characteristics of these sensors are Temperature Pt100 probe 0 2 C Relative humidity capacity sensor 5 Atmospheric pressure strain gauge 2 mbar Pirani Gauge 10 of reading 10 5 CE Declaration Please refer to Appendix 1 at the end of this manual DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 ula DH Budenberg Page 70 82 The Pressure Reference 11 MAINTENANCE 11 1 General Maintenance No particular maintenance is to be performed
90. ughts In this case the user must protect the DPG10A from the environment disturbances and start again the procedure The display goes back to the measurement mode by pressing F4 ESC Once it is finish close valve 2 and 3 The DPG is now ready for gauge measurements DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA DPG10A User manual Version 10 2010 un DH Budenberg Page 26 82 The Pressure Reference 4 2 Zeroing in Absolute pressure mode To perform absolute pressure measurement it is necessary to first zero the DPG10A with vacuum applied on both sides of the piston cylinder assembly and then calibrate the force sensor to the ambient condition DPG10A reference chamber is equipped with 2 vacuum ports One port is used to connect a vacuum pump while the second one can be used to connect a vacuum measuring instrument a controlled leak valve or a plug Connect the standard as shown bellow Setup for the DPG10A LP version Valve 3 and valve 5 must be closed to isolate the DPG from atmosphere Valve 2 must be open to apply vacuum with the vacuum pump 6 in the reference chamber as well as on top of the piston cylinder inside the measuring head 1 Start up the vacuum pump and
91. with the DAC internal mass calibration by comparison with external standard masses finally evaluating the DPG10A s global measurement uncertainty by comparison with a reference pressure standard Note Should you need any further details do not hesitate to contact us 11 5 2 Ambient conditions sensors calibration The user has the ability to calibrate the atmospheric pressure and relative humidity sensors by editing the values displayed by the reference instruments From the measurement mode press ENTER to access the main run screen select the EMM menu with a v lt gt then confirm your choice by pressing ENTER again The display is 2 23 5 C 24 6 C 54 1013 hPa 1 19kg m Ta Air temperature at the level of the internal calibration mass in C Tb Piston cylinder assembly temperature in C Hum Relative humidity in Patm Atmospheric pressure in hPa Mvol Air mass density in kg m DH Budenberg Worldwide DH Budenberg SA DH Budenberg LTD DH Budenberg Gmbh DH Budenberg Inc FRANCE UNITED KINGDOM GERMANY UNITED STATE of AMERICA DH Budenberg FZCO DH Budenberg PV LTD DH Budenberg PTE LTD DH Budenberg PTY LTD UNITED ARABES EMIRATES INDIA SINGAPORE AUSTRALIA an DH Budenberg DPG10A User manual Version 10 2010 Page 75 82 The Pressure Reference 11 5 3 Atmospheric pressure sensor calibration Select Patm from the EMM menu F4 ESC steps back to the main run screen F2 EDT edits the atmospheric pre

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