Teledyne Vacuum Gauge 2002 Manuel d'utilisateur

Model 2002 page 1MODEL 2002MODEL 2002MODEL 2002MODEL 2002MODEL 2002VVVVVAAAAACUUM GCUUM GCUUM GCUUM GCUUM GAAAAAUGEUGEUGEUGEUGEINSTRUMENTSTELEDYNE H

page 10 Model 2002All six modes of the Model 2002 have features which can be accessed and modified after bypassingthe front panel interlock. The in

Model 2002 page 11above, press the ZERO switch to display the decimation ratio (filtering). The larger the ratio, thelonger the response time.EEPRE

page 12 Model 2002 Maintainance and Repair 4-3the power level of the tube and adjust the proper coefficient for pressure level of the adjus

Model 2002 page 13back to the original displayed value upon restarting. Place the Model 2002 back in the RUNmode to store all of the current calibra

page 14 Model 20025. Press and release the MODE switch as necessary to return the 2002 to the RUN mode andstore the coefficients to permanent memory

Model 2002 page 15Note: Factory calibration is performed using nitrogen only. Displayed pressure mea-surements using other gases are based on es

page 16 Model 2002This page was intentionally left blank

Model 2002 page 17 Rear Panel DescriptionSECTION 4A schematic of the rear panel of the Model 2002 control unit is shown in Figure 4.2 ( Rear Panel

page 18 Model 2002If the analog output voltage is being used in a data aquisition system, the following formulas canbe used to calculate pressure.EX

Model 2002 page 19 4.3 4.3 4.3 4.3 4.3 TTL OutputsTTL OutputsTTL OutputsTTL OutputsTTL OutputsTTL outputs are provided for process con

page 2 Model 2002Manual Print HistoryManual Print HistoryManual Print HistoryManual Print HistoryManual Print HistoryThe print history shown below l

page 20 Model 2002Figure 4.2SENSOR CONNECTORPin# Connection1 Sensor2 Bridge (sense)3 Bridge-Power4 Reference5 Common6 Common (sense)7 N/C8 N/CI/O C

Model 2002 page 21 Theory of OperationSECTION 5The Model 2002 transducer is comprised of two very different sensors which provide a span ofmeasurem

page 22 Model 2002dVdT00dV1dTV1SdSdTthereforeKRLRLdVdTP(SdVdTVdSdT)0Figure 5.2 shows a typical schematic of a B implanted Wheatstone bridge network

Model 2002 page 23Figure 5.2PressureDiaphragmDiffused bridge resistorsBacking surface orrestrainerView A-AESe1e2GroundGroundDiffused bridge resisto

page 24 Model 20025.2 Pirani SensorFigure 5.3a shows a thin film Pt resistive element on a one micron thick Si3N4 continuous mem-brane surrounded

Model 2002 page 25Figure 5.3bSilicon lidxMembraneSilicon baseTO-8 headerTemperature compensationresistor (Pt)Silicon nitride membraneHeated sensor

page 26 Model 2002This radiation loss is also independent of the thermal conductivity of the gas. It is somewhatdependent upon the absolute tempera

Model 2002 page 27Model 2002Dual Sensor Vacuum Gauge1.0E-051.0E-041.0E-031.0E-021.0E-011.0E+001.0E+011.0E+021.0E+031.0E-05 1.0E-04 1.0E-03 1.0E-02 1

page 28 Model 2002This page was intentionally left blank

Model 2002 page 29 Communications Option BoardSECTION 6Both RS-232 and RS-485 communication interface boards are available as an option for theMod

Model 2002 page 3TTTTTable of Contentsable of Contentsable of Contentsable of Contentsable of Contents1.01.01.01.01.0GENERAL INFORMAGENERAL INFORMAG

page 30 Model 20026.2 Interface Connector Pin Assignments for RS-232Note: an alternate method of connecting to a 2 wire bus is to leave the inter

Model 2002 page 31RS-485 address (the address is displa(the address is displa(the address is displa(the address is displa(the address is displayyyyy

page 32 Model 2002Transmit Selected Units U<CR> Torr<CR>Transmit Software Version# V<CR> Hastings Instruments - Model 2002Version

Model 2002 page 33Set Full Scale Calibration CF={m.d}E{e}<CR> 5.12e+2 to 1.023e+3 Torr6.83e+2 to 1.365e+3 mbar6.83e+4 to 1.365e+5 Pasca

page 34 Model 2002Device StatusWhen requested to transmit its status the Model 2002 responds with a five digit number which isexplained in the follo

Model 2002 page 35Relay Interface Option BoardSECTION 7The relay interface board is available as an option for the Model 2002. Additionally, relay

page 36 Model 20027.2 Relay Connector Pin Assignment7.3 Operation

Model 2002 page 374-20 mA Interface Option BoardSECTION 8The Relay option board in the Model 2002 operates off of the setpoints defined by the user

page 38 Model 20028.2 OperationThe 4-20 mA output option board provides dual channel current output linearly proportional tothe HPM 2002’s pressure

Model 2002 page 390-10V Interface Option BoardSECTION 9The 0-10 V interface board is available as an option for the Model 2002. This board provide

page 4 Model 20027.07.07.07.07.0RELARELARELARELARELAY INTERFY INTERFY INTERFY INTERFY INTERFAAAAACE OPTION BOCE OPTION BOCE OPTION BOCE OPTION BOCE

page 40 Model 2002The 0-10V output option board, provides voltage outputs proportional to the HPM-2002pressure reading. The first channel correspon

Model 2002 page 41Symptom:Symptom:Symptom:Symptom:Symptom: Power on - No display activity.Action:Action:Action:Action:Action: 1. Check for proper AC

page 42 Model 2002

Model 2002 page 43Warranty and RepairSECTION 1111.1 Warranty Repair PolicyHastings Instruments warrants this product for a period of one year from

page 44 Model 2002This page was intentionally left blank

Model 2002 page 45Diagrams and DrawingsSECTION 11

page 46 Model 2002Mini ConflaMini ConflaMini ConflaMini ConflaMini Conflattttttm tm tm tm tm (HPM-2002-03) (HPM-2002-03) (HPM-2002-03) (HPM-2002-03

Model 2002 page 471/8" NPT (HPM-2002-01)1/8" NPT (HPM-2002-01)1/8" NPT (HPM-2002-01)1/8" NPT (HPM-2002-01)1/8" NPT (HPM-200

page 48 Model 20023.62"92mmPPPPPanel Cut-Out Dimensionsanel Cut-Out Dimensionsanel Cut-Out Dimensionsanel Cut-Out Dimensionsanel Cut-Out Dimens

Model 2002 page 49NEOPRENE GASKET(optional)PPPPPanel Mountinganel Mountinganel Mountinganel Mountinganel MountingMounting Clip Mounting Clip Mountin

Model 2002 page 5 General InformationSECTION 1The Model 2002 is a wide range vacuum measuring instrument consisting of a digital microproces-sor-b

page 50 Model 2002

Model 2002 page 51

page 52 Model 2002

Model 2002 page 53

page 54 Model 2002

page 6 Model 20021.3 Model 2002 Control UnitThe Model 2002 control unit consists of the power supply, Pirani resistance bridge control, signalpro

Model 2002 page 7SECTION 2InstallationThis section is designed to assist in getting a new pressure gauge into operation as quickly andeasily as pos

page 8 Model 20022.3 Transducer InstallationThe transducer may be installed in any orientation. Although the transducer is rugged and willperfor

Model 2002 page 9 Front Panel OperationSECTION 33.1 Overall Functional DescriptionThe front panel of the control unit is shown in Figure 3.1. Th