Teledyne Hastings Instruments 2002 Instruction Manual Download Page 23 | Manualshive

Page: 23 / 54

background image

Model 2002 page 23

Figure 5.2

Pressure

Diaphragm

Diffused bridge resistors

Backing surface or
restrainer

View A-A

E

S

e

1

e

2

Ground

Ground

Diffused bridge resistors

A-A

«
...
21
22
23
24
25
...
»

Summary of Contents for 2002

Page 1: ...odel 2002 page 1 MODEL 2002 MODEL 2002 MODEL 2002 MODEL 2002 MODEL 2002 V V V V VA A A A ACUUM G CUUM G CUUM G CUUM G CUUM GA A A A AUGE UGE UGE UGE UGE INSTRUMENTS TELEDYNE HASTINGS INSTRUCTION MANUA...

Page 2: ...new revision of the manual Each new revision includes a revised copy of this print history page Revision A Document Number 149 0798 September 1998 Revision B Document Number 149 032000 March 2000 Revi...

Page 3: ...escription 9 3 2 RUN Mode 10 3 3 HI and LOW Set Point Modes 11 3 4 CAL Mode 11 3 5 GAS Mode 14 3 6 UNITS Mode 15 4 0 4 0 4 0 4 0 4 0 REAR P REAR P REAR P REAR P REAR PANEL DESCRIPTION ANEL DESCRIPTION...

Page 4: ...8 2 Operation 38 9 0 9 0 9 0 9 0 9 0 0 10 0 10 0 10 0 10 0 10 V V V V Volt INTERF olt INTERF olt INTERF olt INTERF olt INTERFA A A A ACE CE CE CE CE 39 39 39 39 39 9 1 0 10Volt Interface Connector Pi...

Page 5: ...3a deposited on a 1 micron thick Si3 N4 membrane The membrane is peripherally supported by a Si box shaped die and is covered by a thick Si lid parallel to the membrane and open on two ends see Figur...

Page 6: ...operate with various gases An optional serial interface board can be installed to provide RS232 or RS485 support The Model 2002 control unit fits a standard DIN 43700 insert 1 4 DIN and mounts into a...

Page 7: ...6 6 If y If y If y If y If you ha ou ha ou ha ou ha ou hav v v v ve computer interface or process control options e computer interface or process control options e computer interface or process contro...

Page 8: ...ne gasket that was shipped with the control unit onto the case from the back Slide the controller through the panel cutout Hold the hardware against the side and tighten the two screws T T T T Transdu...

Page 9: ...his pressure the HIGH TTL output will be 5V LO LO LO LO LOW W W W W Low set point is displayed in scientific notation below this pressure the LOW TTL output will be 5V CAL CAL CAL CAL CAL Pressure is...

Page 10: ...A D converter and will update the display about four times per second A D Speed A D Speed A D Speed A D Speed A D Speed Adjust Adjust Adjust Adjust Adjust The Model 2002 utilizes a 24 bit sigma delta...

Page 11: ...comes less less less less less than the set point The alarm lights cannot indicate an alarm condition while in the set point modes Therefore it is advisable not to leave the instrument in these modes...

Page 12: ...reading determines which of the three coefficients will be ad justed To adjust a calibration coefficient press the MODE switch until the CAL light is illuminated Then simultaneously press the UP and...

Page 13: ...the ZERO switch once if below 6x10 5 Torr otherwise use the UP and DOWN switch to adjust the display of the Model 2002 to match the pressure indicated by the reference If using the UP and DOWN switch...

Page 14: ...ress and release the MODE switch as necessary to return the Model 2002 to the RUN mode and store the coefficients to permanent memory 3 5 GAS Mode The Model 2002 can provide true pressure measurements...

Page 15: ...1 Torr Table 2 gives conversion factors for the most often used pressure units Torr mm Hg mTorr micron Hg atm athmosphere mbar millibar Pa psi lb in 51 72 7 5x10 0 75 760 10 1 1 32x10 1 32x10 1 9 869...

Page 16: ...page 16 Model 2002 This page was intentionally left blank...

Page 17: ...roller to automatically zero the Model 2002 whenever the pressure is below the low 10 5 Torr range A Digital Common is provided on pin 5 which can be used with relay contacts or switch contacts to rem...

Page 18: ...refore Note that the INT function simply returns to the first digit in a number examples INT 2 56 2 INT 9 87 9 Voltage to pressure conversion example Given V 2 35 Volt First calculate the exponent EXP...

Page 19: ...del 2002 is below the Low set point the Low signal line pin 4 will be set to aTTL high level 5VDC When the indicated pressure is above the Low set point the Low signal line pin 4 will be set to aTTL l...

Page 20: ...50V 1 4 A It can be accessed by unplugging the AC cord and prying the fuse compartment open with the tab and slot in the power inlet chamber There is a spare fuse in the compartment within the fuse ho...

Page 21: ...s pressure indication from 100Torr down to less than 1x10 4 Torr The two decade overlap in measurement range is convenient for smooth transition either descending or ascending in pressure Both sensors...

Page 22: ...d temperature compensation current source compensation TCR TCS Sensitivity of the sensor is proportional to the sensor factor K the strain gauge positioning of the diaphragm and the diaphragm geometry...

Page 23: ...Model 2002 page 23 Figure 5 2 Pressure Diaphragm Diffused bridge resistors Backing surface or restrainer View A A ES e1 e2 Ground Ground Diffused bridge resistors A A...

Page 24: ...nce The power supplied to the sensor resistor must equal the heat dissipated Et The three main heat loss routes from the heated sensor are thermal conduction through the silicon nitride membrane to th...

Page 25: ...Silicon lid x Membrane Silicon base TO 8 header Temperature compensation resistor Pt Silicon nitride membrane Heated sensor resistor Pt Silicon substrate Figure 5 3a Figure 5 3c Silicon lid Silicon b...

Page 26: ...stant at high pressures and directly proportional to the pressure at low pressures The energy loss Eg changes between these two controlling equations as the system passes through the transition region...

Page 27: ...nsor Vacuum Gauge 1 0E 05 1 0E 04 1 0E 03 1 0E 02 1 0E 01 1 0E 00 1 0E 01 1 0E 02 1 0E 03 1 0E 05 1 0E 04 1 0E 03 1 0E 02 1 0E 01 1 0E 00 1 0E 01 1 0E 02 1 0E 03 Pressure Torr Zeroed Sensor Output Arb...

Page 28: ...page 28 Model 2002 This page was intentionally left blank...

Page 29: ...rity No parity Stop bits One stop bit A common application of the RS232 version of the HPM 2002 is to connect the pressure gauge directly to the serial port of a PC This is done by first wiring a comm...

Page 30: ...tention character followed by the address string the command string and the terminator If all components of the ASCII data string are valid the command will be accepted and executed The RS 485 mode is...

Page 31: ...nts carriage return When entering more than one command in the same data string they must be separated by a comma All command strings must be followed by the terminator character carriage return CR al...

Page 32: ...the data the user is free to choose any value appropriate to his use of the instrument The Turnaround Delay and RS 485 address are unique to multipoint communications In order to prevent inadvertent m...

Page 33: ...alid range of the presently selected Unit of Measurement i e Torr mbar or Pascal The data is checked to be valid before being accepted If the command syntax is not met or if the number is out or range...

Page 34: ...ain Board EEPROM Error 2 Probe EEPROM any Error 1 Probe EEPROM Not Responding 8 Probe EEPROM Read Error 1 Probe EEPROM Checksum Error 4 Probe EEPROMVerification Error 2 Probe EEPROM Identification Err...

Page 35: ...or a maximum switching current of 250VA resistive load Connec tion to the relay contacts is made via connector mounted through the rear panel of the Model 2002 Screw terminals on the mating connector...

Page 36: ...page 36 Model 2002 7 2 Relay Connector Pin Assignment 7 3 Operation...

Page 37: ...2002 with this option requires a CPU with firmware for version 1 6 or later 8 1 4 20 mA Interference Connector Pin Assignmets Pin Connection 1 Internal loop power out channel 1 3 Loop in channel 1 8 I...

Page 38: ...0mTorr The equations below give the output currents for a given pressure Note that for both channels the output is always between 4mA and 20mA Specifically when the pressure is below 1Torr channel 1 c...

Page 39: ...tion 1 Channel 1 Output 2 Channel 1 Shield Analog Common 3 Channel 1 Output 7 Channel 2 Output 8 Channel 2 Output 9 Channel 2 Shield Analog Common Both output channels are true differential and are sh...

Page 40: ...the higher pressure range 0 1024 Torr The second channel corrresponds to the lower pressure range 0 1000mTorr The equation below gives the output voltage for a given pressure V channel 1 P Torr 100 V...

Page 41: ...nection a Remove the front panel by removing the bezel and four phillips head screws Disconnect AC power prior to removal of the front panel b Slide the display board and the main PCB out of the case...

Page 42: ...page 42 Model 2002...

Page 43: ...workmanship during the warranty period Defective instruments should be returned to Hastings Instruments shipment prepaid together with a written statement of the problem and a Return Material Authori...

Page 44: ...page 44 Model 2002 This page was intentionally left blank...

Page 45: ...Model 2002 page 45 Diagrams and Drawings SECTION 11...

Page 46: ...2 05 KF 16 HPM 2002 05 KF 16 HPM 2002 05 KF 25 HPM 2002 06 KF 25 HPM 2002 06 KF 25 HPM 2002 06 KF 25 HPM 2002 06 KF 25 HPM 2002 06 T T T T Tube Outline Dra ube Outline Dra ube Outline Dra ube Outline...

Page 47: ...ube HPM 2002 07 1 4 1 4 1 4 1 4 1 4 VCR HPM 2002 02 VCR HPM 2002 02 VCR HPM 2002 02 VCR HPM 2002 02 VCR HPM 2002 02 2 3 4 Confla 2 3 4 Confla 2 3 4 Confla 2 3 4 Confla 2 3 4 Conflat t t t ttm tm tm t...

Page 48: ...2 Out Model 2002 Out Model 2002 Out Model 2002 Out Model 2002 Out line Dimensions line Dimensions line Dimensions line Dimensions line Dimensions 3 54 90mm 6 75 171mm Model 2002 Outline Dra Model 2002...

Page 49: ...P P Panel Mounting anel Mounting anel Mounting anel Mounting anel Mounting Mounting Clip Mounting Clip Mounting Clip Mounting Clip Mounting Clip Attachment Attachment Attachment Attachment Attachment...

Page 50: ...page 50 Model 2002...

Page 51: ...Model 2002 page 51...

Page 52: ...page 52 Model 2002...

Page 53: ...Model 2002 page 53...

Page 54: ...page 54 Model 2002...

Reviews:

No comments

Related manuals for 2002

Brand: DAVIS Pages: 12

Brand: IFR Pages: 46

Brand: Vega Pages: 20

Brand: Vega Pages: 16

Brand: Vega Pages: 2

Clavinova CLP-110

Brand: Yamaha Pages: 46

Clavinova CLP-110

Brand: Yamaha Pages: 46

Brand: Yamaha Pages: 8

Brand: bmcm Pages: 5

Brand: Tektronix Pages: 48

Brand: EUPRY Pages: 6

Brand: REED Pages: 4

Brand: ADA INSTRUMENTS Pages: 27

Brand: Anritsu Pages: 29

Brand: VWR Pages: 44

Brand: Kawai Pages: 72

Brand: Lambda Pages: 35

Brand: National Instruments Pages: 24

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands