​​​​​​​​​​​​​Teledyne Hastings Instruments 2002 Instruction Manual
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​​​​​​​​​​​​​Teledyne Hastings Instruments 2002 Instruction Manual

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TELEDYNE HASTINGS
INSTRUCTION MANUAL
MODEL 2002
MODEL 2002
MODEL 2002
MODEL 2002
MODEL 2002
V V V V V A A A A A CUUM G
CUUM G
CUUM G A A A A A UGE
CUUM G
CUUM G
INSTRUMENTS
UGE
UGE
UGE
UGE
Model 2002 page 1

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Summary of Contents for ​​​​​​​​​​​​​Teledyne Hastings Instruments 2002

  • Page 1 MODEL 2002 MODEL 2002 MODEL 2002 MODEL 2002 MODEL 2002 V V V V V A A A A A CUUM G CUUM G CUUM G CUUM G A A A A A UGE CUUM G Model 2002 page 1...
  • Page 2 Revision A (Document Number 149-0798) ............September 1998 Revision B (Document Number 149-032000) ............March 2000 Revision C (Document Number 149-052002) ............. May 2002 Revision D (Document Number 149-102002) ............October 2002 Revision E (Document Number 149-062004) .............. June 2004 Revision F (Document Number 149-082005) ............

  • Page 3: Table Of Contents

    TION ......................................... 5 5 5 5 5 ..............GENERAL INFORMA TION ..............Features ..........................5 Model 2002 Sensors ......................5 Model 2002 Control Unit ....................6 Specifications ........................6 2.0 INST INST INST INST INSTALLA ALLA ALLA ALLATION...
  • Page 4 Non-Warranty Repair Policy ................... 43 1 1 1 1 1 2.0 2.0 DIA DIAGRAMS GRAMS GRAMS GRAMS GRAMS AND DRA AND DRA AND DRA AND DRA AND DRAWINGS WINGS WINGS WINGS WINGS ..........................................................45 page 4 Model 2002...

  • Page 5: General Informa General Informa General Information Tion Tion

    SECTION 1 General Information The Model 2002 is a wide range vacuum measuring instrument consisting of a digital microproces- sor-based display unit, a miniature, rugged, thin film based sensing element that measures from below 1x10 up to 100 Torr, a piezoresistive sensor that measures from 1 to 1000 Torr, EEPROM (Electrically Erasable/Programmable Read Only Memory), and an interconnecting cable.

  • Page 6: Model 2002 Control Unit

    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 3.62 in. (92 mm) square hole. The case is constructed of NORYL rated UL-94-V1 (self-extinguishing plastic) and is equipped with mounting brackets that are adjustable up to 3/16”...

  • Page 7: Tion

    Carefully unpack the Hastings Model 2002 Instrument (part # HPM-2002), transducer (part #HPM-2002s) and cable (part # CB 2002). Inspect all items for any obvious signs of damage due to shipment. Immediately advise the carrier who delivered the shipment if any damage is suspected.

  • Page 8: Transducer Installation

    Upon applying power to the control unit a pressure measurement will be given in Torr for nitrogen. However, it is recommended that the user follow the instructions for zeroing and adjusting the output at atmospheric pressure in Section 3.4 ("Cal Mode"). page 8 Model 2002...

  • Page 9: Fr Front Pont Panel Opera Ont Pont Panel Opera Anel Operation Tion Tion

    “ .“, “. “ or “ . “. See trouble shooting section (section 8) for more detail. HASTINGS INSTRUMENTS DUAL SENSOR VACUUM GAUGE MODEL 2002 mbar Model 2002 Torr UP SWITCH Control Unit Front Panel DOWN SWITCH MODE SWITCH ZERO SWITCH Model 2002 Control Unit Front Panel Figure 3.1 Model 2002 page 9...

  • Page 10: Run Mode

    All six modes of the Model 2002 have features which can be accessed and modified after bypassing the front panel interlock. The interlock is in place to prevent the accidental corruption of the instrument’s configuration and calibration. The interlock is bypassed using the following steps: 1.

  • Page 11: Hi And Low Set Point Modes

    The pinout is shown in Figure 4.2. To view the high set point, place the Model 2002 in the HIGH mode by pressing the MODE switch to illuminate the HIGH light and no other mode light. The display will show the set point selected.
  • Page 12 Torr. The users calibration points are not required to be exactly those values, but should be somewhat close, and must be within the ranges shown in the following figure. The HPM-2002 detects the voltage signal within the sensor tube, which is converted and displayed as a pressure reading.
  • Page 13 The unit is now fully zeroed. Place the Model 2002 back in the RUN mode to store the zero permanent memory. Midrange Coefficient...

  • Page 14: Gas Mode

    Press and release the MODE switch as necessary to return the 2002 to the RUN mode and store the coefficients to permanent memory. Atmosphere Coefficient Atmosphere Coefficient Adjustment Atmosphere Coefficient Adjustment Adjustment Adjustment Atmosphere Coefficient Atmosphere Coefficient Adjustment If a reference high pressure gauge is not available, the ambient barometric pressure acquired from the weather channel or other weather service can be used to adjust the proper reading.

  • Page 15: Units Mode

    3.6 UNITS Mode The Model 2002 can display the measured pressure in different pressure units, Torr, mbar or Pascal. To switch between these units press the MODE switch until the UNITS field is lit. Press the UP and DOWN switches simultaneously.
  • Page 16 This page was intentionally left blank page 16 Model 2002...

  • Page 17: Remote Zero Input

    Rear Panel Description A schematic of the rear panel of the Model 2002 control unit is shown in Figure 4.2 ( Rear Panel Figure). The transducer is connected to the control unit via an female 9-pin “D” connector on the rear panel. An I/O cable can be connected via a male 9-pin “D”...
  • Page 18 = 1 + 18 * (2.35) - 9 * (2+6) = 1 + 42.3 - 36 = 7.3 Finally the pressure is given by; Pressure (torr) = MANT x 10 = 7.3 x 10 Torr -2 -2 -2 -2 -2 page 18 Model 2002...

  • Page 19: Ttl Outputs

    High set point, the High signal line (pin#3) will be set to a TTL low level (+0 VDC). When the pressure as indicated by the Model 2002 is below the Low set point, the Low signal line (pin #4) will be set to a TTL high level (+5 VDC). When the indicated pressure is above the Low set point, the Low signal line (pin #4) will be set to a TTL low level (+0 VDC).

  • Page 20: Power Entry Module

    4.4 Power Entry Module The AC power for the Model 2002 enters the instrument through a power entry module that contains a fuse, on/off switch and an IEC 320 power inlet. The fuse is rated for 250 V, 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.

  • Page 21: Theor Theor Theory Of Operay Of Operay Of Operation Tion

    SECTION 5 Theory of Operation The Model 2002 transducer is comprised of two very different sensors which provide a span of measurement extending from 1000 Torr down to less than 1x10 Torr. The piezoresistive device is a direct force sensor which provides pressure indication from 1000 Torr down to less than 1 Torr.
  • Page 22 Eventually the strain in the membrane due to ∆P becomes zero and only the residual strain in the lattice remains. The bridge resistive elements are oriented to give maximum change in bridge resistance which in turn gives maximum voltage out for a given strain. page 22 Model 2002...
  • Page 23 Pressure Diffused bridge resistors Diaphragm Backing surface or restrainer View A-A Diffused bridge resistors Ground Ground Figure 5.2 Model 2002 page 23...

  • Page 24: Pirani Sensor

    = Stefan-Boltzmann radiation constant σ = thermal emissivity of the silicon nitride membrane ε = surface area of the heated portion of the membrane = temperature of R = ambient temperature page 24 Model 2002...
  • Page 25 Temperature compensation resistor (Pt) Silicon nitride membrane Heated sensor resistor (Pt) Figure 5.3a Silicon substrate Silicon lid Silicon base TO-8 header Membrane Figure 5.3b Silicon lid Silicon base Membrane Figure 5.3c Model 2002 page 25...

  • Page 26: Dual Sensor Operation

    Torr. The microprocessor uses the output of the piezoresistive sensor at high pressures (>32 Torr) and uses the output of the Pirani sensor at low pressures (<8 Torr). In the crossover region, a software averaging algorithm ensures a smooth transition between the two sensors. page 26 Model 2002...
  • Page 27 Model 2002 Dual Sensor Vacuum Gauge 1.0E+03 1.0E+02 1.0E+01 1.0E+00 1.0E-01 1.0E-02 Pirani 1.0E-03 Piezo 1.0E-04 1.0E-05 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) Figure 5.4 Model 2002 page 27...
  • Page 28 This page was intentionally left blank page 28 Model 2002...

  • Page 29: Communica Communica Communications Option Bo Tions Option Bo Tions Option Board Tions Option Bo Ard Ard

    Both RS-232 and RS-485 communication interface boards are available as an option for the Model 2002. The communication option boards allow data to be output to a host computer with the appropiate interface. Connection to the RS-232 or RS-485 communication interface boards are via a 9 pin D-subminiature female connector.

  • Page 30: Rs-485 Interface Connector Pin Assignments

    2 and 3 to the(+) bus and pins 4 and 8 to the (-) bus. 6.3 Operation of the Serial Interface Communication with the serial interface of the Model 2002 is via an ASCII data string. In the RS-232 mode the command message consist only of a command string and the terminator. The attention character and address string are not required, but if they are used they MUST be valid.
  • Page 31 Decimation Ratio: 255<CR> Transmit Selected Gas # G<CR> Gas#: 0<CR> Transmit High Setpoint H<CR> Hi: 1.00000e+1 Torr<CR> Transmit Low Setpoint L<CR> Lo: 1.00000e-2 Torr<CR> Transmit Device Status S<CR> 00044<CR> Transmit Turnaround Delay T<CR> Comm Delay: 6<CR> Model 2002 page 31...
  • Page 32 ~8 millisecond, e.g. [*{aa}T=10<CR>] will set the delay to ~80 milliseconds. If the command syntax is not met or if the number is out or range, the HPM-2002 will respond with the ASCII codes for <bell>?<CR>, and the command will be ignored.
  • Page 33 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, the HPM-2002 will respond with the ASCII codes for <bell>?<CR>, and the command will be ignored.
  • Page 34 Device Status When requested to transmit its status the Model 2002 responds with a five digit number which is explained in the following: it#: it#: 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3...

  • Page 35: Rela Rela Relay Interf Relay Interfy Interfa A A A A Ce Option Bo Ce Option Bo Ce Option Board Ard Ard

    SECTION 7 Relay Interface Option Board The relay interface board is available as an option for the Model 2002. Additionally, relays may be added to either the Digital option Board (RS-232 or RS-485) or to the Analog option Board (0-10 Volts or 4-20mA). In either case the relays operate independently of the other options. The relay board allows the TTL logic setpoints (High, Low) to directly control two SPDT relays.

  • Page 36: Operation

    7.2 Relay Connector Pin Assignment Operation page 36 Model 2002...

  • Page 37: 4-20Ma Interf 4-20Ma Interfa A A A A Ce Option Bo 4-20Ma Interf 4-20Ma Interf Ce Option Bo Ce Option Board Ard Ard

    SECTION 8 4-20 mA Interface Option Board The Relay option board in the Model 2002 operates off of the setpoints defined by the user and programed into the Model 2002 microprocessor. For more information about configuring these setpoints refer to Section 3 of this manual.

  • Page 38: Operation

    The 4-20 mA output option board provides dual channel current output linearly proportional to the HPM 2002’s pressure reading. The first channel corresponds to the higher pressure range (0- 1024 Torr). The second channel corresponds to the lower pressure range (0-1000mTorr). The...

  • Page 39: Olt Interfa A A A A Ce Olt Interf Olt Interf Ce Ce

    The 0-10 V interface board is available as an option for the Model 2002. This board provides dual voltage channels linearly proportional to the HPM 2002’s pressure reading. Please note that use of the Model 2002 with this option requires a CPU with firmware version 1.6 or later for proper operation.
  • Page 40 The 0-10V output option board, provides voltage outputs proportional to the HPM-2002 pressure reading. The first channel corresponds to 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.

  • Page 41: Ting Guide Ting Guide

    Display shows decimal point and minus sign only Action: Action: Action: Action: Action: 1. Check microprocessor. a) Remove the front panel. b) Verify that the microprocessor is properly seated in the chip carrier. 2. Consult the factory. Model 2002 page 41...
  • Page 42 42 Model 2002...

  • Page 43: W W W W W Arranty Arranty And Rep Arranty And Rep And Repair Air

    804 NEWCOMBE AVENUE HAMPTON, VIRGINIA 23669 U.S.A. ATTENTION: REPAIR DEPARTMENT TELEPHONE (757) 723-6531 1-800-950-2468 (757) 723-3925 E MAIL hastings_instruments@teledyne.com INTERNET ADDRESS http://www.hastings-inst.com Repair Forms may be obtained from the “Information Request” section of the Hastings Instruments web site. Model 2002 page 43...
  • Page 44 This page was intentionally left blank page 44 Model 2002...
  • Page 45 SECTION 11 Diagrams and Drawings Model 2002 page 45...
  • Page 46 2.35” 59.7mm *1.20” 30.5mm *1.20 diameter dimension of tube shell is typical on all HPM-2002 series tubes Mini Confla Mini Confla Mini Conflat t t t t (HPM-2002-03) (HPM-2002-03) Mini Confla Mini Confla (HPM-2002-03) (HPM-2002-03) (HPM-2002-03) 2.30” 58.4mm KF-16 (HPM-2002-05)
  • Page 47 1/2" O 1/2" O 1/2" O 1/2" O.D .D..Smooth Smooth Smooth Smooth Smooth T T T T T ube (HPM-2002-07) ube (HPM-2002-07) ube (HPM-2002-07) ube (HPM-2002-07) ube (HPM-2002-07) 3.27” 83mm 1/4" 1/4" 1/4" VCR (HPM-2002-02)
  • Page 48 P P P P P anel Cut-Out Dimensions anel Cut-Out Dimensions anel Cut-Out Dimensions anel Cut-Out Dimensions anel Cut-Out Dimensions Model 2002 Outline Dra Model 2002 Outline Dra Model 2002 Outline Drawings wings wings (all dimensions shown are approximate) wings...
  • Page 49 P P P P P anel Mounting anel Mounting anel Mounting anel Mounting anel Mounting Deep Mounting Location Shallow Mounting Location Mounting Clip Mounting Clip Mounting Clip Attachment Attachment Attachment Attachment Mounting Clip Mounting Clip Attachment Model 2002 page 49...
  • Page 50 50 Model 2002...
  • Page 51 Model 2002 page 51...
  • Page 52 52 Model 2002...
  • Page 53 Model 2002 page 53...
  • Page 54 54 Model 2002...

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