Teledyne HVG-2020B Instruction Manual
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Teledyne HVG-2020B Instruction Manual

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HVG-2020B
INSTRUCTION MANUAL
I S O 9 0 0 1
C E R T I F I E D
Use and Disclosure of Data
Information contained herein is classified as EAR99 under the U.S. Export Administration Regulations.
Export, reexport or diversion contrary to U.S. law is prohibited.

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  • Page 1 HVG-2020B INSTRUCTION MANUAL I S O 9 0 0 1 C E R T I F I E D Use and Disclosure of Data Information contained herein is classified as EAR99 under the U.S. Export Administration Regulations. Export, reexport or diversion contrary to U.S. law is prohibited.
  • Page 2 Revision D (Document Number 182-082020)..........................August 2020 Revision E (Document Number 182-012022) ............................ January 2022 Visit www.teledyne-hi.com for WEEE disposal guidance. Description of Symbols and Messages used in this manual WARNING: indicates a hazardous situation, which, if not avoided, could result in death or serious injury.

  • Page 3: Table Of Contents

    HVG-2020B Instruction Manual Table of Contents GENERAL INFORMATION ....................5 ......................6 EATURES ......................7 PECIFICATIONS ......................8 CCESSORIES 1.3.1. Power Supplies....................8 1.3.2. Cables ......................8 INSTALLATION AND SETUP ....................9 ....................9 ECEIVING NSPECTION ..................... 9 ECHANICAL ONNECTIONS 2.2.1.
  • Page 4 HVG-2020B Instruction Manual ..................24 OSITIVE RESSURE PERATION ................24 EMPERATURE AND UMIDITY FFECTS ..................25 IRANI AND NTERACTIONS ..................... 25 ALIBRATION ROCEDURE DIGITAL OPERATION ....................27 ....................27 NSTRUMENT TATES ..................... 27 ERIAL OMMUNICATIONS 5.2.1. General ...................... 27 5.2.2.

  • Page 5: General Information

    HVG-2020B Instruction Manual 1. General Information The HVG-2020B is a small, low-cost electronics module which combines the outputs of a Pirani sensor and a piezo-resistive sensor to provide the user with accurate vacuum measurements over the range of 1×10 Torr to 1000 Torr.

  • Page 6: Features

    There are internal corrections available for the Pirani sensor when used with other gases. NO ELASTOMERS. The vacuum envelope of the HVG-2020B is entirely 300 series stainless steel with welded construction and glass-to-metal seals. Using metal seal vacuum connections eliminates the permeation, degradation and outgassing problems of elastomer O-rings.

  • Page 7: Specifications

    HVG-2020B Instruction Manual Specifications WARNING: Do not operate instruments exceeding the specifications listed below. Failure to heed this warning could result in serious personal injury and/or damage to the equipment. Range: 1x10 Torr to 1000 Torr Accuracy: ± (0.1% of reading + 0.3 Torr) from 1000 to 20 Torr ±...

  • Page 8: Accessories

    2mm bayonet jack. 1.3.2. Cables The HVG-2020B instruments come with a 9 pin D-connector. A Hastings cable (Part # CB-AF-8-HVG9M) is available to interface with the standard 15 pin D-connector found on Hastings power supplies. Cables are available from Hastings in various lengths as well. A variable length cable with bare leads (Part # CB-LDS-XXX-HVG9M) is also available.

  • Page 9: Installation And Setup

    NOTICE: The gauge should be installed in a clean and careful manner. Take care not to drop the product and avoid impacts to prevent damage. The HVG-2020B gauge may be mounted in any position, though care should be taken to prevent objects, particles or condensate from dropping inside the gauge if mounted upside down.

  • Page 10: Plumbing

    The HVG-2020B can come with any of several vacuum connections, including: 1/8” NPT, ¼ VCR, ½” VCR, KF- 16, KF-25, 1.33” CF, 2.75” CF and ½” smooth stub tube. The tube is configured with the vacuum fitting requested.

  • Page 11: Analog Output

    HVG-2020B Instruction Manual 2.3.3. Analog Output The analog signal output is configurable via digital communications. See the instrument label to determine how the instrument was configured at the factory. In Hastings power supplies, the analog output is routed to the display and is also available at terminals on the rear panel.
  • Page 12 HVG-2020B Instruction Manual There are two other analog output options that are available. One is a non-linear curve based on convection gauges. The other is a dual slope output. These are described below. EAR99 Technology Subject to Restrictions Contained on the Cover Page...
  • Page 13 HVG-2020B Instruction Manual Option 12: Non-Linear Analog Output (Convection Style Curve) Pressure to Voltage Conversion p = 0.0001 Torr p = 1000 Torr v = 0.375 V v = 5.659 V Below 7.20 Torr v=(a+cp+ep^2+gp^3)/(1+bp+dp^2+fp^3) volts Above 7.20 Torr v=(a+cp+ep^2+gp^3)/(1+bp+dp^2+fp^3+hp^4) volts Below 7.2 Torr...
  • Page 14 HVG-2020B Instruction Manual EAR99 Technology Subject to Restrictions Contained on the Cover Page Page 14 of 40...
  • Page 15 HVG-2020B Instruction Manual Option 13: Dual Slope Analog Output EAR99 Technology Subject to Restrictions Contained on the Cover Page Page 15 of 40...
  • Page 16 HVG-2020B Instruction Manual The analog output voltage is available on pin 5 and referenced to analog common on pin 8. The voltage output may be set to 1, 5 or 10 volts full scale. The standard value is 10 volts and will have been set as such unless another value was specified at time of order.

  • Page 17: Setpoints

    2.3.4. Setpoints The HVG-2020B has two open-drain setpoints available on the 9 pin D connector. The Hi setpoint will be active when the pressure is above its set value and the Lo setpoint will be active when the pressure is below its set value.

  • Page 18: Serial Connection

    The default port set-up is 19.2K baud, 8 data bits, 1 stop bit, no parity and no flow control. A “carriage return” signals the end of command input. The end of a response message from the HVG-2020B is signaled by a “>”...

  • Page 19: Push-Button Operation

    LEDs blink rapidly. LED Operation The HVG-2020B will go through an internal self-check upon power up and go into normal operation. The LEDs on top of the unit indicate the state of the device as follows: System State...

  • Page 20: Quick Start

    HVG-2020B Instruction Manual Quick Start 1. Unpack and 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. 2. Wire the 9-pin “D” connector according to cable pinout using 24 AWG or other suitable wire.

  • Page 21: Display Operation

    3. Display Operation General The HVG-2020B has an optional color touch screen module that can be assembled with the internal I/O module to provide the user with local control over device operation. All operations done via the touch screen utilize the values associated with the digital lists and commands found in Section 4.

  • Page 22: Menu Button

    HVG-2020B Instruction Manual Available Views: 1. Pressure View: gives the pressure and units. Touching the pressure reading will toggle between decimal notation and scientific notation. Touching the units will cycle through available units. 2. Pressure and Temperature View: The screen adds a temperature indication. It is only meant to be a visual aid indicating ambient temperature (±...

  • Page 23: Screen Orientation

    HVG-2020B Instruction Manual 3.3.1. Screen Orientation The top of the screen is indicated and will rotate 90° each time the screen is pressed. 3.3.2. Set Zero The Set Zero menu will set the pressure reading to zero and should only be done if the actual pressure is known to be well below 1x10 Torr.

  • Page 24: General Operation

    Piezo Sensor Auto-Zero The HVG-2020B will periodically adjust the zero reading of the piezo sensor based on the Pirani reading. This may happen every 20 minutes given a certain set of circumstances: the Pirani pressure reads below 0.1 Torr, the piezo pressure reads less than 20 Torr, and the piezo pressure reads more than 0.5 Torr differently than its...

  • Page 25: Pirani And Gas Interactions

    Custom 1 Custom 2 Calibration Procedure NOTICE: The HVG-2020B is calibrated in nitrogen at the factory and any attempt to adjust the values associated with it will void the calibration. Nitrogen Calibration The HVG-2020B calibration requires digital communication. See Section 5.
  • Page 26 Calibration Using Actual Gas The HVG-2020B can be calibrated using a specific gas to provide better accuracy. 1. Make sure the HVG-2020B has already been calibrated in nitrogen, but this adjustment will not affect the nitrogen calibration. 2. Change the selected gas (R8) to a custom gas: either R8=7 or R8=8 3.

  • Page 27: Digital Operation

    The Pirani sensor list (RL) contains Pirani sensor-specific information. 5.2.4. Command Prompt The prompt character is a greater than symbol ‘>’ (x3E); when this symbol is received, the HVG-2020B is ready to accept a new command. Software can use the prompt as an end of response indicator if this symbol is not used in any text fields (e.g.

  • Page 28: Command Format

    S5 of the target device. As an example, if you want to read the Sensor List from the device with address 0x02, send the command *02 SL. The HVG-2020B will accept a one-digit address, but this could cause problems; *2 SL will work the same as *02 SL, but *2 A will be interpreted as *2A which is addressing device 2A, not 2.

  • Page 29: Rs485 Mode Responses

    (0x99) will be suppressed. The S5 command is an exception to this rule; when the device is the only HVG-2020B on the bus, the command *99 S5 can be used to get the device’s address. Other than the above behavior, responses will be no different than responses in RS232 mode. There will be no address in responses.
  • Page 30 HVG-2020B Instruction Manual BAUD= (Write Only) Set the baud rate Sets the baud rate and stores it in non-volatile memory. Valid options are: 9600, 19200, 38400, 57600 and 115200 High Setpoint (Read/Write) This is the value above which the high setpoint will become active. The same as S21.
  • Page 31 HVG-2020B Instruction Manual RHIGH= Pirani High-range Cal (Factory Write Only) Runs Pirani high-range calibration with provided pressure. RHIGH=30 performs Pirani curve fit calculations at the given pressure of 30 Torr. Should only be performed between 20 and 50 Torr. RMID= Pirani Mid-range Cal (Factory Write Only) Runs Pirani mid-range calibration with provided pressure.

  • Page 32: State Commands

    HVG-2020B Instruction Manual 5.2.8.3. State Commands System State (Read Only) Returns the current system state which can be one of the following: 4 = Normal Operation 8 = Calibration Mode Enter Normal Operation mode (Unlock Write) Returns the system from Calibration Mode (SS8) to Normal Operations (SS4).

  • Page 33: Sensor List Commands

    HVG-2020B Instruction Manual 5.2.8.4. Sensor List Commands Sensor List (Read Only) Returns all items in the Sensor List System Full List Returns all system variables for use in problem determination. Model (Read Only) Returns the Model and Software Version of the device.
  • Page 34 HVG-2020B Instruction Manual Piezo Span (Factory Read/Write) The pressure at which the Piezo sensor span was set. Analog Output Type (Read/Write) Change the type of analog output. It is a 2-digit hex number, with the first digit used for changing the type of analog output. The second digit is only used for logarithmic outputs.
  • Page 35 HVG-2020B Instruction Manual DAC Full Scale Code (Factory Read/Write) The Analog Output D/A value used to represent full scale pressure. If in CALIBRATE state (SS8), writes value to RAM and Sets the Analog Output to the level representing full scale pressure;...
  • Page 36 HVG-2020B Instruction Manual Instrument ID (Read/Factory Write) The Instrument's ID string. This is a text field which accepts a maximum of 63 characters. Control Board Id (Factory Read Only) The Hex ID and Software Version of the Control Board. Piezo Full Scale (Factory Read/Write) The piezo sensor full-scale output used to normalize the pressure reading for curve fitting.
  • Page 37 HVG-2020B Instruction Manual Pirani Gas Bend Factor (Read/Unlock Write) Pirani gas bend factor. Can only be written to when R8 is set to 7 or 8. Determined using SETKG command. Pirani Zero Value (Read/Write) Pirani zero value in counts Pirani Temperature Set Point (Read/Factory Write)

  • Page 38: Troubleshooting

    HVG-2020B Instruction Manual 6. Troubleshooting Authorized Maintenance With proper care in installation and use, the pressure gauge will require little or no maintenance. If maintenance does become necessary, it is best to consult the factory before doing so, since some procedures may require recalibration.

  • Page 39: Warranty

    HVG-2020B Instruction Manual 7. Warranty Warranty Policy See the company website for warranty information at: http://www.teledyne-hi.com/terms&conditions.htm Return Policy See the company website for return information at: http://www.teledyne-hi.com/terms&conditions.htm Any product returned for either warranty or non-warranty repair must have been issued a Return Material Authorization (RMA) form.

  • Page 40: Drawings

    HVG-2020B Instruction Manual 8. Drawings EAR99 Technology Subject to Restrictions Contained on the Cover Page Page 40 of 40...

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