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Air Monitor VELTRON II Installation, Operation And Maintenance Manual

Microprocessor based pressure & flow smart transmitter
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Installation, Operation,
and Maintenance Manual
VELTRON II
Microprocessor Based
Pressure & Flow "Smart" Transmitter
Versions 5.3X
Installation, Operation & Maintenance
Air Monitor Corporation provides complete
technical support between the hours of
7 a.m. and 5 p.m. PST, M-F
Contact our Service Department
Toll Free: 1-800-AIRFLOW
or fax us at 1-707-526-2825
Air Monitor Corporation
VELTRON II - IO&M Manual
116-011-98.P65 (8/30/10)

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Summary of Contents for Air Monitor VELTRON II

  • Page 1 Air Monitor Corporation provides complete technical support between the hours of 7 a.m. and 5 p.m. PST, M-F Contact our Service Department Toll Free: 1-800-AIRFLOW or fax us at 1-707-526-2825 Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 3: Table Of Contents

    TRANSMITTER SCALING & CONFIGURATION .................19-26 LOW PASS FILTER SELECTION ....................27 5.10 AUTO-zero CONFIGURATION ....................... 28 5.11 AUTO-purge CONFIGURATION ..................... 29 5.12 AUTO-calibration CONFIGURATION ....................30 5.13 ALARM CONFIGURATION ......................31-32 Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 4 TRANSMITTER INPUT CALIBRATION ..................53-58 TRANSMITTER OUTPUT CALIBRATION ...................59-60 SECTION 7 – MAINTENANCE ....................... 61 SECTION 8 – TROUBLESHOOTING ....................62-63 SECTION 9 – PARTS LIST ........................64-65 SECTION 10 – CUSTOMER SERVICE ....................66 Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 5: Instrument Warranty

    INSTRUMENT WARRANTY INSTRUMENT WARRANTY Air Monitor Corporation (hereinafter referred to as “Seller”) warrants that at the time of shipment, products sold pursuant to this contract will be free from defects in materials and workmanship, and will conform to the specifications furnished or approved in writing by Seller.

  • Page 6: Section 1 - General Information

    1 – GENERAL INFORMATION 1.1 – DESCRIPTION The VELTRON II is an ultra-low differential pressure "smart" transmitter designed to convert the low magnitude pressure signals generated by airflow stations and probes, or static pressure sensors into dual transmitter output signals (4- 20mA, 0-5VDC or 0-10VDC) linear to pressure or flow.

  • Page 7: Section 2 - Performance Specifications

    Temperature Limits. –20 to 180ºF Storage; +40 to 140ºF 24VDC 9.6W 9.0W Operating. 120VAC 19.2VA 18.67VA 106VA 92VA Humidity Limits. 0-95% RH, non-condensing. Circuit Protection. Power input is isolated, fused, and reverse polarity protected. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 8: Section 3 - Features

    3.4 – AUTO-purge MANAGEMENT (option) For "dirty process air" applications requiring the use of an Air Monitor AUTO-purge system, the VELTRON II provides the capabilities of establishing purge frequency and duration, while also giving the user a choice of either internally timed cycle frequency or externally triggered purge initiation.

  • Page 9: Alarm (Option)

    When used in conjunction with an external input (second transmitter) applied to the special function input terminals, the VELTRON II can perform one of the Special Functions listed below. Within the Operator Setup menu, both the external input and the internal transmitter signals can be individually scaled to achieve a correct weighted basis. The resulting Special Function output is available as an analog output and/or for the display on the optional Enhanced Display.

  • Page 10: Data Display

    3.8 – K-FACTOR The VELTRON II is equipped with a K-factor feature which allows for the introduction of a bias and/or gain factor into the transmitter's flow calculations. The K-factor feature is intended to be used in two types of applications: 1.

  • Page 11: Section 4 - Installation

    Information Sheet" provided with unit), and requires no additional calibration/verification prior to installation. 4.2 – LOCATION • The VELTRON II is housed in a NEMA 1 enclosure which provides some degree of protection which is sufficient for most clean indoor locations.

  • Page 12: Process Connections

    – Low Port on VELTRON II connects to sensor from monitored room. Although any size of tube/pipe can be used, the response time of the VELTRON II to process change increases with increasing tube/pipe size or increasing in tube/pipe length.

  • Page 13: Power/Signal Connections

    4.5 – POWER/SIGNAL CONNECTIONS All power and signal wiring is done at the terminal strip at the left side of the VELTRON II. Figure 4.3 below represents the terminal strip and the connections for power input and the various inputs/outputs available (review Factory Set-Up Information Sheet provided with the unit for which inputs/outputs are included with your unit).
  • Page 14 SECTION 4 – INSTALLATION 4.5 – POWER/SIGNAL CONNECTIONS (con't) Transmitter Output 1 and 2 (Terminals 1, 2, and 3). These outputs are sourced (powered) by the VELTRON II. 4-20mADC: Maximum load resistance is 750 ohms. Review Factory Set-Up Information Sheet 0-10VDC: Minimum load resistance is 5000 ohms.

  • Page 15: Input/Output Selection

    Inputs have a single jumper covering two pins, and outputs have two jumpers covering four pins. 4.7 – DISPLAY CONTRAST ADJUSTMENT To compensate for different ambient lighting conditions and viewing angles, the VELTRON II display's contrast can be adjusted for optimum visibility.

  • Page 16: Section 5 - Operation

    VELTRON II Factory Set-Up Information Sheet, included with the unit. Review this information and verify that the VELTRON II setup is correct for your applications. If any problems or discrepancies are detected, contact Air Monitor's Customer Service Department at 1-800-AIRFLOW prior to proceeding.

  • Page 17: Normal Operation

    "Auxiliary Alarm On" LED will light and corresponding alarm relay will be energized (after set delay time). *Note: The interval clock for AUTO-zero and AUTO-purge cycles is initiated when the VELTRON II's power switch is turned on. The time intervals preset in Operator Setup menu will then start their timing sequence.

  • Page 18: Configuration

    The customer can verify configuration and change certain parameters (within defined ranges) by entering the VELTRON II's Configuration mode. This is accomplished using the four pushbuttons located on the VELTRON II's top cover. The type (i.e., 4-20mA, 0-5V, 0-10V) of available outputs can also be changed by jumper selections on I/O Board (see Section 4.6).

  • Page 19: Pushbutton Definition

    *Must be pressed and held before other button(s) are pressed. NOTE Pushbuttons are momentary type and should be quickly pressed and released to initiate desired change, unless otherwise instructed to press and hold. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 20: Configuration Programming

    OPERATOR SETUP Pressing ENT again will enter the user into the Main Menu of configuration programming. The display will indicate: Operator Password Selection Refer to next page for Main Menu Selections. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 21 Turns AUTO-purge function ON or OFF, and selects internal/external activation, interval, purge duration, after purge time. AUTO-calibration Not installed with VELTRON II. Alarm Configuration Turns alarm function ON or OFF, select Alarm Type, High and Low Setpoints, Deadband selection, and Alarm Delay.
  • Page 22 "arrow" symbol displayed and will display Not Installed beneath the selection description. Example: Auto-Purge Not Installed The remainder of this Section details steps to verify or change Configuration Programming of all Main Menu Selections. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 23: Operator Password Selection

    5. Use UP or DN to select remaining parameters to be changed. 6. Follow Step 4 to make any changes to parameters. 7. To return to Main Menu, select Return to MAIN MENU in Operator Password Selection menu and press ENT. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 24: Transmitter Scaling & Configuration

    5.8 – TRANSMITTER SCALING & CONFIGURATION This Main Menu selection is where all application specific data is entered to configure the VELTRON II for a unique application. Data is entered under sub-menu, Process Configuration, and includes as applicable: Process Type, Process Minimum/Maximum, Duct Area/Units, etc.
  • Page 25 Display of process is not affected by this selection, and will indicate the actual process value. If either optional Analog Output 3 or 4 is selected to represent TRANSMITTER, it will act the same as Transmitter Output 1 and 2. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 26 Standard meters per second Sm/s Standard meters per minute Sm/m Standard meters per hour Sm/hr Normal meters per second Nm/s Normal meters per minute Nm/m Normal meters per hour Nm/hr Percent Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 27 T/hr Tons per hour T/day Tons per day gm/s grams per second kg/s kilograms per second kg/m kilograms per minute kg/hr kilograms per hour Percent Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 28 (0 to 2.5000) XX.XXX (0 to 25.000) XXX.XX (0 to 250.00) X,XXX.X (0 to 2,500.0) XX,XXX (0 to 25,000) XXX,XX0 (0 to 250,000) XXXX,X00 (0 to 2500,000) XXXX,000 (0 to 9999,000) Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 29 Barometric Pressure 20.00 to 32.00 in.Hg 29.92 in.Hg Selection in 0.01 increments Elevation Elevation 0 to 10,000 Feet or 0 Feet* 0 to 3,048 Meters Selection Continued on next page Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 30 Steps in this Section marked with * indicate values or choices previously made in Process Congiuration. Configuration Menu 5 Available only with Calculate Flow. 6 Depends on selection immediately above. Return to Available only with Calculate D.P. MAIN MENU Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 31 18. To return to the Transmitter Scaling & Configuration menu, select EXIT in the Calculator for Max Diff. Pres. or Flow sub-menu and press ENT. 19. To return to the Main Menu, select Return to MAIN MENU in the Transmitter Scaling & Configuration menu and press ENT. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 32: Low Pass Filter Selection

    Main Menu. Note: If user desires not to change the setting and return to Main Menu, press ESC. Unit will remain programmed as it was originally. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 33: Auto-Zero Configuration

    5. Use UP or DN to select remaining parameters to be changed. 6. Follow Step 4 to make any changes to parameters. 7. To return to Main Menu, select Return to MAIN MENU in AUTO-zero Configuration menu and press ENT. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 34: Auto-Purge Configuration

    5. Use UP or DN to select remaining parameters to be changed. 6. Follow Step 4 to make any changes to parameters. 7. To return to Main Menu, select Return to MAIN MENU in AUTO-purge Configuration menu and press ENT. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 35: Auto-Calibration Configuration

    VELTRON II SECTION 5 – OPERATION 5.12 – AUTO-calibration CONFIGURATION Operator Setup Main Menu Auto-Calibration - Auto-purge Configuration Auto-Cal Not Installed not installed on - Alarm Configuration Veltron II Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 36: Alarm Configuration

    Type and Format Alarm 1 Delay 0.0 to 10.0 Min. 5.0 Min. in 0.1 increments Alarm 2 Delay 0.0 to 10.0 Min. 5.0 Min. in 0.1 increments Return to MAIN MENU Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 37: Controller Configuration

    7. To return to Main Menu, select Return to MAIN MENU in Alarm Configuration menu and press ENT . 5.14 – CONTROLLER CONFIGURATION Operator Setup Main Menu - Alarm Configuration Controller not Controller Not Installed installed on Veltron II - Special Function Config. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 38: Special Function Configuration

    0.00 to 100.00% 0.00% in 0.01 increments % Dev Alarm Delay 0.0 to 10.0 Min. 5.0 Min. in 0.1 increments 3 Available only if Process Return to Type is Flow. MAIN MENU Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 39 5. Use UP or DN to select remaining parameters to be changed. 6. Follow Step 4 to make any changes to parameters. 7. To return to Main Menu, select Return to MAIN MENU in Special Function Configuration menu and press ENT. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 40: K-Factor Configuration

    0.01 increments X.XX% Value based Max. Diff. Pressure calculated or X.XXXXX in. WC selected Gain / Bias *Available range depends Return to on operating span versus MAIN MENU natural span. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 41 5. Use UP or DN to select remaining parameters to be changed. 6. Follow Step 4 to make any changes to parameters. 7. To return to Main Menu, select Return to MAIN MENU in parameter menu and press ENT. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 42: Standard Display Configuration

    5. Press UP and display will indicate: LINE 2 PARAMETER Selection 6. Press ENT and display will indicate current parameter selected to display on Line 2 (see Parameter List in Section 5.18 for available selections). Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 43 Cursor indicates position to be set. There are 20 positions available to hold custom text. 18. Use UP or DN to scroll through available characters (see ASCII Chart in Section 5.18 for available characters). Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 44 Jumps up five characters at a time, to the desired character. DN + UP: Jumps down five characters at a time, to the desired character. Hold first key, then press second key. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 45: Enhanced Display Configuration

    Enhanced Display Configuration 2. Press ENT to enter Enhanced Display Configuration menu. Display will indicate: LINE 1 3. Press ENT to enter Setup menu. Display will indicate: LINE 1 FILTER Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 46 14. Use UP or DN to scroll to desired filter setting. Press ENT and filter setting will be stored in memory and display will indicate as in Step 12. 15. Press UP and display will indicate: LINE 2 EXIT 16. Press ENT then UP and display will indicate: LINE 3 Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 47 ESC + ENT: Exits "Set Custom Text". Does not enter any changes to the display since the last time ENT was pressed. UP + DN: Jumps up five characters at a time, to the desired character. DN + UP: Jumps down five characters at a time, to the desired character. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 48 Percent Deviation has not been selected as a Special Function. † Available only if Percent Deviation has been selected as a Special Function. Available only if Special Function option has been installed. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)
  • Page 49 VELTRON II SECTION 5 – OPERATION 5.18 – ENHANCED DISPLAY CONFIGURATION (con't) ASCII Character Chart < " >   & ¥ Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 50: Analog Output Configuration

    5. Use UP or DN to select remaining parameters to be changed. 6. Follow Step 4 to make any changes to parameters. 7. To return to Main Menu, select Return to MAIN MENU in Analog Output Configuration menu and press ENT. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 51: Transducer Span Selection

    7. To return to Main Menu, select Return to MAIN MENU in Transducer Span Selection Menu and press ENT. Note: If unit is configured as bi-polar, Xdcr Natural Span selections will be in the form of ±x.xx, and Xdcr Operating Span will have a Min and Max selection. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 52: Transmitter Input Calibration

    - Output 2 Span Instructions - Output 3 Zero - Output 3 Span - Output 4 Zero - Output 4 Span - Return to MAIN MENU 1 Depends on options purchased. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 53: Power Supply Calibration

    3. If supply voltage is less than 6.900V or greater than 7.100V, adjust R36 on I/O Board (see Figure 5.2) until acceptable voltage reading is displayed on line 2. 4. When done, press ENT to return to Main Menu. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 54: Transducer Characterization Selection

    1. 5,000 Data Point 4 7250 to 7750 in increments of 1. 7,500 Data Point 5 9750 to 10250 in 10,000 increments of 1. Return to MAIN MENU Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 55: Network Configuration

    5. Use UP or DN to select remaining parameters to be changed. 6. Follow Step 4 to make any changes to parameters. 7. To return to Main Menu, select Return to MAIN MENU in Network Configuration menu and press ENT. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 56: Menu Inactivity Timeout Selection

    Main Menu. Note: If user desires not to change the setting and return to Main Menu, press ESC. Unit will remain programmed as it was originally. Air Monitor Corporation VELTRON II - IO&M Manual 116-011-98.P65 (8/30/10)

  • Page 57: Section 6 - Calibration

    This section will detail steps necessary to calibrate the VELTRON II. Calibration is accomplished using the four programming push buttons detailed in Section 5. This section can be accomplished with VELTRON II mounted in its operating location or at a test bench in a calibration lab.

  • Page 58: Transmitter Input Calibration

    Calib: X.XX in.WC 6. Apply input pressure (as read on manometer) to the High port of the VELTRON II. Adjust pressure to equal the transducer natural span value, which is indicated on the display. 7. Press ENT, and display will indicate:...
  • Page 59 SECTION 6 – CALIBRATION 6.3 – TRANSMITTER INPUT CALIBRATION (con't) 6.3.1 (con't) 9. Remove input pressure from High port on VELTRON II. 10. Press ESC and then UP, and depending on whether Special Function option is installed display will indicate either: Special Func.
  • Page 60 Calib: X.XX in.WC 6. Apply input pressure (as read on manometer) to the High port of the VELTRON II. Adjust pressure to equal the transducer natural span value, which is indicated on the display. 7. Press ENT, and display will indicate:...
  • Page 61 SECTION 6 – CALIBRATION 6.3 – TRANSMITTER INPUT CALIBRATION (con't) 6.3.2 (con't) 9. Remove input pressure from High port on VELTRON II. 10. Press ESC and then UP, and depending on whether Special Function option is installed display will indicate either: Special Func.
  • Page 62 Transducer Zero Calib: -X.XX in.WC 4. Apply input pressure (as read on manometer) to the Low Port of the VELTRON II. Adjust pressure to equal the positive equivalent of the minimum (negative) transducer natural span value, which is indicated on the display.
  • Page 63 SECTION 6 – CALIBRATION 6.3 – TRANSMITTER INPUT CALIBRATION (con't) 6.3.3 (con't) 12. Remove input pressure from High port on VELTRON II. 13. Press ESC and then UP, and depending on whether Special Function option is installed display will indicate either: Special Func.

  • Page 64: Transmitter Output Calibration

    DMM should be reading minimum value; 0.00 ± 0.01 volts or 4.00 ± 0.01mA. 5. If DMM is reading out of tolerance, use UP or DN to adjust VELTRON II output for an acceptable DMM reading. Depending on DMM's selected range, the UP or DN button may need to be pressed and held for a period of time before any change occurs in the DMM's display.
  • Page 65 20.00 ± 0.01mA. 9. If DMM is reading out of tolerance, use UP or DN to adjust VELTRON II output for an acceptable DMM reading. 10. Once an acceptable span reading is obtained, press ENT and then UP and display will indicate.

  • Page 66: Section 7 - Maintenance

    SECTION 7 – MAINTENANCE 7 – MAINTENANCE The VELTRON II is a solid state device having few mechanical parts requiring special periodic maintenance. The following maintenance steps are not requirements, but guidelines for establishing a maintenance program for your specific installation.

  • Page 67: Section 8 - Troubleshooting

    SECTION 8 – TROUBLESHOOTING 8 – TROUBLESHOOTING Personnel should be familiar with the operation of the VELTRON II (see Section 5) before performing any troubleshooting. Note: Prior to performing any troubleshooting, turn power switch OFF. After 10 seconds, turn power switch ON. If problem still exists, proceed with troubleshooting steps.
  • Page 68 VELTRON II SECTION 8 – TROUBLESHOOTING 8 – TROUBLESHOOTING (con't) Personnel should be familiar with the operation of the VELTRON II (see Section 5) before performing any troubleshooting. Problem Solution AUTO-purge Function is – Verify AUTO-purge is on, interval and activation are properly set (see Section 5.11).

  • Page 69: Section 9 - Parts List

    SECTION 9 – PARTS LIST 9 – PARTS LIST The following drawing with part numbers lists components of the VELTRON II that are easily replaced by the user. When contacting the Customer Service Department about parts, please have the applicable Factory Set-Up Information sheet available for reference.
  • Page 70 SECTION 9 – PARTS LIST 9 – PARTS LIST The following drawing with part numbers lists components of the VELTRON II that are easily replaced by the user. When contacting the Customer Service Department about parts, please have the applicable Factory Set-Up Information sheet available for reference.

  • Page 71: Section 10 - Customer Service

    Confirmation of Return Authorization with shipping instructions will be sent via facsimile. Equipment to be returned to Air Monitor should be returned in its original shipping container if possible. If this is not possible, ensure equipment is packaged sufficiently to protect it during shipment.

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