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Bullard AirGuard Operator's Manual

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AirGuard Operators Manual
Revision 1.0

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Summary of Contents for Bullard AirGuard

  • Page 1 AirGuard Operators Manual Revision 1.0...

  • Page 2: Table Of Contents

    Table of Contents Introduction ........................ 3 Safety Recommendations .................... 3 General Safe Use Considerations ................. 3 AirGuard Approvals ..................... 4 AirGuard Specifications ....................5 Sensor Module Specifications ..................6 Warranty ........................7 General Software Interface ..................8 Menu Function Interface Overview ................9 Battery Operation .....................

  • Page 3: Introduction

    AirGuard Introduction Thank you for selecting the Bullard AirGuard. The AirGuard is a portable grade D breathing air system which meets NFPA and OSHA requirements. It uses a three-stage filter system which removes oil, water, particulate matter and odors from the air stream. The AirGuard reports both Carbon Monoxide and differential dew point values on a visible and externally mounted liquid crystal display.

  • Page 4: Airguard Approvals

    After airflow is connected, check the 0.01 micron filter for a fault indication. This is displayed by observing the bubble indicator on the top of the middle valve filter assembly when AirGuard is supplied with compressor air. Should AirGuard at any time experience server shock or impact recheck the calibration via a bump check and adjust if necessary.

  • Page 5: Airguard Specifications

    AirGuard AirGuard Specifications Enclosure: Polypropylene case No. of Breathing Air Lines: 1, 2, 4 or 8 Size /Weight: 1-line: 19.2 lbs, 18.7” x 13.2” x 7” 2-line: 24.6 lbs, 22.6” x 15.8” x 7.6” 4-line: 31.6 lbs, 26.4” x 19.6” x 9”...

  • Page 6: Sensor Module Specifications

    Backlit, 7” diagonal color display Keypad: 3-button, weatherproof w/ tactile feedback Data Logging: 2 points per minute Data Storage Medium: USB memory stick Calibration: Span and Zero, Recommended Monthly, 60 Days Yellow Alert Warning, 90 Days Red Alarm Warning www.bullard.com...

  • Page 7: Warranty

    AirGuard Warranty BULLARD warrants new AirGuard to be free from defects in quality and material under regular use for two years from the date of shipment from BULLARD. The warranty covers both parts and labor, excluding instrument calibration and expendable parts such as calibration gas, filters, batteries, etc.

  • Page 8: General Software Interface

    General Software Interface AirGuard uses a computer control menu interface which communicates using an LCD. Three buttons control this interface. These buttons toggle the menu function selection, allow the adjustment of numeric values, and enter commands. This three-button interface is located directly under the LCD. The buttons are color-coded, (left) red cursor up, (middle) green enter and (right) orange cursor down.

  • Page 9: Menu Function Interface Overview

    1. Green Check = System Operation Satisfactory 2. Yellow Check = System Caution or Warning to which user attention is required. 3. Red “X’ = System Fault - AirGuard requires immediate calibration or service and must not be used until the issue reported is resolved.

  • Page 10: Battery Operation

    Alarm The battery can power the AirGuard for 16 hours of operation. Compressor Pneumatic Connections Prepare to connect the air supply from the compressor to the AirGuard inlet located on the left side of the instrument. Caution! 150 pounds is maximum inlet pressure Inlet Connection www.bullard.com...
  • Page 11 Attach the pneumatic hose from the compressor to the AirGuard. To connect to the AirGuard inlet pull the outside ribbed ring away from the end of the compressor hose and push the connector into the receptacle port. Release the ribbed connector to complete the connection. Make sure the connection is secure.
  • Page 12 Open the enclosure and adjust the delivery pressure by turning the regulator adjustment to the desired pressure to deliver required SCFM as per the NIOSH respirator being used. Clockwise increases the pressure value. Regulator Adjustment Knob www.bullard.com...

  • Page 13: Start-Up

    During this time the main LCD will activate in ≈ 30 seconds, and the main warm-up in progress screen will display. INITIALIZING V1.0 AG123456789 After warm-up functions are finished the AirGuard status screen will display a report of 5 key metrics of operation. 1. CO Alarm 2. Calibration Due 3. Flow Alarm 4.
  • Page 14 After toggling to the exit function, the main operation screen will appear. Under this condition the main screen will display a dash (-) in place of the carbon monoxide reading. This is a safety measure to insure the AirGuard is...
  • Page 15 AirGuard Upon each power up the operator must acknowledge the "AirGuard Status" report before the instrument is ready for operation. To begin active operation, the user must toggle down to the exit function and press enter. AirGuard STATUS CO ALARM...

  • Page 16: Access Code

    Access Code To modify the AirGuard functions you must enter an access code. 0.0 88 Gear Icon DEW PT. Toggle to the gear icon by using the down or orange code button. The gear icon outline will appear black and press enter (green button).

  • Page 17: Bump Test

    AirGuard Bump Test It is recommended that the AirGuard be bump checked before use to ensure proper response to a known calibration standard. Should the reported test values from the bump check not meet the calibration standard value, ±10% of the reference value, it should be recalibrated.

  • Page 18: Sensor Menu

    1. CO (Carbon Monoxide) displays the preset alarm values. These values are not user adjustable. CO SETTINGS SENSOR SETTINGS ALARM THRESHOLD (PPM) WARNING THRESHOLD (PPM) FLOW EXIT EXIT 2. Flow settings adjust both the horn and visual alarms. SENSOR SETTINGS FLOW EXIT FLOW SETTINGS ALARM ACTION EXIT www.bullard.com...
  • Page 19 When powered in a no flow condition, the AirGuard will report a system fail “X” and a red fan icon. Additionally, the system status screen will indicate a flow alarm and sensor flow failures. Once flow is re-established from the compressor the system status will return to a green check and fan will turn green.

  • Page 20: Calibration

    Calibration AirGuard uses a two-step calibration process. BULLARD provides a calibration kit for the AirGuard with all the components to complete this test. (Part Number: 03414-005) From the main screen display and using the keypad, toggle the up or down arrow buttons to activate the gear icon.
  • Page 21 ZERO Remove the compressed air at the inlet before proceeding NEXT EXIT Upon selecting “NEXT” the AirGuard will display a picture of the instrument and the gas connection location. ZERO Apply ZERO gas and select NEXT to Proceed NEXT EXIT...
  • Page 22 Open the gas regulator fully by turning the on/off knob two turns counter clockwise. Upon selecting the “NEXT” the AirGuard will display a “Zero in Progress” display with a timer which counts down the time remaining in the zero function.
  • Page 23 AirGuard If a zero is unsuccessful the AirGuard will display a fault screen. Below is an example of low or no flow associated with the calibration regulator flow, on/off position ZERO SENSOR VOLTAGE (mv): 0 SENSOR FLOW MAIN FLOW RESULTS: FAILED EXIT www.bullard.com...
  • Page 24 Upon selecting “NEXT” AirGuard will display a picture of the instrument and the gas connection location. SPAN Apply SPAN gas and select NEXT to Proceed NEXT EXIT Upon selecting the “NEXT”, AirGuard will display a “Span in Progress” display with a timer which counts down the time remaining in the span function. www.bullard.com...
  • Page 25 RESULTS: SUCCESSFUL EXIT If a span is unsuccessful the AirGuard will display a fault screen. This will appear if gas flow is not present or the signal from the sensor is unsatisfactory due to sensor age. Below is an example of the fail screen due to low flow and resulting sensor response.

  • Page 26: Settings Menu

    It is important to have the correct time and date so the datalog captures the correct information. Note: The clock will not update for daylight savings time. SETTINGS MENU SET CLOCK HORN-SIGNAL EXIT TIME AND DATE MONTH YEAR EXIT TIME AND DATE HOUR EXIT www.bullard.com...
  • Page 27 AirGuard The horn signal either enables or disables the audio horn. When the AirGuard is repowered, these setting resumes enabled which is the default condition. It is recommended that the horn be enabled to ensure alerts and safe operation. SETTINGS MENU...

  • Page 28: Data Capture

    Data Capture AirGuard uses a removable USB which is located on the metal enclosure surrounding the microprocessor. The USB can be read by either a MS Windows or Mac PC. The full data log is found in the 2019-2-19.txt file. That can be imported into a spreadsheet (Excel).
  • Page 29 AirGuard Upon opening in Excel, the software will inquire about import format using text import wizard. The arrow indicated the correct radio icon selection. www.bullard.com...
  • Page 30 After parameter selection the log will open in Excel for further data and plotting analysis. www.bullard.com...

  • Page 31: Battery And Power Supply Operation

    The lead acid battery is expected to last one year or approximately 200 complete charge cycles. The AirGuard can also be operated by using the 12VdC power supply for continuous duty beyond the limit of the battery supply. The main screen icon will change to a plug symbol indicating the power supply is operating. When the 12VDc power supply is being used to operate AirGuard it will also charge the battery.

  • Page 32: General Filter And Sample Train Parts

    General Filter and Sample Train Parts The replacement filters can be ordered using the following part numbers: AirGuard Part Number 15 CFM AGD15FK 30 CFM AGD30FK 50 CFM AGD50and100FK 100CFM AGD50and100FK Position A - 5 Micron Filter. Position B - 0.01 Micro Coalescing Position C - Charcoal Adsorption Filter The filter bowls are attached air flow sample train using a 1/3 or 120°...

  • Page 33: Airguard Parts

    AirGuard AirGuard Parts AirGuard Part Description Part Number 15CFM Replacement Filter Kit AGD15FK 30CFM Replacement Filter Kit AGD30FK 100CFM Replacement Filter Kit AGD 50and100FK Battery Assembly AGDBAT CO Sensor AGDCOS Regulator Assy (CGA600) AGDREGTB AirGuard Calibration Kit AGDCK LCD Clear Overlay (Pk 5)
  • Page 34 Notes: www.bullard.com...

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