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ENMET Bullard AirGuard AGP Operator's Manual

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TM
AirGuard
Operators Manual
Revision 2.08
31 January 2022

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Summary of Contents for ENMET Bullard AirGuard AGP

  • Page 1 AirGuard Operators Manual Revision 2.08 31 January 2022...

  • 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 breathing air system which meets NFPA and OSHA requirements. It uses a three-stage filter system which removes contamination and odors in the breathing 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

    • Perform a bump check before each use. Adjust the calibration if necessary. • 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.

  • 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” 8-line: 34 lbs, 26.4”...

  • Page 6: Sensor Module Specifications

    Sensor Module Specifications Sensor Types: Carbon Monoxide - (0 to 50 ppm) Dew Point - (-20°F to ambient) Flow Rate - (0 to 100 CFM) Sensor Accuracy: Carbon Monoxide: ±5% @ 10 ppm Dew Point: ±2°F @ 50°F dewpoint Air Flow Alarm Pt.: <...

  • 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. Equipment believed to be defective should be returned to BULLARD within the warranty period (transportation prepaid) for inspection.

  • Page 8: General Software Interface

    General Software Interface AirGuard uses a computer control menu interface which communicates using a Liquid Crystal Display (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

    AirGuard Menu Function Interface Overview Upon powering on, the AirGuard will display a warmup screen and then “AirGuard Status” screen which communicates the status of 5 monitored functions. 1. CO Concentration Alarm 2. Calibration Interval Day Count Down 3. CFM Flow Alarm 4.

  • Page 10: Battery Operation

    Battery Operation The AirGuard is a battery-operated portable instrument and should be fully charged before use. To charge the AirGuard, you must connect the charge connector cable to the charging inlet located on the lower right side of the instrument. Insert the 2.5mm Ault connector into the female receptacle, secure the connector by screwing it together, clockwise and then power the charger by connecting to main or wall power 100 to 240VAc power.

  • Page 11: Compressor Pneumatic Connections

    AirGuard 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 the maximum inlet pressure Inlet Connection 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.
  • Page 12 The following chart illustrates the CFM delivered at different inlet pressures. www.bullard.com...
  • Page 13 AirGuard Warning! Maximum Supply inlet pressure cannot exceed 150psi Review the personal protective equipment instructions to be used with AirGuard. You need to know the pressure setting required for the correct flow. 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 approved respirator being used.

  • Page 14: Start-Up

    Start-Up To turn on the AirGuard, you must press the power on button. Once pressed, it will illuminate light blue. During this time the main LCD will activate in ≈ 30 seconds, and the main warm-up in progress screen will display. After warm-up functions are finished the AirGuard status screen will display a report of 5 key metrics of operation.
  • Page 15 AirGuard Warning! Below is an example of an AirGuard Status Screen fault message due to no compressor flow. 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 ensure the AirGuard is operating under the correct conditions of compressor flow Once compressor airflow is established the carbon monoxide value will appear.
  • Page 16 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. Next, the main screen will appear indicating the current CO concentration (ppm) and the differential dew point value in degrees Fahrenheit when connected to compressed air supply.

  • Page 17: Access Code

    AirGuard Access Code To modify the AirGuard functions you must enter an access code. Gear Icon 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). The Access Code Screen will appear.
  • Page 18 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 19: Bump Test

    AirGuard Bump Test It is recommended that the AirGuard is 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. BULLARD provides a calibration kit for the AirGuard with all the components to complete this test.

  • Page 20: Sensor Menu

    Sensor Menu The sensor menu allows the operator to adjust function parameters. This includes CFM (flow) alarm and warning values as well as the audio alarm horn. The Sensor Settings menu allows adjustment of Air Guard set points such as alarm values, CFM flow value and delta dew point units.
  • Page 21 AirGuard Warning! The flow alarm feature is active only upon flow from the compressor and then loss of flow. This is done to avoid audible alarm horn sounding if powered up prior to compressor connection. To adjust the CFM alarm value toggle to alarm setpoint and adjust values between 2 and 9 CFM. www.bullard.com...
  • Page 22 3. Dew Point setting is factory pre-set to alarm as follows: • Yellow Alert/Warning at 15°F • Red Alarm at 10°F The AirGuard can report the delta dew point in either Fahrenheit or Celsius. www.bullard.com...

  • Page 23: Calibration

    AirGuard Calibration 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. Correct activation of the gear icon is observed by the grey outline becoming black.
  • Page 24 Enter the CO Function Enter the Zero Function Prepare the Zero Gas (20.9% Oxygen) cylinder. Attach the regulator to the Zero Air cylinder. The AirGuard will display a warning screen to make sure the compressor is disconnected. Upon selecting “NEXT” the AirGuard will display a picture of the instrument and the gas connection location. www.bullard.com...
  • Page 25 AirGuard Connect the regulator to the calibration port on the side of the AirGuard. 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 26 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 Enter the Span Function Prepare the Span Gas (10 ppm Carbon Monoxide) cylinder. Attach the regulator to the Calibration Span cylinder.
  • Page 27 AirGuard Upon selecting “NEXT” AirGuard will display a picture of the instrument and the gas connection location. 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. Upon completion, the AirGuard will display a screen indicating the sensor voltage (mV) and report sensor flow, main flow and results.
  • Page 28 Below is an example of the fail screen due to low flow and resulting sensor response. www.bullard.com...

  • Page 29: Settings Menu

    AirGuard Settings Menu The settings menu allows you to set the time and date as well as the horn function. 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. www.bullard.com...
  • Page 30 The horn signal either enables or disables the audio horn. When the AirGuard is repowered, these settings will resume enabled which is the default condition. It is recommended that the horn be enabled to ensure alerts and safe operation. www.bullard.com...

  • Page 31: Maintenance Menu

    AirGuard Maintenance Menu AirGuard has several maintenance menus that record and store important information, such as filter replacement installation date, sensor installation date and total run time. www.bullard.com...

  • Page 32: 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 file is named as 2019-2-19.txt file and can be imported into a spreadsheet (Excel). www.bullard.com...
  • Page 33 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 34 After parameter selection the log will open in Excel for further data and plotting analysis. www.bullard.com...

  • Page 35: Battery And Power Supply Operation

    AirGuard Battery and Power Supply Operation The AirGuard is battery powered. The maximum expected battery operation is 16 hours when operating from a full charge. The relative charge of the battery is displayed on the main display and this can be queried as to status by the user on demand.

  • Page 36: Case Exterior

    AirGuard Maintenance Case Exterior When dirty or dusty wipe down with water (wet cloth) and dry with a soft cloth. The device contains electrostatically sensitive components. Do not open or repair the device without using appropriate electrostatic discharge (ESD) protection. The warranty does not cover damage caused by electrostatic discharges.

  • Page 37: General Filter And Sample Train Parts

    AirGuard 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 100 CFM AGD50AND100FK Position A - 5 Micron Filter. Position B - 0.01 Micron Coalescing Position C - Charcoal Adsorption Filter The filter bowls are attached to the air flow sample train using a 1/3 or 120°...

  • Page 38: Airguard Parts

    AirGuard Parts AirGuard Part Description Part Number 15CFM Replacement Filter Kit AGD15FK 30CFM Replacement Filter Kit AGD30FK 100CFM Replacement Filter Kit AGD50 and 100FK Battery Assembly AGDBAT CO Sensor AGDCOS Regulator Assy (CGA600) AGDREGTB AirGuard Calibration Kit AGDCK LCD Clear Overlay (Pk 5) AGDLC AirGuard 15 CFM AGD15HA...
  • Page 39 AirGuard Notes: www.bullard.com...

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