MSA G1 Operating Manual
  1. Manuals
  2. Brands
  3. MSA Manuals
  4. Respiratory Product
  5. G1 SCBA
  6. Operating manual

MSA G1 Operating Manual

Scba; niosh cbrn and nfpa 1981/1982
Hide thumbs Also See for G1:
Table of Contents

Advertisement

Quick Links

See also: Instruction Manual , Operating Manual
Operating Manual
G1
US
SCBA
NIOSH CBRN and NFPA 1981/1982
Order No.: 10158406/01
MSAsafety.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the G1 and is the answer not in the manual?

Questions and answers

Related Manuals for MSA G1

Summary of Contents for MSA G1

  • Page 1 Operating Manual SCBA NIOSH CBRN and NFPA 1981/1982 Order No.: 10158406/01 MSAsafety.com...
  • Page 2 The warranties made by MSA with respect to the product are voided if the product is not installed, used and serviced in accordance with the instructions in this manual. Please protect yourself and your employees by following the instructions.

  • Page 3: Table Of Contents

    G1 Regulator (also known as Demand Valve) ................13 G1 Heads-Up Display (HUD) ......................13 Cylinder and Valve Assembly ......................14 G1 Pressure Reducer with Primary Low Pressure Warning Device ..........14 G1 PASS Device ..........................15 G1 Harness and Carrier Assembly ....................17 G1 Speaker Module (Optional) ......................
  • Page 4 SCBA Donning Procedure ....................... 32 Facepiece Donning Procedure ......................36 During Use ..........................41 Cold Weather Operation ........................43 G1 Heads-Up Display (HUD) ....................44 G1 HUD Pressure Status ........................ 44 G1 HUD Alarm Status ........................46 Control Module ........................48 PASS Device Functionality ......................
  • Page 5 Contents Cylinders ..........................67 12.1 Safety Precautions for MSA Self-Contained Breathing Apparatus Cylinders ........67 12.2 Preparing Cylinder for Use ......................69 12.3 Installing Quick Connect Adapter to Cylinder .................. 71 12.4 Changing the Cylinder ........................72 12.5 Charging Cylinders .......................... 73 UAC Fitting ..........................

  • Page 6: Safety Regulations

    Compressed Gas Association Specification G-7 for quality verification level (grade) D air or equivalent specifications. In fire service applications, MSA recommends breathing air quality in accordance with NFPA 1989. The cylinder shall meet applicable DOT specifications. Do not alter this SCBA. Altering will void the Intrinsic Safety rating and may affect the Intrinsic Safety of the device.

  • Page 7: Niosh Cbrn Approval Information

    Safety Regulations intrinsically-safe and conform to UL 913 6th edition, Class I, Division 1, Groups C and D, Temper- ature Rating T1.. Use the SCBA with adequate skin protection when worn in gases and vapors that poison by skin absorption (for example: hydrocyanic-acid gas). Approval for use against CBRN chemical warfare agents is maintained only when using approved components and following instructions listed on the NIOSH approval matrix (P/N 10158405).

  • Page 8: Nfpa Approval Information

    Standard on Personal Alert Safety Systems (PASS) when configured in accordance with the NFPA approval. The MSA G1 SCBA must be used in accordance with NFPA 1500 Standard on Fire Depart- ment Occupational Safety and Health Program to maintain NFPA 1981.

  • Page 9: Intrinsic Safety Approval Information

    Safety Regulations Intrinsic Safety Approval Information The MSA G1 SCBA equipped with a mask mounted G1 Regulator with HUD, battery, power, speaker and control module are intrinsically-safe and conform to UL 913 6th edition, Class I, Division 1, Groups C and D, Temperature Rating T1.

  • Page 10: Contact Information

    Safety Regulations Contact Information In the event of a product concern, contact your local MSA authorized repair center or distributor, who will provide the necessary information to MSA for issue resolution. To report any serious concerns or to inquire about the products use the following contact information:...

  • Page 11: Description

    Description Description The MSA G1 - referred to hereafter as SCBA - is a pressure-demand self-contained breathing appa- ratus (SCBA) operating independent of the ambient air for use in atmospheres immediately dangerous to life or health. Breathable air is supplied to the user from a compressed air cylinder via a pressure reducer, a regu- lator and a facepiece.

  • Page 12: G1 Facepiece

    Description G1 Facepiece The facepiece provides breathable air from the regulator past an inhalation valve to the inside of the lens (to minimize lens fogging) and then through the check valves into the nosecup. Exhaled air is directed out of the exhalation valve by the nosecup directly to ambient air. The face seal provides a snug, comfortable fit, and tight seal.

  • Page 13: G1 Regulator (Also Known As Demand Valve)

    Description G1 Regulator (also known as Demand Valve) The mask mounted G1 Regulator is a pressure-demand regulator, which maintains a positive pres- sure in the facepiece while the SCBA is in use. The positive pressure regulator reduces the pressure coming from the pressure reducer further to provide breathable air to the user.

  • Page 14: Cylinder And Valve Assembly

    4500 * As approved by NIOSH G1 Pressure Reducer with Primary Low Pressure Warning Device The pressure reducer reduces the cylinder pressure to an intermediate pressure, which is in turn further reduced by the regulator to a pressure that is respirable by the user. The pressure reducer incorporates a fail safe design which ensures air flow to the user in the event of a malfunction within the pressure reducer.

  • Page 15: G1 Pass Device

    NIOSH regulation states that the primary low pressure warning device must alert the user at 35%  2%. MSA sets all low pressure warning signals to the mean of the requirement, hence 35 %.
  • Page 16 The power module has a data logging feature that records information about the SCBA while the control module is turned on. This data log memory can be accessed using the MSA A2 Software. The power module contains an internal real time clock. This clock can be reset using the MSA A2 Software.

  • Page 17: G1 Harness And Carrier Assembly

    Description G1 Harness and Carrier Assembly The harness and carrier assembly consists of: Backplate (houses the power module, battery module, and pressure reducer) Cylinder band with latch to hold the cylinder Shoulder pads Adjustable pull straps Lumbar pad Waist belt...

  • Page 18: G1 Speaker Module (Optional)

    Description G1 Speaker Module (Optional) The speaker module amplifies and clarifies the speech from the facepiece during use. When inhaling, the breathing sound will not be amplified (optional). The speaker module is turned OFF when the complete SCBA is turned OFF and can also be activated/deactivated with its button. Pressing of the button is acknowledged by a beep.

  • Page 19: Size Selection

    Size Selection Size Selection Regardless of facial dimensions and respirator sizing charts, an actual respirator fit test, either quali- tative or quantitative must be performed to ensure the correct respirator size selection. Fit test the respirator size relative to your facial features and dimensions. The safety adminis- trator or program manager might assist in selecting the initial size to try.

  • Page 20: Respirator Fit Test

    Size Selection Respirator Fit Test WARNING The user must perform a respirator fit test (Quantitative Test or Qualitative Test) and follow all warn- ings and limitations specified. Failure to do so can result in serious personal injury or death. A qualitative or quantitative respirator fit test must be carried out routinely for each wearer of this respi- rator to determine or confirm the amount of protection that the respirator provides.

  • Page 21: Visual Inspections

    Functional Tests section, the SCBA must be removed from service and must be checked and corrected for proper operation by an MSA trained or certified repairperson before using. Failure to follow this warning can result in serious personal injury or death.

  • Page 22: Facepiece

    Visual Inspections Facepiece Inspect the lens for cracks, scratches, deformation, and color change. Check the facepiece rubber for a tight seal and secure fit to the lens ring. Ensure the exhalation valve is clean and operates easily. The valve must move off the seat and return when released (from inside the facepiece).

  • Page 23: Cylinder And Valve Assembly

    Department of Transportation (DOT) regulations. DOT regulations require that composite cylinders be retired from service after the fifteenth year. This does not include cylinder valve assemblies that may be reused. Contact an MSA distributor or sales associate for more infor- mation regarding this policy.

  • Page 24: Control Module

    Visual Inspections Control Module Check the displays for cracks and other visible damage. Ensure the buttons are not damaged or missing. Ensure the hose assembly is securely attached to the control module. Ensure the needle and gauge face on the gauge are clearly visible and that the gauge stem is not bent.

  • Page 25: Extendaire Ii

    Following inspection, the date and initials of the designated inspector should be recorded. A more detailed record of the operations performed can be noted on an inspection and maintenance log, available from MSA. When the inspection data has been recorded, the SCBA is ready for functional tests.

  • Page 26: Functional Tests

    If the SCBA does not function properly as described in the Functional Tests section, the SCBA must be removed from service and must be checked and corrected for proper operation by an MSA trained or certified repairperson before using. Failure to follow this warning can result in serious personal injury or death.

  • Page 27: Check Function Of The Control Module, Power Module, Hud And Primary Low Pressure Warning Device

    Functional Tests (11) Breathe normally. Ensure proper regulator response.  The regulator should NOT make any unusual sounds including whistling, chattering, or  popping (12) Remove the facepiece from the face. (13) Ensure that air flows freely. (14) Push the regulator release buttons. Ensure that air flow stops.
  • Page 28 Functional Tests Pressurize the system by opening the cylinder valve. Observe the starting sequence of the LEDs on the regulator.  Listen for the power module to sound and for the primary low pressure warning alarm to sound  briefly. Ensure that the buddy lights are flashing green.
  • Page 29 Functional Tests If the primary low pressure warning device, control module, power module, or HUD does not function properly, the SCBA must be removed from service. Speaker Module Function Pressurize the system and ensure the PASS device and HUD are turned ON. Attach the regulator to a facepiece and begin breathing air.

Table of Contents