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Hersteller: Bullard Dateigröße: 211.4 kb Dateiname: Unterrichtssprache:

HE particulate filters are 99.97% effective against all particulate aerosols. Filters are supplied in quantities of 3 filters and gaskets per box. NOTE The following abbreviation is approved by NIOSH to indicate the particulate filter approval for PAPRs: HE = High Efficiency Particulate Air Filter for Powered Air-Purifying Respirators Replacing the PA1FG High Efficiency Filter The high efficiency filter and gasket must be replaced when: 1. An airflow check with the airflow indicator shows that any part of the ball is blow the PASS line (see instructions on page 4); 2. When the high efficiency filter has been damaged; or 3. In compliance with any applicable administrative procedures. Carefully remove a new HE filter from its packaging. NOTE Care must be taken to avoid touching or allowing any objects to contact the exposed filter pleat. Hold the filter only by its edges. Check that the filter has a filter gasket and that it is positioned flat behind the filter lip. NOTE Always use a new filter gasket when refitting or changing a filter. Unclip the blower latches and remove the back cover and belt assembly from the blower unit (see Figure 4). Check that the mating faces of blower unit body and the back cover are free from debris or any deep scratches. Remove the old filter and gasket and discard in accordance to local, state and federal guidelines.. Slide the filter and filter gasket into the blower unit (see Figure 5). Check that the filter gasket is positioned flat on the rear of the blower. Refit the back cover and belt, ensuring that the lip of the cover fits over the blower edges and the male and female locking latches are located together and lined up properly. The back cover will fit on the unit in only one direction. The latches will not line up properly if the back cover is put on the wrong way. Snap shut the blower latches once the back cover is oriented properly, and check to make sure that the latches are secure. Refer to the “Checking Air Flow with the Airflow Indicator” section on the previous page for instructions on checking the filter for clogging. High Efficiency Filter 5 Figure 4 Figure 5 PA20 Series Powered Air-Purifying Respirator PA1/PA2 Blower Assembly User Manual Donning the Blower and Respirator Prepare to don the blower and hood in a safe, hazard- free area and do the following: Check that the blower unit is securely clamped closed. Prior to assembling the system, fit the blower and belt around the user’s waist. With the blower at the rear of the user, adjust the belt for a comfortable fit. Remove the belt and blower. Put on the belt and blower assembly and make any final adjustments to the belt as necessary, keeping the breathing tube and hood behind the head. Switch on the blower. Place the hood on the head making any final adjustments to the fit as required at this time to ensure a comfortable and stable fit. See the CC20/PA20 Series Tychem Hood User Manual. on Ensure that the filter is an approved filter suitable for the challenge being applied and is compatible with the PAPR. The use of any filter not approved with the P PA2BU units may put the user at risk and could result in death or serious injury For Respirator Hoods: Insert the breathing tube 5 inches into the air entry sleeve at the rear of the hood being used Install nylon clamp over air entry sleeve and breathing tube, inserting clamp locks through two holes in plastic anchorplate that is sewn into hood. Locks should face away from user’s neck (see Figur Engage clamp locks and squeeze together until tight. For Loose-Fitting F The 20LFM and 20LFL hoods h connector on the back. special connector on the hood end with bayonet type pins. PA1BU Low Battery Alarm he PA1BU Blower unit is fitted with a Low Battery Alarm. his device will activate if the battery power is below acceptable levels. The device is indicating that insufficient airflow is imminent. The user should do the following: Leave the hazard area, remove the headpiece, disconnect the breathing tube from the hood and check the airflow with the airflow indicator (see page 5). If the airflow indicator indicates insufficient airflow, the battery should be fully charged (see “Battery Pack” age 4). he PA1BU Low Battery Alarm should not be relied upon as an indication of a low air flow condition. Only the Air Flow Indicator should be utilized for checking for adequate air flow. NOTE WARNING Do not enter a hazardous area until you are sure that the blower and hood are fully operational and the blower is running. The user should periodically leave the hazardous area to check the airflow through the system. If the PA1 Low Battery Alarm should sound, or if the user experiences any laboring of breath, any grittiness between the teeth or any odors from the hazard, he/she should leave the hazardous area immediately. Failure to observe these warnings could result in death or serious injury. Figure 6 Figure 7 6 Donning Low Battery Insert the bayonet connector of the PA20LFBT breat...

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