3M Versaflo TR-600 Serie Manual De Instrucciones página 16

3. Battery pack: Confirm that the battery pack is fully charged or charge is sufficient for duration of the
work period. Ensure plastic surrounding electrical contact pins are intact. The battery pack must be
latched to the motor/blower. Gently tug on the battery to ensure secure connection.
4. Breathing tube: Examine the entire breathing tube for tears, holes or cracks. Bend the tube to verify
that it is flexible. Ensure the gaskets located at both ends of the breathing tube (i.e. headgear and air
source connections) are present and not damaged. The breathing tube should fit securely into the
air source connection.
5. Headgear: Follow the User Instructions supplied with your 3M headgear to ensure correct system
operation.
6. Airflow check:
The TR-600 is pre-calibrated to ensure required airflow. However, the 3M™ Airflow Indicator
TR-971 must be used to verify minimum required airflow is attained prior to each day's use. The
TR-600 compensates for changes in air density, which is affected by elevation and air temperature.
During use, if you suspect the TR-600 is not delivering a minimum of 6 cfm (170 lpm), exit the
contaminated area, see your supervisor, and recheck the airflow with the 3M™ Airflow Indicator
TR-971. The airflow is checked with your current filter installed.
• Ensure float ball in the TR-971 moves freely in the tube and the gasket at the bottom end of the
tube is in place.
• Insert the TR-971 into the outlet of the TR-600 motor/blower unit. If the breathing tube is in
place, it must be removed to allow the airflow indictor to be inserted (Fig. 15-1).
• Turn the motor/blower unit on by pressing and holding the power button for 1 second. Run the
3M™ Versaflo™ Powered Air Purifying Respirator TR-600 for up to 1 minute to allow the
airflow to stabilize.
• With the airflow indicator in a vertical position, ensure that the bottom of the floating ball rests
at, or above, the minimum flow mark for the 'letter' representing your 'Zone' (Fig. 15-2). Airflow
indicator must be in the vertical position for an accurate reading.
• The airflow indicator is graduated into different 'zones' based on air density, which is based
on elevation and ambient temperature. To determine your zone, determine the elevation
and temperature for the environment where you are conducting the airflow check. See your
supervisor if you are not certain of these values. Find the zone where your elevation and
temperature intersect on the chart supplied with the airflow indicator (Chart 1). For additional
guidance on conducting an airflow check, consult 3M Technical Data Bulletin #221 Conducting
Airflow Check on the TR-600 or contact 3M Technical Service.
Fig. 14 3M™ Versaflo™ Powered Air Purifying
Respirator TR-600 with filter/cartridge label
visible
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