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Warnings and precautions To ensure that your air flow indicator is maintained to give its optimum accuracy, the following precautions must be adopted: - • When not in use, the indicator must be stored in conditions to prevent physical damage. • When not in use, the indicator must be stored in conditions +5 to 35 degrees C @Rh<90%. • When not in use, the indicator must be stored away from direct sunlight. • The indicator must be kept clean and free from any contamination. • No adjustments, alterations or additional markings must be made. Method of use Prior to use • Visually inspect the Airflow indicator for any damage, contamination or distortion. • Ensure that the battery pack fitted is in good condition and fully charged. • Ensure a filter is fitted. • Position Vertically the Magnum unit for testing. (See diagram I). • Unlock the outlet ring (See diagram I) and remove Air hose (if attached) ensure that the outlet ring is in the UNLOCKED position at all times during the air flow test. • Switch unit on and allow to run for a minimum of 10secs. • Locate Airflow indicator in the outlet ring with the letters of the graduated scale in the vertical and facing the front of the unit. • Observe the airflow indicated from the graduated scale (See diagram II, III ). Ensure that when reading the scale your eye is level 024-001-750 MOD 8 11/05/07 Page 5 of 8 POWER UNITS Centurion Safety Products Ltd. Howlett Way, Thetford, Norfolk, IP24 1HZ, UK Tel. 0044 (0)1842 754266 Fax. 0044 (0)1842 765590 with the top of the outlet ring. NB It is possible that the air flow of the power unit when fitted with a fully charged battery pack and a new or servicable filter/pre-filter will be such that when the airflow indicator is located in the outlet ring (See diagram I) it will be expelled. This is not a fault condition but an indication of airflow above the designed limits of the indicator, it is an indication of sufficient airflow. If you have both replaced the filter and fully charged the battery and line B is still not visible the unit and battery should be returned to the supplier. AIRFLOW INDICATOR FITTING LineBfullyvisibleUnithassufficientairflowLineBobscured/notvisibleBatteryflatorblockedfilterTocheckforaflatbatteryreplacefilterandretestTocheckforblockedfilter,chargebatteryandretest. Once the battery has been charged and the filter has been fitted the airflow should be checked before each use and when a change or suspected change in airflow conditions is detected. MAGNUM 2000 POWER UNIT The Power unit is designed to exceed the requirements of EN 12941 in that it will provide a flow rate of at least 140 litres/min for at least 4 hours under all conditions, assuming a fully charged battery at start. (Minimum design duration = 4 hours). Duration of up to 8 hours can be typically achieved dependent on various conditions. The Power unit will give an audible and visual alarm when either the clogging of the filter causes the airflow to drop to the minimum design flowrate or when the battery voltage drops to a level below which it could not safely power the Power unit. When either of these conditions occur a frequently repeating audible bleep is emitted and in addition the yellow LED (Light emitting diode) on the top of the Power unit flashes if the filter is clogged or the red LED flashes if the battery is low. When either alarm condition occurs during use the wearer should leave the contaminated area immediately and replace the filter or recharge the battery accordingly. When first turning the unit on the alarm will beep to indicate the correct functioning of the alarm system. If the beep stops after a few seconds the airflow is sufficient to proceed with using the unit. MAGNUM 8500 POWER UNITS The Magnum 8500 units are activated using a rotary control knob, which should be set to the correct setting as indicated on the top of the unit. ( see diagram ) Counter clockwise setting for Headpieces/ Hoods/ Half Suits only. Centre setting for Power Off. Clock wise setting for the Full facemask only. Toplabel8500850085008500 When used with TH2 Headpieces, TH3 Hood or Half Suit ( Counter clockwise setting) The Power unit is designed to exceed the requirements of EN12941 in that it will provide a minimum design flow rate of at least 140 litres/min for theTH2 Headpieces or 120 litres/min for the TH3 Hood / Half Suit for at least 4 hours under all conditions, assuming a fully charged battery at start. (Minimum design duration = 4 hours). Typical battery duration depends on a number of factors but is usually around 8 Hrs. 024-001-750 MOD 8 11/05/07 Page 6 of 8 POWER UNITS Centurion Safety Products Ltd. Howlett Way, Thetford, Norfolk, IP24 1HZ, UK Tel. 0044 (0)1842 754266 Fax. 0044 (0)1842 765590 The Power unit will give an audible and visual alarm when either the clogging of the filter(s) causes the airflow to drop to the minimum design flow rate or when the battery voltage drops to a level below which it could not safely power the Power unit. ...

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