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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
Replace the retaining ring and screw it up securely. Do not over tighten the ring.
The labelled portion of the filter and the louver protrude through the ring.
Ensure that the rubber seals in the filter ports of the power unit are present, in good condition and seated flat at the bottom of the threaded section.
Screw the holder(s) & filter(s) into the Din 40 ports of the power unit, hand tight only. Do not over tighten.
Filter removal
The outside surfaces of the power unit, holder and the filter(s) must be decontaminated before unscrewing the retaining ring(s).
The power unit should be positioned so that the contaminated filters are facing downward, in order that any trapped material released by
unscrewing the filter retainer does not fall into the filter holder.
Unscrew retaining ring of the holder, remove contaminated filter.
FITTA COMBINATION FILTER
WARNING FITTED TO CARTRIDGE HOLDER
Care should be taken when handling filters.
Do not touch the filter medium.
Do not use filters with damaged filter medium.
Do not use filters after their expiry date.
Do not use filters that are not sealed in their bag.
Din 40 Gas/Combination Gas/Particulate Canisters
(for Magnum 8500 power unit only)
The following filters are available for use with the Magnum 8500 Unit and the Full facemask.
NB: 3 filters of the same type must be used.
If the centre Din 40 filter port is blanked off, the blank may be unscrewed with a coin.
Part number Description
M23ABEK2/P3 Organic/Inorganic/Acid/Ammonia Gases and Dusts (Solid & Liquids)
M23A2/P3 Organic Gases and Dusts (Solid & Liquids)
M23B2/P3 Inorganic and Dusts (Solid & Liquids)
M23AX/P3 Organic Gases (with boiling points below 65 ºC and Dusts (Solid & Liquids)
M23A2 * Organic Gases
M23K2 * Ammonia Gases
M23A2B2/P3 * Organic/Inorganic Gases + Dusts (Solid & Liquids)
* Discontinued
NB Pre-filters cannot be used with the above Din 40 filters.
Canister fitting /Removal See M23P3SL/6.
WARNING
Care should be taken when handling filters.
Do not touch the filter medium.
Do not use filters with damaged filter medium.
Do not use filters after their expiry date.
Do not use filters with no or damaged filter seal caps.
6. AIR FLOW INFORMATION AND WARNING DEVICES
MAGNUM 1000 POWER UNIT
The Power unit is designed to exceed the requirements of EN 146 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 (MMDD = 4Hr). Typical Battery Life with M23P2/4B compact battery when fully
charged and run with Magnum 1000 Power Unit and appropriate filter and head piece is 8 Hrs (this will depend on various factors such as
condition of the filter, age of the battery etc.).
Once the battery has been charged and the correctly selected filter has been fitted the airflow should be checked before use.
AIR FLOW TEST
Principle of operation
The Airflow indicator is designed to be situated in the centre of the filtered air stream and as the air stream passes over the indicator, it causes it
to rise proportionally.
Indicated Airflow then can be read by means of a graduated scale situated on the body of the indicator.
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