CAS BioMAT 1, Руководство пользователя, Страница: 25 / 29

Re-circ HEPA Filter (Air returned to room) – 4.2
Two HEPA filters are located on the top of the main body of the cabinet separated by a spacer
section and held in place by four M8 filter bolts.
Warning
To remove filters, release bolts, lift module until filters and spacer section can be removed.
Slide one filter forward and out and dispose of as recommended by site regulations, then
remove second filter in same manner.
To replace, first ensure that all surfaces have been cleaned and are free from matter.
Remove new filters from their protective packing.
Inspect all exposed surfaces for signs of damage. Any damage should be reported to the
supplier immediately.
Slide filters and spacer carefully into position. Tighten filter bolts, ensuring filters and spacer
section are correctly positioned and gaskets are compressed to about half their original
thickness.
The filters and their gaskets should be tested for leaks by challenging with DOP or equivalent
aerosol and scanning the surfaces with the probe of a forward light scattering photometer.
Ensure the Safety Cabinet is isolated from the
mains supply prior to opening access panels.
IMPORTANT
Cabinet must be decontaminated prior to changing any HEPA filters, see section 2.6
Only replace or examine filters if authorised to do so by the Safety Officer or the person in
charge of the laboratory. To remove any filters wear disposable gloves, an apron, overalls
and appropriate face covering, especially eye protection.