ThermoFisher Scientific HERASAFE 2025, Operating Instructions Manual

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Herasafe 2025 50161258
| 63
Maintenance
Inspection
The annual inspection comprises the following checks:

Electrical safety in accordance with national regulations.

Functional test of the device.

Checking all components for possible damage.

Checking the filter state.

Checking the airflow conditions.

Repeat test in accordance with applicable standard (EN 12469:2000, NSF/ANSI 49
or other.
Service
HEPA filters:
As the filter replacement is an interference with the safety system of the device, filters
must only be replaced by Thermo Electron LED or by adequately trained and authorized
service personnel.
UV Lamps
The UV lamps should be replaced after 8000 operating hours:
1. Remove cover from lamp housing. The cover is only pushed onto the lamp casing
and may be pulled off easily.
2. Rotate the lamp in the socket so that the lamp contacts can be removed from the
groove in the socket.
3. Insert the new lamp into the socket and rotate until the contacts engage.
4. Push the cover onto the lamp casing.
NOTE Perforated plate
The Perforated plate at the blanket of the sample chamber serves for the
protection of the downflow filter and prevents refluxing. While scanning the
filter surface for leak test the perforated plate must be built-in.
NOTE Filter change
Before filters are replaced the disinfection with formaldehyde is mandatory.
After the filter replacement, a repeat test must be performed in accordance
with applicable standard (EN 12469:2000 or other).
Before replacing the UV lamps disconnect the unit from the power supply.