ThermoFisher Scientific HERASAFE 2025, Operating Instructions Manual

Page: 52 / 76

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50161258 HERAsafe 2025i
Chapter 7
Response to Failure Messages
Failure messages are displayed on the display as outlined in the section Error messages at
page 40. If one of these messages is displayed, contact the Technical Service immediately.
To isolate the cause of the failure, the operating personnel must perform only the
following tests and measures:

Check to see if the exhaust air opening on top of the cabinet is blocked.

Ensure that the on-site exhaust air system is activated.

Close doors and windows in the laboratory to prevent drafts.

Switch off devices in the vicinity of the safety cabinet that cause air turbulence or
emit excessive heat.

Open flames in the sample chamber may impair airflow conditions.
Work Rules
The observance of work rules ensures a minimum of operational safety when handling the
safety cabinet.
Before starting an operation:

Take off jewelry.

Put on required personal protective gear, e.g. hand, face, or body protection.

Clean and disinfect sample chamber surfaces at regular intervals.
During an operation:

Place samples only within the defined work area of the workplate.

Do not place unnecessary items into the sample chamber.

Use only disinfected and cleaned accessories for the work process.

Do not cause air turbulence, by quick hand, arm or body movement in the sample
chamber or in front of the work opening.

Do not place accessories into the sample chamber that cause air turbulence or emit
excessive heat.

Do not block air circulation at the ventilation slots of the workplate.