Division:
56 I 77
Suitable cleaning agents
The base plate of the enclosure is usually made of ceramic. All materials are resistant to
conventional cleaning agents (see also appendix B: Chemical resistance for ceramics).
The acrylic parts, incl. the back wall, are to be cleaned with an aqueous or ethanol-containing
solution (up to 30%). Other solvents may cause turbidity and material damage.
A cleaning agent that cleans both acrylic and TRESPA
®
is available from Schülke & Mayr:
Buraton 10F as 5% solution or Perform 0.5% solution.
Commercially available window cleaner can also be used for acrylic. a1-envirosciences also
offers solvent-free cleaning cloths (DECONWIPE) as accessories.
Behaviour in case of malfunction
In the event of a malfunction, it is important to keep calm!
Be sure to keep your hands inside the ST1 safety weighing enclosure to
prevent contamination from entering the environment of the ST1 safety
weighing enclosure. Cleaning must be carried out in accordance with the
operator's work instructions according to the properties of the hazardous
substances used.
A malfunction is indicated by one or more of the following indications:
Failure of one or more fans
The display of the alarm unit shows "Airflow Fail"
The backlight of the alarm unit is red and a permanent alarm tone (more
than 1 minute without interruption) sounds
In these cases, proceed as follows:
1 Keep your hands inside the ST1 safety weighing enclosure.
2 Check if there is a power failure. If this is the case, proceed with point 4.
3 Check whether the air flow is disturbed at one or both sensors located on the left and
right under the arm bar (there may be an object in front of the sensor so that the air
cannot flow freely through the sensor). If so, remove the blockage. If the alarm goes off,
you can continue working. If this is not the case, proceed with point 4.
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