Iso-Tech IDM 91E Manuel D'instructions page 19

MAINTENANCE
To keep the instrument clean, wipe the case with a damp cloth and detergent, do not use abrasives or solvents.
Any adjustment, maintenance and repair of opened instrument with voltage present shall be avoided as far as pos-
sible and, if inevitable, shall be carried out by a skilled person who is aware of the hazard involved.
Whenever it is likely that the protection has been impaired, the instrument shall be made inoperative and be secured
against any unintended operation.
The protection is likely to be impaired if, for example, the apparatus:
— shows visible damage,
— fails to perform the intended measurements,
— has been subjected to prolonged storage under unfavorable conditions,
— has been subjected to severe transport stresses.
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CAUTION (refer to user instructions).
1
Double Square Symbol for Class II product.
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