Warning And Safety Information - SCHOTT Instruments AVS 470 Mode D'emploi

Chapter1 The AVS470 Viscosity Measuring Unit
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Fig. 2 Viscometer for thermo-resistive measurements
1.4

Warning and safety information

For reasons of safety and functionality, the AVS 470 Viscosity Measuring Unit must only be opened by
authorized persons; this means, e.g., that work on electrical features must only be performed by qualified
staff.
In the case of unauthorized intervention in the AVS 470 Viscosity Measuring Unit as well as in the case of
negligent or deliberate damage, the warranty will become void.
The AVS 470 Viscosity Measuring Unit corresponds to Protection Class I. It was manufactured and
tested according to DIN VDE 61010, Part 1, Protective Measures Applicable to Electronic Measurement
Devices, and has left the factory in an impeccable condition as concerns safety technology. In order to
maintain this condition and to ensure a safe operation, the user should observe the notes and warnings
contained in the present operating instructions. Development and production are embedded within a
system meeting the requirements of the DIN EN ISO 9001 standard.
Prior to switching the device on it has to be ensured that the operating voltage applied to the AVS 470
Viscosity Measuring Unit matches the mains voltage. The operating voltage is indicated on the type plate.
The mains plug is to be plugged to a socket equipped with a protective contact. The protective effect
must not be eliminated by an extension cord without protective contact. Any interruption of the protective
lead inside or outside the AVS 470 Viscosity Measuring Unit, or any loosening of the protective-lead
connector may render the AVS 470 Viscosity Measuring Unit becoming hazardous. Intentional
interruptions are inadmissible.
It has to be ensured that no fuses other than those of the specified type and with the nominal current
strength are used. The use of mended fuses, or any short-circuiting of the fuse holder is inadmissible.
The built-in safety features must never be put out of operation.
If it has to be assumed that safe operation is no longer possible, the AVS 470 Viscosity Measuring Unit
has to be closed down and secured against inadvertent putting into operation.
Please switch the AVS 470 Viscosity Measuring Unit off, remove the mains cable from the socket,
remove the viscometry measuring unit, then call the service department of SCHOTT-GERÄTE.