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Safety Guidelines - wtw pH 330/SET Bedienungsanleitung

Ph/mv taschenmeßgerät ph-einstabmeßkette mit integriertem temperaturmeßfühler ph-einstabmeßkette halteclip mit integriertem temperaturmeßfühler
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Safety Guidelines

Please read these safety guidelines attenlively before the
instrument is put into operation!
This instrument has been built and tested acc. to the German safety regulations for
electronic test instruments IEC 1010 and has left our works in a condition
complying with all the requirements of technical safety.
The perfect functioning and operational safety of the instrument is only ensured if
the user observes the normal safety precautions as well as the specific safety
guidelines stated in the present instruction manual.
− Before connecting the plug-in power supply unit to the electricity supply
network, ensure that the operating voltage stated on the plug-in power supply
unit corresponds to the mains voltage (statement of the supply voltage range).
− The perfect functioning and operational safety of the instrument can only be
maintained under the climatic conditions specified in the "Technical data"
section of this instruction manual.
− When the instrument is moved from cold to warm surroundings, condensate
may occur and interfere with the functioning of the instrument. In such a case,
the user should wait until the temperature of the instrument has adapted to the
ambient temperature before using the instrument again.
− Opening of the instrument, adjustment, maintenance or repair must only be
carried out by a suitably qualified specialist authorized by us.
− If there is reason to assume that the instrument can no longer be employed
without a risk, it must be set aside and appropriately marked to prevent further
use.
− The safety of the user may be endangered, e. g. if the instrument
shows visible damage,
no longer operates as specified,
has been stored over a longer period under unsuitable conditions,
has been subjected to difficult conditions during transport.
− If in doubt, the instrument should as a rule be sent back to the manufacturer -
"Wissenschaftlich-Technische-Werkstätten GmbH" for repair or maintenance.
pH 330/SET
pH 340/SET
3

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