4
1 Preliminary note
1.1 Symbols used
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Instruction
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Reaction, result
[…] Designation of buttons, switches or indications
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Cross-reference
Important note
Non-compliance can result in malfunctions or interference�
2 Safety instructions
•
Please read the product description prior to installing the unit� Ensure that the
product is suitable for your application without any restrictions�
•
The unit conforms to the applicable regulations and EC directives�
•
Improper or non-intended use may lead to malfunctions of the unit or to unwan-
ted effects in your application�
•
That is why installation, electrical connection, set-up, operation and mainte-
nance of the unit must be carried out by qualified personnel authorised by the
plant operator�
•
In all applications test the compatibility of the product materials (see technical
data) with the media to be measured�
For the scope of validity cULus:
The device shall be supplied from an isolating transformer having a secondary
Listed fuse rated either
a) max 5 amps for voltages 0~20 Vrms (0~28�3 Vp) or
b) 100/Vp for voltages of 20~30 Vrms (28�3~42�4 Vp)�