Instruction manual
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1.3 Safety Instructions 
  The Alpha pH 550 Monitor should be installed and 
operated only by personnel familiar with the instrument 
and who are qualified for such work. 
  A defective pH Monitor must neither be installed nor put 
into service. 
  The Alpha pH 550 must only be operated under the 
specified operating conditions (see section 6). 
 The Alpha pH 550 must not be repaired by the 
customer. 
  No modifications to the Alpha pH 550 are allowed. The 
manufacturer/supplier accepts no responsibility for 
damage caused by unauthorized modifications. The risk 
is borne entirely by the user. 
1.4  Taking Out of Service / Correct Disposal of the Unit 
Taking out of Service 
  First disconnect the unit from the power supply and then undo all electrical 
connections. 
  Remove the unit from the wall. 
Correct Disposal of the Instrument 
When the Alpha pH 550 is permanently taken out of service, obey the local 
environmental regulations for correct disposal or send the instrument to your local 
distributor, they will take care of proper disposal. 










