Endress+Hauser Stamolys CA71CL, Operating Instructions Manual

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Safety instructions StamoLys CA 71 SI
4 Hauser
1 Safety instructions
1.1 Designated use
With 18% silicon is the second most frequent element of the earth crust. It occurs
chemically bonded as silicate or silicon dioxide in a variety of minerals. From these
minerals silicate or silicic acid is washed out in low quantities to waters.
There are no standard limits for drinking water since silicate is not known to be harmful
to health.
But in boiler feed water and boiler water, there may be only low silicate concentrations.
Under thermal charge or under high pressure insoluble silicon dioxide is formed. It
solidifies in boilers, heat exchangers and turbine blades and thus reduces the heat
exchanger’s efficiency or causes overheating.
The standard limit for boiler feed water is 0.02 ppm silicic acid (SiO
2
). For injection and
boiler water the standard limits are pressure dependent. For example, at an operational
pressure of 68 bar (986 psi), the concentration of silicic acid in boiler water must not
exceed 10 ppm.
The analyzer is a compact photometric analysis system.
It is designed for the almost continuous monitoring of the silicate content in ultrapure
water and boiler feed water.
In particular, the analyzer is intended for:
•
steam and condensate analysis
•
reversed osmosis
•
demineralisers.
Any other use than the one described here compromises the safety of persons and the
entire measuring system and is, therefore, not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
1.2 Installation, commissioning and operation
Please note the following items:
•
Installation, electrical connection, commissioning, operation and maintenance of the
measuring system must only be carried out by trained technical personnel.
The technical personnel must be authorised for the specified activities by the system
operator.
•
Technical personnel must have read and understood these Operating Instructions
and must adhere to them.
•
Before commissioning the entire measuring point, check all the connections for
correctness. Ensure that electrical cables and hose connections are not damaged.
•
Do not operate damaged products and secure them against unintentional
commissioning. Mark the damaged product as being defective.
•
Measuring point faults may only be rectified by authorised and specially trained
personnel.
•
If faults can not be rectified, the products must be taken out of service and secured
against unintentional commissioning.
•
Repairs not described in these Operating Instructions may only be carried out at the
manufacturer’s or by the Hauser service organisation.