Flowserve NRS1-9 User Manual
Page 7
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Important Notes
Safety Note
Installation must only be performed by qualified staff.
Qualified staff are those persons who – through adequate training in electrical
engineering, the use and application of safety equipment in accordance with regula-
tions concerning electrical safety systems, and first aid & accident prevention –
have achieved a recognised level of competence appropriate to the installation and
commissioning of this critical safety device.
The terminal strip of the NRS 1-9 is live during operation. This presents
the danger of electric shock. Cut off power supply before fixing or
removing the housing cover.
Danger
Usage for the intended purpose
Water level controllers and water level limiters serve as safety equipment in
installations requiring official approval. Use switching controller/limiter NRS 1-9 only
for monitoring and indicating liquid levels.