Flowserve NRS1-40.1 - Manual (Page 4)

4
Important Notes
Usag e for the intended purpose
The control unit NRS 1-40.1 must only be used in conjunction with the associated sensors for monitoring
water level and temperature limits.
The equipment can be used as
■ Low -level limiter (min. water-level alarm) or as low-level limiting system in conjunction with level elec-
trode NRG 1x-40,
■ as high level alarm in conjunction with level electrode NRG 1x-41.1 and
■ as safety temperature controller/limiter in conjunction with temperature transmitter type TRV 5-40.
A combination of these functions is possible.
Any type of use differing from the usage described above must be considered as improper. The resulting
risk will have to be borne by the user alone. The manufacturer hereby expressly rejects any claims for any
damage resulting from improper usage.
Safety note
The equipment must only be installed and commissioned by qualified and competent staff. Retrofitting and
maintenance work must only be performed by qualified staff who - through adequate training - have
achieved a recognised level of competence.
The terminal strips of the control unit NRS 1-40.1 are live during operation.
This presents the risk of severe cases of electric shock!
Always cut off power supply to the equipment before mounting, removing or connecting
the terminal strips!
Classification pursuant to article 1 of the Pressure Equipment Direc tive (PED)
ATEX (Atmosphère Explosible)
According to the European Directive 94/ 9/EC the equipment must not be used in potentially explosive ar-
eas.
Category IV
Designation Safety accessory
CE marking CE 0525
Dange r