Flowserve NRG 16-40 - Manual (Page 4)

4
Important Notes
Danger
When loosening the electrode steam or hot water might escape.
This presents the danger of severe scalding. It is therefore essential not to remove
the electrode unless the boiler pressure is verified to be zero.
The electrode is hot during operation. This presents the danger of severe burns to hands
and arms. Installation and maintenance work should only be carried out when the
system is cold.
If the internal ceramic insulation breaks, hot steam can escape through the lateral vent
hole on the electrode body. This presents the risk of severe scalding. Do not stay near
the electrode during operation.
Usage for the intended purpose
Use level electrodes type NRG 6-40, NRG 7-40, NRG 9-40 and NRG -40 in conjunction with level
switch NRS -40 or NRS -40. only as low-water level limiters (low-level alarms).
Safety note
The equipment must only be installed and commissioned by qualified staff.
Maintenance and service work must only be performed by adequately trained persons who have
a recognized level of competence.
PED (Pressure Equipment Directive)
The equipment fulfills the requirements of the Pressure Equipment Directive (PED) 97/3/EC.
Applicable in fluids of group and . With CE marking (apart from equipment according to section 3.3).
Attention
The name plate indicates the technical specification of the equipment.
Do not commission or operate equipment without a name plate.
ATEX (Atmosphère Explosible)
According to the European Directive 94/9/EC the equipment must not be used in explosion-risk areas.