Flowserve NRG 26-40 - Manual (Page 4)

4
Important Notes
Danger
When loosening the electrode live steam or hot water might escape.
This presents the danger of severe scalding. It is therefore essential not to dismantle
the electrode unless the boiler pressure is verified to be zero.
The electrode is hot during operation. This presents the risk 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 electrode NRG 26-40 only in conjunction with switching controller NRS 2-40 or level controller
NRR 2-40 for level indication in electrically conductive or non-conductive liquids.
Safety note
The equipment must only be installed and commissioned by qualified and adequately trained
personnel.
Maintenance and retrofitting must only by performed by entrusted personnel who – through adequate
training – have achieved a recognised level of competence.
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.
Explanatory Notes
Scope of supply
NRG 26-40
 Level electrode type NRG 26-40
 Joint ring (of stainless steel .430) D 27 x 32 to DIN 7603, bright annealed
 Terminating resistor 20
Ω
 Installation manual