Flowserve PRS 9 - Manual (Page 6)

6
Important Notes
Safety note
Use the cycling timer PRS 9 only in combination with GESTRA level switches
NRS 2-4. 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
regulations 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.
Warning
The terminal strip of the PRS 9 is live during operation. This presents the
danger of electric shock. Cut off power supply before opening the
equipment and before inserting or removing the 19" slide-in unit.