Proteus ATEX Zone 1, Original User Instruction Manual

Page: 46 / 72

46
Version A Mini-Cam Proteus ExZ1
Pressurising Components
Prior to performing an inspection, YOU
must
pressurise all components with
pressure-encapsulated housings and to check the pressure, so that you ensure the
tightness of all components. For the pressure test it is important that all system
components are assembled, the camera cable is connected to the crawler and the
control panel is in operation.
Only nitrogen is permitted as a pressurisation gas.
Checking and adjusting the Internal Pressure
If pressure has been removed completely from a system component, it is necessary
to re-pressurise that system component with nitrogen (see page 48, page 49,
and page 50) and to completely remove the pressure again afterwards. This
procedure of pressurising with nitrogen must be repeated five times in total. This
is to ensure that no explosive mixture in a flammable concentration will be present
inside the equipment.
DO NOT over pressurise the components, this could lead to
damage and non-compliance.
Only pressurise components in a NON-Hazardous Environment.
You may need to use the OVERRIDE Key to maintain power ON while
pressurising, see Power Control page 30.
Illustrated instructions on how to pressurise Proteus ExZ1 components can be found
as follows:
• CRP140-ExZ1 Crawler page 48
• CAM026L-ExZ1 Pan, Rotate & Laser Camera page 49
• CAM028L-ExZ1 Pan, Rotate, Zoom & Laser Camera page 50