Installation; Requirements - Endress+Hauser Proservo NMS81 Technical Information
Tank gauging
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Also See for Proservo NMS81:
- Functional safety manual (32 pages) ,
- Brief operating instructions (72 pages)
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Requirements
30
Installation
Type of tanks
Depending on the type of tank and application, different installation procedures are recommended
for NMS8x.
Type of tanks
Fixed roof tank
Floating roof tank
Covered floating roof tank
Pressurized or bullet tank
Tank with agitator or heavy
turbulence
• A stilling well is required in a floating roof tank and a covered floating roof tank.
• Guide wires cannot be installed in a floating roof tank. When the measuring wire is exposed
to free space, it may break due to an external shock.
• Installing guide wires is not allowed in pressurized tanks because the wires would prevent
closing the valve for replacing the wire, wire drum, or displacer. NMS8x installation position
is important for applications without the guide wire system in order to prevent the measuring
wire from being broken (refer to Operating Instructions for details ).
Without guide system
With stilling well
Proservo NMS81
With guide wires
Endress+Hauser
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