Proservo NMS5
Hauser
97
11
Displacer and Measuring Wire
11.1
Shape, Diameter, and Material
11.1.1
Displacer
There are several types of displacer available for NMS5.
•
The standard type has cylindrical shape and a diameter of 50 mm. Diameters from 30 to 50 mm are optional.
•
Cylindrical shape is used for viscous liquids. It is also effective if the stilling well is not smooth on its interior
surface.
Displacer weight and volume depend on the application. Thin displacers are suited for level measurement,
thicker ones for bottom level, interface level, and density measurement.
A counterweight is optional for heavy turbulence (inquire).
Displacers of three different materials are provided.
•
The standard material is stainless steel SUS316.
•
Alloy C and PFA are optional for corrosive liquids.
•
Solid PFA, however, is not applied for flammable liquids.
The following size of displacer will be supplied, when you order custody transfer approval.
Note!
NMi (Netherlands).................
70mm
PTB (Germany).......................
110mm
11.1.2
Measuring Wire
•
The standard material of the measuring wire is stainless steel SUS316L.
•
Alloy C and PFA coated stainless steel SUS316 are for corrosive liquids.
The following specification of measuring will be supplied when ordering the custody transfer approval.
Note!
•
Select SUS316L (0.15mm) for NMi and PTB specifications.
•
Refer to the separate "Techenical Information TI00452G" for displacer selection information and Appendix
"14.3 Displacer" in this chapter.
11 Displacer and Measuring Wire