Pr-23-M/Ms Mounting Specifications; Saundersâ Body Refractometer Pr-23-W; Figure 81 Pr-23-M With ½ In G/Npt Process Connection - Vaisala PR-23 Series User Manual

PR-23 Series User Guide
10.8.7 PR‑23‑M/MS mounting specifications
Teflonâ body refractometer PR‑23‑M is connected to the process by a G ½ in female or a
½ in NPT process connection, see the figure below. PR‑23‑MS is connected to the process by
a ¼ ... 1 in G/NPT process connection.
CAUTION!
weight from pulling at the non-metallic piping. See the figure below for support
placement.
4.72
120.0
Note! Keep sensor
axle horizontal
Note!
Cable downwards
mm
[in]
Figure 81 PR‑23‑M with ½ in G/NPT process connection
10.9 Saunders body refractometer
PR‑23‑W
Saundersâ body refractometer PR‑23‑W is a heavy-duty instrument designed for
chemically aggressive liquids and ultra-pure fine chemicals in large-scale production and in
large pipelines. The materials and design of the sensor are similar to the Teflonâ body
refractometer PR‑23‑M, but the Saundersâ body makes it possible to fit this refractometer
into 50 mm, 80 mm or 100 mm (2 in, 3 in or 4 in) pipelines.
Saundersâ body material is graphite cast iron lined with 3 mm PFA (fluorinated ethylene
propylene) or ETFE (ethylene tetrafluoroethylene) fluoroplastic. The cast iron provides a
solid mechanical base and the PFA/ETFE lining ensures the chemical resistance.
154
Always install PR‑23‑M/MS with sensor support to prevent the sensor
7.11
180.7
1 2
Suppor sensor here
1.24
31.5
3 4
G1/2" or
NPT 1/2"
Grounding
screw
G1/2" or
NPT 1/2"
4
IM-EN-PR23-E