PR‑23‑AC mounting specifications - PR-23 - PR-23-AC - PR-23-AP - PR-23-GC - PR-23-GP - PR-23-M - PR-23-RP - PR-23-SD - PR-23-W

PR-23 Series User Guide

Document code
IM-EN-PR23
Revision
H
Language
English
Product
PR-23
PR-23-AC
PR-23-AP
PR-23-GC
PR-23-GP
PR-23-M
PR-23-RP
PR-23-SD
PR-23-W
Document type
User guide

The sanitary process refractometer PR‑23‑AC is connected to the process by a 2.5 in sanitary clamp. The recommended mounting is in a pipe bend, with a vertical flow upwards before the sensor, and a horizontal pipe after. This mounting enables the following:

  1. Self-cleaning of prism due to the flow directed against its surface.
  2. Efficient drainage when the pipe is emptied.

For pipe diameters of 3 in or above, a ferrule is welded directly to the pipe wall (a ferrule, length 21.5 mm, is delivered with standard sensor delivery from Vaisala).

Figure 1. Mounting with sanitary ferrule pipe diameter 3 in (80 mm) or more

For smaller pipe diameters, flow cells are available from Vaisala, see Figure 2, Figure 3, Figure 4 and Figure 5, see also the tables in PR‑23‑AC mounting hardware model code.

The flow cells are exchangeable with standard 90° bend pieces.

Figure 2. Flow cell AFC‑HSS‑ H10 for pipe diameter 1 in (25 mm) and H15 for pipe diameter 1.5 in (40 mm)
Figure 3. Flow cell AFC‑HSS‑ with wash nozzle connection (‑NC) H10 for pipe diameter 1 in (25 mm) and H15 for pipe diameter 1.5 in (40 mm)