M212438EN-C

User Guide

Sanitary Process Refractometer

PR-43-AC/AP

PUBLISHED BY

Vaisala Oyj

Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland

P.O. Box 26, FI-00421 Helsinki, Finland

+358 9 8949 1

photocopying), nor may its contents be

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portions of multilingual documents are

based on the original English versions. In

ambiguous cases, the English versions are

applicable, not the translations.

The contents of this document are subject

This document does not create any legally

binding obligations for Vaisala towards

customers or end users. All legally binding

obligations and agreements are included

exclusively in the applicable supply

contract or the General Conditions of Sale

and General Conditions of Service of

Vaisala.

This product contains software developed

by Vaisala or third parties. Use of the

Table of contents

1. About this document.....................................................................................5

1.1 Version information.......................................................................................... 5

1.2 Related manuals................................................................................................5

1.3 Documentation conventions........................................................................... 5

1.4 Trademarks........................................................................................................ 6

2. Product overview............................................................................................ 7

2.1 Vaisala Sanitary Process Refractometers PR‑43‑AC and PR‑43‑AP...........7

2.2 Safety..................................................................................................................7

3. Installation..........................................................................................................9

4.1 Prism coating................................................................................................... 16

4.2 Prism wash....................................................................................................... 16

4.2.1 Recommended wash pressures and times............................................17

4.2.2 Prism wash systems................................................................................. 18

4.2.3 Prism wash nozzles................................................................................. 22

5. Technical data................................................................................................ 25

5.1 Compatibility...................................................................................................25

5.2 Refractometer rangeability........................................................................... 25

5.3 Sanitary process refractometer PR-43-AC..................................................25

5.3.1 PR-43-AC model code............................................................................26

5.4 Sanitary process refractometer PR-43-AP................................................. 46

5.4.1 PR-43-AP model code............................................................................47

5.4.2 PR-43-AP mounting hardware model code........................................ 49

5.4.3 PR-43-AP specifications........................................................................ 50

5.4.4 PR-43-AP parts lists................................................................................52

5.4.5 PR-43-AP mounting specifics................................................................55

5.4.6 Mounting specifics for EHEDG certified PR-43-AP configuration.... 58

5.4.7 3-A Sanitary Standard compliance....................................................... 59

Appendix A:

Recycling........................................................................................................... 65

List of figures

Figure 1 Refractometer models..................................................................................... 7

Figure 2 PR-43-AC and PR-43-AP mounting guide.................................................11

Figure 3 The M12 connector........................................................................................... 12

Figure 4 Connecting refractometer cable to refractometer................................. 13

Figure 5 Wiring with analogue output only.............................................................. 13

Figure 6 Wiring options with both analogue and digital outputs...................... 14

Figure 7 Wiring options with both analogue and digital outputs

Figure 8 Connections in M12 and RJ-45 connectors...............................................15

Figure 9 Prism wash system for steam.......................................................................19

Figure 10 Wiring for prism wash system for steam................................................. 20

Figure 20 Flow cell AFC-HSS-H10 for pipe diameter 25 mm (1 in)

Figure 22 Flow cell AFC-HSS-H20 for pipe diameter 50 mm (2 in)

Figure 23 Flow cell AFC-HSS- with wash nozzle connection (-NC)

Figure 28 Flush mounted refractometer PR-43-AP-T10-L00................................47

Figure 29 Refractometer cover assembly....................................................................52

Figure 30 PR-43-AP assembly....................................................................................... 54

List of tables

Table 3 Wash medium parameters for integral wash nozzles in PR-43-AP......17

Table 4 Wash medium parameters for flowcell wash nozzle AFC.......................17

Table 5 Flowcell -H10 or -H15........................................................................................23

Table 6 Flowcell -H20 or -H25......................................................................................23

Table 7 Flowcell -H30......................................................................................................23

Table 8 Flowcell -H40..................................................................................................... 23

Table 9 Prism wash nozzle selection.......................................................................... 24

Table 10 Sanitary compact refractometer for pipelines.......................................... 27

Table 11 Mounting hardware without wash nozzles................................................ 28

Table 12 EHEDG certified mounting hardware.......................................................... 28

Table 13 Mounting hardware with wash nozzles.......................................................29

Table 21 Mounting materials...........................................................................................45

and vessels..........................................................................................................47

Table 23 SANITARY PROBE REFRACTOMETER with prism wash

for large pipelines and vessels...................................................................... 49

Table 24 Mounting hardware for PR-43-AP refractometer.................................... 50

Table 25 PR-43-AP specifications.................................................................................50

Table 26 Refractometer cover assembly parts list.................................................... 52

Table 27 PR-43-AP assembly parts list........................................................................54

Table 28 Verification results display..............................................................................62

1. About this document

1.1 Version information

M212438EN-C April 2020 Manual updated to new format, template, and document

code. Minor changes to content.

IM‑EN‑PR43ACAP

2.00

September

2019

Changed K-Patents to Vaisala.

IM‑EN‑PR43ACAP

1.12

June 2018 IP rating updated.

1.2 Related manuals

Table 2 Related manuals

2. Product overview

2.1 Vaisala Sanitary Process Refractometers

Figure 6 Wiring options with both analogue and digital outputs

The following figure shows the wiring options when both analogue and digital outputs are

used, with RJ45 ethernet connector.

• White: +24DC

• Brown: GND

mA output cable:

• White: mA+

• Brown: mA-

4. Prism wash

Prism wash requires a system for wash control and diagnostics. This can be achieved with

Multichannel user interface (MI) with a relay module.

4.1 Prism coating

Deposit build-up on the prism surface disturbs the measurement. Anabnormally high

cases it helps to also insulate the clamp connector.

In case of a coating problem, the preferred solution is to try to increase the flow velocity, for

example, by installing a pipe portion with smaller diameter.

Installing a wash nozzle can be considered, if increasing the velocity does not provide a

solution. For more information, see Prism wash (page 16).

4.2

 Prism wash

Three alternative wash media can be used for prism wash:

• Steam

• Water

4.2.1 Recommended wash pressures and times

4.2.2 Prism wash systems