Mounting Specifics For Ehedg-Certified Pr-23-Ap Configuration; 3-A Sanitary Standard Compliance; Figure 60 Flush Mounting Probe Refractometer Pr-23-Ap-Xx-Pss - Vaisala PR-23 Series User Manual

Chapter 10 – Sensor specifications
mm
[in]
Figure 60 Flush mounting probe refractometer PR‑23‑AP‑XX‑PSS
10.4.6 Mounting specifics for EHEDG‑certified PR‑23‑AP
configuration
Vaisala offers certain configurations which have been certified to fulfill the sanitary
requirements published by EHEDG (European Hygienic Engineering & Design Group)
organization. During this certification the hygienic characteristics of both the refractometer
and the process connection were evaluated against the applicable requirements.
To ensure EHEDG compliant installation, follow the mounting specifics provided on the
mounting drawing supplied by Vaisala with each refractometer sensor ordered with the ‑EH
option.
10.4.7 3‑A Sanitary Standard compliance
Ensure that the refractometer is not a source of contamination to the product due to
damaged or worn product contact surfaces. Misuse (for example, excessive prism wash time
or wash pressure) or mishandling may result in metal scratches or roughened surfaces. Such
surfaces may not stay clean in processing.
Vaisala offers a 3‑A Sanitary Standard Accepted repair and maintenance package in which
all wetted parts, prism, gaskets and dryer are replaced.
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