Vaisala PR-23 Series - Sanitary probe refractometer PR-23-AP

Vaisala oers a 3‑A Sanitary Standard Accepted repair and maintenance package in which
all wetted parts, prism, gaskets and dryer are replaced.
This repair service can be completed only by a 3‑A authorized service center (Vaisala
factory or regional headquarters).
10.4 Sanitary probe refractometer
PR‑23‑AP
Sanitary probe refractometer PR‑23‑AP provides an accurate online BRIX measurement in
cookers and tanks.
10.4.1
PR‑23‑AP model code
Table 21 Sanitary probe refractometer for large pipelines and vessels
Model Description
PR‑23 Sensor
Sensor model
A 3‑A approved
Sensor type
P Probe type for tanks and large pipes
Refractive index range limits
‑62 R.I. 1.320–1.530 n
D
(0 … 100 Brix) spinel prism
‑73 R.I. 1.320–1.530 n
D
(0 … 100 Brix) sapphire prism
‑74 R.I. 1.260–1.470 n
D
sapphire prism
Process connection
‑T
Sanitary clamp, 2.5 in, insertion length 170 mm
1)
‑N Sanitary clamp, 2.5 in, insertion length 14 mm, high pressure, 40 bar at 20 °C
1)
‑R
Sanitary clamp, 4 in, insertion length 170 mm
1)
‑S
Sanitary clamp, 4 in insertion length 63 mm
1)
‑P
MT4 DN 25/1T APV Tank bottom flange, flush mounted
2)
‑B
MT4 DN25/1T APV Tank bottom flange, insertion length 170 mm
3)
‑V Sanitary clamp, 2.5 in, insertion length 170 mm
Chapter 10 – Sensor specifications
113