Vaisala K-PATENTS PR-23 Series, Instruction Manual, Page: 116 / 246

106 PR-23 instruction manual
9.6 Probe process refractometer PR-23-GP
Probe process refractometer PR-23-GP is a general industry model for measuring liq-
uid concentrations in various in-line applications, like chemicals, fibers, plastics, salts
and sodium components. It is typically installed in large pipes and vessels.
9.6.1 PR-23-GP sensor model code
MODEL AND DESCRIPTION MODEL
PR-23 = Sensor PR-23
Sensor model
-G = General -G
Sensor type
P = Probe type for tanks and large pipes P
Refractive Index range limits
-62 = n
D
1.320–1.530 (0–100 Brix) Spinel prism -62
-73 = n
D
1.320–1.530 (0–100 Brix) Sapphire prism -73
-74 = n
D
1.260–1.470, Sapphire prism -74
-82 = n
D
1.410–1.620, YAG prism -82
-92 = n
D
1.520–1.730, GGG prism -92
Process connection
-A = ANSI-flange 150 lbs, 3 inch, insertion length 130 mm -A
-D = DIN-flange 2656, PN25 DN80, insertion length 130 mm -D
-DA = DIN-flange 2656, PN25 DN100, insertion length 130 mm -DA
-J = JIS-flange 10k 80A, insertion length 130 mm -J
-L = Sandvik L clamp, 88 mm, insertion length 130 mm -L
-M = ANSI-flange 300 lbs, 3 inch, insertion length 130 mm -M
-O = ANSI-flange 150 lbs, 4 inch, insertion length 130 mm -L
-U = ANSI-flange 300 lbs, 4 inch, insertion length 130 mm -U
-JA = JIS-flange 10k 100A, insertion length 130 mm -JA
Sensor wetted parts material
SS = AISI 316 L SS
RS = Stainless steell AISI 304 L RS
HA = Alloy 20 HA
HC = Alloy C276 HC
HD = Alloy C22 HD
NI = Nickel 200/201 NI
TI = Titanium ASTM B348 GR 2 TI
XS = Duplex 2205 / SAF2205 XS
Electrical classification
-GP = General Purpose -GP
-AX = ATEX and IECEx certified Ex II 3 G, Ex nA IIC T4 Gc (up to Zone 2) (T
amb
-20 ... +65°C) -AX
-FM = FM certified Class I, Div. 2, Groups A, B, C, D, T6 (T
amb
-20 ... +45°C) -FM
-CS = CSA certified Class I, Div. 2, Groups A, B, C, D, T4 (T
amb
-20 ... +45°C) -CS
-IA = ATEX and IECEx certified Ex II 1 G, Ex ia IIC T4 Ga (up to Zone 0) (T
amb
-20 ... +65°C) (A) -IA
-IF = FM certified to US and Canadian standards Class I, Div.1, Groups A, B, C, D T4 (T
amb
-20 ... +45°C) (A) -IF
Sensor housing
AA = Anodized aluminium -AA
-SC = Stainless steel AISI 316 -SC
Prism wash
-SN = Integral steam nozzle -SN
-WN = Integral water nozzle -WN
-WP = Integral pressurized water nozzle -WP
-NC = Integral nozzle connection -NC
-YC = without nozzle connection -YC
Option
-VD = Vertical Borderline Image Detection (e.g. sugar vacuum pan) -VD
(A) Available with STR Indicating Transmitter and IS isolator only