Vaisala K-PATENTS PR-23 Manuel D'utilisation page 103

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Electrical classification
-GP = General purpose
-AX = ATEX and IECEx certified Ex II 3G, Ex nA IIC T4 Gc (up to zone 2) (T
-FM = FM certified Class I, Div.2, Groups A, B, C, D T6 (T
-CS = CSA certified Class I, Div.2, Groups A, B , C, D T4 (T
-IA = ATEX and IECEx certified Ex II 1G, Ex ia IIC T4 Ga (up to zone 0) (T
-IF = FM certified to US and Canadian standards Class I, Div.1, Groups A, B, C, D T4 (T
+45°C) (E)
Sensor housing
-AA = Anodized aluminium
-SC = Stainless steel AISI 316
Options
-EH = EHEDG Type EL Class I Certified Model (F)
(A) EHEDG and Sanitary 3-A certified
(B) Sanitary 3-A certified
(C) Design according to Sanitary 3-A
(D) Requires mount adaptor VFME-23-VSS or VFMF-23-VSS, design according to Sanitary 3-A
(E) Available with STR-Indicating transmitter and IS isolator only
(F) For connections -T, -N, -I, -R, -S, -H, -C
SANITARY PROBE REFRACTOMETER PR-23-AP with prism wash for large pipelines and vessels
Model and description
PR-23 = Sensor
Sensor model
-A = 3A approved
Sensor type
P = Probe type for tank and large pipeline installation
Refractive Index range limits
-62 = R.I. 1.320–1-530 n (0-100 Brix) Spinel prism
D
-73 = R.I. 1.320–1.530 n (0-100 Brix) Sapphire prism
D
-74 = R.I. 1.260–1.470 n Sapphire prism
D
Process connection
-R = Sanitary 3A-clamp, 4 inch, insertion lenght 170 mm
Sensor wetted parts material
SS = AISI 316 L
Electrical classification
-GP = General purpose
-FM = FM certified Class I, Div.2, Groups A, B, C, D T6 (T
-CS = CSA certified Class I, Div.2, Groups A, B, C, D T4 (T
PR-23 manuel d'utilisation
-20 ... +65°C)
amb
-20 ... +45°C)
amb
-20 ... +45°C)
amb
-20 ... +65°C) (E)
amb
amb
-20 ... +45°C
amb
-20 ... +45°C
amb
-GP
-AX
-FM
-IA
-20 ... -IF
-AA
-SC
-EH
Model
PR-23
-A
P
-62
-73
-74
-R
SS
-GP
-FM
-CS