Vaisala PR-23 Series - Page 103

Model Description
C Compact type for pipeline installations
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
‑H Sanitary clamp, 2.5 in, insertion length 14 mm
1)
‑E Varinlineâ in‑line access unit clamp 2 in (DN 50/40)
‑N Sanitary clamp, 2.5 in, insertion length 14 mm, high pressure, 40 bar at 20 °C
Sensor wetted parts material
‑SS AISI 316 L
‑HC Alloy C276
2)
Electrical classification
‑GP General purpose
‑AX ATEX and IECEx certified Ex II 3G, Ex nA IIC T4 Gc (up to zone 2) (T
amb
−20 … +65 °C)
‑FM FM certified Class I, Div.2, Groups A, B, C, D T6 (T
amb
−20 … +45 °C)
‑CS CSA certified Class I, Div.2, Groups A, B, C, D, T4 (T
amb
−20 … +45 °C)
‑IA ATEX and IECEx certified Ex II 1G, Ex ia IIC T4 Ga (up to zone 0) (T
amb
−20 … +65 °C)
3)
‑IF FM certified to US and Canadian standards Class I, Div.1, Groups A, B, C, D T4 (T
amb
−20 … +45 °C)
3)
‑CX NEPSI Certified for use in Ex nA IIC T4 Gc
‑CI NEPSI Certified for use in Ex ia IIC T4 Ga
Sensor housing
‑AA Anodized Aluminum
‑SC Stainless steel AISI 316
EHEDG option
‑EH EHEDG Type EL Class I Certified Model
4)
Polishing option
Chapter 10 – Sensor specifications
101