Intrinsically Safe Refractometers Pr-23; Intrinsically Safe Refractometer Equipment - Vaisala PR-23 Series User Manual

10.10 Intrinsically safe refractometers
PR‑23‑...‑IA, PR‑23‑...‑IF and
PR‑23‑...‑CI
Hazardous locations are places where a possibility of fire or explosion exists because of
flammable gases, vapors or fine dust.
Zone0: An area in which an explosive gas-air mixture is continuously present or present for
long periods of time.
Zone1: An area in which an explosive gas-air mixture is likely to occur in normal operation.
Intrinsically Safe Process Refractometer PR‑23‑...‑IA/-IF/‑CI can be used in hazardous
locations in Zone 0 and Zone 1 areas.
The PR‑23‑...‑IA refractometers have been certified by Eurofins Expert Services Oy under the
European ATEX directive 2014/34/EU for ATEX Ex II 1G and Ex I M1 / Ex ia IIC T4 Ga and Ex
ia I Ma (T = −20 ... +65 °C) and under the IECEx scheme for Ex ia IIC T4 Ga and Ex ia I
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Ma (T = −20 ... +65 °C). The EU Type-examination Certificate number is EESF 19 ATEX
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028X and the IECEx Certificate number is IECEx EESF 19.0010X. These certifications cover
the following Ex standards: EN 60079-0:2012 / IEC 60079-0:2011 and EN 60079-11:2012 /
IEC 60079-11:2011.
The PR-23‑...‑IF refractometer is certified by FM under the United States standards for
IS/I/1/ABCD/T4 and I/0/AEx ia/IIC/T4 (T
3036400. This certification covers the following US standards: class 3600 1998, class
3610:2007, class 3810:2005, ANSI/ISA-12.00.01:1999, ANSI/ISA‑
12.02.01:2002, ANSI/ISA-82.02.01:2004, ANSI/NEMA 250:1991 and ANSI/IEC 60529:2004.
The PR‑23‑...‑IF refractometer is certified by FM under the Canadian standards for IS/I/1/
ABCD/T4 and I/0/Ex ia/IIC/T4 (T
3036400C. This certification covers the following Canadian standards: CSA C22.2 No.
94:1999, CSA C22.2 No. 142:2004, CSA C22.2 No. 157:2006, CSA C22.2 No. 60529:2005, CSA
C22.2 No. 61010.1-1:2004, CSA E60079-0:2007 and CSA E60079-11:2002.
The PR‑23-‑...‑CI refractometer is certified by Nepsi under Chinese standards under the
IECEx scheme for Ex ia IIC T4 Ga. The certificate number is GYJ19.1133X. This certification
covers the following Ex standards: GB 3836.1-2010, GB 3836.4-2010 and GB 3836.20-2010.
Only trained service personnel of Vaisala and its representatives are permitted to service
the intrinsically safe PR‑23‑...‑IA/‑IF/‑CI refractometer. Servicing must be performed
according to separate instructions defined by Vaisala and must be reported to Vaisala.
10.10.1 Intrinsically safe refractometer equipment
The intrinsically safe process refractometer consists of the following:
• A modified refractometer sensor PR‑23‑...‑IA/‑IF/‑CI
• An indicating transmitter STR with single sensor connectivity
= −20 ... +45 °C). The certificate ID Number is
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= −20 ... +45 °C). The certificate ID Number is
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Chapter 10 – Sensor specifications
161