K-Patents PR-23 - Manual (Page 138)

130 PR-23 instruction manual
9.11 Intrinsically safe refractometers PR-23-...-IA
and PR-23-...-IF
Hazardous locations are places where a possibility of fire or explosion exists because
of flammable gases, vapors or fine dust.
Zone 0: An area in which an explosive gas-air mixture is continuously present
or present for long periods of time.
Zone 1: An area in which an explosive gas-air mixture is likely to occur in nor-
mal operation.
The K-Patents Intrinsically Safe Process Refractometer PR-23-...-IA/-IF can be used in
hazardous locations in Zone 0 and Zone 1 areas.
The PR-23-...-IA refractometers have been certified by VTT under the European ATEX
directive 94/9/EC for ATEX Ex II 1G / EEx ia IIC T4 Ga (T
amb
= -20 – + 65°C) and
under the IECEx scheme for Ex ia IIC T4 Ga (T
amb
= -20 – +65°C). The EC Type-
examination Certificate number is VTT 07 ATEX065X and the IECEx Certificate num-
ber is IECEx VTT 08.0004X. These certifications cover the following Ex standards:
EN 60079-0:2012 / IEC 60079-0:2011, EN 60079-11:2012 / IEC 60079-11:2011 and
EN 60079-26:2007 / IEC 60079-26:2006.
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
amb
= -20 – +45 °C) The cer-
tificate ID Number is 3036400. This certification covers the following US stan-
dards: 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
amb
= -20 – +45 °C). The certificate ID
Number is 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.
Note: Servicing of the intrinsically safe PR-23-...-IA/-IF refractometer is only allowed
for trained service personnel of K-Patents and its representatives. Servicing must be
done according to separate instructions defined by K-Patents and must be reported
to K-Patents.
9.11.1 Equipment
The K-Patents Intrinsically Safe Process Refractometer consists of: a modified refrac-
tometer sensor PR-23-...-IA/-IF, an Indicating transmitter STR with single sensor con-
nectivity, and IS Isolator and cabling between the refractometer sensor and the trans-
mitter (Figure 9.34).