Panametrics HydroProII, User Manual

Page: 23 / 104

HygroPro
II
User's Manual 11
Chapter 1. Installation
1.4.2.1 Applicable Standards and Directives
When the HygroPro
II
is installed in hazardous areas with potentially explosive atmospheres, it complies with the ATEX
2014/34/EU equipment directive, the EU standards listed in Table 3 below, and the North American FM/CSA and IEC
standards listed in Table 4 below.
1.4.2.2 Compliance Requirements
The HygroPro
II
installation must comply with EN 60079-14 standard in Europe and with the National Electrical Code
(ANSI/NFPA 70) or part one of the Canadian Electrical Code (C22.1), as applicable, in North America. In other regions,
additional local codes may also apply.
1.4.2.3 Electrical Connections
The HygroPro
II
transmitter is certified intrinsically safe for use in Zone 0. However, the external power must be
provided by one of the following methods:
• an isolated, intrinsically safe, 24 VDC power supply mounted in the safe area
• an isolated Zener barrier mounted in the safe area and installed between a standard 24 VDC power supply and
the HygroPro
II
Refer to Figure 12 on the next page for a typical hazardous (classified) area HygroPro
II
wiring diagram. This
installation uses an MTL706 Zener barrier, in accordance with the second option listed above.
Table 3: European Union (EU) Standards
Title Number Date
Electrical apparatus for explosive gas atmospheres: Part
0: General Requirements Equipment
EN/IEC 60079-0 2018
Explosive atmospheres: Part 11: Equipment Protection by
intrinsic safety “i”
EN/IEC 60079-11 2012
Degrees of Protection Provided by Enclosures (IP Code) EN/IEC 60529 2013
Table 4: North American Standards
Title Number Date
Electrical Equipment for Use in Hazardous
(Classified) Locations General Requirements Class No. 3600 2021
Intrinsically Safe Apparatus and Associated
Apparatus for use in Class I, II, & III, Division 1, and
Class I, Zone 0 & 1 Hazardous (Classified) Locations Class No. 3610 2021
Electrical and Electronic Test, Measuring and Process
Control Equipment
Class No. 3810 2021
Non-incendive Electrical Equipment for Use in Class I,
Division 2, Hazardous Locations.
CSA-C22.2 No. 213 R2013
Safety requirements for electrical equipment for
measurement, control and laboratory use – Part 1:
General requirements (Adopted IEC 61010-1:2001, MOD)
(Tri-National standard, with UL 61010-1 and ISA 82.02.01)
CSA-C22.2/UL No.
61010-1
2012
Degrees of Protection Provided by Enclosures (IP Code) ANSI/IEC 60529 2004
Degrees of Protection Provided by Enclosures (IP Code) CSA-C22.2 No. 60529 R2016