Fisher IM Supplement: NEPSI Hazardous Area Approvals-Fisher 4320 Wireless Position Monitor Manuals & Guides
Instruction Manual Supplement
D103984X012
4320 Wireless Position Monitor
January 2018
NEPSI Hazardous Area Approvals
™
Fisher
This supplement provides NESPI Hazardous Area Approval information for the 4320 Wireless Position Monitor. Use this
in conjunction with information provided in the 4320 Wireless Position Monitor instruction manual (D103621X012
NEPSI—National Supervision and Inspection Centre for Explosion Protection and Safety of Instrumentation. NEPSI
approval is accepted in China.
Certain nameplates may carry more than one approval, and each approval may have unique installation/wiring
requirements and/or conditions of “safe use”. These special instructions for “safe use” are in addition to, and may
override, the standard installation procedures. Special instructions are listed by approval. Refer to the instruction
manual for all other information regarding the 4320 wireless position monitor.
Note
This information supplements the nameplate markings affixed to the product.
Always refer to the nameplate itself to identify the appropriate certification.
4320 Wireless Position Monitor
).
WARNING
Failure to follow these conditions of “safe use” could result in personal injury or property damage from fire or explosion,
and area re‐classification.
Standards Used for Certification
IEC 600790:2011 GB 3836.1-2010
IEC 6007911:2011 GB 3836.4-2010
IEC 6007926:2006 GB 3836.20-2010
Intrinsically Safe
Ex ia IIC T3/T4/T5 Ga (battery powered, without pneumatic output)
Ex ia IIC T4/T5/T6 Ga (battery powered, with pneumatic output)
Ex ia IIC T5 Ga (external powered, with or without pneumatic output)
www.Fisher.com
4320 Position Monitor
January 2018
Instruction Manual Supplement
D103984X012
Special Conditions for Safe Use
The suffix “X” placed after the certificate number indicates that this product is subject to special conditions for safe
use, that is:
1. To avoid an ignition hazard due to mechanical impact or friction when the product is installed in zone 0.
2. The apparatus can only be powered with one of power supply model GE57654X012 or GE57655X012.
3. The piezo valve shall be used for control non-flammable medium only.
4. The apparatus may be powered externally via External Power module GE61615X012.
Conditions for Safe Use
1. The relationship between temperature class and ambient temperature range is shown as following:
Battery Powered, versions without pneumatic output
Temperature Class T5 T4 T3
Ambient Temperature Range -40_C +40_C -40_C +75_C -40_C +85_C
Battery Powered, versions with pneumatic output
Temperature Class T5 T4 T3
Ambient Temperature Range -20_C +31_C -20_C +46_C -20_C +50_C
External Powered, version without pneumatic output: -40°C +80°C
External Powered, version with pneumatic output: -20°C
+50°C
2. Certified intrinsically safe handheld HART communication equipment can be connected to terminal WP1/WP2, its
parameters are shown as following:
Ui = 6 V, Ii = 5 mA, Pi = 30 mW, Ci = 2.5 nF, Li ≈ 0
Uo = 6 V, Io = 14 mA, Po = 84 mW, Co = 39 μF, Lo = 150 mH
2. 1 External power terminal (J5) parameters:
Ui=28 V, Ii=100 mA, Pi=1 W, Ci=78nF, Li=2.63 mH
3. The user shall not change the configuration in order to maintain/ensure the explosion protection performance of
this product. Any change may impair safety.
4. For installation, use and maintenance of this product, the end user should observe the instruction manual and the
following standards:
GB50257-1996: “Code for construction and acceptance of electric device for explosion atmospheres and fire
hazard electrical equipment installation engineering”.
GB3836.13-1997 “Electrical apparatus for explosive gas atmospheres Part 13: Repair and overhaul for apparatus
used in explosive gas atmospheres”.
GB3836.15-2000: “Electrical apparatus for explosive gas atmospheres Part 15: Electrical installation in hazardous
area (other than mines)”.
GB3836.16-2006: “Electrical apparatus for explosive gas atmospheres Part 16: Inspection and maintenance of
electrical installation (other than mines)”.
GB3836.18-2010: “Explosive atmospheres Part 18: Intrinsically safe system”.
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of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fisher is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions,
Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not
to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
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2
E 2014, 2018 Fisher Controls International LLC. All rights reserved.
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