The Wireless Field Interface (WFI) adds a wireless capability to the
existing servo or the radar gauge by supporting the GPU protocol which
is compliant with the ISA100 standards. It consists of multiple electronic
boards, an antenna cable, and an antenna. The WFI communicates
with the servo or the radar gauge through the Honeywell Enraf field bus
Bi-Phase Mark, processes the data, and forwards the information
wirelessly to the Wireless Device Manager (WDM) which is compliant
with the ISA100 standards. The complete network including the WFI is
based on the ISA100 wireless field device network.
Also, there are different ways of communication which are as follows:
The protocol tunnel (Engauge and Entis)
Function blocks (Experion integration)
FIGURE 1-1Wireless Field Interface (WFI)
Part No.: Rev01 Wireless Field Interface
Installation Manual1 - 1
General - Target Audience for this Manual
1.2 Target Audience for this Manual
This manual is intended for engineers and technicians, who are
assigned to install, commission, and service the WFI. Also, all
Honeywell Enraf customers who use wireless.
Wireless Field InterfacePart No.: Rev01
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Safety - Safety Conventions
CHAPTER 2 SAFETY
2.1 Safety Conventions
2.1.1 Warnings
The following warning mark is used within this document to urge
attention in order to prevent personal injuries or dangerous situations, further described in this document.
SymbolDescriptionRemark
General warningWill always be explained by text.
2.1.2 Cautions
The following caution mark is used within this document to urge
attention in order to prevent damages to the equipment, further
described in this document.
SymbolDescription
General caution sign
Electrostatic Discharge (ESD) sensitive device
Part No.: Rev01 Wireless Field Interface
Installation Manual2 - 1
Safety - Safety Instructions for the WFI
2.2 Safety Instructions for the WFI
The WFI device is used for converting the wired communication of
various Honeywell Enraf equipment into a wireless transmission.
FIGURE 2-1Wireless Field Interface (WFI)
2.2.1 General
WARNING! You must strictly follow the safety instructions
mentioned in this manual and the safety instructions
shipped with the WFI device for installation, commissioning, operation, and maintenance, for the safe
operation of the WFI device.
Wireless Field InterfacePart No.: Rev01
2 - 2Installation Manual
Safety - Safety Instructions for the WFI
The WFI may be located in explosion safety areas as follows:
USA (FM) and Canada (CSA)Canada (CSA)
Safety
level
Class 1,
Division 1
Class 1,
Division 2
Remarks
WARNING!
Do NOT open
when an
explosive
atmosphere
may be
present.
CAUTION!
Seal conduit
within 18
inches.
WARNING!
Do NOT open
when an
explosive
atmosphere
may be
present.
CAUTION!
Seal conduit
within 18
inches.
Safety
level
Zone 1WARNING!
Zone 2WARNING!
Remarks
Do NOT open
when an
explosive
atmosphere
may be
present.
CAUTION!
Seal conduit
within 18
inches.
Do NOT open
when an
explosive
atmosphere
may be
present.
CAUTION!
Seal conduit
within 18
inches.
Rest of the World
(ATEX / IECEx)
Safety
level
Zone 1WARNING!
Zone 2WARNING!
Remarks
Do NOT open
when an
explosive
atmosphere
may be
present.
Do NOT open
when an
explosive
atmosphere
may be
present.
Safe Area-Safe
Zone
2.2.1.1 EC declaration of conformity (for EU)
Refer to the EC declaration of conformity and the ATEX certificate(s),
shipped with the WFI device for EC declarations.
2.2.1.2 Control Drawings for FM and CSA
Refer to the control drawings shipped with the WFI for FM and CSA.
2.2.1.3 Users
The mechanical and electrical installation must be performed only by
trained people with the knowledge of the requirements for installation of
explosion proof equipment in hazardous areas.
The entire installation procedure for the WFI must be implemented in
accordance with national, local, and company regulations.
The entire electrical installation may be performed in accordance with
the national requirements for electrical equipment to be installed in
hazardous areas.
-Safe
Zone
-
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Installation Manual2 - 3
Safety - Safety Instructions for the WFI
NOTE: See EN IEC 60079-14 document for more infor-
mation.
2.2.1.4 Additional information
For additional information about Honeywell Enraf solutions, see the
back cover of this manual to contact Honeywell Enraf or its
representative.
2.2.1.5 Environmental Conditions
The environmental conditions regarding the permissible operating
temperature for the WFI is -40 °C to +65 °C (-40 °F to +149 °F). The
relative humidity is RH 5 to 95%, non-condensing.
2.2.2 Personal Safety
WARNING! In hazardous areas, it is compulsory to use personal
protection and safety gear.
Safety can be achieved by using the following
equipment:
1. Safety helmet
2. Fire-resistive overall
3. Safety shoes
4. Safety glasses
5. Working gloves
6. LEL-meter
Pay attention to the kind of product involved. If there
is any danger to your health, wear a gas mask and
take all the necessary precautions.
WARNING! Take appropriate precautions when chemical or toxic
2.2.2.1 General
2.2.2.1.1 Repairs and Maintenance
WARNING! Any repairs or parts replacements must be
2.2.2.1.2 Opening of the Device
product vapors are present (compressed air,
chemical protection suit, detection equipment).
performed by the manufacturer or its appointed
repair agent.
WARNING! It is forbidden to open the WFI device within an
explosive hazardous environment in power, unless
otherwise stated on the safety label.
WARNING! Treat the flange surface of the cover and the housing
with care.
Keep the flange surface free of dirt.
The O-ring must be present and undamaged.
Wireless Field InterfacePart No.: Rev01
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Safety - Safety Instructions for the WFI
2.2.2.1.3 Tools
WARNING! Use non-sparking tools and explosion-proof testers.
2.2.2.1.4 Working Environment
WARNING! Avoid generation of static electricity. Make sure the
2.2.2.1.5 Required Skills
WARNING! The technician must have technical skills to be able
2.2.2.2 Commissioning
Use suitable explosion-proof tools (for example,
testing devices).
explosive gas mixtures are not available in the
working area.
to safely install the WFI device. The technician also
must be trained to work in accordance with the
national requirements for electrical equipment in
hazardous areas.
The commissioning of the device is conducted by qualified engineers
trained by Honeywell Enraf and with the knowledge of the (local and
national) requirements for electrical equipment in (potentially) explosive
atmospheres.
2.2.2.3 Maintenance and troubleshooting
If the WFI device does not function accurately, only a qualified service
engineer, trained by Honeywell Enraf and with the knowledge of safety
regulations for working in (potentially) explosive atmospheres are
allowed to repair the WFI device.
2.2.2.4 Grounding
Make sure the housing of the device is properly connected to ground
reference. See FIGURE 3-5.
Make sure the electrical resistance of the ground connections is below
the maximum prescribed by local requirements.
2.2.3 Electrical
2.2.3.1 Safety Standards
The entire electrical installation must be in accordance with the Inter-
national Standard EN IEC 60079-14 for electrical equipment in
hazardous areas.
The stopping plugs, cable glands, and reducers must be installed in
accordance with the appropriate IP requirements.
Use the bolts that are property class A2-70 or better captured types
and are not user replaceable. Contact Honeywell Enraf if you need to
replace the bolts.
Use suitable flameproof (Ex d) compound cable glands or conduit
seals.
Part No.: Rev01 Wireless Field Interface
Installation Manual2 - 5
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