Emc Conformity Standards; Pressure Equipment Directive (Ped) - YOKOGAWA DPharp EJX110A User Manual

Note 3. Installation
• In any safety barrier used output current
must be limited by a resistor 'R' such that
Io=Uo/R.
• The safety barrier must be IECEx certified.
• Input voltage of the safety barrier must be
less than 250 Vrms/Vdc.
• The instrument modification or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation and will void IECEx Intrinsically
safe and type n certification.
[Intrinsically Safe]
Hazardous Location
Group IIC, Zone 0
EJX Series Pressure
Transmitters
+
–
Supply
[type n]
Hazardous Location
Group IIC, Zone 2
EJX Series Pressure EJX Series Pressure
Transmitters Transmitters
+
Supply
–
b. IECEx Flameproof Type
Caution for IECEx flameproof type.
Note 1. Model EJX Series pressure transmitters
with optional code /SF2 or /SU2 are
applicable for use in hazardous locations:
• No. IECEx CSA 07.0008
• Applicable Standard: IEC60079-0:2004,
IEC60079-1:2003
• Flameproof for Zone 1, Ex d IIC T6...T4
• Enclosure: IP66 and IP67
• Maximum Process Temperature: 120°C (T4),
100°C (T5), 85°C (T6)
• Ambient Temperature: –50* to 75°C (T4),
–50* to 80°C (T5), –50* to 75°C (T6)
* –15°C when /HE is specified.
• Supply Voltage: 42 V dc max.
• Output Signal: 4 to 20 mA dc
Nonhazardous Location
General
IECEx certified
Purpose
Safety Barrier Equipment
+ + +
– – –
F0210-1.ai
Nonhazardous Location
IECEx Certified
Equipment [nL]
+
–
Not Use
Safety Barrier
F0210-2.ai
<2. Handling Cautions>
Note 2. Wiring
• In hazardous locations, the cable entry
devices shall be of a certified flameproof
type, suitable for the conditions of use and
correctly installed.
• Unused apertures shall be closed with
suitable flameproof certified blanking
elements.
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 5
MINUTES BEFORE OPENING.
• WARNING:
WHEN AMBIENT TEMPERATURE ≥ 65°C,
USE THE HEAT-RESISTING CABLES ≥
90°C.
• Take care not to generate mechanical
sparking when accessing to the instrument
and peripheral devices in a hazardous
location.
Note 4. Maintenance and Repair
• The instrument modification or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void IECEx
Certification.

2.10 EMC Conformity Standards

EN61326-1 Class A, Table2 (For use in industrial
locations)
EN61326-2-3
CAUTION
To meet EMC regulations, Yokogawa
recommends that customers run signal
wiring through metal conduits or use shielded
twisted-pair cabling when installing EJX series
transmitters in a plant.
2.11 Pressure Equipment
Directive (PED)
(1) General
• EJX Series pressure transmitters are
categorized as piping under the pressure
accessories section of directive 97/23/EC,
which corresponds to Article 3, Paragraph 3 of
PED, denoted as Sound Engineering Practice
(SEP).
2-11
IM 01C25B01-01E