User`s manual

<2. Handling Cautions>
2-13
IM 01C25B01-01E
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certied.
• Input voltage of the safety barrier must be
less than 250 Vrms/Vdc.
• Theinstrumentmodicationorparts
replacement by other than authorized
representative of Yokogawa Electric
Corporation and will void IECEx Intrinsically
safeandtypencertication.
F0210-1.ai
Pressure Transmitters
IECEx certified
Safety Barrier
Supply
Hazardous Location Nonhazardous Location
General
Purpose
Equipment
+
–
+
–
+
–
+
–
[Intrinsically Safe]
Group IIC, Zone 0
F0210-2.ai
Pressure Transmitters
Supply
Hazardous Location Nonhazardous Location
+
–
+
–
Not Use
Safety Barrier
[type n]
IECEx Certified
Equipment [nL]
Group IIC, Zone 2
b. IECExFlameproofType
CautionforIECExameprooftype.
Note 1. Model EJX/EJA-E Series pressure
transmitters with optional code /SF2,
/SU2, or /V1F are applicable for use in
hazardous locations:
• No.IECExCSA07.0008
• ApplicableStandard:IEC60079-0:2011,
IEC60079-1:2007-4
• Flameproof for Zone 1, Ex d IIC T6...T4 Gb
• Enclosure: IP66/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)
• Supply Voltage: 42 V dc max.
32 V dc max. (F
OUNDATION Fieldbus and
PROFIBUS PA type)
9 to 28 V dc, 27 mW (Low Power type)
• Output Signal: 4 to 20 mA dc
15 mA (F
OUNDATION Fieldbus and
PROFIBUS PA type)
1 to 5 V (Low Power type)
Note 2. Wiring
• Inhazardouslocations,thecableentry
devicesshallbeofacertiedameproof
type, suitable for the conditions of use and
correctly installed.
• Unusedaperturesshallbeclosedwith
suitableameproofcertiedblanking
elements.
• Wiring connection for output signal code Q
(Low Power type) shall follow the diagram
below.
F0214.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 5
MINUTES BEFORE OPENING.
• WARNING:
 WHENTHEAMBIENTTEMP.≥65°C,USE
HEAT-RESISTING CABLE AND CABLE
GLAND≥90°C.
• Takecarenottogeneratemechanical
sparking when accessing to the instrument
and peripheral devices in a hazardous
location.
• Electrostaticchargemaycauseanexplosion
hazard. Avoid any actions that cause the
generation of electrostatic charge, such as
rubbing with a dry cloth on coating face of the
product.