( IV ) for /KN26
c. ATEX Type of Protection “n”
Model EJA Series differential, gauge, and absolute
pressure transmitters with optional code /KN26.
WARNING
When using a power supply not having a
nonincendive circuit, please pay attention not to
ignite in the surrounding flammable atmosphere.
In such a case, we recommend using wiring
metal conduit in order to prevent the ignition.
WARNING
• Electrostatic charge may cause an explosion
hazard. Avoid any action that cause the gen-
eration of electrostatic charge, such as rubbing
with a dry cloth on coating face of the product.
• Applicable standard: EN 60079-0:2009, EN60079-
15:2005
• Type of Protection and Marking Code:
Ex nL IIC T4 Gc
• Group: II
• Category: 3G
• Ambient Temperature: –30* to 60°C
*–15°C when /HE is specified
• Ambient humidity: 0 to 100%RH (No condensation)
• Enclosure: IP67
Note 1. Electrical Data
Ui = 32 Vdc
Ci = 3.52 nF
Li = 0 µH
Note 2. Installation
• All wiring shall comply with local installation
requirements. (refer to the installation diagram)
Safe Area
Hazardous Area
F0208.EPS
Ter minator
Ter minator
Field Instruments
EJA
Pressure
Transmitter
Field Instruments
Associated
Apparatus
⫹
⫺
⫹
⫺
⫹
⫺
Vmax = 32 Vdc
Ci = 3.52 nF
Li = 0 H
Note 3. Maintenance and Repair
• The instrument modification or parts replacement by
other than authorized representative of Yokogawa
Electric Corporation is prohibited and will void
Type of Protection “n”.
(V)
Tag plate for flameproof type
Tag plate for flameproof, intrinsically safe type,
type n protection, and Dust (for /KU22)
F0298.EPS
D
T65⬚C (Tamb.: 40⬚C), T85⬚C (Tamb.: 60⬚C),and T105⬚C (Tamb.: 80⬚C)
AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING. WHEN THE
AMBIENT TEMP. ⱖ70⬚C, USE THE HEAT-RESISTING CABLESⱖ90⬚C. SEE USER'S
MANUAL BEFORE USE. POTENTIAL ELECTROSTATIC CHARGING HAZARD.
SEE USER'S
MANUAL
Tamb. ⫺30(⫺15) TO 60⬚C
TEMP.CLASS/MAX SURFACE TEMP.
T6/T85⬚C
T5/T100⬚C
T4/T120⬚C
WARNING
D
, Ex tD A21 IP6X T85⬚C,T100⬚C,T120⬚C
ENCLOSURE:IP67
Tamb. ⫺40(⫺15) TO
KU22
Tamb. ⫺40(⫺15) TO 75⬚C(T6 and T4)
AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING.
WHEN THE AMBIENT TEMP. ⱖ70⬚C, USE THE HEAT-RESISTING
CABLESⱖ90⬚C. SEE USER'S MANUAL BEFORE USE.
⫺40(⫺15) TO 80⬚C(T5)
CAUTION
KF21
Tag plate for flameproof, intrinsically safe type,
type n protection, and Dust (for /KU21)
D
T65⬚C (Tamb.: 40⬚C), T85⬚C (Tamb.: 60⬚C),and T105⬚C (Tamb.: 80⬚C)
AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING.
WHEN THE AMBIENT TEMP. ⱖ70⬚C, USE THE HEAT-RESISTING
CABLESⱖ90⬚C. SEE USER'S MANUAL BEFORE USE.
SEE USER'S
MANUAL
Tamb. ⫺40(⫺15) TO 60⬚C
TEMP.CLASS/MAX SURFACE TEMP.
T6/T85⬚C
T5/T100⬚C
T4/T120⬚C
CAUTION
D
, Ex tD A21 IP6X T85⬚C,T100⬚C,T120⬚C
ENCLOSURE:IP67
Tamb. ⫺40(⫺15) TO
KU21
Gc
(47 Seiten)
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