Yokogawa EJA110E User Manual
User’s
Manual
DPharp
Differential Pressure and
Pressure Transmitters
Manual Change No. 13-004
Please refer to this manual change for the handling cautions of ATEX certication if the products include
the option code /KS2 or /KF21.
IM No. Model & Option code
IM 01C25A01-01E
IM 01C25B01-01E
IM 01C25C01-01E
IM 01C25F01-01E
IM 01C25H01-01E
IM 01C25K01-01E
EJXA with option code /KS2 or /KF21
June 28, 2013
ATEX Certication
(1) Technical Data
a. ATEX Intrinsically Safe Type
Caution for ATEX Intrinsically safe type.
Note 1. Model EJX Series pressure transmitters
with optional code /KS2 for potentially
explosive atmospheres:
• No. KEMA 03ATEX1544 X
• Applicable Standard:
EN 50014:1997, EN 50020:2002,
EN 50284:1999, EN 50281-1-1:1998
• Type of Protection and Marking code:
EEx ia IIC T4
• Group: II
• Category: 1G, 1D
• Ambient Temperature for gas-proof:
–50 to 60°C
• Process Temperature (Tp.): 120°C max.
• Maximum Surface Temperature for dustproof:
T85°C (Tamb.: –40* to 60°C, Tp.: 80°C)
T100°C (Tamb.: –40* to 60°C, Tp.: 100°C)
T120°C (Tamb.: –40* to 60°C, Tp.: 120°C)
* –15°C when /HE is specied.
• Enclosure: IP66 and IP67
Note 2. Electrical Data
• In type of explosion protection intrinsic
safety EEx ia IIC only for connection to a
certied intrinsically safe circuit with following
maximum values:
Ui = 30 V
Ii = 200 mA
Pi = 0.9 W
Effective internal capacitance; Ci = 10 nF
Effective internal inductance; Li = 0 mH
Note 3. Installation
• All wiring shall comply with local installation
requirements. (Refer to the installation
diagram)
Note 4. Maintenance and Repair
• The instrument modication or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void
DEKRA (KEMA) Intrinsically safe
Certication.
Note 5. Special Conditions for Safe Use
• In the case where the enclosure of the
Pressure Transmitter is made of aluminium,
if it is mounted in an area where the use of
category 1 G apparatus is required, it must
be installed such, that, even in the event of
rare incidents, ignition sources due to impact
and friction sparks are excluded.
[Installation Diagram]
Hazardous Location
Transmitter
+
Supply
–
*1: In any safety barriers used the output current must be
limited by a resistor “R” such that Imaxout-Uz/R.
WARNING
Nonhazardous Location
+
Safety Barrier
–
F0206r.ai
To satisfy IP66 or IP67, apply waterproof glands
to the electrical connection port.
b. ATEX Flameproof Type
Caution for ATEX ameproof type.
Note 1. Model EJX Series pressure transmitters
with optional code /KF21 for potentially
explosive atmospheres:
• No. KEMA 07ATEX0109
• Applicable Standard: EN 60079-0:2006,
EN 60079-1:2004, EN 61241-0:2006,
EN 61241-1:2004
• Type of Protection and Marking Code: Ex d
IIC T6...T4, Ex tD A21 IP6x T85, T100, T120
• Group: II
• Category: 2G, 2D
• Enclosure: IP66 and IP67
• Temperature Class for gas-poof:
T6, T5, and T4
• Ambient Temperature for gas-proof:
–50 to 75°C (T6), –50 to 80°C (T5), and
–50 to 75°C (T4)
• Maximum Process Temperature (Tp.) for
gas-proof:
85°C (T6), 100°C (T5), and 120°C (T4)
• Maximum Surface Temperature for dustproof:
T85°C (Tamb.: –40* to 40°C, Tp.: 80°C)
T100°C (Tamb.: –40* to 60°C, Tp.: 100°C)
T120°C (Tamb.: –40* to 80°C, Tp.: 120°C)
* –15°C when /HE is specied.
*1
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