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 certication 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

EJXA with option code /KS2 or /KF21

June 28, 2013

ATEX Certication

(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 specied.

• Enclosure: IP66 and IP67

Note 2. Electrical Data

• In type of explosion protection intrinsic
safety EEx ia IIC only for connection to a
certied 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 modication or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void
DEKRA (KEMA) Intrinsically safe
Certication.

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 specied.

*1

Note 2. Electrical Data

• Supply voltage: 42 V dc max.

• Output signal: 4 to 20 mA

Note 3. Installation

• All wiring shall comply with local installation
requirement.

• The cable entry devices shall be of a certied
ameproof type, suitable for the conditions of
use.

Note 4. Operation

• Keep the “WARNING” label attached to the
transmitter.

WARNING: AFTER DE-ENERGIZING,

DELAY 5 MINUTES BEFORE OPENING.
WHEN THE AMBIENT TEMP.≥65°C, USE
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 5. Maintenance and Repair

• The instrument modication or part
replacement by other than an authorized
representative of Yokogawa Electric
Corporation is prohibited and will void KEMA
Flameproof Certication.

WARNING

To satisfy IP66 or IP67, apply waterproof glands
to the electrical connection port.

(3) Installation

WARNING

• All wiring shall comply with local installation
requirements and the local electrical code.

• There is no need for conduit seal in Division
1 and Division 2 hazardous locations
because this product is sealed at the factory.

(4) Operation

WARNING

• OPEN CIRCUIT BEFORE REMOVING
COVER. INSTALL IN ACCORDANCE WITH
THIS USER’S MANUAL

• Take care not to generate mechanical
sparking when access to the instrument and
peripheral devices in a hazardous location.

(5) Maintenance and Repair

WARNING

The instrument modication or parts replacement
by other than an authorized Representative of
Yokogawa Electric Corporation is prohibited and
will void the certication.

(6) Name Plate

(2) Electrical Connection

A mark indicating the electrical connection type
is stamped near the electrical connection port.
These marks are as followed.

Screw Size Marking

ISO M20 × 1.5 female

ANSI 1/2 NPT female

M

A or WN or

Location of the mark

F0208r.ai

● Name plate

● Tag plate for flameproof type

No. KEMA 07ATEX0109
Ex d IIC T6...T4, Ex tD A21, IP6X
Enlcosure : IP66, IP67
TEMP. CLASS T6 T5 T4
MAX PROCESS TEMP.(Tp.) 85 100 120 °C
Tamb. -50(-15) to 75 80 75 °C
T85°C(Tamb.:40°C, Tp.:80°C),T100°C(Tamb.:60°C, Tp.:100°C),
T120°C(Tamb.:80°C, Tp.:120°C) Min.Tamb.:-40(-15)°C(for Dust)

D

WARNING

AFTER DE-ENERGIZING, DELAY 5 MINUTES
BEFORE OPENING.
WHEN THE AMBIENT TEMP. ≥ 65°C,
USE THE HEAT-RESISTING CABLES ≥ 90°C

● Tag plate for intrinsically safe type

No. KEMA 03ATEX1544 X
EEx ia IIC T4
IP66 and IP67
Tamb. -50(-15) to 60°C MIN. Tamb.:-40(-15)°C(for DUST)
MAX. PROCESS TEMP.(Tp.) 120°C
T85°C(Tp.:80°C), T100°C(Tp.:100°C), T120°C(Tp.:120°C)
Ui=30V, Ii=200mA , Pi=0.9W, Ci=10nF, Li=0

D

F0209r.ai

MODEL: Specied model code.

91K819857 032

STYLE: Style code.
SUFFIX: Specied sufx code.
SUPPLY: Supply voltage.
OUTPUT: Output signal.
MWP: Maximum working pressure.
CAL RNG: Specied calibration range.
NO.: Serial number and year of production*1.
TOKYO 180-8750 JAPAN:
The manufacturer name and the address*2.

*1: The rst digit in the nal three numbers of the serial

*2: “180-8750” is a zip code which represents the

number appearing after “NO.” on the nameplate
indicates the year of production. The following is an
example of a serial number for a product that was
produced in 2010:

The year 2010

following address.

2-9-32 Nakacho, Musashino-shi, Tokyo Japan