YOKOGAWA Dpharp EJA118N User Manual Download Page 16

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IM 1C22H1-01E

2-8

2. HANDLING CAUTIONS

b. CENELEC (KEMA) Flameproof Type

Caution for CENELEC (KEMA) flameproof type.

Note 1. Model EJA Series differential, gauge, and

absolute pressure transmitters with
optional code /KF1 for potentially explo-
sive atmospheres:

• Type of Protection and Marking Code: EEx d IIC

T6···T4

• Temperature Class: T6, T5, and T4
• Maximum Process Temperature:

C (T6), 100

C (T5), and 120

• Ambient Temperature: –40 to 80

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 certified

flameproof type, suitable for the conditions of use.

Note 4. Operation

• Keep the “CAUTION” label to the transmitter.

CAUTION: WAIT 1 MIN. AFTER
POWER-DISCONNECTION, BEFORE
OPENING THE ENCLOSURE.

• 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 modification or parts replacement

by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void KEMA Flameproof Certification.

c. IEC (KEMA) Type of Protection “n”

Caution for IEC (KEMA) Type of Protection “n.”

Note 1. Model EJA Series pressure transmitters

with optional code /KU1 for potentially
explosive atmospheres.

• Type of Protection and Marking Code:

Ex nA IIC T4

• Temperature Class: T4
• Process Temperature: 120

C max.

• Ambient Temperature: –40 to 60

Note 2. Electrical Data

• Supply and output circuit

≤

30 V dc, 165 mA

(ter and –)

Note 3. Installation

• All wiring shall comply with local installation

requirements. (refer to the installation diagram)

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 KEMA Type of Protection “n” Certifica-
tion.

Power Supply

(Zone 2 only)

Transmitter

Supply

Nonhazardous Location

[Installation Diagram]

Hazardous Location

–

F0209.EPS

Ratings of the Power Supply as follows;

Maximum Voltage: 30 V
Maximum Current: 165 mA

d. CENELEC (KEMA) Intrinsically Safe Type/

CENELEC (KEMA) Flameproof Type/IEC
(KEMA) Type of Protection “n”

Model EJA Series pressure transmitters with
optional code /KU1 can be selected the type of
protection (CENELEC (KEMA) Intrinsically
Safe or CENELEC (KEMA) Flameproof or IEC
(KEMA) Type of Protection “n”) for use in
hazardous locations.

Note 1. For the installation of this transmitter,

once a particular type of protection is
selected, any other type of protection
cannot be used. The installation must be
in accordance with the description about
the type of protection in this instruction
manual.

Note 2. In order to avoid confusion, unnecessary

marking is crossed out on the label other
than the selected type of protection when
the transmitter is installed.