Yokogawa EJA110E Manual do Utilizador descarregar pdf (Página 2)

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 dust-

proof:

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.

Transmitter

Supply

Safety Barrier

*1

Nonhazardous Location

[Installation Diagram]

Hazardous Location

+

–

+

–

F0206r.ai

*1: In any safety barriers used the output current must be

limited by a resistor “R” such that Imaxout-Uz/R.

WARNING

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 dust-

proof:

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.

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