Yokogawa EJX438A User Manual

User’s Manual

DPharp Differential Pressure and Pressure Transmitters

Manual Change No. 12-021-2

For the products of EJX and EJA-E series with any of the following option codes, please refer to this manual change for handling cautions of ATEX approval.

Model Option code

EJX110A, EJX115A, EJX118A, EJX120A, EJX130A, EJX210A, EJX310A, EJX430A, EJX438A, EJX440A, EJX510A, EJX530A, EJX610A, EJX630A

EJX110A, EJX115A, EJX118A, EJX120A, EJX130A, EJX210A, EJX310A, EJX430A, EJX438A, EJX440A, EJX510A, EJX530A, EJX610A, EJX630A, EJA110E, EJA115E, EJA118E, EJA120E, EJA130E, EJA210E, EJA310E, EJA430E, EJA438E, EJA440E, EJA510E, EJA530E

Applicable part of this

manual change

/KF21, /KS2

( I )

/KS26

( II )

Oct. 15, 2012

  <2.HandlingCautions>

(I)

 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 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

–

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

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.

  <2.HandlingCautions>

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



(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.

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

(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

A or W

Location of the mark

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(6) NamePlate

● 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 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)

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 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

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