Yokogawa EJA530E User Manual download pdf (Page 20)

<2. Handling Cautions>

2-13

IM 01C25F01-01E

2.11 Pressure Equipment

Directive (PED)

(1) General

• EJX/EJA-E Series pressure transmitters are

categorized as piping under the pressure

accessories section of directive 97/23/EC,

which corresponds to Article 3, Paragraph 3 of

PED, denoted as Sound Engineering Practice

(SEP).

• EJ510-D, EJ530-D, EJX610A-D,

and EJX630A-D can be used above 200

bar and therefore considered as a part of a

pressure retaining vessel where category III,

Module H applies. These models with option

code /PE3 conform to that category.

(2) Technical Data

• Models without /PE3

Article 3, Paragraph 3 of PED, denoted as

Sound Engineering Practice (SEP).

• Models with /PE3

Module: H

Type of Equipment: Pressure Accessory-Vessel

Type of uid: Liquid and Gas

Group of uid: 1 and 2

Model

Capsule

code

PS*

(bar)

V(L)

PS.V

(bar.L)

Category*

EJ510

EJX610A

A, B, C 100 0.1 10

Article 3,

Paragraph 3

(SEP)

D 700 0.1 70

EJ510,

EJX610A

with code /

PE3

D 700 0.1 70 III

EJ530,

EJX630A

A, B, C 100 0.1 10

Article 3,

Paragraph 3

(SEP)

D 700 0.1 70

EJ530,

EJX630A

with code /

PE3

D 700 0.1 70 III

*1: PS is maximum pressure for vessel itself based on

Pressure Equipment Directive 97/23/EC. Refer to

General Specication for maximum working pressure of a

transmitter.

*2: Referred to Table 1 covered by ANNEX II of EC Directive

on Pressure Equipment Directive 97/23/EC

(3) Operation

CAUTION

• The temperature and pressure of uid should

be maintained at levels that are consistent

with normal operating conditions.

• The ambient temperature should be

maintained at a level that is consistent with

normal operating conditions.

• Please take care to prevent water hammer

and the like from inducing excessive

pressures in pipes and valves. If phenomena

are likely, install a safety valve or take

some other appropriate measure to prevent

pressure from exceeding PS.

• Take appropriate measures at the device or

system level to protect transmitters if they

are to be operated near an external heat

source.

2.12 Low Voltage Directive

Applicable standard: EN61010-1

(1) Pollution Degree 2

"Pollution degree" describes the degree to

which a solid, liquid, or gas which deteriorates

dielectric strength or surface resistivity is

adhering. " 2 " applies to normal indoor

atmosphere. Normally, only non-conductive

pollution occurs. Occasionally, however,

temporary conductivity caused by condensation

must be expected.

(2) Installation Category I

"Overvoltage category (Installation category)"

describes a number which denes a transient

overvoltage condition. It implies the regulattion

for impulse withstand voltage. " I " applies to

electrical equipment which is supplied from the

circuit when appropriate transient overvoltage

control means (interfaces) are provided.

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