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Ex-application – Baumer Flex Bar 3431 User Manual

Page 4

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Page 4

Design and specifi cations subject to change without notice

Installation Manual 5850-016

www.baumerprocess.com

5850-016/2008-06-12/Re

v.

A1

This data sheet ma

y only be reproduced in full.

FlexBar 3431 is approved for Ex ia IIC T4/T5 and ATEX II 1G accor-
ding to the current EU-directives.

FlexBar 3431 must be installed in accordance with prevailing
guidelines for zone 0 or 1, and a certifi ed, intrinsically safe zener
barrier with the maximum values U

max

= 20 V

dc

; I

max

= 0.1 A ; P

max

= 0.75 W

must be used.
Alternatively FlexBar 3431 can be connected to a Profi bus DP/PA
converter, such as coupler or link. The maximum specifi cations must
follow FISCO standards and not exceed:
U

max

= 17.5 V

dc

; I: All ; P: All

Ex-confi guring

None of the two types of FlexProgrammer confi guring unit must be
connected to the FlexView within the hazardous area.

Confi guring procedure:
a) Disconnect the FlexBar 3431 from the circuitry within the
hazardous

area.

b) Bring the FlexBar to the safe area.
c) Connect the FlexProgrammer and confi gure the FlexBar.
d) Re-install the FlexBar in the hazardous area.
e) Re-connect the signal cable.

WARNING

This product contains no replaceable parts.
In case of malfunction the product must be shipped to Baumer for
repair.

WARNING

Products with painted and/or plastic surfaces (e.g. display) imply a risk
of electrostatic charging.
To prevent electrostatic hazard - do only clean with a moist cloth.
After mounting the device - do check that the housing has a ground
potential.

Ex-application

FlexBar 3431

Zener barrier/coupler/link

Zone 0/1

Safe area

Approval Ex ia IIC T4/T5, ATEX II 1G

Internal inductivity

L

i

< 10 µH

Internal capacity

C

i

< 5 nF

Coupler/link FISCO

Standard;

U: 17.5 V

dc

; I: All ; P: All

Zener barrier

U < 20 V

dc

; I < 0.1 A ; P

< 0.75 W

Temperature class

T1...T4:

-30 < T

amb

< 85°C

T5:

-30 < T

amb

< 60°C

Note: With a readable display the lowest temperature is -10°C