Ex-application – Baumer Flex Bar 3431 User Manual
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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