D4610 pages
D46
Isolating Barriers
for our sensors A5S1... in Ex-areas
Series D461
ER
BRAUN
Eingangsstromkreis Klemmen 22 bis 26 eigensicher
Input Circuit Terminals 22 to 26 intrinsically safe
^ll (1) G [EEx ia] IIC
TPS 03 ATEX 1 006 CE 0123
Hochstwerte
Maximum Values
8,7 V
62mA
130mW
CO :
300nF
2mH
Gerat muR auRerhalb des Ex-Bereiches errichtet
werden, Ausgang nicht eigensicher!
Transducer shall be installed outside the
hazardous area! Output not intrinsically safe!
BRAUN GMBH Trennstufe D461
INDUSTRIE-ELEKTRONIK Isolating Barrier D461
•••••••••••••
KEY FEATURES
■ ATEX/ lECEx certified, also approva
for UL/CSAand EAC (Russia,
Kazakhstan and Belarus Customs Union)
■ Protection grade Ex ia IIC T6/T4 Ga
■ Establishes a highly efficient system
to detect speed (and direction) in a
hazardous Ex-area, in conjunction with
one of our sensors series A5S1..
■ Provides intrinsic safety for the sensor
and its cabling
■ Comprehends sensor supply and
signal connection
■ Sensor supply monitoring
■ Free floating, therefore maximum
mmunity versus EM
■ Push / pull signal output to subsequent
monitors
D461 Front View
Safety first - for intrinsically safe (Ex ia) implementations
The BRAUN Isolating Barrier units D461 are ATEX/ lECEx certified, as well as being
approved for other international standards such as UL / CSA and EAC (Russia,
Kazakhstan and Belarus Customs Union) to meet the particular requirements of
explosion protection areas (zone 0 or 1)
The Isolating Barrier establishes a highly efficient system to detect speed and / or
direction in a hazardous Ex-area, in conjunction with one of our sensors series A5S1
to supply high level output signals to the periphery
The barrier provides an intrinsic safety circuit for the sensor and its cabling and does
not require Ex d measures
BENEFITS
■ Maintenance-free during Lifetime,
therefore minimized TCO
■ No EMI influence compared to
zener barriers
■ No signal degradation compared to
zener barriers
■ Powerful signal output to signal
evaluation
The signal input is isolated from the signal output. Both are isolated versus the power
supply. The signal output of the unit repeats the input pulse signals with push / pul
characteristics
The signal input matches the specifications of the speed sensor series A5S1..., which
are approved as intrinsic safety devices, to be installed in hazardeous area zone 0 or 1
The sensor supply circuit is monitored and a fault is signalized
The barrier unit D461 must be installed in a safe (non-hazardeous) area or within an
explosion-proof (Ex d) enclosure
BRAUN
"