BEKA BA377E, Manual

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2.7 Control outputs - optional
Each of the two factory fitted optional control outputs
is a separate galvanically isolated intrinsically safe
circuit with output safety parameters complying with
the requirements for
simple apparatus . This allows
the control output terminals A1 & A2 and A3 & A4 to
be connected to almost any intrinsically safe circuit
protected by a Zener barrier or galvanic isolator
providing the output safety parameters of the circuit
do not exceed:
Uo ≤ 28V dc
Io ≤ 200mA dc
Po ≤ 0.84W
The maximum equivalent capacitance and
inductance between each set of control output
terminals is:
Ci = 24nF
Li = 8µH
To determine the maximum permissible cable
capacitance Ci should be subtracted from the
maximum permitted external capacitance Co
specified by the certificate for the intrinsically safe
interface powering the circuit being switched by the
control output. See figs 4 & 5.
2.8 Certification label information
The BA377E product certification label is fitted in a
recess on the top outer surface of the enclosure. It
shows the ATEX and IECEx certification information
plus BEKA associates name and location and the
instrument serial number. Certification information
from other authorities may also be included.
BA377E Certification information label