MEDC XB8 User Manual

Page 4

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3.0 OPERATION
The operating voltage of the unit is stated on the unit label.
The beacon can be initiated directly when power is applied, if the local link between terminals 7 and 8 is con-
nected. Alternatively, the local link can be removed and a remote, voltage free contact can be connected to
terminals 7 and 8 in its place. In this case, the beacon will only flash when power is connected to the terminals
and the remote contact is closed.

Barrier types
Typical suitable barrier types are shown in the table below

BARRIER CERT. No.

XB8 UNIT

TYPE

BARRIER

SPECIFICATION

TYPICAL

BARRIER

ATEX

IECEx

12V IIB / IIC

15V, 50 IIB /

IIC

MTL7715P+

24V IIC

28V, 234 IIC

MTL7728P+

BAS01ATEX7202

24V IIB

28V, 164 IIB

MTL7729P+

BAS01ATEX7203

IECEx BAS 05.0019

02/11

INSTALLATION DRAWING

12/11

F I X I N G
H O L E S

2 P O S I T I O N S

GENERAL ARRANGEMENT