153
FC4‚ FC4 L, FC4 Ex (HS), FC4 L Ex (HS)
Ex – Technical data / accessories
Applied standards
According to EC Prototype Test Certificate for explosion
protection:
EN 60079-0
EN 60079-11
EN 61241-0
EN 61241-11
Mimimum requirements
for the
headphones /
headset to be connec-
ted to a
FC4 (L) Ex HS
The FC4 (L) Ex HS provides the following maximum
data at the socket for the
headphones / headset:
U
o
= 4,2 V and I
o
= 350 mA
The
headphones / headset to be connected to the
handset FC4 (L) Ex HS has to meet the following condi-
tions:
Approval according to
II 2 G Ex ib IIC T4
U
I
≥
4,2 V and I
I
≥
350 mA
Input capacitance C
I
≤
1 µF
Input inductance L
I
≤
300 µH
FC-4_BA_trilingual.book Seite 153 Montag, 18. Mai 2009 7:26 07
