
Expansion units for SecuriFire 2000
48 / 128
Mounting and installation, Technical Description, T 811 086 en e
6.13
MMD130 Ex-i in Ex-areas with safety barrier Z787
Notice
This connection does
NOT
fulfil the requirements of VdS Directive 2489.
V
D
S
H
X
B6-EIO
X2/X3
1
10
5
1
8
4
Sicherheitsbarriere
Z787 / Z787F
+
+
-
-
Ex-Bereich
Max. 10 Meldersockel USB 501-7 Ex-i
Endmelder
2k7
Potentialausgleich
Fig. 60 Connecting MMD130 Ex-i detectors in Ex areas with safety barrier Z787
6.14
MMD130 Ex-i in Ex-areas with direct current isolating transformer GTW 01
Notice
This connection does
NOT
fulfil the requirements of VdS Directive 2489.
V
D
S
H
X
B6-EIO
X2/X3
1
10
Ex area
Max. 10 USB 501-7 Ex-i detector bases
Last detector
4k7
GTW 01
+
+
Fig. 61 Connecting MMD130 Ex-i detectors in Ex areas with GTW 01 direct current isolating converter