Instruction Manual ColorPlus Ex
20
10210E/5
The control unit can be placed in larger distance to the Photomter by using a
customized cable length:
Pos. Name
1 Photometer
2 SIREL control unit
3 Non Ex-zone
4 Partition
5 Ex-zone
Figure 13: Arrangement of control unit with user-spezific cable
The maximum distance (x) between control unit and terminal box depends on
the photometer type and the cable cross-section used:
Cable cross-
section [mm2]
ColorPlus Ex UV
Max. length x [m]
ColorPlus Ex VIS
Max. length x [m]
0.14
21
60
0.25
37
108
0.34
51
149
0.5
73
214
0.75
109
321
standard cable
1
142
417
1.5
203
595
The installation of a SITRA makes it possible to increase the distance between
the SIREL and the photometer to as much as 1200 m. In this case the SITRA
performs the signal amplifier function.
Pos. Name
1 Photometer
2 SITRA
3 SIREL
4 Non Ex-zone
5 Partition
6 Ex-zone
Figure 14: Arrangement for very long distances
Distances longer
than 5 m – variant 2
Longer distances
