42/24-12-2 EN
Advance Optima Ex Analyzer Modules Operator’s Manual
23
Connect the Power Supply
Power Supply
Requirements
•
The Ex analyzer module must be supplied with 24 VDC
±
5 %.
The Ex analyzer module can be powered by the central unit power supply if the
optional power line filter –Z01 is installed in the central unit. If this power line
filter is not installed the Ex analyzer module is to be powered by an separate
power supply.
•
The supply voltage must meet the following safety requirements:
•
Safe low voltage (SELV) or
operating low voltage with secure isolation (PELV)
•
Maximum value in failure mode 35 V
•
The power supply must be disconnectable.
Analyzer Module
Power Consumption
Caldos 15-Ex
approx. 35 W
Caldos 17-Ex
approx. 18 W
Magnos 106-Ex
approx. 52 W
Uras 14-Ex
approx. 75 W
CAUTION!
Only one analyzer module should be supplied with 24 VDC from the central
unit power supply. A separate 24-VDC supply is required for additional
analyzer modules.
24-VDC Connecting
Cable
At the factory a 10-meter long 24-VDC cable (3 x 2.5 mm
2
) is attached to the Ex
analyzer module (see Figure 9). The connecting cable passes through a pressure-
tight cable opening.
Figure 9
24-VDC Connecting
Cable
BN
BU
GNYE
CAUTION!
The 3-conductor 24-VDC connecting cable attached to the Ex analyzer
module should not be shortened to less than 1 meter (note the marks on the
cable) and should not be damaged.
(Ex) Central Unit
Connection
The 24-VDC connecting cable is brought into the (Ex) central unit via a threaded
cable connection and attached to the power line filter -Z01.
Continued on next page
