Hach-Lange RTC112 SD-Module - Manual (Page 17)

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Section 3 Installation
3.1 Installation of the RTC Module
Only install the RTC Module on a DIN rail. The module must be attached horizontally, with
at least 30 mm (1.2 in.) space at the top and bottom to make sure that the passive
aeration element can function correctly.
When used indoors, the RTC Module must be installed in a control cabinet. When used
outdoors, the RTC Module requires a suitable enclosure that provides the technical
specifications indicated in
Section 1 .
The RTC Module is operated via the sc1000 controller (see the user manual for the
sc1000 controller).
Note: The software version of the sc1000 controller must be V3.20 or above.
3.1.1 Supply voltage of the RTC Module
Note: An external deactivation switch is recommended for all installations.
3.2 Connection of process measurement instruments for the TSS
concentration
The measurement signals of the sc sensors for the measurement of the concentration of
solids (e. g. SOLITAX sc) are provided to the RTC112 SD-Module via the RTC
communication card (YAB117) in the sc1000 probe module.
3.2.1 Power supply of the sc sensors and the sc1000 controller
See operating instructions of the respective sc sensors and the sc1000 controller.
3.3 sc1000 controller connection
Connect the SUB-D plug supplied to a dual-core, sheathed data cable (signal or bus
cable). For additional information regarding the data cable connection, refer to the
enclosed assembly instructions.
D A N G E R
Only qualified experts may perform the tasks described in this section of the manual, while
adhering to all locally valid safety regulations.
C A U T I O N
Always lay cables and hoses so that they are straight and do not pose a tripping hazard.
C A U T I O N
Before the power supply is switched on, refer to the instructions in the relevant manuals.
Table 2 Supply voltage of the RTC Module
Voltage 24 V DC (–15 % / +20 %), max. 25 W
Recommended fuse C2
With 110–230 V option 110–230 VAC, 50-60 Hz, approximately 25 VA