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July 2022
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23
Electrical installation
RELAY 2 (Relay 2): Limit value alarm 2 /
(lower limit value 2)
or reagent level warning
Terminal designation
Description
Connection
20 COM
Relay 2 COM
common connection
see page 9
"Load capacity
21 NC
Relay 2 NC
normally closed
22 NO
Relay 2 NO
de-energised open
Relay 2 Function limit value alarm 2 /
(lower limit value 2)
The limit value 2 (lower limit value 2) alarm can optionally be triggered when the set limit value is
exceeded or not reached.
Note the limit value mode Max/Min or Max/Max.
See "Limit value mode" page 37
Relay 2 Reagent level function:
If the reagent level has fallen below 10%, the reagent level warning is activated. When operating
with soft water, a bottle content for 1000 analyses remains when a warning is received.
Alternatively, the function can also be used on relay 4.
If the level of the reagent bottle is above 10%, relay 2 is de-energised and establishes a connection
from COM to NC. Additionally, the symbol R2 is not marked in the display.
If the level falls below 10%, relay 2 is energised and establishes a connection from COM to NO. In
addition, the symbol R2 is marked in black in the display.
