Bluelab Dosetronic Peridoser Kit Instrukcja Użytkownika Pobierz pdf (Strona 19)

Version P1.3 : 151012

Bluelab Dosetronic Peridoser Kit

Bluelab Corporation LimitedBluelab Corporation Limited

2.12 Wiring Alarm and External Lockout

External alarm

To connect an external alarm to your system, put a

wire on each side of the closing contacts marked EXT

ALARM.

Note: The external alarm needs to have an

independent power source.

External lockout

To enable the external lockout function on the

Dosetronic, a switch needs to be connected to the

external lockout wiring terminal on the alarm circuit

board (see diagram on page 14). There are two

types of switches that can be wired in: those that are

normally open and those that are normally closed.

For example: If you connect a ﬂ ow switch (that opens

when water stops ﬂ owing) to the normally closed port,

the external lockout function will sense that the water

has stopped and stop your system from dosing.

Common

Normally Closed

Normally Open

Connect multiple normally

closed switches in series

Connect multiple normally

open switches in parallel

- +

EXT ALARM

Refer to speciﬁ cations for

maximum power rating

Parallel

Series

COM

Note: You can have both NC and NO combinations connected

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Bluelab Dosetronic Peridoser Kit Instrukcja Użytkownika Strona 19