AURATON 3021 - Page 11

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AURATON 3021
AURATON 3021 R
3.
NO COM
NC
NC
COM
NO
wire
terminals
cover
wire
terminals
It is a typical bistable relay. The NC terminal is not used in most cases.
NOTE: Replace the plastic cover after wiring.
Battery installation / replacement
The battery socket is located inside the controller, at the front of the
enclosure. To install the batteries, remove the controller enclosure
as described in the "Wiring your AURATON 3021" section.
NOTE: We recommend using alkaline bateries to supply AURATON
controllers. Rechargeable batteries should not be used because
their rated voltage is too low.
2x AAA 1,5 V
battery socket
Place two AAA 1.5V batteries in the battery socket
observing the correct polarity. ON 3021" section.
2x AAA 1,5 V
battery socket
A terminal block
An external
temperature sensor
AURATON 3021 DS / 3021 P
Connecting an external
temperature sensor.