JULABO LC 4 Temperature controller - Manual (Page 17)

LC4
17
Indirectly heated bath liquid:
 The bath liquid is indirectly heated.
 Working and safety sensors must both be immersed in the bath liquid.
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14
15
18
30
14a
15a
31
18a
5.6. Switching on / Start - Stop
Switching on:
Turn on the mains power switch.
The unit performs a self-test. A signal sounds, and all
segments of the two 4-digit displays as well as all indicator
lights will illuminate.
Then the software version (example: n 1.0) and the model
description "LC 4" appear.