During this morning maintenance we completed the installation of the HW for the etalon control:

- installation of the drivers for the heating belts (Kert 420 model, Figs 1-2).
- installation of the remaining cables (prepared by G. Sposito).
- labeling and connections of all the parts.

The Kert420  have been connected to the mains via the remotely controlled EnerGenie PDU "TCS1", port #3 for NI, and port #4 for WI (Fig3).

In agreement with A.Masserot, the Kert inputs have been  connected to the  DAC #40  (DAQ box #31),  channel #2 for NI, and channel #3 for WI  (Fig4) for remote voltage adjustment..

The load seen by the Kert is 2.2 Ohms  (heating belt + cable).

With Alain at phone acting on the DAC values, we checked the remote adjustment of the voltage delivered to the heating belts:

So, as it can be evinced, tha maximum power that can be delivered to each heating belt is 220W.  This is enough to increase the T of the tower lower part (and of the payload)  of a few degrees.

At the end, we left  both Kert switched on, and with 0 voltage at the output.

They are ready to be remotely controlled by the DAC.