Thyracont VSI17D, Operating Instructions Manual

Page: 37 / 52

37
VSI-de-170326
4.4 Bake-Out – Detachment of Electronics
When a bake-out of the vacuum chamber is performed the temperature at the
sensor flange must not exceed 80°C.
Higher bake-out temperatures up to 160°C at the sensor flange can be realized if
the electronics unit and the magnets of the transducer are detached. For this pur-
pose unlock the two grub screws as shown below and pull the electronics unit
straight and without twisting off the flange. Then pull off the magnets, too.
The transducer must be disconnected from voltage supply before
detaching the electronics unit!
Do not interchange electronics units and sensor heads!
Make sure that no moisture or dust can intrude the electronics
unit!
During reassembly pay attention to correct orientation, do not
twist while attaching! This can damage the transducer!
Means for positioning: bolt on the bottom plate of the magnet
housing, notch at the sensor head.
Before reassembling the electronics make sure to slide the O-
ring sealing onto the magnet unit from the top!