www.aquantis.org
Microfreeze User’s Guide
9
6
Sensor installation and integration
6.1
Installation guidelines
The installation will be conducted by Aquantis engineers or Aquantis-certified engineers. Therefore, no specific
tools nor materials will be provided. Calibration of the sensor can be conducted with your own products.
WARNING:
The customer is responsible to connect all metal parts of the system to protective
earth via a low resistive path (< 1 Ohm). Aquantis is not responsible for any damage or
dysregulation of the system and other equipment due to no or a bad connection to earth.
The best sensor performance can be achieved by following these installation guidelines:
✓
In case a conveyor belt is used, the conveyor belt material should be rather transparent for microwaves.
The insertion loss caused by the belt may not exceed 3 dB. Most plastic conveyor belt materials comply
with this requirement, metal conveyor belts don’t.
✓
The HF emitter is mounted as close as possible above (or underneath) the conveyor belt or products by
which sufficient space should be foreseen for the products to pass. The HF receiver is placed underneath
(or
above)
the
conveyor
belt,
well
aligned
with
the
emitter
as
shown
in
Figure 1. It is strongly recommended to have as few as possible metal parts near the electromagnetic-
axis. The distance between the emitter and receiver (from antenna cover
–
to
–
antenna cover) should
be kept to a minimum. Foresee sufficient margin (> 2 cm) such that under all conditions moving parts
are not touching the instrument.