FT-10 Fill Technical Manual, Rev. 2.21, July 2020
Page 15 of 131
4. I
NSTALLATION
PRECAUTION
:
Please read this section carefully before installation of the instrument. Applying the
recommendations in this section will increase your system reliability and long-term performance.
4.1 Recommendations
4.1.1 Control Cabinet Design
Warning
:
Please care the following warnings for designing the control cabinet which will increase your
system reliability.
The control cabinet should be designed so that Indicator can operate safely. The panel should be placed in a
clean area, not getting direct sun light if possible, with a temperature between -10 ºC and +40 ºC, humidity
not exceeding 85% non-condensing (-
15°C … +55°C non approved, non OIML). All external cables should
be installed safely to avoid mechanical damages.
FT-10 FILL instruments are very low level signal measuring instruments. To avoid electrical noise, FT-10
FILL should be separated from the equipment that produces electrical noise. Preferable use metal cabinet
against radio frequency interference and the cabinet shall be connected to ground against the
electromagnetic disturbances. Load cell cable trays must be separated from others, if possible. If there are
noise-generating equipment such as heavy load switches, motor control equipment, inductive loads etc.,
please be careful against the EMC interference in the cabinet. If possible protect FT-10 FILL instruments
with the faraday cage or install them in separate section or install them far away from this kind of equipment.
Connect parallel reverse diodes to the DC inductive loads like relays, solenoids etc. to minimize voltage
peaks on the DC power lines.
4.1.2 Cabling
All cables coming to the control cabinet shall be shielded. Please use separate cable tray for these low
signal level cables. Distance from load cell cables, interface cables and DC power supply cables to power
line cables shall be minimum 50 cm.
4.2 Mechanical Installation
Take care to the housing dimensions and the suggested panel hole dimensions given in the Page 13. To
avoid electrical noises, protect your controller which has very low input signal level from the equipment that
produces electrical noise in panel mounting.
4.3 Electrical Connections
Warning
:
Please always remember that FT-10 FILL instruments are very low voltage measuring
instruments. Your control cabinet design and proper installation increases reliability and performance of the
instrument. Please do not forget that the instrument must be powered off before inserting or removing any
peripheral connector.
The electrical installation and quality of instrument’s grounding will provide weighing accuracy and the safety
of your controller. If the energy condition of your plant is bad, prepare a special power line and grounding.
All required electrical connections should be done as described below.
If you have to service the controller, turn the power off and wait at least 30 seconds before interfering.
