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Nivocompact FTC 731
22
Function Control
With the probe uncovered, touch the central retaining screw of the
electronic insert with a screwdriver holding it by the insulated handle.
This simulates the bulk solid covering the probe.
The LED indicates a change of status.
This is only a function control test of the instrument.
Please also check for the correct operation for limit detection by filling and
emptying the silo over the installation point!
Final Points
Screw the housing cover securely down after connection and calibration
so that the standards comply to Protection IP 55 or IP 66.
For applications in the open, a protective sun cover (accessory) is to be
used to cover the aluminium housing of the Nivocompact.
Maintenance
The capacitive level limit switch Nivocompact FTC 731 requires no
maintenance when correctly installed and used properly under the normal
conditions specified by the system.
When cleaning and checking the silo:
• Examine the probe to check for damage to the installation, especially
around the threaded boss
• Remove material build-up, especially at the tip of the probe
With initial but consistently low material build-up:
Recalibrate the Nivocompact after the material build-up has occurred,
if it does not always switch correctly.
Ensure that the cable gland and housing cover are tight fitting so that no
moisture can enter.
Troubleshooting
When an error is indicated, first check to make sure that
• The Nivocompact is properly connected
• There is good earthing and ground connection
• A power supply exists at the terminals
• All instruments connected are operating correctly
• In the case of the electronic insert EC 30, the minimum required load of
the connected instruments is at least present
• The correct fail-safe mode has been selected
• The switching delay has been correctly adjusted
• The capacitance calibration has been carried out correctly
Carry out a function control (see above)
Refer to the Error Tables, Fig. 22 and Fig. 23.
Maintenance
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