Ceia THS - Checking for Environmental Electromagnetic Interference; Display Messages

THS – FI022GB2K8v3 --- V - MAINTENANCE
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THS V3.xxx
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THS V3.xxx
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THS V3.xxx
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Fig.III-9a. Example: signal well below
the threshold level
Fig.III-9b. Example: signal just below
the threshold level
Fig.III-9c Example: signal above the
threshold level (alarm).
Checking for environmental electromagnetic interference
The THS Metal Detector has very high immunity to electromagnetic interference. However, it may happen that electrical
devices, usually power devices, cause interference which is strong enough to lead to false alarms. To identify these
sources of interference the indication of the signal received from the probe, which the detectors normally shows on the
display, can be used. Under normal conditions, the indication on the display should correspond to that in Fig. III-9a.
Display Messages
The Metal Detector display shows messages relating to its current mode of operation:
DISPLAY MEANING
THS V3.xxx
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Normal functioning
The Metal Detector is in normal operating mode:
On the fourth line of the display the signal being received
is displayed by means of a horizontal illuminating bar,
subdivided into 20 sections. When the signal increases,
the bar extends towards the right.
THS V3.xxx
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Metallic mass detection
The Metal Detector is in normal operating mode: it has
just detected a metal object and activates connected
slave devices. The alarm threshold corresponds to 10
illuminated sections: the sections from 1 to 10 are bars,
those from 11 to 20 are asterisks.
access code
000000
Programming access phase
The Metal Detector requests a password to be entered.
Sensitivity 265 <-
Products
Programming
The Metal Detector has been set to programming mode:
accessible parameters can be modified.
**TEST**
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Test procedure
The Metal Detector requires an operational test to be
carried out (see “Periodic test management” section in
this manual).
**BIN FULL**
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Self diagnosis
The device, when a possible functional problem is
detected, shows on the display the problem kind and
utters the alarm signal, asking for the intervention of the
operator.