Commissioning (installation and configuration)
Liquiphant FTL62 with electronic insert FEL67
12
Hauser
3.4.9
EMC compatibility
The device is certified in accordance with IEC 61326-3-1 and is thus suitable for general
industrial, safety-related applications. If the specified electromagnetic ambient conditions are
exceeded, the switch status might not be reliably detected. An unshielded cable up to
1
000 m (3
281 ft) long can be used between the devices in these environmental conditions.
Electromagnetic interference immunity can be further improved by using shielded cables.
3.4.10 Mounting with sliding sleeve
Coated sensor
NOTICE
Mechanical damage to coating
Corrosion protection and adequate sealing are no longer guaranteed. Device could be
destroyed.
‣
Coated sensors must not be mounted with a sliding sleeve.
Uncoated sensor
Particular care is required when mounting the device with a pipe extension (uncoated sensors)
in conjunction with a sliding sleeve. The operator must implement appropriate measures to
ensure that the switch point is not tampered with or that any tampering is reliably detected.
3.4.11 COM interface
When used as a safety function, there is the option of connecting an additional module to the
COM interface.
Bluetooth: BT module VU121
The module may be used for informational purposes only but not as part of the safety
function. It does not have a modifying effect on the safety function.
3.5
Useful lifetime of electric components
The established failure rates of electrical components apply within the useful lifetime as per
IEC 61508-2:2010 section 7.4.9.5 note 3.
According to DIN EN 61508-2:2011 section 7.4.9.5 (national footnote N3) appropriate
measures taken by the operator can extend the useful lifetime.
4
Commissioning (installation and configuration)
4.1
Requirements for personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill the
following requirements:
‣
Trained, qualified specialists must have a relevant qualification for this specific function
and task.
‣
Personnel must be authorized by the plant owner/operator.
‣
Be familiar with federal/national regulations.
