Degree Of Protection; Shock Resistance; Vibration Resistance; Electromagnetic Compatibility - Endress+Hauser Liquiphant FTL31 Manual

Degree of protection

Shock resistance

Vibration resistance

Electromagnetic
compatibility

Reverse polarity protection

Short-circuit protection

16
• IP65/67 NEMA Type 4X Enclosure (M12 connector)
• IP65 NEMA Type 4X Enclosure (valve plug)
• IP66/68 NEMA Type 4X/6P Enclosure (cable)
a = 300 m/s² = 30 g, 3 planes x 2 directions x 3 shocks x 18 ms,
as per test Ea, prEN 60068-2-27:2007
a(RMS) = 50 m/s², ASD = 1.25 (m/s²)²/Hz, f = 5 to 2000 Hz, t = 3 x 2 h,
as per test Fh, EN 60068-2-64:2008
Electromagnetic compatibility in accordance with all relevant requirements of the EN 61326 series
and NAMUR recommendation EMC (NE21). For details, refer to the EC Declaration of Conformity.
The EC Declaration of Conformity is available in the Download Area of the Endress+Hauser website:
www.endress.com:
• Select your country from the menu bar
• In the menu bar, click Download
• Enter product root FTL31
• In the search area, select approvals and certificates
• Click "Start search" and select the desired document
2-wire AC/DC
• AC mode: the device has reverse polarity protection.
• DC mode: in the event of reverse polarity the maximum safety mode is always detected. Check the
wiring and perform a function check before commissioning. The device is not damaged in the
event of reverse polarity.
3-wire DC-PNP
Integrated. In the event of reverse polarity, the device is deactivated automatically.
2-wire AC/DC
During switching the sensor checks whether a load, e.g. relay or contactor, is present (load check). If
an error occurs, the sensor is not damaged.
Smart monitoring: normal operation is resumed once the error is fixed.
3-wire DC-PNP
Overload protection/short-circuit protection at I > 250 mA; the sensor is not destroyed.
Smart monitoring: check for overload in intervals of approx. 1.5 s; normal operation is resumed once
the overload/short-circuit is fixed.
Liquiphant FTL31
Endress+Hauser