Output Signal; Ex Connection Data; Environment; Ambient Temperature Range - Endress+Hauser Liquiphant FTL64 Operating Instructions Manual

Liquiphant FTL64
Endress+Hauser
14.2.2

Output signal

Switch output
The following default switching delay times can be ordered for electronic inserts FEL61,
FEL62, FEL64, FEL64DC, FEL67 and FEL68:
• 0.5 s when the tuning fork is covered and 1.0 s when it is uncovered (factory setting)
• 0.25 s when the tuning fork is covered and 0.25 s when it is uncovered (fastest
configuration)
• 1.5 s when the tuning fork is covered and 1.5 s when it is uncovered
• 5.0 s when the tuning fork is covered and 5.0 s when it is uncovered
COM interface
For connecting to modules VU120 or VU121 (no modifying effect)
Bluetooth® wireless technology (optional)
The device has a Bluetooth® wireless technology interface. Device data and diagnostic data
can be read out using the free "SmartBlue" app.
14.2.3

Ex connection data

See safety instructions (XA): All data relating to explosion protection are provided in
separate Ex documentation and are available from the Downloads Area of the
Endress+Hauser-website. The Ex documentation is supplied as standard with all Ex
devices.
14.3

Environment

14.3.1

Ambient temperature range

WARNING
L
Permitted connection voltage exceeded!
‣
For electrical safety reasons, the maximum connection voltage for all electronic inserts
at ambient temperatures below –40 °C (–40 °F) is limited to a maximum of 35 V DC.
–40 to +70 °C (–40 to +158 °F)
Optionally available:
• –50 °C (–58 °F)
• –60 °C (–76 °F)
The minimum permitted ambient temperature of the plastic housing is limited to
–20 °C (–4 °F); ' i ndoor use' applies for North America.
Low-temperature electronic inserts are marked LT.
Technical data
57