Operation Options; Overview Of Operation Options; Operating Concept; Operation At Electronic Insert - Endress+Hauser Liquiphant FTL51B Operating Instructions Manual

Liquiphant FTL51B
Endress+Hauser
7

Operation options

7.1

Overview of operation options

7.1.1

Operating concept

• Operation with button and DIP switches on the electronic insert →  37
• Display with optional Bluetooth module and SmartBlue (app) via Bluetooth® wireless
technology →  40
• Switch state and operating status indicated by optional LED module (visible from
outside)
• For plastic housing and aluminum housing (standard and Ex d) in conjunction with the
DC-PNP and relay electronics
• Ordering information: Product Configurator, order code for "Display; operation" option
"B"
7.1.2

Operation at electronic insert

WARNING
L
Housing xx
‣
In the Ex d area, wait for at least 17 minutes before opening the electronics
compartment!
MAX/MIN safety mode
A
MAX
A MAX (maximum safety mode)
B MIN (minimum safety mode)
• Minimum/maximum quiescent current safety can be switched at the electronic insert
• MAX = maximum safety:
The output switches to demand mode when the tuning fork is covered, use for overfill
prevention for example
• MIN = minimum safety:
The output switches to demand mode when the tuning fork is uncovered, use to prevent
pumps from running dry, for example
Density switchover
A
A 1 l (1 dm³) = min 0.7 kg; (1 imp.gal = min. 7.0 lbs); (1 US. gal = min. 5.9 lbs)
B 1 l ( 1 dm³) = min 0.5 to 0.7 kg; (1 imp.gal = 5.0 to 0.7 lbs); (1 US. gal = 4.2 to 5.9 lbs), e.g. propane
Factory setting 0.7. Only select density 0.5 for liquids with a density < 0.7.
B
B
ρ>0.7
Operation options
MIN
A0033470
ρ>0.5
A0033471
37