2-Wire Density (Electronic Insert Fel60D) For Density Measurement - Endress+Hauser Liquiphant FTL51B Operating Instructions Manual

Electrical connection
32
Behavior of the switch output and signalling
MAX
MIN
MAX DIP switch for setting the MAX safety mode →  37
MIN DIP switch for setting the MIN safety mode →  37
RD LED, red, for alarm
YE LED, yellow, switch status
GN LED, green, operational status (device on)
If the 2-wire NAMUR electronics unit is operated with the option of a Bluetooth module
and Heartbeat technology, the Bluetooth module must be operated with a special battery
due to the limited energy of the NAMUR interface. More information on the battery is
available in the "Accessories" section.
Functional test
→  38
6.2.7 2-wire density (electronic insert FEL60D) for density
measurement
• This electronic insert cannot be installed in devices that were originally used as a point
level switch.
• For connection to the Density Computer FML621
Supply voltage
As per IEC 61158-2: 24 V DC +- 15%, only suitable for connection to the Density
Computer FML621
In accordance with IEC/EN61010 a separate circuit breaker must be provided for the
device.
Power consumption
< 160 mW
Current consumption
As per IEC 61158-2 in mA
RD YE GN
2.2...3.8 mA
L1 2
0.4...1.0 mA
L1 2
2.2...3.8 mA
L1 2
0.4...1.0 mA
L1 2
< 1.0 mA
L1 2
Liquiphant FTL51B
1
1
1
1
1
A0037694
Endress+Hauser