Liquiphant FTL51B Commissioning
Endress+Hauser 37
Technical data
• Approval: intrinsically safe Ex ia, IS or ec/ic
• NAMUR electronics (electronic insert FEL68):
For energy-related reasons, the Bluetooth module VU121 requires a special battery
when operated with the 2-wire NAMUR electronics. The service life of the Bluetooth
module without replacing the battery is at least 5 years with a maximum of 60
downloads of complete datasets (at ambient temperatures between
10 to 40 °C (50 to 104 °F)).
• Maximum free-field range 50 m (165 ft)
• Operation radius with intervisibility 10 m (33 ft) around the device
For documentation on radio approvals, see the Endress+Hauser website:
www.endress.com → Downloads.
7.2 LED module VU120 (optional)
The LED module lights up very brightly and can be easily identified from a distance. It can
be connected to the following electronic inserts: FEL62, FEL64, FEL64 DC
Depending on either the MAX/MIN setting, the sensor status can be identified from the
LEDs; displayed in the colors green, yellow and red.
The three colors of the LEDs flash one after another as a chaser light during the functional
test.
7.2.1 Configuration and sensor status
LED shows a green light
• MAX, sensor status: Not covered
• MIN, sensor status: Covered
LED shows a yellow light
• MAX, sensor status: Covered
• MIN, sensor status: Not covered
LED shows a red light
Alarm
LED flashes red
• Warning
• FEL62 overload/short-circuit or no communication
The three colors of the LEDs flash one after another as a chaser light during the functional
test.
8 Commissioning
8.1 Function check
Before commissioning the measuring point, check whether the post-installation and post-
connection checks have been performed:
• "Post-installation check" checklist → 16
• "Post-connection check" checklist → 31
To Next Page
Loading...
