Connecting The Cables - Endress+Hauser Liquiphant FTL51B Density Operating Instructions Manual

Liquiphant FTL51B Density
Endress+Hauser
 18 Density measurement with Density Computer FML621
1 Liquiphant Density → Pulse output
2 Temperature sensor, e.g. 4 to 20 mA output
3 Pressure transmitter 4 to 20 mA output required for changes in pressure >6 bar
4 Liquiphant Density Computer FML621 with display and operating unit
5 PLC
The measurement can be affected by:
• air bubbles at the sensor
• unit not fully covered by the medium
• solid media buildup on the sensor
• high flow velocity in pipes
• severe turbulence in the pipe due to inlet and outlet runs that are too short
• corrosion of the fork
• non-Newtonian (not purely viscous) behavior of media
6.3.2

Connecting the cables

Required tools
• Flat-blade screwdriver (0.6 mm x 3.5 mm) for terminals
• Suitable tool with width across flats AF24/25 (8 Nm (5.9 lbf ft)) for M20 cable gland
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Electrical connection
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