User Manual

DEVICE DESCRIPTION 2
19
OPTIWAVE 7400-24 C
www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en
2.2 Device description
This device is a 24 GHz FMCW-radar level transmitter. It is a non-contact technology and is 2-
wire loop-powered. It is designed to measure the distance, level, mass, volume and reflectivity of
liquids, pastes and slurries.
Radar level transmitters use an antenna to emit a signal to the surface of the measured product.
The device has many antennas available. Thus, it can measure most products even in difficult
conditions. Also refer to
Technical data on page 90.
If it is ordered with the applicable options, it can be certified for use in hazardous areas.
These output options are available:
• 1 output: 4...20 mA (HART)
• 2-wire FOUNDATION™ Fieldbus output
• 2-wire PROFIBUS PA output
These accessories are available:
• Stainless steel weather protection.
• RS232 / HART
®
converter (VIATOR).
• USB / HART
®
converter.
INFORMATION!
For more data on accessories, refer to Accessories on page 134
.