20
21
-0
6
14
Level Radar LCR20
Output
6
Output
6.1
Output Signal
Output signal 4 to 20 mA
An 4 to 20 mA interface is used for measured value output and to power to the device.
6.2
Digital Output HART
®
•
Signal encoding; FSK ±0.5 mA over current signal
•
Data transmission rate; 1200 Bit/s
Bluetooth
®
Wireless Technology (available as an optional extra)
The device has a
Bluetooth
®
wireless technology interface and can be operated
and configured via this interface using the P+F Level app.
•
The range under reference conditions is 25 m (82 foot).
•
Incorrect operation by unauthorized persons is prevented by means of encrypted
communication and password encryption.
•
The
Bluetooth
®
wireless technology interface can be deactivated.
6.3
Signal on Alarm
Depending on the interface, failure information is displayed as follows:
•
Current output
Alarm current: 22.5 mA (in accordance with NAMUR recommendation NE 43)
•
Operating tool via digital communication (HART) or P+F Level (app)
•
Status signal (as per NAMUR Recommendation NE 107)
•
Plain text display with remedial action
6.4
Linearization
The linearization function of the device allows the conversion of the measured value into any
unit of length, weight, flow or volume. When operating via PACT
ware and
linearization tables
for calculating the volume are preprogrammed in the vessels.
Pre-programmed linearization curves
•
Horizontal cylindrical tank
•
Sphere
•
Tank with pyramid bottom
•
Tank with conical bottom
•
Tank with flat bottom
Other linearization tables of up to 32 value pairs can be entered manually.
