Level measurement

18 Continuous level measurement in liquids

3. Selection of the measuring principle according to the application

Non-contact

B

Our proposal Radar Micropilot

Ultrasonics Prosonic

(separated)

(compact)

FMU90

FDU9x

FMU4x

FMR5x

FMR6xB

Advantages

• Non-contact and unaffected by head pressures

•High resistance • Self-cleaning effect of sensors • Integrated alarm/point level relay • Fast measuring frequency (4-wire)

• Universally useable due to •Flexible measuring range • Changing, highly viscous or •Remote access via Bluetooth® • Heartbeat Technology

aggressive media (100% PTFE)

Technical data • Connection •Accuracy • Process temperature • Process pressure • Process connection

2-/4-wire (HART®, DP) ±2mm/±0.08", +0.2% of the distance –40 to +105°C/–40 to +221°F +0.7 to +4bar/+10 to +58psi Threads, Tri-Clamp, flanges (DIN, ANSI, JIS)

2-wire (HART®, PA, FF, Ethernet-APL) ±1mm/±0.04" –196 to +450°C/–321 to +842°F –1 to +160bar/–14.5 to +2,320psi Threads, flanges (DIN, ANSI, JIS), hygienic connections 80m/262ft

25m/82ft

•Maximum

measuring range

Application limits

•Strong formation of foam •Many obstacles in the radar beam

guided radar, hydrostatics guided radar, capacitance, hydrostatics hydrostatics

•Strong formation of foam •Vapor pressure

guided radar, hydrostatics radar, guided radar, capacitance

•Many obstacles

guided radar, capacitance, hydrostatics

• Low DC value

Please note: Radar continued on Page 34

Please note: Ultrasonics continued on Page 74