Level measurement

24 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

FMR54

FMR62B

FMU4x

Advantages

• Non-contact and unaffected by head pressures • Universally useable due to flexible measuring range • Also with ball valve •Remote access via Bluetooth® • Heartbeat Technology 2-wire (HART®, PA, FF), 4-wire HART® ±2mm/±0.08" –196 to +450°C/–321 to +842°F –1 to +160bar/–14.5 to +2,320psi Threads, flanges (DIN, ANSI, JIS), hygienic connections 70m/229ft

•High resistance • Self-cleaning effect of sensors • Integrated alarm/point level relay • Unaffected by stilling well material

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) 25m/82ft

•Maximum

measuring range

Application limits

• Large changes in the stilling well cross section • Arrangement, size of equalizing openings • Plastic stilling wells

guided radar, capacitance guided radar, capacitance ultrasonics, guided radar float FMR54

•Vapor pressure radar

• DC starting at 1.4 • Stilling well > 12 m

Please note: Radar continued on Page 34

Please note: Ultrasonics continued on Page 74