Level measurement

92 Continuous level measurement in liquids

4. Instrument selection within the measuring principle

Hydrostatics – process industry

Waterpilot FMX11/FMX21

Deltapilot FMB51/52/53

Deltabar PMD55B

Technical data • Process pressure

100mbar to 20bar 0.15 to 290psi –10 to +70°C/ +14 to +158°F ±0.2% (0.1% optional) Mounting clamp, cable mounting screw 316L, Al 2 O 3 , FKM, EPDM, PE, FEP, PUR — Ceramics

100mbar to 10bar/ 0.07 to 150psi –10 to +85°C/ +14 to +185°F ±0.2% (0.1% optional)

30mbar to 40bar/ 0.45 to 600psi –40 to +110°C/ –40 to +230°F ±0.075% (0.055% optional)

• Process temperature

C

•Accuracy

• Process connection

Thread, flange

• Wetted parts

316L, Alloy, PE, FEP

316L, Alloy

— Contite, condensate-proof, water-tight, metal welded TI00437P

— Metal welded

• Gastight feedthrough • Measuring cell

• Technical Information Applications Horizontal storage tank cyl.

TI00351P/TI00431P

TI01510P

– – – – – O – + +

+ + O O – – – + +

O O + – + – O – –

Vertical storage tank

Buffer tank

Recipient tank Process tank

Stilling well

Bypass

Pump shaft

Channel measurement

Application limits

• Pressurized tanks

• Pressurized tanks • FMB51: Rope variant FMB52: Rod variant

• Impulse-piping required • If pressurized, possibly use Deltabar FMD71/FMD72

electronic dp. Observe ratio head pressure to hydrostatic pressure

+ = recommended

O = restricted (observe limits)

– = not recommended