Endress Hauser Hydrostatic Level Measurement Waterpilot FMX21 Series

The Hydrostatic Level Measurement for Industrial automation

The Endress Hauser Waterpilot FMX21 series transmitter with capacitive, oil-free ceramic measuring cell is typically used in the process and environmental applications for hydrostatic level measurement. With HART output, the measuring ranges can be freely adjusted and a density-compensated level measurement can be activated. It is certified for drinking water and offers integrated temperature measurement. Versions for applications in wastewaters and sludges or usage in salt water are also available.

Main Features

• Robust overload-resistant high purity ceramic sensor (99.9% Al₂O₃)
• Flexible scaling of 4 to 20mA with superimposed HART 6.0 output
• Highest level accuracy using temperature compensated density correction
• Simultaneous measurement of level and temperature with optionally integrated Pt100 temperature sensor
• Extensive range of accessories provides complete measuring point solutions
• Climate proofed sensor thanks to completely potted electronics and 2-filter pressure compensation system
• Small outer diameter of 22mm (0.87") version suitable for drinking water applications and for use in bore holes and wells with small diameters

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An Eye-Opening Guide to Pressure sensor Types

Measuring principle

Hydrostatic pressure

Characteristic

Compact probe with ceramic cell for hydrostatic level measurement,

Diameter = 22 mm: General applications, fresh water

Diameter = 42 mm: Waste water applications

Diameter = 29 mm: Salt water applications

Supply voltage

10.5 ...35V DC

Reference Accuracy

0.2%

0.1% (optional)

Long term stability

0.1% of URL/year

Process temperature

-10°C...70°C

(14°F...158°F)

Diameter 29 mm (1.14"): 0°C...50°C

(32°F...122°F)

Ambient temperature

-10°C...70°C

(14°F...158°F)

Diameter 29 mm (1.14"):

0°C...50°C

(32°F...122°F)

Measuring cell

100mbar...20bar

(1.5psi...300psi)

Process connection

Suspension clamp

Cable mounting screws

Communication

4...20 mA

4...20 mA HART

Certificates / Approvals

ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI, UK Ex

Marine approvals

GL/ ABS/ BV/ DNV/ LR

Drinking water approvals

NSF/ KTW/ ACS

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 Endress Hauser Waterpilot FMX21 series datasheet Catalog  Endress Hauser Waterpilot FMX21 series operating instruction Catalog