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Endress+Hauser

Hydrostatic Level measurement Waterpilot FMX21

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Hydrostatic Level measurement Waterpilot FMX21 series
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Description

Application

The Waterpilot FMX21 transmitter, featuring a capacitive, oil-free ceramic measuring cell, is widely utilized in hydrostatic level measurement for both process and environmental applications. It includes HART output for adjustable measuring ranges and the option for density-compensated level measurement. The transmitter is certified for use with drinking water and includes integrated temperature measurement. Additionally, versions are available for wastewater, sludge, and saltwater applications.

Available in three versions: for drinking water, wastewater and sewage, and saltwater.

Process connections include suspension clamp and cable gland.

Operating temperature range: –10 to +70°C (14 to 158°F).

Measuring range: 0 to 20 bar / 200 m H2O (0 to 300 psi / 600 ft H2O).

Accuracy: ±0.2%, with a "Platinum" version offering ±0.1%.

Certified for international explosion protection, marine approvals, and drinking water.

 

 

 

 

Benefits

  • Durable, high-purity ceramic sensor (99.9% Al2O3) with strong resistance to overload.
  • Flexible 4 to 20 mA scaling with integrated HART 6.0 output.
  • Superior accuracy with temperature-compensated density correction.
  • Simultaneous measurement of level and temperature, with an optional integrated Pt100 temperature sensor.
  • A comprehensive range of accessories for complete measurement point solutions.
  • Climate-resistant sensor with fully potted electronics and a dual-filter pressure compensation system.
  • Compact 22 mm (0.87") outer diameter version, ideal for drinking water applications and for boreholes and wells with narrow diameters.

 

SPECIFICATIONS

Pressure Specifications

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

 

 

Continuous / Liquids Specifications

Measuring principle

 

 Hydrostatic

Characteristic / Application

 

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

 

Specialities

 

Automatic density compensation

Version w/o metal parts in contact to process

 

Supply / Communication

 

10.5 ...35 VDC

 
Accuracy

0.2%

0.1% (optional)

 

Long term stability

 

0.1% of URL/year

 

Ambient temperature

 

-10°C...70°C

(14°F...158°F)

Diameter 29 mm (1.14"):

0°C...50°C

(32°F...122°F)

 

Process temperature

 

-10°C...70°C

(14°F...158°F)

Diameter 29 mm (1.14"): 0°C...50°C

(32°F...122°F)

 

Pressure measuring range

 

100 mbar...20 bar

(1.5 psi...300 psi)

 

Main wetted parts

 

Diameter 22 mm and 42 mm: Seal, 316L, Ceramic

Diameter 29 mm: Seal, PPS, Polyolefin, Ceramic

Extension cable: PE, PUR, FEP

 

Process connection

 

Suspension clamp

Cable mounting screws

 

Max. measurement distance

 

200 m H2O

(656 ft H2O)

 

Communication

 

4...20 mA

4...20 mA HART

 

Certificates / Approvals

 

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

 

Marine approval

 

GL/ ABS/ BV/ DNV/ LR

 

Drinking water approvals

 

KTW/ NSF/ ACS

 

Options

 

Absolute measuring cell

Integrated temperature sensor Pt100, 4-wire

customer specific adjustment

customer specific cable marking

 

Application limits

 

Measuring cell: ceramics

 

 

Documents

You may want to read this product's catalog. If so, please click to view the Endress+Hauser Hydrostatic Level measurement Waterpilot FMX21 series datasheet.
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