Process Control Instruments, Field Devices and Industrial Automation
SKU# (160)

ENDRESS+HAUSER  FMX21-AA111CGB20A




ENDRESS+HAUSER FMX21-AA111CGB20A (1)
  • Overview
  • Benefits
  • Specs
  • Documents

EH Waterpilot FMX21 Hydrostatic Level probe with ceramic measuring cell. Reliable and robust. Automatic density compensation. 100 mbar to 20 bar measuring range. 10.5 to 35 VDC. Suspension clamp process connections. 4-20mA and HART communications. ATEX, FM, CSA, CSA C/US and IECEx Approvals.

Part# with Options:        FMX21-AA111CGB20A
Price with Options:        Please Email us your request for quote   

Options:    

Approval
(1) Approval for EH Waterpilot FMX21
Output
(2) Output for EH Waterpilot FMX21
Probe Tube
(3) Probe Tube for EH Waterpilot FMX21
Sensor Range
(4) Sensor Range for EH Waterpilot FMX21
Reference Accuracy
(5) Reference Accuracy for EH Waterpilot FMX21
Calibration & Unit
(6) Calibration & Unit for EH Waterpilot FMX21
Probe Connection
(7) Probe Connection for EH Waterpilot FMX21
Seal
(8) Seal for EH Waterpilot FMX21

  Availability 5 Days  ]

Application

The Waterpilot FMX21 is a pressure sensor for hydrostatic level measurement.

Endress+Hauser offers three different versions of the device:

  • FMX21 with a stainless steel housing, external diameter of 22 mm (0.87 in): This version is excellently suited to drinking water applications and for use in bore holes and wells with small diameters
  • FMX21 with a stainless steel housing, external diameter of 42 mm (1.65 in): Heavy-duty version and easy to clean thanks to flush-mounted process isolating diaphragm, ideally suited to wastewater and wastewater treatment plants
  • FMX21 with plastic insulation, external diameter of 29 mm (1.14 in): Robust version for use in salt water and excellently suited to applications on ships (e.g. ballast water tanks)
Your benefits
  • High resistance to overload
  • High-precision, robust ceramic measuring cell with long-term stability
  • Climate proofed sensor thanks to completely potted electronics and 2-filter pressure compensation system
  • Simultaneous measurement of level and temperature with optionally integrated Pt100 temperature sensor
  • Accuracy
    • Standard reference accuracy 0.2 %
    • PLATINUM version 0.1 %
  • Automatic density compensation to increase accuracy
  • Usage in drinking water: KTW, NSF, ACS
  • Approvals: ATEX, FM, CSA
  • Marine approvals: GL, ABS, BV, DNV
  • Extensive range of accessories provides complete measuring point solutions
Measuring Principle

The ceramic measuring cell is a dry measuring cell i.e. the pressure acts directly on the robust, ceramic process isolating diaphragm of the Waterpilot FMX21. Changes in air pressure are guided via a pressure compensation tube through the extension cable to the rear of the ceramic process isolating diaphragm and are compensated for. A pressure-dependent change in capacitance, caused by the movement of the process isolating diaphragm, is measured at the electrodes of the ceramic carrier. The electronics unit then converts this to a signal that is proportional to the pressure and linear to the level.

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 -10C...70C
(14F...158F)
Diameter 29 mm (1.14"):
0C...50C
(32F...122F)
Process temperature -10C...70C
(14F...158F)
Diameter 29 mm (1.14"): 0C...50C
(32F...122F)
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
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


B2B Checkout Options: Designated Carrier and Tax-Exempt purchase
Payment Options: Credit Card, Credit Card Over the Phone, PAYPAL, Wire Transfer, Check and Money Order

Checkout with Paypal

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