PACEline CFW

PACEline CFW - Piezoelectric Force Washer with Innovative Design

The CFW piezoelectric force washer - the latest member of HBM's PACEline family - ensures reliable results in assembly and testing. Thanks to its compact Donut Load Cell design, CFW force washer can be used in many different applications.

CFW piezoelectric force washers are now available with nominal (rated) forces of 330 and 700 kN. The size of the new force washers also enables use in massive constructions. In addition, HBM also provides mounting aids for CFW with immediate effect. The CPS sets of pre-stressing elements facilitate installation of the force washers.

PACEline CFW is a very reliable sensor ensuring reliable test results even in adverse industrial environments. CFW is the first piezoelectric force washer that, irrespective of its small size, provides an efficient plug protection* - an important prerequisite for smooth long-term use.

PACEline CFW piezoelectric force washers not only provide safety and reliability. Their innovative design makes sure that you can trust in your production monitoring data with three time higher reliability.

  • Enhanced linearity compared to conventional force washers - thanks to the special measuring body design with split diaphragm
  • Perfect test results even if forces are not applied centrically
  • Automatic centering of the sensor through its external and internal diameter without producing any hysteresis errors.

PACEline CFW is presently available with nominal (rated) forces of 20 kN, 50 kN, 100 kN, 140 kN, 190 kN, 330 kN and 700 kN. Since the output signal is not dependent on the measuring range but on the force applied, CFW force sensors withstand very high overloads. Hence, CFW allows for over-dimensioning without loss of accuracy and resolution.

Cross section through the CFW force washer: The symmetrical design ensures excellent linearity.

* not available for the 20kN version

Mounting aid for Force washer

Piezoelectric force washers require pre-stressing. The new CPS sets of pre-stressing elements facilitate easy and permanent pre-stressing. They are made from stainless steel and offer the required hardness as well as the bolt pitches selected to match the typical pre-stressing force.

A set of pre-stressing elements includes a bolt, a washer and a nut. The figure below gives a schematic representation of the setup.

Accessories and Cables

Accessories

CSB4/1 summing box

Simplify the installation of piezoelectric sensors. The CSB4/1 summing box enables up to four piezoelectric sensors to be connected in parallel to an amplifier input. It can be fastened with screws and features electrical isolation of enclosure and sensor shielding.

CSB4/1 - Data sheet

CSB4/1 - Operating manual

Cables

All cables for piezoelectric transducers from HBM are particularly noise-free and can be used over the sensors' entire temperature range.

The main specifications at a glance:

  • Temperature range: -55 to +200 degrees C
  • Shielding: Semi-conducting intermediate layer, silver-coated copper braid
  • Sheath: FPM
  • Triboelectric noise: Maximum 1 pC
  • Insulation at 20°C: 1014 ohms
  • Impedance: 50 ± 5 ohms
  • Outside diameter: 1.9 mm
  • Bending radius: 10 mm
  • Insulator: PTFE

 

Our range of accessories is constantly being extended and currently comprises the following cables:

1-CCO

  • Adapter for connecting two cables with 10-32UNF connector
  • Sockets at both ends
  • For extending piezoelectric cables

 

 

1-KAB143

  • Cable length: 2, 3 or 7 m
  • 10-32 UNF plug on both sides
  • Suitable for all sensors with plug, CSB summing box and CMA amplifier

1-KAB145

  • Cable length: 0,2 or 3 m
  • 10-32 UNF plug on both sides, however, compared to 1-KAB143 with massive plug protection
  • O-ring seal at sensor for extremely harsh conditions of use
  • Suitable for all sensors with plug, CSB summing box and CMA amplifier

1-KAB176

  • Cable length: 2 or 3 m
  • One side with type 10-32 UNF plug, other cable side with BNC plug
  • For connection of all sensors with plug, CSB summing box and CMD600 digital charge amplifier

Product Literature

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Product Literature

PACEline CFW

Data Sheets

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Mounting instructions

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Accessories

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Brochures

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Certificates

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Candid data sheets: We keep our promises.

Precision in series: This also applies to the accuracy of the values specified in our data sheets. Ideal conditions can often be theoretically attained based on the values given, but our data sheets focus on realistic standard assumptions - such as those likely to be encountered in your application. Therefore, please consider this when comparing our data sheets with those of other manufacturers.

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Examples of piezoelectric measurement chains

To connect our piezoelectric products in a measuring chain proceed as follows:

Key Features

  • Symmetrical design for higher stability
  • Nominal (rated) forces: 20 kN, 50 kN, 100 kN, 140 kN, 190 kN, 330 kN and 700 kN
  • High cut-off frequency
  • Robust charge cable connector

Brochure

PACEline Brochure (pdf)

Order Numbers

1-CFW/20KN
1-CFW/50KN
1-CFW/100KN
1-CFW/140KN
1-CFW/190KN
1-CFW/330KN
1-CFW/700KN