HRL Series – Anchor Load Cell

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Product Description

HRL Series load cells consist of a high quality stainless steel. This compact load cell is designed specifically for heavy duty use on construction sites and include load cells with a range of 600 … 3 000 kN. Special designs are available upon request. The attached shielded cable includes a water-proof connector with cap. Versions without the connector are available as an option. Cable lengths are customizable according to the installation requirements; for further information please contact us. The data collected from the strain gauge is proportional to the applied force. The signal is transmitted to the monitoring unit for amplification.

Features

  • Monitors anchor forces and other force measurements
  • Range: 600 … 3 000 kN
  • Admissible overload: 120 % of the nominal load
  • Maximum load: 300 % of the nominal load
  • Suitable for heavy-duty use on construction sites
  • Easy to assemble
  • Protection class: IP 66
  • Special designs available upon request
  • Optional: Lightning and Surge Protection

Specifications

MODEL HRL-4-1000 HRL-7-1500 HRL-12-2000 HRL-19-3000
MECHANICAL CHARACTERISTICS
Number of strands 4 7 12 19
Nominal Load 600 kN 1 000 kN 1 700 kN 2 700 kN
Admissible Overload (% of NL) 120 %
Overload at Rupture (% of NL) 250 %
Accuracy Class 1 % (of NL) a)
ELECTRICAL CHARACTERISTICS
Nominal Sensitivity 1.98 mV/V ± 1% 2.2 mV/V ± 1% 1.8 mV/V ± 1% 1.91 mV/V ± 1%
Input Resistance 700 - 1100 Ω
Output Resistance 700 Ω
Nominal Supply Voltage of Strain Bridge 5 V to 10 V
Combined Error (Non-linearity + Hysteresis) 1 %
ENVIRONMENT & ELECTRICAL CONNECTION
Reference Temperature +23 °C
Operating Temperature - 30 °C to + 70 °C
Temperature Influence: On Zero ≤ ± 0.01 % / K
Temperature Influence: On Sensitivity ≤ ± 0.01 % / K
Protection Class IP 66
Option: Lightning and Surge Protection up to 20 kA (8 / 20 μs)
Connection Integrated cable with LEMO connector
(several cable lengths are available on request)

a) Accuracy depends on the environment, the assembly and the quality of the supports.

Applications

Magtrol HRL Series Load Cells can be used to monitor anchor forces in classical and pre-stressed structures on sites (civil engineering, tunnels…) as well as a range of other static or dynamic measurements, in harsh, tropical, offshore, marine and harbour environments.

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The MBB-02 is entirely made of aluminum to combine lightness and stability of measurement. It has a nominal capacity range of 0.01 N to 5 N and uses semi-conductor strain gauges. Having a larger gauge factor than foil types, semiconductor strain gauges allow the measurement of very small strain. The sensor integrates a built-in overload protection offering up to 25 times security. Dedicated to laboratory applications, it is suitable for a temperature range of +15 °C to +25 °C. It can be easily connected to a PC or display unit through an external Wheatstone bridge amplifier. A version for Air Humidity compensation in ranges of 30 % to 60 % HR is also available. Applied force radially acts on  the sensors pin which can be independently positioned in 2 different locations, thus offering more operating flexibility. Special versions with various cable lengths and connector outputs are also available.
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Load-Force-Weight Systems

Magtrol Large Digital Displays are used with Load Monitoring Units (LMUs) or signal conditioners (AN Series), as part of a complete measurement system. Magtrol load measuring pins, which measure load and force to provide overload protection, are available for a wide range of Load-Force-Weight, and in various executions and accuracy classes. Combined, these products constitute an ideal safe measurement system for continuous overload monitoring.
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The specific design allows the use of a SG-01 sensor in harsh, tropical or harbor environments.
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