HRL Series – Anchor Load Cell
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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[post_content] => Magtrol’s MD-01 Transducers are designed for measuring static and dynamic compression loads. Using strain gauge technology, deformation of the sensing element provides an electrical signal proportional to the load or force being measured.
With quick single-screw mounting, this transducer can be easily integrated into wide array of applications.
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[post_content] => The Magtrol Load Monitoring Unit is specially designed for strain gauge transducer applications. Specifically developed for use with Magtrol load measuring pins and load-force weight sensors, the LMU Series provides excitation current and amplifies the output signal of full-bridge strain gauges.
Load Monitoring Units are flexible and fully configurable due to DIP-switches and jumpers which allow the unit to be easily installed - no solder connections are required. The level detectors and the outputs can be dedicated either to the full-bridge input, to the voltage input, or to the sum of both. A built-in auto-diagnostic system detects any short circuits or signal line failures, thus allowing the system to be used in applications where safety is important. If a problem is detected, both relays are deactivated and the output voltage (respective current) changes to > 10 V DC and > 20 mA.
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[post_content] => The ZS load cells are made entirely of a special stainless steel and are, therefore, also suitable as weighing plants under difficult environmental conditions. The sensor element itself is fabricated as a transverse body. A metal diaphragm, which is welded on to the deformation zone protects the sensitive strain gauges from environmental influences. As a result constant measuring characteristics
are ensured. Compensation and adjustment elements, which are required for the exact setting of the guaranteed technical parameters, are positioned in a special chamber, which is also sealed. The load cell can be subjected to traction or compression force. An assembly kit, which can be ordered separately, facilitates the unproblematic and safe installation of the load cell in the weighing unit. As a standard, the load cells are supplied with a 3 m long connection cable. Of course, these load cells, calibrated in Newton (N), can also be supplied as high-precision transducers up to the accuracy class 0.05%.
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