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METRAVON MV-LC0129 is an enclosed parallel-beam load cell for belt and platform weighing assemblies in the 5-200 kg family. The round housing contains the measuring structure; load enters through a small central upper contact above a square mounting base. Its combined construction does not mean that it measures several force axes or supplies a complete conveyor weighing system.
Match the enclosed parallel-beam load cell to the central load contact
The reference square base is 80 by 80 mm, with four 6.5 mm through-holes on 65 by 65 mm centres. The round body diameter is 76 mm and overall height is 58.5 mm. The upper contact is 12 mm in diameter with an SR15 dome. Design the mating part to load that contact while keeping other moving parts clear of the housing and base. The dome profile is not a specified angular travel or permission to press against an arbitrary surface.
| Item | Value | Selection notes |
|---|---|---|
| Family range | 5-200 kg | Review tare, smallest useful load change and peak events. |
| Base / hole centres | 80 x 80 / 65 x 65 mm | Four through-holes are 6.5 mm in diameter. |
| Body diameter / total height | 76 / 58.5 mm | Check the mating contact and surrounding moving structure. |
| Upper contact | 12 mm diameter / SR15 | Apply compression at the designated contact. |
| Bridge output / excitation | 2.0 mV/V / 5-12 V DC | Rated sensitivity tolerance is +/-0.05 mV/V. |
| Hysteresis / repeatability | +/-0.05% FS each | Verify the assembled system at its required operating points. |
A belt scale needs more than the force signal
For a conveyor project, supply the weighbridge arrangement, belt width, speed range, supported tare and expected material loading. Force measurement must be combined with the relevant speed and weighing geometry to determine mass flow; the load cell alone does not output tonnes per hour. Belt tracking, tension and idler condition can affect the force reaching the weighing assembly. Establish how the empty belt and a suitable material reference will be checked before attributing an unexplained flow error to the sensor.
Check the useful force interval at the lower end of the family
A 200 kg rating is not automatically preferable for a task using only a small fraction of that load. Include fixture tare, the smallest change that must be resolved and foreseeable peaks in the assessment. At low loads, cable pull and contact with a cover can be significant relative to the measured change. Route the cable in its final position before taring, and test the actual low-load decisions as well as a higher reference point.
Use the stated enclosure and bridge ratings
Protection is IP65, despite the enclosed metal appearance. Working temperature is -20 to +70 deg C. The bridge output is 2.0 +/-0.05 mV/V, with 5-12 V DC excitation, 380 +/-30 ohms input resistance and 350 +/-5 ohms output resistance. A 3 m, 5 mm diameter cable is listed. Specify the bridge reader or transmitter with the installation; the housing does not establish an integrated digital output. Nonlinearity is +/-0.05-0.1% FS, not a complete belt-scale accuracy specification.
Housing appearance and conveyor measurement
Q1. Does the round housing indicate a high-capacity column sensor?
No. The documented measuring structure is parallel beam and the family range is 5-200 kg. Use the actual capacity and central-contact drawing when choosing it. A similar exterior shape is not evidence of the force capacity or mounting geometry of another product.
Q2. Can this sensor alone provide a conveyor mass-flow reading?
It provides a bridge signal associated with the applied force. A belt-weighing system also needs the relevant speed measurement, mechanical arrangement and processing, followed by system checks. Confirm those components and the material-reference procedure in the project scope.
Q3. Can the enclosure be immersed for cleaning?
The specified housing rating is IP65; no immersion qualification follows from the round cover or metal finish. Submit the cleaning exposure and connector arrangement for review. Protect the termination and do not replace a required washdown assessment with an assumption based on appearance.
