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METRAVON MV-LC0138 is a canister tension and compression load cell with internally threaded end connections. The documented family is 10-300 t, and the application description permits both loading directions. Its 1.5 mV/V signal and capacity-dependent mechanical interfaces must be checked together before replacing a different cylindrical force sensor.
Select the canister tension and compression load cell from the mating threads
The 10-30 t reference group has a 110 mm body diameter, 200 mm end-to-end dimension H and M40 x 3 connections. At 50-100 t these become 155 mm, 324 mm and M72 x 4. The 150-200 t group uses 200 mm, 420 mm and M110 x 6; 250-300 t uses 238 mm, 500 mm and M130 x 6. Check the mating members, engagement and installation access using the complete selected drawing.
| Item | Value | Selection notes |
|---|---|---|
| 10-30 t diameter / H | 110 / 200 mm | The internal end thread is M40 x 3. |
| 50-100 t diameter / H | 155 / 324 mm | Use the M72 x 4 mating-member drawing. |
| 150-200 t diameter / H | 200 / 420 mm | The connection changes to M110 x 6. |
| 250-300 t diameter / H | 238 / 500 mm | Confirm the M130 x 6 connection and assembly clearance. |
| Nominal rated output | 1.5 +/-0.05 mV/V | An existing 2 mV/V span must be reviewed and recalibrated. |
| Excitation / protection | 5-12 V DC / IP66 | Assess the complete field connection and site exposure. |
Review the frame before changing rated capacity
The surrounding structure and attachments still need to carry the proposed working load. Provide peak force in each direction, preload, reversals and the alignment arrangement; neither the canister shape nor an equal thread diameter proves compatibility. Include the space required by the side connection and tightening tools. Verify the final axial load path without using the sensing body or cable connection as an improvised reaction point during assembly.
Reconfigure the reader for the 1.5 mV/V bridge
Sensitivity is 1.5 +/-0.05 mV/V, input resistance 750 +/-30 ohms and output resistance 700 +/-5 ohms. Nominal rated signal at 10 V excitation is 15 mV, not the 20 mV of a 2 mV/V bridge. Check amplifier gain, input range and calibration adjustment before retaining the old channel settings. The specified excitation is 5-12 V DC, with a 3 m cable of 5 mm diameter; confirm the delivered connector and wiring scope.
Use the stated performance rather than the appearance of a high-force sensor
Nonlinearity is listed as +/-0.3-0.5% FS; hysteresis, repeatability and creep are each +/-0.3% FS. A large canister should not be assumed to have the error limits of a different force-testing model. Agree the permissible installed error and reference points, then verify both required load directions and unloaded return. No creep observation period is stated. Working temperature is -20 to +70 deg C and IP66 is listed for the housing.
Loading directions and heavy-fixture replacement
Q1. Can the sensor be specified for compression as well as tension?
The technical description permits both loading directions. Specify the intended forces and obtain the offered calibration scope. Acceptance must verify the required directions through the actual attachments, including the relevant reference points and unloaded return.
Q2. Can it replace another heavy-duty canister from the capacity number?
Compare both thread pitch and engagement, diameter, installed length, rated output and reader loading. The adjacent force frame also needs approval for the proposed load. Similar appearance and capacity do not establish a direct exchange.
Q3. Does the 150% overload entry establish repeated-load life?
No cycle-life or unrestricted overload duty is defined by that entry. Provide the normal force cycle and foreseeable abnormal peaks for review. Choose the working rating and protection arrangement without treating safe overload as an extended measuring range.
