HBM PW4MC3/300g: capacity, signal and replacement checks
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HBM PW4MC3/300g
PW4MC3/300g is the 0.3 kg capacity version of the HBM PW4MC3 load cell. Its data sheet lists a nominal sensitivity of 1.0 mV/V for this capacity. Keep the 300g designation on the order; a 500g unit changes the weighing system specification.
Match capacity and the weighing electronics
| Item | What to check |
|---|---|
| Maximum capacity | 0.300 kg |
| Accuracy class | C3 under the data sheet conditions |
| Nominal sensitivity | 1.0 mV/V, tolerance ±0.1 mV/V |
| Reference excitation | 5 V |
| Protection | IP65; review installation and environmental conditions. |
Source: HBM PW4MC3 data sheet B02224. Match the document to the full model and revision on your unit.
A mV/V load-cell output needs compatible weighing electronics. For illustration, a nominal 1.0 mV/V sensitivity at 5 V excitation corresponds to approximately 5 mV at rated load before calibration. This arithmetic example describes the signal scale, not a test result for an offered unit.
Account for the complete load on the cell
Include the platform, fixture and product when the equipment designer checks the load case. Record the existing mounting dimensions, loading direction and clearance around the cell. A capacity marked on a load cell does not by itself define the usable product-weight range of the assembled scale.
The plain PW4MC3 designation should not be given the overload-protection claims of a PW4MOP variant. Ask for the full marking if an alternative is proposed.
Keep system accuracy separate from component ratings
The assembled instrument needs calibration and verification in its installed arrangement. The data-sheet accuracy class and minimum verification interval do not establish the display resolution or accuracy of an arbitrary scale. Ask the equipment owner which acceptance criteria the weighing process requires.
For a replacement, provide the amplifier or indicator model, wiring drawing and calibration procedure. Have the cable length and any connector requirement stated on the quotation so the installation can be planned.
Request the exact 300g version
- Full cell label: PW4MC3 and 300g capacity.
- Quantity, cable requirements and whether existing connectors will be reused.
- Actual-unit photos and condition; state if calibration documentation is required.
- Confirmation that a 500g or PW4MOP variant will not be substituted without review.
Check the listed part
Review the PW4MC3/300g listing and provide the indicator model, cable requirement and full load-cell label.
Manufacturer references
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