For MSI-4300 Porta-Weigh Plus Crane Scales

Q: Can I increase the lifting capacity of my scale by recalibrating it to a higher capacity?

A: No. Lifting capacity is specific to the load cell design. Although you can change the capacity setting on the scale electronically, its mechanical structure is still designed for a specific, maximum lifting capacity.

Q: What should I do if my scale does not turn on?

A: Check your power source. Make sure it is connected and that you have the required power to turn it on. Check the fuse. Every MSI product comes equipped with a fuse on the main power line, call the factory if you cannot find it.

Q: What kind of yearly maintenance does the factory recommend?

A: 1) All O-rings and seals should be checked and replaced if necessary.

2) The load train should be inspected and lubricated.

3) Check the calibration to determine if it needs to be recalibrated.

Q: Why does my scale flash an overload message with loads less than capacity?

A: Check to see if you are weighing in net mode. If so, you tared weight to zero the scale, and the capacity of the scale is reduced by that tare amount. The scale load cell is intended to lift only a specific amount of gross (actual) weight. Even though the scale reads below capacity in net mode, it may exceed the scale's actual lifting capacity.

Q: My Porta-Weigh Plus seems to drain batteries abnormally fast, what can I do to increase battery life?

A: 1) How are you using the scale? Remember that using the backlight and a high contrast setting will reduce battery life, while utilization of the auto off feature increases battery life.

2) Check the connections in the battery tube.

Q: Why are my weight readings unstable?

A: 1) Adjust your filtering setting to high. This slows the display update rate of the scale while advanced software smooths out the weight readings.

2) See the MSI crane safety manual to ensure proper loading procedures.

3) You may need to have the scale's load train inspected.

Crane Scale Product Directory
MSI-4300 Product Information
MSI-4300 Specifications
MSI-4300/5 User Guide
MSI-4300/7 User Guide
MSI-4300 Parts List (Under Construction)
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Crane Scale Safety Manual