strain gauge weight measurement

Strain gauge sensors give faster settling time and easier data logging compared to hydraulic systems. They don’t need a pressure gauge and hand pump on site, which means fewer things to leak or recalibrate mid-test. On the other hand, hydraulic cells can handle moisture and dirt with less worry about electrical failure. Kingmach often supplies both types, but many geotechnical contractors prefer strain gauge instruments when they want to automate data collection and reduce setup time.

Yes, with a summing box. You connect all the sensors to a junction box that adds the signals and gives you one total load reading. Kingmach provides summing cards that are matched to the impedance and sensitivity of your particular load cells so you don’t lose accuracy from mismatched excitation. We can also supply a multi-channel display that shows individual readings if you need to check an unbalanced leg.

If you overload within the safe overload rating (typically 150% of full capacity), the sensor goes back to normal without damage. Exceed the ultimate overload limit, and the metal element deforms permanently—then you need a repair or replacement. Kingmach builds in mechanical stops on many models to prevent accidental overloading during installation. We also stress-test to 200% briefly during calibration to catch any early failures. After a significant overload event, it’s smart to do a quick shunt calibration check or send the unit back for verification. Most users check the zero balance and bridge resistance on site first.

Generally yes. We follow industry wiring standards, so sensors with mV/V output connect to any logger that supplies stable excitation and reads a Wheatstone bridge. For digital outputs like RS485/Modbus, we provide protocol documentation and register maps. If you have a specific logger, our support team can check compatibility and often help with a test configuration file to get you started.