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| Code | Meaning | Code | Meaning | Code | Meaning |
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| Excessively high supply voltage | | The design of the strain gauge does not accord with Saint Venant’s Principle | | The maximum stress point lies outside the strain region |
| Lightning stroke | | Elastic components are affected by contact stress | | Inherent linear difference of the hardware |
| “Surge voltage” caused by unstable supply voltage | | Relatively large shearing strength generated on the surface of elastic components | | Uneven strain distribution |
| Broken output lead | | Poor heat dissipation of the resistance wire after being powered on | | Viscous flow of elastic components |
| Insufficient soldering of cable | | Excessively high temperature | | Thermoelastic effect of elastic components |
| Disconnected wire | | Poor welding quality | | Poor contact of the resistance strain gauge |
| Excessively large impact during weighing | | Aging of the strain adhesive | | No signal output or small signal output after loading |
| Broken cable | | Resistance strain gauge burnout | | Unstable indication instrument |
| Humid environment | | Zero-differential circuit output | | Slow decline in insulation resistance value |
| The charged nitrogen is not dried | | Incorrect direction of adherence of the resistance strain gauge | | Deformation or damage to the seal membrane |
| Overloaded weighing | | Broken bridge resistance or compensating resistance | | Unstable compensating resistance |
| Loading impact | | Damaged circuit insulation | | Overheated grid |
| Excessively long compensating resistance wire | | Broken gate of the output-adjusting resistance | | Hysteresis error |
| Air bubble resistance caused by the adherence of strain gauge | | Output with interference signal | | Excessively large non-linear deviation |
| Irrational design of contact between elastic components and the pushing felt | | Protective agent affected by dampness | | Relatively large creep error |
| Excessively large friction coefficient of the cushion | | Plastic deformation of the strain gauge | | Bridge circuit fault |
| Aging of the welding process of the strain gauge | | deformation of the compensating consistency | | Unstable zero output |
| Reduced sensitivity of the strain gauge | | No aging treatment of the compensating consistency wire | | Excessively large drifting of zero temperature |
| Irrational design of elastic components | | “Hot spot effect” | | Excessively large measuring error |
| Irrational design of flexible isolation | | Recovery of deformation of the retardant elastic components | | Weighing sensor fault |
| Serious aging of the grip zone | | Excessively large sensitivity of diaphragm shunting | | |
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