Failure analysis of SIT electronic balance in the US 1. Symptoms of broken sensor:
1. The reading is unstable and the numbers jump randomly;
2. No weighing value.
Second, the symptoms of shrapnel breakage or discount:
1. The four corner errors are too large;
2. Inaccurate weighing value;
3. Linearity cannot be corrected.
3. If there is no display on the balance, the fault is:
1. Check whether the power supply is normal;
2. To judge whether the transformer is good or bad, use a "multimeter" to test, remember "positive and negative inside";
3. There is a problem with the motherboard, you need to return to the manufacturer for repair 
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