Fault analysis and solutions for kinematic viscosity testers

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Fault analysis and solutions for kinematic viscosity testers are listed in the table below; please refer to it:
Fault phenomenon | Cause | Solution
--- | --- | ---
The power indicator light does not light up | 1. Poor contact between the power plug and socket 2. Blown fuse 3. Damaged or disconnected indicator light 4. Damaged or poorly connected power switch | Plug in the power connector properly; check for short circuits; inspect the indicator light; check the power switch
The fluorescent light does not light up | 1. Damaged lamp tube 2. Disconnected wiring of the lamp tube 3. Damaged switch | Replace the lamp tube; locate and repair the disconnected wiring; check the switch
The mixing motor does not rotate | 1. Poor contact between the motor plug and socket 2. Damaged motor 3. Damaged switch | Plug in the connector properly; replace the motor; replace the switch
Temperature control fails | 1. Open circuit or breakdown of the solid-state relay 2. Damaged heater 3. Damaged sensor | Replace the relay; replace the heater; replace the sensor
Temperature control is available but with insufficient precision | 1. Poor contact of the power strip at the back of the chassis 2. Aging of the solid-state relay 3. Unstable platinum resistor in the sensor | Ensure proper grounding; replace the relay; replace the sensor