The common problems that may occur during the measurement process of the adhesion tester can be summarized into the following five categories, and their causes and solutions are as follows:

1、 Unstable accuracy

cause：

1. Sensor aging or zero biasLong term use leads to a decrease in sensor sensitivity or uncorrected initial calibration deviation.
2. environmental interferenceTemperature and humidity fluctuations exceed the allowable range of the instrument, affecting material viscosity or sensor readings.
3. operational errorPoor fixture fixation and unstable testing speed (such as uneven manual operation) result in data fluctuations.

Solution：

• Regularly calibrate sensors and replace aging components.
• Strictly control the environmental temperature and humidity (such as using a constant temperature and humidity chamber).
• Adopting automated testing equipment to reduce human operational errors.

2、 Sensor malfunction

Common manifestations：

1. Abnormal readingThe displayed value is much higher or lower than the actual value, or there is no reading.
2. Calibration failureAfter calibration, accurate measurement cannot be restored.

cause：

• Sensors are affected by moisture, dust pollution, or physical damage (such as collisions).
• Poor sealing of the instrument leads to corrosion of internal components.

Solution：

• Check the sealing of the instrument and clean the surface stains of the sensor.
• Replace the damaged sensor and recalibrate it.

3、 Environmental interference

Key impacts：

1. temperatureHigh temperatures may soften materials, while low temperatures can reduce viscosity, both of which affect test results.
2. humidityHigh humidity environments may cause materials to absorb moisture and alter their adhesive properties.
3. test speedToo fast or too slow speed can cause measurement deviation in viscous force.

Solution：

• Follow standard testing conditions (such as ASTM D3330 specifying 25 ℃± 1 ℃, 50% RH ± 5%).
• Use a constant speed drive device to ensure stable testing speed.

4、 Data processing software issues

Common Faults：

1. Data read errorThe software is unable to recognize sensor signals or display garbled text.
2. record failureTest data not saved or saved in incorrect format.

cause：

• The software version is outdated and has poor compatibility.
• Storage device malfunction or file system damage.

Solution：

• Update the software to the latest version and check compatibility.
• Use reliable storage devices and regularly backup data.

5、 Improper operation and maintenance

Typical issues：

1. Loose fixtureDuring the testing process, the sample was displaced, resulting in invalid data.
2. Instrument leakageDamage to the insulation of the heating wire or motor can pose a safety hazard.
3. Insufficient cleaningResidual samples contaminate the sensor or testing area.

Solution：

• Check the tightness of the fixture before operation to ensure that the sample is securely fixed.
• Regularly inspect circuits and replace aging components.
• Clean the instrument promptly after testing to avoid sample residue.