Four Key Points to Note When Installing Temperature Sensors for Air Compressor Protection Devices

Installation Precautions

1. Location Selection

The sensor should be installed in the area of the air tank with the highest temperature (usually near the outlet or the middle of the tank), avoiding proximity to cooling systems or dead zones.

Keep away from vibration sources to prevent signal interference.

2. Sealing Requirements

After installation, conduct an airtightness test (e.g., soap water detection) to ensure no leakage.

Use high-temperature-resistant sealing materials (such as PTFE) to avoid aging and failure under high temperatures.

3. Electrical Connections

The sensor leads must be connected to the signal input terminal of the overtemperature protection device (typically a three-wire system).

Wiring should be kept away from high-voltage cables to prevent electromagnetic interference.

4. Calibration and Testing

After installation, calibrate the temperature zero point and range through the protection device menu.

Simulate high-temperature conditions (e.g., heating the sensor probe) to verify whether the protection device triggers shutdown or alarm functions.

Common Issues and Solutions

Sensor Malfunction: If abnormal temperature readings occur, check for loose wiring or fouling on the sensor probe (regular cleaning is required).

False Alarms: May be caused by improper installation location (e.g., near a heat source); reselect the measurement point.

Poor Sealing: Re-tighten threaded connections or replace sealing materials.

Following these steps ensures stable and reliable operation of the temperature sensor, effectively monitoring the air tank temperature and safeguarding the air compressor system.