The following situations may cause the output signal of the photoelectric sensor to be unstable when detecting the object:
① Abnormal power supply;
②The detection frequency is too fast;
③The problem of the size of the measured object;
④The measured object is not in the stable detection area of the sensor;
⑤ Electrical interference.
Countermeasures:
① Supply a stable voltage to the sensor, and the supplied current must be greater than the current consumption of the sensor;
②The passing speed of the measured object must be slower than the response speed of the sensor;
③The size of the measured object must be larger than the standard detection object or small detection object;
④The measured object must be detected within the stable detection range of the sensor;
⑤ Corresponding protective measures can be taken, such as: making a shielding cover around the probe, grounding high-power equipment, etc.
When using photoelectric sensors, please also pay attention to avoiding dusty places as much as possible; places with more corrosive gases; places where water, oil, and chemicals may directly splash; outdoors or sunlight, etc., where there is direct sunlight without shading The place where measures are taken; the place where the ambient temperature changes beyond the specified range of the product; the place where vibration and shock are large, but no shock-absorbing measures are taken. In order to avoid malfunction of the photoelectric sensor.