The rookie must learn: five questions and five answers based on wireless sensors!

September 23, 2021

[Guide reading] Wireless sensor, there will always be a situation where the display is beating or the number is inaccurate after application, or other situations. Based on these basic questions, is there any good solution? Xiaobian here summarizes the five questions and five answers for everyone, it is worth seeing!

After the wireless sensor is installed, the display may be displayed in batches or the number is inaccurate. Solution: The performance of the product selected by the customer does not meet the on-site conditions. The transmitter with isolation function needs to be installed or replaced.

1. After the wireless sensor is installed, the display may appear in batches or the number is inaccurate.

Cause: There is electromagnetic interference at the site, or the same line slot where the signal line and the power line go.

Solution: The performance of the product selected by the customer does not meet the on-site conditions. The transmitter with isolation function needs to be installed or replaced.

2, wireless sensor installation, display error or not displayed

Cause: The signal line is positive or negative wiring error.

Solution: Disconnect the power supply, swap the positions of the two signal wires, and press the terminals to re-power them. In particular, the PT100 thermal resistance sensor with a three-wire output without a transmitter often has such problems when installed on site.

3. The value displayed by the wireless liquid level sensor after use is unchanged.

Cause: Water in the air duct

Solution: Return to the factory for maintenance, drain the water in the airway, re-calibrate the meter, and use.

4, the temperature sensor has no signal output

Reason: When the worker is installed, because the sensor is not known, the force is too large, causing the pin of the temperature measuring component to be pulled out completely, so that the signal loop is interrupted.

Solution: When installing, simply connect the wires to the terminals, without removing the transmitter or magnetic plate, and press the signal leads with the terminals.

5, the intelligent control instrument installation does not display

Cause: The instrument parameter settings are incorrect.

Solution: First confirm the type of signal that the wireless sensor is connected to, and adjust the input parameters of the intelligent control meter corresponding to this type.

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