BQTF2 Industrial Controls

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Panel meters are devices used to measure various kinds of electrical signals or parameters such as voltage, current, power, temperature, pressure, and etc. BQTF2 is one example of panel meters, which are specialized in detecting low level signals such as current leakage in protective circuits. This article will discuss the application field and working principle of BQTF2 panel meters.

Application Field

BQTF2 panel meters are widely used in solar energy, motors, security systems and industrial metal detection. In solar energy devices, the BQTF2 panel meters ensure that the current leakage is within acceptable threshold. This protection can prevent overcharging, overcurrent and other important safety issues related to malfunction of solar panels leading to serious property damage or safety risks. In motors, the BQTF2 panel meters detect abrupt current surges from motors that are operating at high current or power rating levels. This protection protects any overload or internal short circuit that may occur due to any mechanical or electrical failure in the motor.

In industrial metal detection applications, the BQTF2 panel meters are used to detect any metal objects such as coins, nail clips, jewelry pieces, etc. that may fall into a production line or industrial pipe. This safety measure prevents any harmful impact to the machines or operators working with them. In the security system, the BQTF2 panel meters are used to detect any unauthorized access, tampering, or break-in. This allows a prompt response to the issue before any major damage or safety risks can occur.

Working Principle

The BQTF2 panel meter utilizes a dual stage design comprising a ferrite core transformer and an electronic circuit. The ferrite core transformer is positioned in a loop that creates alternating magnetic fields. When a low-level current signal is applied to the BQTF2 panel meter, the ferrite core transformer induces a voltage signal in the balanced secondary winding. The winds do not interact and therefore this process maintains the integrity of the signal.

The electronic circuit then filters and amplifies the induced signal. The signal is then detected by a circuit that calculates the average value over a predetermined period and this value is displayed on a panel. This enables the panel display to accurately detect and monitor any current or voltage signals independent of its strength. This makes it suitable for measuring either DC or AC current or voltage signals.

To summarize, the BQTF2 panel meter is a device used for detecting and monitoring low-level current or voltage signals applied to it. The ferrite core transformer and electronic circuit design filter and amplify the signal before it is displayed on a panel. It is widely used in solar energy, motor, metal detection and security system applications for ensuring proper protection and monitoring of the system.

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