CHK PQ Switch

The Miro PQ Switch is an advanced power quality analyzer that uses a high-speed relay output to automatically trigger hardware when electrical thresholds like voltage, frequency, or THD are breached. It acts as both a precision data logger and an active protection device that can initiate immediate actions like starting a backup generator or disconnecting sensitive loads.

This instrument features a typical switching time of approximately 10 milliseconds, which is fast enough to react to sudden power quality events before they cause significant downtime or damage. This rapid response can often eliminate the need for expensive Uninterruptible Power Supply (UPS) systems in certain industrial configurations.

Yes, the device is built with intelligent logic that allows users to set progressive delay times for switching back to the main supply after a failure. This ensures that the system doesn't "chatter" or toggle repeatedly during an unstable recovery, only reconnecting once the power quality has remained stable for a safe duration.

The Miro Aux is an expansion module that adds additional analog and digital I/O channels to the Miro platform, allowing for the integration of non-electrical data. It is commonly used to log external factors like transformer oil temperature, hydrogen levels, or vibration alongside electrical metrics to provide a full picture of asset health.

Users utilize the Citrus software platform to configure the devices, view real-time phasor diagrams, and generate automated compliance reports such as EN50160 or IEEE519. Many models also feature integrated WiFi and 3G/4G cellular connectivity, enabling technicians to download data and receive alerts remotely without being physically present at the site.