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- Semiconductor manufacturing tools
- Medical laboratory equipment
- Pharmaceutical processing and packaging controls
- Food manufacturing machinery
- CNC equipment in machine shops, factories
- PLC factory automation equipment
- Elevator controls
- Machine tools, HVAC controls, ASD's
- Ultra-low-cost substation power quality monitoring
- Data centers, servers, telecom centers
- Add power quality information to error log files
- Identify hard-to-duplicate intermittent problems
- Reduce unproductive service calls
- Correctly assign responsibility
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An industrial power quality counter designed and built by Precicon Automation of Singapore uses PQ1 Power Quality Relays to detect events, which are counted on the LED displays.
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Major manufacturers of semiconductor equipment uses PQ1 Power Quality Relays to detect power quality events that exceed their equipment specifications. The events are logged in a disk file with dates and times. Field service engineers can remotely access the disk file, and use the PQ1 events to avoid unnecessary field service calls.
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More and more manufacturer of sensitive process related machines and systems uses PQ1 Power Quality Relays to detect power quality events that could disturb the process. The little PQ sensor is wonderfully simple.
It has one input - a pair of screw terminals that you connect to AC power - and three normally-closed relay contact outputs: minor voltage sag, major voltage sag, and swell/impulse. Typically, the relay contacts are connected directly to digital inputs on a PC or PLC. The PC or PLC is responsible for recording the date/time when each contact is activated - most industrial software already has this feature built in.
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