The Case of the Non-Sensing Sensor

THE MYSTERY One of ACES’s municipal water customers had an issue with the external display for an ultrasonic sensor, which sits above a tank and measures the liquid level. The unit was displaying a fault and the customer could not get it to reset. THE CLUES One of the...

The Case of the Shorted-Out Exhaust Fan

THE MYSTERY A municipal water customer was having an issue with the exhaust fan on one of their lift stations: When they flipped the switch to start the fan manually, it tripped two breakers. They called an ACES Control Systems Inspector (CSI) to the scene to...