Abstract: The technology disclosed relates to detecting malfunction in a sequencer. In particular, the technology disclosed relates to receiving sensor data obtained from a sensor of the sequencer, applying a smoothing function to the sensor data to produce a smoothed time series, determining changes between smoothed successive datum in the smoothed time series that exceed a predetermined change, determining a degree of instability based upon the predetermined change, and generating an alert indicating that the sequencer is malfunctioning when the degree of instability exceeds a predetermined threshold.

Abstract: The technology disclosed relates to detecting malfunction in a sequencer. In particular, the technology disclosed relates to receiving sensor data obtained from a sensor of the sequencer, applying a smoothing function to the sensor data to produce a smoothed time series, determining changes between smoothed successive datum in the smoothed time series that exceed a predetermined change, determining a degree of instability based upon the predetermined change, and generating an alert indicating that the sequencer is malfunctioning when the degree of instability exceeds a predetermined threshold.

Abstract: The technology disclosed detects chiller system instability that reduces false alerts. A smoothed time series of chiller temperature sensor data is tested in a predefined time window for periods of stable operation below a predetermined threshold. The technology disclosed predicts that the reagent chiller is unstable if periods of stable temperature operation are less than a predetermined stability measure or if the stable reagent chiller temperature has exceeded a threshold. The technology disclosed detects flow cell heater failure over multiple cycles in a system. A time series of flow cell heater temperature sensor data is tested to determine if a count of points in a recent process cycle were recorded above a threshold. The technology disclosed determines that a flow cell heater is failing if count of points above a threshold in two consecutive cycles is less than a predetermined count.

Abstract: The technology disclosed detects chiller system instability that reduces false alerts. A smoothed time series of chiller temperature sensor data is tested in a predefined time window for periods of stable operation below a predetermined threshold. The technology disclosed predicts that the reagent chiller is unstable if periods of stable temperature operation are less than a predetermined stability measure or if the stable reagent chiller temperature has exceeded a threshold. The technology disclosed detects flow cell heater failure over multiple cycles in a system. A time series of flow cell heater temperature sensor data is tested to determine if a count of points in a recent process cycle were recorded above a threshold. The technology disclosed determines that a flow cell heater is failing if count of points above a threshold in two consecutive cycles is less than a predetermined count.