FT4X thermal mass flowmeter features a new data logger that records flow rate, totals, and events and alarms. Features include 40 daily totals, settable contract time to define the contract day, time/date-stamped alarm and event logs, seven-year history, power-off totalizer (power failure creates an event log entry), and display of density and gross heating value based on selected gas composition. Users can view gas or gas mix composition, meter configuration and settings, calibration history and alarm and event logs.