General Specifications 2-7 In the event of power failure or the flowmeter being taken out of the Measure mode for less than onehour, the relay may operate at a rate of once per measurement cycle until the number of relay pulseshas caught up with the Volume change which was computed to have occurred during the outage.Data Display on Touch Screen LCD DisplayIn normal operation, four different display screens are available, and are as follows: Section Variables (Flow & Level & Temperature & Volume) Path Variables (Velocities & VSounds & Signal Gains & Detection Method & Signal to Noise Ratio) Path Variables (Signal Gain % & Travel Times) Path Variables (Time Differences & Raw Analog Input information).For details of the displays, see the Display of Variables section at the end of Chapter 5. For definitions ofthe variables, see the section on Variables at the end of Chapter 7.Parameter Insertion and Reading, Touch Screen LCD DisplayParameters describing the flowmeter configuration are inserted using 6 different parameter menus (accessvia the Parameter Icon in the HOME screen). These parameter screens are selectable via the icons at thebottom of the display. These parameter menus are: SYSTEM (1 page), SECTION (3 pages), PATH (1page), LEVEL (1 page), OUTPUT (1 page), and RELAY (1 page).For instructions on how to insert the parameters, see Chapter 5.For details on setting up the integral data logging, see Chapter 5.For details and definitions of the parameters, see the User Defined Parameters section in Chapter 7.There are six command buttons on the HOME page (Selectable by pressing the HOME icon): Section To put the flowmeter into the Measure mode. This display function will show all of theSection related variables (flow, level, temperature, and volume). Path To put the flowmeter into the Measure mode. This display function will show all of the Pathrelated variables. A user can select from 3 different path variable displays by selecting Page 1, Page 2,or Page 3 in the vertical navigation bar on the right side of the display. Parameter To view or change the flowmeter’s internal parameters. The various system, section, path,level, output, and relay parameters can be selected via the icons located on the bottom of the display. Logging To access the data logging function of the flowmeter. A user can enable or disable logging,set a logging interval, select a storage location, export internal data to a USB drive, or clear the internaldata logging memory. Scope To view the processed receive signals for each acoustic path. System To view or set the System values. Page 1 allows a user to set the date/time, IP address, subnetmask, gateway, and Device ID of the unit. Page 2 allows a user to select a baud rate (9600, 19200, or38400), Transmit Mode (Pulse Mode – standard, IS Mode, or Burst Mode), enable passwordprotection, or update the system’s software (Update HMI) or firmware (Update DSP). Page 3 displaysthe flowmeter’s current revisions and allows a user to store or restore the flowmeter parameters to orfrom the flowmeter’s internal memory.