Model 2000 Flow Computer Instruction Manual
2.0 GENERAL DESCRIPTION
Model 2000 issue 21 Page No
19
2.3. MODEL 2000 FUNCTIONS
2.3.1. PRE-SET VALUE OF TOTAL FLOWS
The initial value of the Main totals for all available Streams and the Station can be set to a pre-set value by entering the EDIT
main menu item and entering the starting value for the required total. Upon exit from the EDIT mode the total will start
counting flow from the new value.
2.3.2. RESET OF TOTAL FLOWS TO ZERO
The Main totals for all available Streams and the Station can be RESET to zero by entering the EDIT main menu item and
YES for the Counter option on the RESET page. Upon exit from the EDIT mode the totals that have been RESET to zero will
start counting flow from zero.
The Peak flow rates and the time they occurred for all available Streams and the Station can be RESET by entering the EDIT
main menu item and YES for the peaks option on the RESET page.
2.3.3. CLOCK
A clock is built into the Model 2000 which gives the time and date shown on the display and is used for alarm recording, peak
flow calculation and many other functions to give accurate timing of events. The clock is set in the EDIT mode by selecting
the Time and Date menu item in the EDIT menu, the cursor keys and function keys can then be used to individually adjust
the years, months, days, hours, minutes and seconds. The clock is powered by an internal lithium battery when the Model
2000 power is removed, the battery will power the clock for 1 year with the Model 2000 un-powered.
2.3.4. MAINTENANCE MODE
The Model 2000 can be set to operate in a Maintenance Mode, this can be set up in the EDIT mode. The function of the
maintenance mode is to operate the Model 2000 such that flow would be totalled on the Alarm counters and not on the Main
counters when in this mode.
It is possible to place all streams into mainteinance on the same command, or to place each stream into maintenance mode
individually.
When in the maintenance mode in either a Turbine or Ultrasonic machine, the operator can set the M2000 to use a preset
value for its flow rate input rather than the measured input. This function is set in the windows operating software.
When in the maintenance mode the following functions will occur:-
• A Warning is indicated.
• All Alarm digital Outputs are set to the no alarm position.
• All Totals pulse outputs are inhibited.
• All Flow rate alarms are suppressed.
• All Analogue Outputs are set to the minimum value
• Grab Sampler system suspends sampling.
2.3.5. PROVING MODE
The Model 2000 can be set to operate in a Proving Mode, this can be set up in the EDIT mode. The function of the proving
mode is to operate the Model 2000 such that flow would be totalled on the proving counters and not on the Main counters
when in this mode. When in the proving mode a Warning is indicated.
2.3.6. HOLD TOTALS
The Model 2000 can be set to provide copies of the Main and Main Alarm Totals that can be stopped or Held by operating a
front panel Button. These Totals in a Held position must be enabled in order to be viewed under the Main Menu item Totals.
When displaying the Main Menu item Totals Function Key F3 will have the function HOLD, when this function is operated the
current value of the Main Totals and Main Alarm Totals is copied across to the Main Held counters and Main Held Alarm
counters. The values will be copied every time the HOLD key is operated. The HOLD key is only operational when the Main
Menu item Totals is being displayed. Alternatively the HOLD function can be operated by a switch contact connected to one
of the available Status inputs provided the input is set for a Hold Counters function.
2.3.7. ACTIVE DATA SNAPSHOT REPORT
The Model 2000 can be configured to generate an active data snapshot report. This report can be setup to present upto 50
items of live data to assist in a calculation verification. The content of the active data report is configured using the Active
Data page in the Windows software. The report can then be read by the windows software, and converted into a pdf, txt,
html or Excel file.
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