Omega FC-21 User Manual Download

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FC-21 Flow Computer

5. UNIT OPERATION

5.1 Front Panel Operation Concept for Run Mode

The FC-21 is fully programmable through the front panel. Please review the
following usage summary before attempting to use the instrument.

HELP

On-line help is provided to assist the operator in using this product. The help is
available during RUN and SETUP modes simply by pressing the HELP key. The
HELP key is used to enter decimals when entering numeric values.

FUNCTION KEYS

In the RUN mode, several keys have a special, direct access feature, to display
an item of interest (i.e. RATE, TOTAL, PRE 1, etc.). Press the key to view your
choice. Press the SCROLL key to return to scrolling display.

CLEARING TOTALIZER

To clear the total, you must press the TOTAL Function Key 3 times. You will be
asked to verify this action. The operator will be prompted to enter password if the
unit is locked.
NOTE: In the Batcher Mode, simply press the CLEAR key to reset the total (the

batcher must be stopped or finished batching). It is not necessary to press
the TOTAL Function Key first.

CLEARING GRAND TOTAL

To clear the grand total, you must press the GRAND Function Key 3 times. You
will be asked to verify this action. The supervisor will be prompted to enter the
supervisor password if the unit is locked.

PRESET KEYS

In the RUN mode, PRE 1 & PRE 2 keys are used to view and/or change the preset
setpoints. To view the Presets, simply press the desired Preset key. Rapidly
press the Preset keys 3 times, then press the Clear key for direct editing of the
preset setpoints.

SCROLL

Rapidly press the Scroll key twice to setup a display list.
Press the CLEAR key to remove old scroll list.
Press the function key for the item you wish to add
Use the

∆

∇

keys to assign the line.

PRINT

The PRINT key is used to print on demand. When the PRINT key is pressed, a
user defined list of data (TOTAL, RATE, PRE 1, etc.) is sent to the RS-232 port. A
timed message of "PRINTING" will be displayed to acknowledge the print request.

SPECIAL BATCHING KEYS

The START and STOP keys are used only when batching to start and stop
batches. The CLEAR key will clear the total without first pressing the TOTAL key
(unit must be stopped). All other keys work the same in both Rate/Total mode and
Batch mode. The Start and Stop keys operation are set by the control input
settings. The Start options are: START or RESET/START. The Stop options are:
STOP or STOP/RESET.

MENU KEY

The MENU key is used to enter the Setup and Test modes. Press the MENU key
to enter the Setup and Test modes. (See section 6 for Setup mode, section 8 for
Test mode). The MENU key is used as "escape" in Setup and Test Programming.
Pressing the MENU key wile programming in the Sub-Menu groups will backup the
display to that Sub-Menu group heading. Pressing the MENU key while viewing
the Sub-Menu groups will backup the display to the Top Level Menu.

ACKNOWLEDGING ALARMS

Most alarm messages are self-clearing. Press the ENTER key to acknowledge
and clear alarms.

NOTE: Some keys and functions are password protected. Enter the password to

gain access. The passwords are factory set as follows:

Operator = 0
Supervisor = 2000

How To Use
On-Line Help

How To Use
Function Keys

How To Clear The
Totalizer

How To Clear The
Grand Total

How To Enter
Presets

How To Create a
Scroll List

How To Use
The Print Key