Conair WSB User Manual

Page 76

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3. Third, look at the dispense TIME (DATA line 3).

Very short times (10, 20, 30 interrupts) indicate dispense devices
not well matched to the task. Accuracy on a percentage basis,

cycle to cycle, will suffer. This may very well be acceptable as
long as overall usage percentages are still accurate.

BAILOUT: (line 4)

If bailouts occur, vibration is usually the cause and these bailouts
may be causing other problems. Raise the value of the BAL parameter to
200 or 300 grams to reduce or eliminate unnecessary bailouts.

Vibration may also cause throughput rates to suffer due to the added
time requiring to obtain acceptable weight readings. Increase the WDF
parameter to 2 or 3 grams, (WDF 00003) or (WDF 00030), or more if
necessary.

The last number in the last line is the CYCLE count, a convenient way
to keep pages of data in order, like page numbers.

SPECIAL TESTS
Using the *54 flag

If you are running special tests in the MANUAL or PROGRAM mode, a
printout will automatically occur after each test provided the PRINT
flag (*54) is turned on.

Special tests that produce printouts are TIME and CALIBRATE.

TIME (See KEYPAD, MANUAL MODE, TIME for more information)

The TIME function is to determine lag times of different metering
devices. It also allows testing of device repeatability.
The printout looks like this:

TIME NATURAL 123 274.9
^dispense time (in interrupts; 244 = 1 sec.)
^weight dispensed

CALIBRATE (See KEYPAD, MANUAL MODE, CALIBRATE for more information)

The CALIBRATE function allows the controller to rapidly learn the flow
rate of the device. It automatically sets the WEIGHT and TIME
parameters that determine metering rate, and the MINIMUM RATE
parameter. For more information see PARAMETERS, _RA, _TI, and _MI.
The printout looks like this:

CALIBRATE NATURAL 732 2079.5 15 346.5
^dispense time
^weight dispensed
^lag time used
^min rate

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