Rice Lake QB Series Page 13 Operation Manual Download

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Weighing Operations

5. Release the

key. The display changes to show either

1.SET.1

1.SET.2

. If the display shows

1.SET.1

continue with step 6 below. If the display shows

1.SET.2

, press and release the

key once to change the

value to

1.SET.1

, then continue with step 6 below.

6. Press and release the

key once. The display changes to read

2.SEL.1

. This indicates that the comparator

function is currently inactive.

7. Press and release the

key once. The display changes to read

2.SEL.2

. This indicates that the comparator

function is active.

8. Press and release the

key once. The display changes to read

21.Co.X

, where “X” is a value of either 1 or

2. Continue with Section 2.7.2 to establish the basic parameter configuration of the comparator function.

2.7.2

Basic Over/Under Parameter Selection

1. With the display reading

21.Co.X

, where “X” is a value of either

, (see step 8, Section 2.7.1 above),

determine if you wish to have the comparator function with only a stable weight reading (recommended)
or for all weight readings. If you wish to have a comparison done for only stable weight readings press
and release the

key until the display reads

21.Co.2

. If you wish to have a comparison done for all

weight readings, press and release the

key until the display reads

21.Co.1

2. Press and release the

key once. The display changes to read

22.Li.X

where “X” is a value of either

3. Determine if you wish to have a comparison performed for the entire weighing range of the balance, or if

you wish to exclude comparisons for values close to zero and for negative values (recommended). If you
wish to have comparisons performed for the entire weighing range of the balance, press and release the

key until the display reads

22.Li.1

. If you wish to have comparisons excluded for values close to zero and

for negative weight values (recommended), press and release the

key until the display reads

22.Li.0

4. Press and release the

key once. The display changes to read

23.bu.X

, where “X” is a value of either

, or

5. Determine which of the following visual indications you would prefer for the various over/under/accept

conditions.

6. Press and release the

key repeatedly until the appropriate parameter value from Table 2-2 is selected.

7. Press and release the

key once. The display returns to a

0.00

reading and the arrows next to the display

legends

OVER

UNDER

, and

ACCEPT

flash continuously indicating that upper and lower limits need to be

established. Continue with Section 2.8.3 on page 11.

NOTE: If the OVER, UNDER and ACCEPT arrows are not flashing, one of two conditions exist. Either the
comparator function has not been turned on correctly, or there are UPPER and LOWER comparison
limits already programmed into the unit. Verify that the comparator function is properly activated (see
Section 2.7.1 on page 8), then continue with Section 2.8 below.

2.8

Setting the Upper and Lower Comparison Limits

There are two methods for establishing the upper and lower comparison limits – the reference sample method
and the digital reference method. Section 2.8.2 on page 10 discusses the reference sample method where samples
of commodity that exactly represent the upper and lower limits are weighed and memorized by the balance.
Section 2.8.2 on page 10 discusses the digital reference method where the upper and lower limits are known
values and can therefore be digitally keyed into the balance.

Parameter Value

Indication

23.bu.0

Solid arrow next to appropriate display legend

23.bu.1

Flashing arrow next to UNDER display legend. Solid arrow next to ACCEPT and OVER display legends

23.bu.2

Flashing arrow next to ACCEPT display legend. Solid arrow next to UNDER and OVER display legends

23.bu.3

Flashing arrow next to OVER display legend. Solid arrow next to UNDER and ACCEPT display legends

23.bu.4

Flashing arrow next to UNDER and ACCEPT display legends. Solid arrow next to OVER display legend