Adam Equipment CBW 100a, Руководство по обслуживанию

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@Adam Equipment Company 2005 11
Calibration weights
CBW SERIES
CBW 3 CBW 6 CBW 15 CBW 30 CBW 45
Weight 1 1000 g 2 kg 5 kg 10 kg 15 kg
Weight 2 3000 g 6 kg 15 kg 30 kg 45 kg
CBWa SERIES
CBW 6a CBW 12a CBW 35a CBW 65a CBW 100a
lb kg lb kg lb kg lb kg lb kg
Weight 1 2 lb 1000 g 4 lb 2 kg 10 lb 5 kg 20 lb 10 kg 40 lb 15 kg
Weight 2 6 lb 3000 g 12 lb 6 kg 30 lb 15 kg 60 lb 30kg 100 lb 45kg
6.1 ADC OUTPUT CHECKING
It is possible to check the raw count output of the A nalogue to D igital C onverter
which will also verify if the load cell is in good condition.
To start the ADC check, turn the scale off and then turn it back on. Press the
[Zero/Enter] and [%] keys together during the initial counting from 9 to 0 on the
display.
The raw ADC counts will be displayed. With no load on the pan the raw counts
should typically be between 10,000 and 100,000 although this is not critical.
Different capacity scales have different load cells and the pan assembly will vary the
dead load percentage of the cell. If with no load on the pan the counts are below
1000 or above 200,000 then the load cell should be tested as explained in the next
section.
Apply full capacity to the pan to verify that the raw counts increase to a value that will
not exceed the capability of the ADC. Typically the raw counts will increase to a
figure below 500,000 although if a mass has been added to the pan then this may be
exceeded. If the counts go above 900,000 or decrease with load then please test the
load cell for damage or incorrect wiring.
To check if the ADC has a good output for best accuracy then empty the pan and
press the [Zero/Enter] key to set the counts to “0”.
Now apply full capacity to the pan and note the span of raw counts.
Divide the number of counts by the number of displayed divisions (i.e. 30,000 as
standard). If the input to the ADC is good then there should be approximately 10 or
more counts per division for best accuracy.
If there are less than 10 counts / d then check that the correct load cell is fitted and
that the over load stops are adjusted correctly.
To exit the ADC raw counts mode remove any weights and press the [Tare/ ] key.