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3. Operational Method
3.1 Turn on the power. Open the switch. The displaying windows
displays from "F----1" to "F----9" and after a certain time for stabilizing,
"0 . 0" appears; Then preheats for 15 minutes. Instability of the displaying
at every beginning is normal; after a certain time, the displaying will stabilize.
3.2 With empty scale platform, the displaying deviates from zero,
pressing "TARE" key, then the displaying will return to zero.
3.3 If the scale has not been used for along time or just bought, the
scale should be calibrated. Firstly, the scale is fully preheated (over 15 min.)
with empty scale platform. Then press "CAL", the displaying windows hows
"C-XX--" and the balance will automatic calibrate (XX should be the weight
of standard weights. For instance, "C-10-" means to place the 10kg test
weights). At the same time, only place calibrating weights on the scale
platform. After stabilizing, the scale displays the weight of the calibrating
weights. The weight unit is "kg". The indicator lightens; till now the
calibration is completely finished and the scale can be normally used. If
press "CAL", but display "C----F", which indicates the Zero point is not
stable. Then re-press "TARE" to make "zero" point stable; and re-press
the "CAL" to carry out calibration.
3.4 If weight of a weighed article exceeding the scale measuring range,
the scale will warn "F----H".
3.5 If needs to tare, first place the container on the platform, after
stabilizing, press "TARE"; the scale displays "zero". Then place the article
in container, at this time, it shows the net weight of the article. Remove the
article and the container. The scale shows a negative value of container
weight. Still press "TARE" to return to "zero"
3.6 Count
3.6.1 Choose samples. To precisely count the articles, firstly the quantity
3
of samples for counting should be chosen in according with the weights of
the articles. The quantity of samples can be chosen from "1-10-20-50-100".
For a small number of articles, the larger quantity of samples, the more
precise.
3.6.2 Place the samples on the pan, the balance will show the total
weights of samples. Then press "Count", balance will show "1", and unit
will show "pcs", which indicate that balance is now counting. And all the
samples are one unit. Then press "Count", the displaying will show between
1-10-20-50-100. The quantity of articles must be the same with the quantity
of samples, and place the similar articles. The total amount of objects is
showed. Pressthe "Count" again back to the normal situation.
3.7 Unit Change: Press "kg/lb", the units will be changed between
"kg" and "lb". The indicator willlighten.
3.8 Data Output
Balance is targeting data output interface RS232C and can be directly
connected to the printer. The following soft wares are needed, when connects
to computer:
3.8.1 Transmission format: serial asynchronous
3.8.2 Serial communication protocol:
Baudrat: 600,
data: 8 units,
starting: 1 unit,
ending:1 unit
3.8.3 Data format:
starting
data
symbol
2 unit
7 units
3 unit
3.8.4 Calibration: no calibration
3.8.5 Output pins content (9-core socket): 2 pins: RXD 3 pins: TXD
5 pins: GND
ending
enter
1 unit
1 unit
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