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3. Preparatory work and attentions
3.1 Using environment: indoor, max. Altitude: 2000m, temperature:
0-40℃, humidity 80%, Power fluctuations lessthan ±10%.
3.2 The scale should avoid sharp temperature changing, intense air
flowing and ground vibration. And keep the scale away from heat and humidity
3.3 Place the balance on the flat and solid table. Adjust the fourlegs to
support the balance.
3.4 Use separate power outlet and avoid dynamic power.
3.5 The electronic scale is a precision instrument which needs to
begently handled during the weighing of articles. Avoid impact and heavy
load on top (never exceed its max. weighing limit). Any forms of impact
or overloading many cause permanent damage to the electronic balance,
even in the use of electronic balance with outpower supply.
3.6 15min. preheating is needed.
3.7 When the indicator of battery lights, which means battery is near
empty and needs to recharge. Using balance under this situation can result
in an instability or major error. At the same time, the backlighting and
calibration will automatically shut down.
3.8 Because of long-term not using, the scale must be placed in dry-
ventilated place and recharge every three months. Charging is necessary
before or during re-using.
3.9 Warning: If the equipment is used in a manner not specified by this
instruction the profection provided by the equipment may be impaired
3.10 Gentle handling in daily using, with dry and clean cotton cloth
cleaning.
4. Operational Method
4.1 The newly bought or long-time not used balances should be conn-
ected with power supplier before using. In order to charge the battery. 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" appears;
Then preheats for 15 minutes.
4.2 With empty scale platform, the displaying deviates from zero,
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pressing "TARE" key, then the displaying will return to zero. For removal
of the weight of packaging materials, first stage please place the packing
containers on the pan, after stabilization press "TARE", it shows 0. Then
put the items into the container. At this point it shows the net weight of the
items. Take off the container and items, it shows the minus value of the
packing container. Press "TARE" again, it goes to 0.
4.3 If the scale has not been used for a long 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 window
displays "CXXX" and the balance will automatic calibrate (XXX should be
the weight of standard weights. For instance, "C---20" indicates to put 20
kg test weights). At the same time, only place calibrating weights on the
scale platform. After stabilizing, the scale displays the weight of the calib-
rating weight sand the symbol "kg"; till now the calibration is completed
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" points table; and re-pressthe "CAL" to carry out calibration.
4.4 Count
4.4.1 Choose samples. To precisely count the articles, the quantity 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.
4.4.2 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 indicates that balance is now counting. And all the
samples are one unit. Then press "kg/lb", 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. Press the "Count" again back to the normal situation.
4.5 Unit Change
Press "kg/lb", the units will be changed between "kg" and "lb". The
indicator will lighten.
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