ENGINEERING DOCUMENTATION 15
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8 General Rules
1. After switching-on the power, the scale proceeds with self-tests and zeroing the
scale. During start-up the scale should not be loaded (does not apply to tank
scales, where scales are not zeroed after start-up).
2. Before each measurement make sure that zero indicator is displayed. If zero
indicator does not displayed or “----“ communicate appears, press →0← key
and wait until zero indication and zero indicator appears.
3. The scale is equipped with a tare equal to its range. To tare the scale press
→T← key. Storing a tare value does not extend measuring range, but only
subtracts it from a load placed on a pan. If the scale is not loaded →T← key
does not operate – to zero the scale press →0← key.
4. Weighing result should be read when the indicator " " lights, which signalizes
stabilization of a result.
5. Weighed sample should be placed in the centre of the platform.
Do not drop weighed objects on the platform!
Do not overload the scale more then 20% of maximum
load (Max).
6. Protect the scale against dust, aggressive dusts and liquids. To clean it is advised
to wash the scale with water and dry it afterwards.
7. Each indicator may be equipped on demand with a set of special functions:
constant tare, total weight and many more.
9 Indicator cooperation with other systems
Opto-isolators outputs of P1-P3 signals (open collector) are destined for external
signaling or dosing devices control. Interface work is controlled by function of
comparing with threshold values (tHr).
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