Drawell TD3000 Manuale d'uso - Pagina 4

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CALIBRATION

 The purpose for this operation is to calibrate the balance so as to achieve

the best performance in case there is obvious tolerance error in weighing

or the balance is located in different gravity due to different latitude.

 it is suggested to warm up the balance over half an hour before calibration.

 Remove all loads from the platter, press key TARE to clear the readings to

0.0g,0.00g or 0.000g.

 Press and hold key CAL for 3 seconds, release the key CAL when

"---CAL---" is shown in the display, a figure of standard weight will flash in

the display, put a standard weight on the platter accordingly, standby state

"------" will be shown in the display for a few seconds before the standard

weight figure is shown in the display, remove the weight, "------" standby

state will remain for a few seconds before the balance enter stable

weighing mode, showing 0.0g ,0.00g or 0.000g.

 It is recommended to make the operations twice to achieve the best

calibration result.

 Linearity Calibration, Press and hold key CAL for 3 seconds, release the

key CAL when "---CAL---" is shown in the display, after a short presence of

"- - - - ", a standard weight figure will flash in the display, press and hold

key PCS to enter linearity calibration mode, follow the instructions to

proceed linearity calibration.

WEIGHING

When the balance is warmed up and calibrated, 0.0g,0.00g or 0.000g is shown

in the display indicating weighing mode, put the object on the platter, when

stable, the weight of the object is shown in the display.

TARING

When a loader is put over the platter, its weight is shown in the display, press

key TARE, 0.0g ,0.00g or 0.000g will be shown in the display, indicating the

weight of the loader is deducted, put the object into the loader, when stable,

the figure shown in the display is the weight of the object.

PIECE COUNTING

Remove all loads from the platter, press key TARE to clear the readings in the

display, press key PCS to enter counting mode, "- -COU- -" "- - - -" and figure

10(default sampling quantity) will in turns be shown in the display, press key

CAL to select sampling quantity from 10,25,50,100 up to 500,release key CAL

when the desired quantity flashes in the display, put a sample on the platter

accordingly, press key PCS again to save setting, the counting mode setting is

finished, in counting mode, weighing unit will change from g to PCS.

Notice: In counting mode, the weight of the sampling objects should be even,