Calibration And Sealing - OHAUS TC3RS Manual De Instrucciones

Trooper Count Scale

5. CALIBRATION AND SEALING

Although your Trooper Count scale has been calibrated at the factory, many conditions may require it to be re-calibrated
when first put into use and periodically thereafter. Temperature change, geographic gravity variation, altitude change
and abuse are a few reasons why a scale may need calibration.
Span calibration uses two points to adjust the scale. One point is called the zero value where there is no weight on the
scale. The other point is the Span value that is often but not necessarily at full capacity. Trooper Count lets you choose
between three Span values. These values are shown in the table below. The highest weight value generally gives the
best performance over the entire weight range. Other span values may be chosen due to calibration weight availability
or for improved accuracy at a lower weight range.
Linearity calibration uses three points to adjust the scale. In addition to the zero and full scale values an additional point
is chosen between the two. The values are factory set and are shown in the table below. Linearity calibration should
only be performed if determined to be necessary after a Span calibration.
Before calibrating a scale first determine that it is necessary. Place available calibration masses on the scale, as each
mass is added the display should indicate the correct weight within +/- 1 scale division. If the scale is within this
tolerance there is no need to calibrate the scale.
If the scale must be calibrated, use the table below to select the calibration value(s) that will be used. Do not start the
calibration procedure until you are certain that you have the appropriate calibration masses.
Verify that the Cal menu is not locked (see section 4.9) and that the correct calibration unit (pound or kilogram) has
been chosen in the Setup menu (See section 4.5).
Cal in kg: Span Cal choices
TC3RS
TC6RS
TC15RS 5, 10, 15 kg
TC30RS 10, 20, 30 kg
Cal in lb: Span Cal choices
TC3RS
TC6RS
TC15RS 10, 20, 30 lb
TC30RS 20, 40, 60 lb
Recommended tolerance Class for the calibration masses:
ASTM Class 4 or OIML F2
CALIBRATION MASSES
1, 2, 3 kg
2, 4, 6 kg
2, 4, 6 lb
5, 10, 15 lb
Linearity Cal (fixed)
2 & 3 kg
4 & 6 kg
10 & 15 kg
20 & 30 kg
Linearity Cal (fixed)
4 & 6 lb
10 & 15 lb
20 & 30 lb
40 & 60 lb
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