Scientech HC Series - Manual (Page 7)

Balance Functions and Features:
Autocalibration – To Calibrate the Balance to an External Weight:
This procedure calibrates your balance to an external calibration weight.
Note: For correct calibration weight refer to specification chart in the back of the manual.
Note: The balance should be warmed up for at least one (1) hour prior to calibration and leveled according to the
Unpacking and Setup section.
Note: Perform autocalibration every time you move your balance.
Calibrate the balance using a recently certified external calibration weight. Metrology handbooks state that the calibration weight
utilized to calibrate a balance should have a tolerance no larger than the readability of the balance divided by 3. Therefore, a ±0.033g
tolerance weight or better is required.
User Action Balance Response
1 Remove any containers or weighing samples so
that nothing is on the weighing pan, then press
the TARE button
Zeros are displayed
2 Press the CAL button A series of dashes is displayed followed by the flashing calibration weight
and grams (Gr) annunciator.
3 Place the flashing weight in the center of the
weighing pan
The weight stops flashing and a solid weight and grams annunciator (Gr)
are displayed.
After approximately 10 seconds the balance will “beep” and display the
calibration weight including decimal places. The balance is now calibrated
and in the normal weighing mode.
4 Remove the calibration weight The display returns to zeros.
Alternative Autocalibration – To Calibrate the Balance to an Alternate External Weight:
The balance can also be calibrated with an alternate (heavier) weight than is used in the standard Cal function described above. This
alternative calibration function is done as follows.
User Action Balance Response
1 Remove any containers or weighing samples so
that nothing is on the weighing pan, then press
the TARE button
Zeros are displayed
2 Press and hold the CAL button until the beep
stops, then release the button
A series of dashes is displayed followed by a flashing LoAd.
3 Place one of the alternate calibration weights
listed in the specification table on page 13 in
the center of the weighing pan.
A solid LoAd is displayed.
After approximately 10 seconds the balance will “beep” and display the
calibration weight including decimal places. The balance is now calibrated
and in the normal weighing mode.
4 Remove the calibration weight The display returns to zeros.
If the calibration process is disturbed or compromised by environmental noise, such as vibration or air currents, or by a procedural
problem “Error” will be displayed and the balance will return to the normal weighing mode. Remove any weight from the weighing
pan and start again.
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