Ohaus GT4100DG Electronic Balances - Manual (Page 18)

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NOTE NOTE NOTE NOTE NOTE: Cal Span, Cal Linearity
and Cal User are disabled for
Type Approved/LFT balances.
CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU
Precision Advanced balances features CalTest TM which offers a choice of three
calibration methods: Cal Span, Cal Linearity, and Cal User. Cal Span Cal Span Cal Span Cal Span Cal Span calibration
ensures that the balance reads correctly within specifications using two weight values:
zero and a weight value at either 25%, 50%, 75% of or at the balance’s full capacity.
Cal Linearity Cal Linearity Cal Linearity Cal Linearity Cal Linearity calibration minimizes deviation between actual and displayed weights
within the balance’s weighing range. Three weight values are used: zero, a weight
value at midpoint of the balances weighing range, and a weight value at or near the
balance’s specified capacity.
Cal User Cal User Cal User Cal User Cal User is a method where the balance can be
calibrated using a mass of known value by entering that value into the balance. Cal Cal Cal Cal Cal
Test Test Test Test Test allows the stored calibration data to be tested against the current mass being
used for the test. The following figure illustrates the sequence in which submenus
appear on the Calibration menu. Item shown bolded is a default setting.
CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU
CAL SPAN
0, 25%, 50%, 75% or Span Weight (100% 100% 100% 100% 100%).
CAL LINEARITY
0, Linearity & Span Weight.
CAL USER
Enter #
CAL TEST
0, Span Weight.
END, Calibration
Calibration Menu Protection Calibration Menu Protection Calibration Menu Protection Calibration Menu Protection Calibration Menu Protection
NOTES NOTES NOTES NOTES NOTES:
1. Calibration may be locked out to prevent unauthorized personnel from changing
calibration. If calibration has been locked out, you can only access Cal Test.
2. To lock out calibration menu, after calibration, refer to the section titled Menu
Lock-Out Protection.
Calibration Masses Calibration Masses Calibration Masses Calibration Masses Calibration Masses
A 2kg and 4 kg mass are required for calibration. If you begin calibration and realize
calibration masses are not available, exit the menu. The balance will retain previously
stored calibration data. Calibration should be performed as necessary to ensure
accurate weighing. Masses must meet or exceed ASTM Class 1 Tolerance. Calibra-
tion masses are available as accessories.