Calibration menu, Calibration menu protection, Calibration weights – Ohaus TP Series Electronic Balance User Manual

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CALIBRATION MENU

Precision Plus balances can be calibrated in two ways: Span calibration or Linearity
calibration. Span calibration resets the balance’s weighing range using two weight
values: zero and a weight value at or near the balance’s capacity. Linearity calibration
minimizes deviation between actual and displayed weights within the balance’s
weighing range. Three weight values are used: zero, a weight value within the
balances weighing range, and a weight value at or near the balance’s specified
capacity. The following table shows the sequence in which submenus appear on the
Calibration menu.

CALIBRATION MENU TABLE

Selects span calibration.

Selects linearity calibration.

Used to exit the Calibration menu.

Calibration Menu Protection

Calibration may be locked out to prevent
unauthorized personnel from changing
calibration. To lock out calibration menu,
refer to the section titled Menu Lock-Out
Protection.

NOTE

NOTE: If calibration has been locked out,
you will not be able to access it.

Calibration Masses

Before beginning calibration, make sure
masses are on hand. If you begin calibra-
tion and realize masses are not available,
either turn the balance off, or go through
the procedure without masses. The bal-
ance will use previously stored calibration
data. Calibration should be performed as
necessary to ensure accurate weighing.
Masses required to perform the proce-
dures are listed in the adjacent table.

CALIBRATION WEIGHTS

LINEARITY

SPAN ONLY

MODEL

MASSES

MASS

TP200

100g, 200g

200g

TP400

200g, 400g

400g

TP400D

50g, 400g

400g

TP600

200g, 500g

500g

TP2K

1kg, 2kg

2kg

TP4K

2kg, 4kg

4kg

TP4KD

500g, 4kg

4kg

Masses must meet or exceed ASTM
Class 1 Tolerance. Calibration masses
are available as accessories.