Calibration menu, Calibration menu protection, Calibration weights – Ohaus JR Series Electronic Balances User Manual

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CALIBRATION WEIGHTS

LINEARITY

SPAN ONLY

MODEL

WEIGHTS

WEIGHT

JR120

50g, 100g

100g

JR200

100g, 200g

200g

JR400

200g, 400g

400g

JR400D

50g, 400g

400g

JR600

200g, 500g

500g

JR4K

2kg, 4kg

4kg

JR2K

1kg, 2kg

2kg

JR4KD

500g, 4kg

4kg

It is recommended that masses must
meet or exceed ASTM Class 1 Toler-
ance. Calibration masses are available
as accessories.

CALIBRATION MENU

Precision Standard 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 Weights

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

Calibration Menu Protection

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

NOTE

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

CALIBRATION MENU TABLE

Selects span calibration.

Selects linearity calibration.

Used to exit the Calibration menu.