Ohaus NBF1A2 Navigator Balances - Manual (Page 70)

7
TM
3.2 Turning On the Balance
The balance is ready to operate after the installation procedures are performed. When the balance is first turned on
and it completes its checks, it can be used to weigh or tare materials without setting the menus.
It is recommended that you read this manual carefully and set the balance to operate for your specific applications
using the procedures in Chapter 4 Setting up Your Balance and calibrate the balance before using.
In this section, you will enter the menu for the first time. Do not worry if you are unfamiliar with the function of the
buttons on the panel, the display provides the necessary coaching as you go along.
Power On/Off
To turn the balance ON, press the ON/OFF button
(circled button with an I inside) located at the upper left-
hand corner of the panel once. To turn OFF, press button
again.
NOTE: If the balance has been battery operated for a
long period of time, and the batteries are low, the balance
displays LOWBAT. Turn the balance OFF. Remove the
batteries and replace.
Stabilization
Before initially using the balance, allow time for it to
adjust to its new environment. Recommended warm up
period is 5 minutes. The display will countdown during
warmup.
Calibration
Refer to paragraph 3.3 and calibrate the balance before
proceeding.
3.3 Calibration
Navigator balances offer a choice of two calibration methods: Span Calibration, and Linearity Calibration.
• Span - Span calibration ensures that the balance reads correctly within specifications using two
weight values: zero and a weight value at 50% of full capacity and or 100% of the balance’s
full capacity.
• Linearity - 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 balance's weighing range, and a weight value at or near the balance’s specified capacity.
Calibration Masses
Before beginning calibration, make sure masses are
available. 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 required to perform the procedures
are listed in the adjacent table and are available as
accessories.
NOTE:
Either of the calibration modes can be terminated
at any
time by pressing either the Mode, Units or Setup
buttons.
CALIBRATION MASSES
LINEARITY SPAN ONLY
CAPACITY MASSES MASSES
610g 200g and 600g 600g
6100g
2000g and 6000g 6000g
It is recommended that masses meet or exceed
ASTM Class 4 Tolerance. Calibration masses are
available as accessories.
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Print
Mode
Setup
Units
TM
Enter
On/Off
G/N/T
Zero Tare
Stable
Center
of Zero
g
B/G