Stabilization, Auto range (ap250 and e only), Weighing – Ohaus AP250E ANALYTICAL Plus Electronic Balances User Manual

Page 20: Taring, Operation

Stabilization

Before initally using the balance, allow time for it to adjust to its new environment. The
balance only requires to be plugged in to warm up. Recommended warm up period
is twenty (20) minutes. The balance is powered whenever it is plugged into a power
source.

Auto Range (AP250D and E Only)

Modes AP250D and E offer both a fine range (0.01 mg readability from 0 to 52 g) and
a coarse range (0.1 mg over 52 g). When first turned on, the balance is in the fine range.
It remains in this range until the weight on the pan exceeds 52 g. When weight on the
pan is greater than 52 g, the balance switches to the coarse range.

If weight on the pan falls below 52 g, it automatically switches back to the fine range.

Weighing

to rezero the display.

2. Place the object(s) or material to be weighed on the pan.

3. Wait for the stability indicator to appear before reading the weight.

STABILITY INDICATOR

CAPACITY GUIDE

NOTE

NOTE: The capacity guide (bars) indicates the percentage of the current weight to
the balance capacity. The example above illustrates a 200 gram weight, (balance full
capacity 210 grams).

Taring

When weighing material or objects that must be held in a container, taring stores the
container weight in the balance’s memory, separate from the weight of the material in
the container.

1. Place an empty container on the pan. Its weight is displayed.

, the display blanks until stable weight readings are received, then

indicates zero. The container’s weight is stored in memory.

3. Add material to the container. As material is added, its net weight is displayed.

4. Removing the container and material from the pan will cause the balance

to display the container’s weight as a negative number.

resets the balance to zero.

OPERATION