Running Experiments
TA I
NSTRUMENTS
TGA 29503–10
Automatic Tare
Because the TGA 2950 has two weight ranges,
taring is done for both ranges. The tare weight is
stored by the instrument for the appropriate
weight range.
1. Place the empty sample pan on the sample
platform.
2. Press the TARE key on the instrument
keypad. The TGA will automatically load
the pan, raise the furnace (to protect the pan
from air currents), weigh the pan, store the
weight as the offset for each weight range,
and unload the pan.
Manual Tare
Manual tare operates in the weight range indi-
cated, by storing the current reading as an offset,
and estimates the tare weight for the other
weight range (typically the 1-gm range). The
estimate is accurate if the TGA 2950 has been
tared or weight-calibrated recently.
1. Place the empty sample pan on the sample
platform.
2. Press the LOAD key to load the pan onto
the balance.
3. Press the FURNACE key to close the
furnace, to protect the pan from air currents.
4. Observe the weight reading on the
controller's Signal Display window (Signal
A Weight).
5. Wait for the Signal A Weight to stabilize,
and then choose Auto Zero to store the
displayed weight as the offset.
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