Weighing in the IQ-Mode*
(Load-Dependent Readability)
In the IQ-mode, weighing is done with a load-
dependent readability of 0.1% (for different settings,
see part 2, “Balance Operating Menu”) throughout
the entire weighing range of the balance. The display
resolution of the last digit changes in increments of 1,2,
5,10,20, etc., in proportion to the weight of a sample.
Oftentimes, a display accuracy of 2 grams
is sufficient for a load of approx. 2 kg. In this case, it
makes sense to select
weighing range R 2 with an
accuracy of 0.1% by pressing the
w
key (8)
. While
you are filling up to a target weight, it is certainly
easier to work with a target of 2220 g than with an
absolutely accurate readout of 2219.92 g.
By selecting the IQ-mode for automatic adaption
of the display accuracy, you will obtain stable weight
readouts even faster.
In daily laboratory routines, analyses must often be
performed with a certain accuracy. The IQ-mode
meets this requirement – on an analytical balance, it
gives you the full accuracy of all 4 decimal places for
initial sample weights below1g, whereas for heavier
samples (of 100 g or more), it provides a lower
readability, which is sufficient:
Initial sample weight Readout
Below
1 g
→
0.9876 g
Above 100 g
→
123.4
g
For other readabilities (0.01% – 1%) see page 2–11
of the “Balance Operating Menu.”
* = not applicable to verified balances approved for
use as legal measuring instruments in Europe; on
GC 1201G scales, menu code 3 2 9 must be set
1–18
