79
Operating the Scale
Determination of the
Repeatability (reproTEST)
Definition
Repeatability is the ability of the
scale to display identical readouts
when it is loaded several times
with the same weight under constant
ambient conditions (also called
“reproducibility”).
The standard deviation for a given
number of measurements is used
to quantify the repeatability.
Purpose
The “reproTEST” function auto-
matically determines the repeatability
of results (based on 6 individual
measurements). In this way, the scale
determines one of the most important
quantities in relation to the place of
installation. The results are displayed
with the scale’s accuracy.
Preparation
§ Turn on the scale:
Press e
> The Sartorius logo is displayed
> The scale performs a self-test
§ Select reproTEST in the Setup
menu: Press M
FC Models:
§ Select the Scale menu:
Menu soft key
FCA Models:
§ Select
Calibration/adjustment:
CAL-key function:
Press the O q keys
§ Select either reproTEST
or Selection mode
(factory setting): see “Configuring
the Scale”
§ Exit the Setup menu:
Press the oo soft key
Check the Reproducibility of the Scale
Step Key(s) (or instruction) Display/Output
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1. If
reproTEST is set: isoTST soft key
and proceed with step 4.
If Selection mode is set: isoTST soft key
2. Select reproTEST Select soft key
3. Start reproTEST
Start soft key
4. Number of measurements
is displayed; 6 measurements will
now be performed
The standard deviation
is displayed
5. End reproTEST End soft key
or restart reproTEST Start soft key
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