Sartorius LP Models - Repeatability Determination (reproTEST); reproTEST Definition and Purpose; Performing the Balance Reproducibility Check

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Check the Reproducibility of the Balance
Step Key (or instruction) Display/Output
1. If parameter 1 9 11 is set
(reproTEST), proceed with step 4.
2. Access the Selection Mode for q
calibration/adjustment
3. Select reproTEST selec. soft key v
4. Start reproTEST q
Number of measurements
is displayed
6 measurements will now
be performed
The standard deviation is displayed
5. End reproTEST End soft key v
or restart reproTEST reprotest soft key
Determination of the
Repeatability (reproTEST)
Definition
Repeatability (reproducibility) is the
ability of the balance to display
identical readouts when it is loaded
several times with the same weight
under constant ambient conditions.
The standard deviation for a given
number of measurements is used to
quantify the repeatability.
Purpose
The “reproTEST” function automa-
tically calculates the repeatability of
results (based on 6 individual
measurements). In this way, the
balance determines one of the most
important quantities in relation to
the place of installation. The results
are displayed with the balance’s
accuracy.
Preparation
● Turn on the balance:
Press e
> All display segments light up
briefly
● Select reproTEST in the Setup
menu: Press M
● Select Menu:
Press w (menu softkey)
● Select either 1 9 11 (reproTEST)
or 1 9 12 (selection mode):
See “Configuring the Balance.”
● Exit the Setup menu:
Press M