Automatic Tare Of Bag; Calibration - Thermo Scientific Diluflux Mode D'emploi

Chapter 2 | How to use
accuracy of the dispensing.
• If you use identical bags and want to perform another dispensing, you
can press the "go" key as soon as the new bag has been placed in the
BagOpen ® . (see § 2.6 Automatic tare of bag).
• The unit is ready to use again, either for another dispensing or for
a dilution.

2.6 Automatic tare of bag

This function allows the automatic tare of the bags. It is very useful for
running a series of dilutions with similar bag weights.
Once you have finished a dilution, the Diluflux dilutor will have recorded the
weight of the empty bag.
Taring will thus not be necessary for the next dilution. Just insert your
sample in the bag.
This function allows you to prepare in advance a series of samples in their
bags and to dilute them all one after the other. Nevertheless, please make
sure that the weight of your bags is always the same.

2.7 Calibration

2.7.1 Instructions
A calibration can be necessary when, after taring, the balance exceeds a
tolerance ± 0.1 g for weights below 100 g.
Caution:
To calibrate the unit, you must use one 500 g-calibrated weight. The unit
can NOT be calibrated with another weight.
16 | Diluflux Gravimetric Dilutor
EN
Thermo Scientific
The instructions to calibrate the unit are given on the back of the unit:
You just have to:
• Press the calibration key for two seconds. (see § 2.4)
• "0.0 g" will blink on the screen. Make sure that the platform is clean and
empty and press the "calibration" key again.
• "500.0 g" will blink on the screen, you can carefully put the calibrated
500 g weight on the platform and press the "calibration" key one more
time.
The Diluflux dilutor is calibrated and ready to use.
NB: Don't place the BagOpen on the unit
®
2.7.2 Metrological data
• Minimum sample weight: 1 g
• Maximum allowed weight: 999.9 g
• Ideal functioning temperature: room temperature
• Unit accuracy from 0 to 100 g: ± 0.1 g
• Unit accuracy from 100 to 500 g: ± 0.2 g
• Unit accuracy from 500 to 999.9 g: ± 0.3 g
For information on ISO standards:
• For weighing the sample, the ISO 7218:2007 standard states that
the accuracy must be equal to or higher than 99%. Diluflux dilutor is
weighing accuracy of 0.1 g is sufficient for sample from 10 g and above.
• For dispensing of the sample, the ISO 6887-1:1999 standard states that
adding of the diluent should be done at accuracy equal to or higher than of
95%. The Diluflux Dilutor adds diluent at an accuracy of 98% therefore is
sufficient for samples of 10 g and above.
Thermo Scientific
How to use | Chapter 2
EN
Diluflux Gravimetric Dilutor
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