MS-70 / MX-50 / MF-50 / ML-50
43
8.2. Test Sample (Sodium Tartrate Dihydrate)
---Test sample (Sodium tartrate dihydrate, Na
2
C
4
H
4
O
6
•2H
2
O )---
Sodium tartrate dihydrate is used to check the accuracy of measurement for the
analyzer.
As an ideal substance on theory, sodium tartrate dihydrate includes moisture
content of 15.66% in the molecule. But the moisture content may change due to
conditions of storage.
The moisture content of 15.0 to 16.0% is obtained by the method below.
(Unit % is based on wet sample)
Sodium tartrate is contained in food (example : wine). If it may irritate the eyes and
nose, wash with water.
The test sample can not be used repeatedly. Dispose of it as flammable matter.
In case of MS-70 MX-50 and MF-50, test sample is included in these packing list.
In case of ML-50, purchase the test sample of accessory.
Caution A hot sample pan may cause an error. Allow the pan to cool before the next test.
Measurement
1. Enter the following parameters.
Analysis mode ...................................... Standard mode (Symbol:
5td
)
Drying program Heating pattern............Standard drying (
)
Drying temperature .....160°C
ACCURACY ......................................... MID.
Sample
quantity.................................... Approximately 5 g is selected by
ACCURACY automatically.
Measurement
unit ......................................Moisture content
2. Pre-heating
process.
Put a sample pan, instead of a sample, on the pan.
Press the
START
key to heat it. The analyzer
temperature becomes equilibrium.
3. Press
the
RESET
key to make zero display.
Spread the sample as evenly as possible.
4. Press
the
START
key to start the measurement.
The result is displayed after 8 minutes normally.
If the results is between 15.0 to 16.0%, the analyzer
works properly.
5. Press the following key to complete the measurement.
ENTER
key......Outputs (Prints) the results.
SELECT
key ....Returns to the weighing mode.
RESET
key......Returns to the weighing mode and
displays zero.
15.80
%
Result
or
,
0.000
g
No good
Good
Pre-heating process
% MOIST
D
/W
/D
