+15°C to +25°C and saves calibration data when being switched off.
Note! For work with other type tubes (e.g. with different outer diameter, bottom shape or
different material, e.g. transparent plastic tubes) it is necessary to perform
calibration in the specified tubes.
Perform calibration in the following sequence from the lower calibration value to the higher
values: 0.5, 1.0, 2.0, 3.0, 4.0, and 5.0.
To perform calibration:
3.4.1. Switch ON (position I) the unit with the Power switch (Fig.1/u) on the rear panel.
3.4.2. Press the Select button (fig.1/w) on the rear panel (use a thin pin of maximum diameter 2
mm for pressing the Select and Install buttons). A flashing "0.5" indication will be shown on
the display, showing that the unit is ready to save calibrations value of the first point 0.5 McF.
3.4.4. Press the Install button using a pin (fig.1/x). First point “0.5” will be saved in the unit memory
and the next calibration value will be displayed (flashing 1.0 indication will be displayed).
3.4.5. Repeat steps 3.4.3 - 3.4.4 until the calibration is completed (1-5 times, i.e. as many times as
many points the chosen calibration curve has).
3.4.6. If a standard is not available, press the Select button for the next calibration value to be
displayed.
3.4.7. After installing the last standard value “5.0”
3.4.8. After finishing the calibration switch OFF the unit using the Power switch (position O).
Disconnect the external power supply unit from electric circuit.
3.5
An adapter D16 must be used for work with tubes which have external diameter 16 mm.
Insert the adapter into the tube socket (fig.2/v), perform calibration.
Use at least 2 points for calibration.
Note! Shake the tube with the standard solution, if necessary (it is recommended to use
a vortex mixer, e.g. Personal Vortex V-1 plus, for shaking).
3.4.3. Insert the tube with the standard solution, corresponding to the calibration point value, into
the socket of Densitometer (fig.2/u).
Note! It is recommended to calibrate as many points as possible to obtain precise
results. The minimum requirement is to calibrate 2 points closest to the working
range limits (e.g. 0.5 and 5.0 for operation in 0.5 - 5.0 McF unit range).
or skipping it (the Select button), the unit exit the
calibration mode automatically. The unit is ready for operation.
Note! If pressing the Install button during the calibration process does not cause
switching to the next standard value, it means that the currently inserted in the
densitometer socket standard has lower turbidity value than the previous
standard. The reason is that the inserted standard solution turbidity does not
correspond to the required value (the standard needs to be shaken or replaced).
Installation of adapter D16
Page 6 DEN-1
Operating instructions
Version 1.03 - July 2013
