Custom Adjustment; Defining An Offset - Anton Paar DMA 35 Betriebsanleitung

12.3 Custom Adjustment

You can also use any other reference liquid with a known density at 20 °C and known
temperature coefficient for your readjustment.
We recommend using the customer adjustment e.g. if you measure only liquids in a
specific density range (e.g. high density) and want to yield more accurate results in
this range.
1. Clean the measuring cell as described in Chapter 10.1 and rinse the measuring
cell until no more solvent residues are present.
2. Press <Menu> and select "Adjustment > Custom Adjustment".
3. Fill the measuring cell with reference liquid at approx. 20 °C (15 to 25 °C)
without bubbles.
4. Confirm with <OK> that the measuring cell is filled with reference liquid.
You are asked to enter the density of your reference liquid at 20 °C.
5. Using the arrow keys, select the first number and press <OK>.
6. Repeat the procedure for the other numbers and press <Save>.
7. Enter the temperature coefficient of your reference liquid and press <Save>.
The density of the filled reference liquid is now measured and compared with the
entered density for the reference liquid at 20 °C. The display shows the
calculated deviation (Delta) in g/cm
8. Press <OK> to activate the new adjustment.

12.4 Defining an Offset

You can define an offset for your measurement. This is automatically added to each
measured value. The offset value always refers to the current measuring unit and is
deleted when you change to another measuring unit. If you have selected a method,
the set offset is saved with the method.
1. Press <Menu> and select "Adjustment > Custom Offset".
2. Using the arrow keys, select the first number of your offset value and press
<OK>.
3. Repeat the procedure for all other numbers and press <Save>.
The set offset is now shown on the main screen.
TIP The offset value saved with a method can also be changed later on.
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