Anton Paar DMA 35N Manual De Instrucciones página 18

EN
• The influence of sample temperature is compensated using the temperature
coefficient (g·cm
Examples for temperature coefficients of common samples at 20 °C:
- Most aqueous solutions 0 to 20 %: 3x10
- Most aqueous solutions 10 to 50 %: 5x10
- Many organic liquids: 10x10
- The temperature coefficient can be calculated according to the formula:
• The reference temperatures (for example 20/04) and the temperature coefficient
(g·cm ·K
-3
- The reference temperatures are entered in the unit selected (°C or °F), the
temperature coefficient always has to be entered in the unit g·cm
- If SG
each of the four digits of the temperatures can be subsequently set using short
pushes of the "store" key. Store each setting with a long push, this brings you
to the next digit.
- After setting the 2 reference temperatures, the temperature coefficient can be
set (from 0 to 19x10
long push stores the selected number. Then the instrument switches off
automatically.
g/cm or kg/m
3
Measurement of true density in g/cm
%H SO
2 4
Display of concentration of sulfuric acid (battery acid) in % by weight at 20 °C derived
from density at measuring temperature. The measuring range is 0 to 70 %w/w.
°BRIX
Display of Brix degrees (sucrose concentration in % by weight) at 20 °C derived from
density at measuring temperature. The measuring range is 0 to 100 °Brix.
20
·K ).
-3 -1
Temperature coefficient
ρ
... density at temperature t
1
ρ
... density at temperature t
2
) have to be entered.
-1
t1 / is displayed in the "SET" mode, give the "store" key a long push. Now
t2
). A short push of the "store" key increases the digit, a
-4
3
-4
-4
-4
ρ
=
----------------- -
t
3 or kg/m 3 at displayed measuring temperature.
ρ
–
1 2
– t
1 2
1
2
-3 ·K -1 .
B46IB01