Operating instructions

METTLER TOLEDO DE40/50/51 Density Meter 41
9.3 Temperature compensation
This section describes how to set the temperature compensation. It allows to measure the
sample at one temperature and compensate the result to another temperature. There are
three main applications which use this temperature compensation:
- The sample is to viscous to be introduced into the measuring cell or even solid (e.g. paraffin).
Therefore you need to heat the sample up to get it liquid enough to introduce it into the
measuring cell (e.g. 60 °C) but you want to get the density at 15 °C.
Note: for one special application there is already an Application Memory Card available
which allows to measure OIL products at any temperature and get the density at
15 °C or 60 °F. See section 14.1 "API software" for more information.
- Speed up the measurement. For example, if your sample comes at 40 °C and you have to
get the density at 20 °C you can set the measuring temperature to 40 °C and compensate
the result to 20 °C (provided you know the slope of the density against temperature of your
specific sample).
- The reference temperature is out of the instrument range. For example if you have to get the
density at 100° C (maximum measuring temperature of the DE50 is 70 °C). You can set the
measuring temperature to 70 °C and compensate the result to 100 °C (provided you know
the slope of the density against temperature of your specific sample).
Press the <Calc.Para> key.
Select "3.Temperature Compen-
sation". Confirm with <ENTER>.
Select "On" with the → key. Confirm
with <ENTER>.
Enter the temperature at which you
want to have the result.
Calculation parameters
Method 0 < Calc.Parameter >
0.Density
1.Result
2.Temperature Compensation
3.Decimals
Method 0 < Temp.Comp>
Temp.Comp. : Off On
Exit :[Execute]
Method 0 < Temp.Comp>
Temp.Comp. : Off On
Comp.Temp. :[ 20.00]°C
Temp.Formula :<A+Bx >
Parameter Set :Table Coefficient
Data No.(2-30) : 20]