Mettler Toledo Densito 30P Mode D'emploi page 13

Calculation of the temperature-compensation coefficient α
- Measure density of the sample:
• at a temperature (T
1
• at a temperature (T
2
- Calculate α according to the formula:
density at T = density at T
2
or
α = ( density at T
– 1 ) : ( T
2
density at T
1
- Enter value a x 1000 into the instrument.
Note
The temperatures T and T
1
chapter 5.3).
Example
(measured) density at 26 °C (T
(measured) density at 15 °C (T
α = ( 0.7937 – 1) : (26 – 15)
0.7844
α = (1.011856 – 1) : 11 = 0.011856 : 11 = 0.001078
α
1000 = 1.078; enter this value into the instrument.
x
5.3 Temperature unit (Temp. Unit)
Data in °C or °F (selectable).
5.4 Measure Mode
Configuration of identification, stability mode and method of data storage.
Sample Name Sample identification.
A letter (a...z or space) can be set for the identification of
samples.
Stability Stability control.
Auto The result is accepted automatically when the display is stabile.
Manu Result accepted by pressing the ok/meas. key.
Mode Method of data storage.
Labo By pressing the ok/meas. key the result is saved and tranferred
(printer, PC).
Field By pressing the ok/meas. key the result is saved.
Custom User-defined setting.
Memory in
Memory out
METTLER TOLEDO Densito 30P
) above the normal measuring temperature,
) below the normal measuring temperature.
(1 + α
( T – T
• •
1 1 2
– T )
1 2
have to be entered in the selected unit (°C or °F, see
2
) 0.7844 g/cm 3
1
) 0.7937 g/cm 3
2
Save results.
Auto Save result automatically.
Manu Result saved by pressing the
ok/meas. key.
Transfer result to PC or printer.
Auto Transfer result automatically.
Manu Transfer result by pressing the
key.
Menu (menu)
))
11