Beep; Lcd-Contrast; Automatic Switch-Off (Power); Software Version (Version No.) - Mettler Toledo Refracto 30P Bedienungsanleitung

5.6

Beep

Off Beep off.
On Beep on.
5.7

LCD-Contrast

Display contrast adjustable to one of 9 levels with the
5.8

Automatic switch-off (Power)

Off Automatic switch-off off. The instrument must be switched off manually.
On The instrument switches off automatically if not operated for 10 min-
utes.
5.9

Software version (Version No.)

The software version is displayed.
6

Measurement (measure)

6.1

Procedure for proper measurement

- Ensure that the prism and the measuring cell are clean before each measure-
ment. Insufficient cleaning leads to remains on the prism and, therefore, incor-
rect results.
- Check the sample for chemical resistance of the following materials:
• Prism:
• Measuring cell: Stainless steel SUS 316
• Housing:
- Ensure that the samples to be measured
• have reached more or less ambient temperature
• are homogeneous. Viscous and highly concentrated liquids have to be mixed
thoroughly before a sample is taken or a measurement is carried out.
• can be dissolved with a solvent suitable for cleaning the measuring cell.
- Adjust the instrument at regular intervals (see chapter 7).
6.2

Pipetting the sample onto the measuring cell

- Pipette the sample onto the measuring cell. The measuring cell has to be filled
up to the mark.
METTLER TOLEDO Refracto 30P
Menu (menu) / Measurement (measure)
Glass
PBT (polyester)
keys.
11