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

5.6

Beep

Off Beep off.
On Beep on.
5.7

Backlighting and LCD-Contrast (LCD)

Backlighting
The backlighting is turned off automatically 5 seconds after the last time a key
has been pressed (Auto off), or it is always off (Always off).
Contrast
Display contrast is 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 minutes.
5.9

Software Version (Version No.)

The software version is displayed.
5.10 Date and Time (Date & Time)
The settings for date and time can be edited here. The date is displayed in the
format year/month/day (e.g. 2003/03/04 for March 4, 2003). Both date and
time are included in the data transfer to a printer or computer.
5.11

Identification

An identification consisting of 10 letters and numbers (instrument name, user,
etc.) may be entered here. This identification will be included in the data transfer
to a printer or computer.
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 (Refracto 30GS: gold)
• 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).
METTLER TOLEDO Refracto 30PX/GS
Menu (menu) / Measurement (measure)
Glass (Refracto 30GS: sapphire)
PBT (polyester)
keys.
11