Tutorial; Inserting Batteries; Setting Date And Time; Adjustment - Mettler Toledo Refracto 30PX Bedienungsanleitung

Tutorial

4 Tutorial
4.1

Inserting batteries

- Open the battery compartment cover on the backside of the Refracto by turning
it counterclockwise with a coin.
- Insert batteries into the battery compartment, observing correct polarity.
- Close the battery compartment cover by turning it clockwise with a coin.
The instrument switches on automatically and is immediately ready for operation.
The battery lifetime is approximately 60 hours with the backlighting turned off (at
1 measurement per minute). If nothing appears in the display: Check polarity of
the batteries.
4.2

Setting date and time

- Press ok/measure and esc simultaneously to enter the menu.
- Press repeatedly until Date & Time appears in reverse display.
- Confirm
Date & Time
- Confirm
Date
- Use the and
or keys to change it. Confirm with ok/measure.
key to switch to Time and confirm with ok/measure. Set the time
- Use the
as described above.
- Press esc to leave the menu.
4.3

Adjustment

- Put the instrument on a table.
- Pipette some drops of water onto the measuring cell. Press and hold the
key until CALIB (Water)
automatically (duration: several seconds). After adjustment is completed, the
measured deviation from the theoretical value and Execute ? (
- If the measured deviation is > 0.0005: Dry the measuring cell and clean it
with a cleaning tissue. Press the ok/measure key and repeat the step above.
- Press the or
- Press the ok/measure key.
The adjustment is confirmed.
4.4

Cleaning

Remains of the sample on the prism reduce the accuracy of the Refracto mea-
surements. The Refracto therefore must be cleaned carefully after each measure-
ment.
- Clean the measuring cell with a cleaning tissue to remove remains of the
sample completely.
6
with the ok/measure key.
with the ok/measure key to change the date.
keys to choose the number to be changed, then use the
appears in the display. The instrument adjusts
key. Execute ? (
) appears.
Yes
METTLER TOLEDO Refracto 30PX/GS
) appears.
No