ALTANA LCM plus - Manual (Page 3)

BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
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A3 Instrument Set-Up
Unwrap the instrument carefully and check it for missing parts (delivery note). Please keep the
packing box to pack the instrument safely in case it has to be transported again later.
LCM plus should be placed on a level desk surface. The instrument comes with a power supply
unit and adapter for the socket (100 – 240 Volt / 47 – 63 Hz) and is turned on by either pressing
the OK-key or the grey menu key.
Do not turn on and off too fast. Wait for 20 seconds before turning on again not to damage the
electronic or mechanic system of the instrument.
The blue lamp protection cover on the upper left part of the instrument serves to carry the heat
off the lamp and must not be covered.
As LCM plus is a sophisticated optical instrument, avoid the following at any rate:
•
Do not use the instrument in direct sunlight.
•
Do not allow water, inflammable or metallic objects to enter the instrument.
•
Do not put filled cuvettes or heavy objects on the housing.
•
Do not use the instrument in excessively moist, dusty or vibrating surroundings.
•
Do not open the instrument. There are no parts in the housing for the user to check.
•
If you have any questions of problems, please contact with our offices in Düsseldorf or
one of our service stations (see page Fehler! Textmarke nicht definiert.).
A4 Reference Standards
In general, an absolutely transparent medium similar to the sample serves as a calibration or
reference standard for coloriemtry on the transmission principle. To measure the colour of liquids,
distilled water is filled into a cuvette similar to the measuring cuvette and used as a reference
standards. In some exceptional cases where the density of the substance to be emasured differs
from that of the distilled water, calibration is made against a colourless measuring medium.
Calibration assigns the reference standard a transmission of 100% (or Iodine number = 0, Hazen
= 0, etc.). As this assignment never changes, 100 no calibration value needs to be set for LCM.
Instead, just fill a cuvette with the reference standard and put it into the cuvette compartment to
perform calibration.