Vevor RE-501 handleiding

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Handleiding

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must be electrified after adding water. Temperature control scale 0-99 ā„ƒ It
is available for reference. For the thermal inertia of the existence of the
actual temperature than the set temperature at 3 degrees, can use the
correct settings, such as: you need the water temperature of 40 degrees,
the thermostat set at 38. For accurate water temperature, please measure
it directly with a thermometer. The rotating bottle invades 1/3 - 1/2 in water.
4. Rotation: Open the electronic control box switch, adjust the rotation
twist to the
best evaporation speed. Pay attention to avoid the water bath vibration
fluctuation.
5. Connect the cooling water.
6. Reclaim solvent: Turn off the vacuum pump, open the feed switch and
release the gas, open the discharge piston and release the solvent in the
collection bottle.
Two matters of attention:
1. On the degree of vacuum:
The vacuum degree is the most important process parameter of the rotary
evaporator, and the user often meets the problem of the vacuum. This is
often related to the nature of the solvent used. Biochemical industry and
pharmaceutical industries often use water, ethanol, acetone, acetic acid,
ethyl ester, ether, petroleum ether, chloroform and toluene as solvent, while
general vacuum pumps can not withstand strong organic solvents, and
special vacuum pumps with strong corrosion resistance can be selected.
(Recommend the use of water circulating vacuum pump.)
It is a simple method to check the leakage of the instrument - clamp the
external
vacuum tube and observe the vacuum meter on the instrument. If there is
air leakage, check the validity of the seal joint and the seal ring on the
rotating shaft (see maintenance). If the instrument is normal, the vacuum
pump and the vacuum pipe should be checked.
2. On the temperature rise of the motor:
The electric motor of this instrument is E grade insulation, and the windings
are

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Productinformatie

MerkVevor
ModelRE-501
CategorieNiet gecategoriseerd
TaalNederlands
Grootte10546 MB