Operating Environment - Hach DR 3900 Manuel D'utilisation De Base

Operating environment

Note the following points so that the instrument will operate perfectly and
have a long service life.
Place the instrument firmly on an even surface. Do not push any
•
objects under the instrument.
The ambient temperature must be 10–40 °C (50–104 °F).
•
The relative humidity should be less than 80%; moisture should not
•
condense on the instrument.
Leave at least a 15 cm clearance at the top and on all sides for air
•
circulation, to avoid overheating of electrical parts.
Do not operate or store the instrument in extremely dusty, humid or
•
wet locations.
Keep the surface of the instrument, the cell compartment and all
•
accessories clean and dry at all times. Immediately remove
splashes or spilt materials on or in the instrument.
N O T I C E
Protect the instrument from extreme temperatures from heaters, direct sunlight
and other heat sources.
English 7