Section 2 general information, 1 safety information – Hach-Lange DR 3900 User Manual User Manual
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Section 2
General Information
2.1
Safety information
Read through the entire user manual carefully before you unpack 
the device, set up and put into operation. Pay attention to all 
danger and caution statements. Failure to do so could result in 
serious injury to the operator or damage to the equipment. 
To make sure that the protection provided by this instrument is 
not impaired, do not use or install this instrument in any manner 
other than that specified in these operating instructions.
Note: Information that supplements points in the main text.
2.1.1
Precautionary labels
Read all labels and tags attached to the instrument. Personal 
injury or damage to the instrument could occur if not observed. 
For symbols attached to the instrument, corresponding warning 
notes are found in the user manual. 
2.1.2
RFID module (not available on all models)
RFID technology is a radio application. Radio applications are 
subject to national conditions of authorisation. The use of the 
DR 3900 (model with RFID module) is currently permitted in the 
following countries: EU, CH, NO, HR, RS, MK, TR, CY, US, CA, 
AU, NZ. The manufacturer advises that the use of the DR 3900 
(model with RFID module) outside of the above-mentioned 
D A N G E R
Indicates a potentially or imminently hazardous situation that, if not 
avoided, results in death or serious injury.
WA R N I N G
Indicates a potentially or imminently hazardous situation that, if not 
avoided, may result in death or serious injury.
C A U T I O N
Indicates a potentially hazardous situation that may result in minor or 
moderate injury.
N O T I C E
Indicates a situation that, if it is not avoided, can lead to damage to 
the device. Information that requires special emphasis. 
This symbol may be attached to the device and references the operation- and/or safety notes in the user manual.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal 
systems after 12 August 2005. In conformity with the applicable provisions, consumers in the EU must return old 
electrical equipment to the manufacturer for disposal from this date, at no charge to the user. 
Note: For return for recycling, please contact the equipment manufacturer or supplier for instructions on how to 
return end-of-life equipment, manufacturer-supplied electrical accessories, and all auxiliary items for proper disposal.
