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FDL (E2.1) 02/2019 page 11/76
• Monitoring the stream of exhaust air during prepurge
The chamber complies with the requirements on monitoring the pressure switch according to EN
1539:2015 and EN ISO 13849:2015.
The fan only turns on after pressing pushbutton “START” (4).
After approx. 2 minutes of prepurge with monitoring the stream of exhaust air the heating turns on.
• Door switch
If the door is opened briefly (less than 2 minutes) the heating turns off. When opening the door for
longer than 2 minutes, fan and heating turn off. To restart the drying process in this case, new pre-
purge is required.
• Safety in case the technical ventilation fails
The heating only turns on if the air circulation is already in operation.
If the air circulation fails, the heating immediately turns off. In addition, there is a visual signal: red indi-
cator light “AIR” (3). As an additional indication there is an acoustical signal which can be reset on the
controller.
• Moving parts participating in the work process
It is impossible to touch the fan from outside the device or from the interior.
• Safety, measurement and control devices
The safety, measuring, and control equipment is easily accessible via the housing top cover.
• Electrostatic charge
The interior parts are grounded.
• Protection against touchable surfaces
Tested according to EN ISO 13732-1:2008.
• Floors
See operating manual chap. 3.4 for the oven’s installation.
• Ventilation
Ventilation shall be realized by the operator according to GUV-R 500 chap. 2.29 “Verarbeiten von
Beschichtungsstoffen” (Processing of paints) (for Germany).
• Cleaning
See operating manual chap. 14.
• Examinations
The safety drying oven has been inspected by the “Deutsche Gesetzliche Unfallversicherung e.V.
(DGUV), Fachausschuss Nahrungs- und Genussmittel, Prüf- und Zertifizierungsstelle im DGUV Test“
(German Social Accident Insurance (DGUV), Expert Committee: “Metal and Surface Treatment”, Test-
ing and Certification Body in DGUV) and bears the GS mark.
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