Dräger REGARD 39 0 Series Instructions For Use Manual page 56

Installation & commissioning
2. Remove the two screws from the cover (5 mm hexagonal key) and open the
front cover.
3. Carry out the necessary installation, repair or maintenance work.
4. Check the sealing ring and close the front cover.
5. Insert the two screws into the cover and secure.
5.2 Positioning and mounting the control unit
Follow the following instructions for the installation location:
– Mount the control unit where that it is easily accessible and the display and
readings are clearly visible.
– Avoid areas where excessive vibrations (frequency above 55 Hz or amplitude
above 0.15 mm) can occur.
– Avoid areas where highly aggressive or corrosive gases, dirt or contaminants
can damage the electronics.
– Temperature conditions: 0 to 55°C.
– Relative humidity: REGARD
REGARD
5.2.1 REGARD
A
B
C
Mounting diagram (not to scale)
®
3900/3920 - 0 to 100%, non-condensing;
®
3910 - 0 to 95%, non-condensing.
®
3900 and 3920
M6 x 10 mm threaded hole
Mounting hole
Suspension
®
REGARD 3900