+
Comply with all notes on correct vacuum and electri-
cal connections; see section „Use and operation“, pg.
+
Do not use the pump to generate pressure.
+
The pumps are designed for
ambient temperatures
during operation b50°F and +104°F (+10°C
and +40°C). Periodically check maximum tempera-
tures if installing the pump in a cabinet or a housing.
Make sure ventilation is adequate to maintain recom-
mended operating temperature. Install an external au-
tomatic ventilation system if necessary. If pumping hot
process gases, make sure that the maximum permitted
gas inlet temperature is not exceeded. The maximum
permitted gas inlet temperature depends on several
parameters like inlet pressure and ambient tempera-
ture (see „Technical data“, pg. 24).
+
Particles and dust must not enter the pump.
+
Do not pump liquids.
• Ensure that the pump is chemically resistant to the
pumped substances prior to operation.
Use the equipment
only as intended
, that is, for genera-
tion of vacuum in vessels designed for that purpose. Any
other use will automatically invalidate all warranty and li-
ability claims. Remain aware of safety and risks.
Setting up and installing the equipment
➨
Equipment must be connected only to a
suitable elec-
trical supply
and a suitable ground point. As such, the
plug (pumps with AC motor) must be plugged into an
outlet that is properly grounded. Provide a slow blow
fuse according to the electrical supply (see „Techni-
cal data“, pg. 24). Failure to connect the motor to
ground may result in deadly electrical shock.
NOTICE
Summary of Contents for MD 1
Page 27: ...page 27 of 72 MD 1 MD 1 C US pump with dual voltage motor 4 9 8 7 5 6 3 2 1 2 1 2 1 ...
Page 28: ...page 28 of 72 MD 1 VARIO SP Ensure sufficient venting of the pump 9 5 6 7 10 ...
Page 53: ...page 53 of 72 1 2 1 2 3 15 mm 4 6x size 2 2x 1 ...
Page 54: ...page 54 of 72 4 5 6 20696264 Clean ...
Page 55: ...page 55 of 72 Replacing the diaphragm 7 8 9 1 2 ...
Page 56: ...page 56 of 72 3 10 11 12 Pay attention to number of washers ...
Page 57: ...page 57 of 72 13 14 15 1 2 Pay attention to number of washers ...
Page 58: ...page 58 of 72 Replacing the valves and assembling the pump heads 16 17 18 4x ...
Page 60: ...page 60 of 72 22 23 16 15 24 1 2 Maintain all pump heads in the same way 15 16 mm size 2 2x ...