C 25
When the FilterMax C 25 has been installed and
during maintenance work the earthing shall be mea-
sured.
9
EARTH CONTROL MEASUREMENT
Earth control measuring must only be done
by a person with necessary knowledge.
IMPORTANT!
All metal parts of the filter unit must be
earthed reciprocally and connected to earth.
The measuring is done between GND (see page 7)
and the following components on FilterMax C 25. Dis-
connect protection earth from GND before measuring.
1. Filter module
2. Door
3. Dust container
4. Filter cartridges (only antistatic Poly Web filter)
Reconnect protection earth to GND.
Nederman FilterMax C 25 separates for instance
welding fume, metal oxides, talcum, lime stone, paint
powder and grinding dust.
FilterMax C 25 must not be used for separating
explosive contaminations.
Explosive dusts are dry organic dusts and some
metallic dusts. The metallic dusts are, for example,
aluminium, magnesium, titanium, chromium and
fine virgin dusts of other metals. Welding fumes from
these metals are not explosive, but grinding dust is a
problem. Please contact your Nederman representa-
tive in case of doubts.
Various combinations of semi combustible fumes/
dusts (oil, grease) and sparks can cause fires when
grinding or welding. The most important action is to
prevent sparks from entering the extraction devices.
Secondly it is very important to perform regular clea-
ning of the extraction arms/devices and the
duct system.
FilterMax C 25 does not separate gases.
APPLICATIONS
WARNING!
Risk of personal injury!
• In some countries the purified air must not be recycled in
the workshop if FilterMax C 25 is used to separate welding
fume or some contaminations that may be a health hazard.
Risk of fire or explosion!
• Do not use FilterMax C 25 to separate explosive
fume or dust.
• Grinding, welding or other hot works on the filter exterior
or inlet must not be done without cleaning and stopping
the operation.
• Connect a fire alarm to FilterMax C 25, which means
the filter will stop at a possible fire.
• Care should be taken when working with painted or oiled
material. Consult your Nederman representative
for advice.
• FilterMax C 25 must not be exposed for burning/glowing
material.
• At high risk of fire a fire extinguisher should be installed.
Total pressure
(Pa)
FAN DIAGRAM
Air flow (m
3
/h)
clean filters
Working pr
essur
e
