M&C TechGroup N9 KP18 Operator's manual - Manual (Page 14)

14
Gas sampling and conditioning technology 6-1.2.1ME
12 STARTING
Specific safety instructions for media being handled must be observed.
Before pumping a medium, the compatibility of materials of pump head, diaphragm and valves with
the medium must be checked (for pump materials: see table 1).
The following steps should be carried out before initial start-up:

The pump must not start against pressure or vacuum. When it is switched on the pressure in the
suction and pressure lines must be atmospheric. This must be so even when the pump restarts af-
ter the power has been cut off for a short period.

The maximum permissible operating pressure (see technical date) must not be exceeded, even
when the flow is restricted.

To prevent the maximum permissible operating pressure being exceeded, restriction or control of
the air or gas flow should only be carried out in the suction line.

If restriction or control of the air or gas flow is made on the pressure side ensure that the maximum
permissible operating pressure is not exceeded.

When the pump is at a standstill the inlet and exhaust must be at normal atmospheric pressure.

Diaphragm and valve plates are the only parts subject to wear. Wear is usually indicated by a
drastic reduction in the pneumatic performance. When replacing parts proceed as described in
section 10.

Ambient conditions: see technical data.
13 CLOSING DOWN
N O T E !
The area in which the pump is situated when not in use must be
kept free of frost at all times!
If the pump is putting out of action for a short time no particular measures need to be taken.
14 MAINTENANCE
Before the maintenance work is carried out, it is necessary that the specific safety procedures pertain-
ing to the system and operational process be observed!
W A R N I N G !
It is necessary to take the pump off the mains before any assem-
bly, maintenance or repair work is carried out!
Diaphragm and valve plates are the only wearing parts of the pump. They are simple to change. A
wear is indicated by a drop of the pump capacity.