M&C TechGroup MP12 Operator's manual - Manual (Page 12)

12
Gas sampling and gas conditioning technology 6-1.1.10-ME
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 technical data).
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 dras-
tic reduction in the pneumatic performance. When replacing parts, proceed as described in section
9.

Ambient conditions: see technical data section 3.
13 CLOSING DOWN
If the pump is putting out of action for a short time, no particular measures need to be taken.
If the pump is out of action for a longer time, please purge it with Nitrogen.
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!
W A R N I N G !
Aggressive medium is possible.
Wear protective glasses and proper protective clothing during dis-
assembly, repair or cleaning!