M&C TechGroup SR25.1_Ex Operator's manual User Manual
Page 13
3-7.1-ME
Gas sampling and gas conditioning technology
13
D A N G E R !
The respective cable which is left (230 V white and 115 V red) must be
connected at a separate clamp.
The main circuit of the pump type SR25.1, SR25.1/EX and SR25.2-G must be equipped with a
fuse (0,25A recommended) corresponding to the nominal current (over current protection EN
60335-1);
An appliance to separate the motor from the power is to be provided in the electrical installation
(EN 60335-1);
The pump must be installed so that contact with alive parts (connections, possibly windings) is
impossible.
12
START-UP
Specific safety instructions for media being handled must be observed. Before pumping a medium, the
compatibility of the flexible tube material with the medium must be checked. 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 after the power has been cut off for a short period.
The maximum permissible operating pressure (see technical data) must not be exceeded,
even when the flow is restricted.
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 be shure that the pressure in the lines is atmospheric. No
other measures need to be taken.