6
4.2 Storage
The pumping system should be stored in a clean and dry area.
4.2.1 MP 1/Redi-Flo2 pump
Storage temperature: –20 °C to +50 °C.
If the pump has to be stored after use, it must be cleaned thoroughly before storing. See section 9. Maintenance
and service.
4.2.2 Converter
The converter should be stored in a clean and dry area. Storage temperature: –10 °C to 45 °C.
5.
Installation
5.1
Assembly
The pump can be installed either horizontally or vertically. The pump
discharge port should never fall below the horizontal plane. See fig. 2.
During operation, the pump must always be completely submerged in
the liquid.
The pump performance is controlled by changing the frequency. The
installation of a valve in the discharge pipe is unnecessary and with
regard to the water sample directly inappropriate.
If a valve has been installed anyway, make sure that the pump is only
operated against a closed valve for a very short period.
Otherwise the heat generated will cause the pump to stop.
If a non-return valve is installed in the discharge pipe, it must be
installed at least 0.5 metres above the pump. This is necessary
to ensure that the air in the pump is compressed so much that the pump contains water when it is being
submerged.
5.2
Borehole diameter
The inside diameter of the sampling borehole must be at least 50 mm. At
the first sampling, it is recommended to check the borehole for clearance
by means of a calibration punch. If the borehole diameter is larger than
80 mm, the pump can be fitted in a cololing jacket/flow sleeve to prevent
unintended pump cut-outs. See fig. 3.
5.3
Water level
The dynamic water level (depth to the water level in the borehole during
operation) must not exceed 80 metres.
Fig. 2 Positional requirements
Fig. 3 MP 1/Redi-Flo2 in cooling jacket
(flow sleeve)
