3
1.
Information on this manual
If the text follows a mark (as shown on the left), this means that an important instruction follows.
If the text follows a mark (as shown on the left), this means that an important warning follows
relating to danger to the user or damage to the apparatus. The user is always responsible for its
own personal protection.
Italic indicated text indicates that the text concerned appears in writing on the display or the
apparatus (or must be typed).
2.
General description
Prior to installation, read these installation and operating instructions (also read the separate
manual on the frequency converter). Installation and operation must comply with local regulations
and accepted codes of good practice.
The Grundfos MP 1/Redi-Flo2 submersible pump is specially designed for the purging and sampling of
contaminated groundwater in boreholes with an internal diameter of at least 50 mm. The pump is powered
via an adjustable converter in the 25 to 400 Hz frequency range. At 400 Hz, the pump provides a flow rate of
1 m
3
/h at 74 metres head.
The pump must always be powered via the converter. See fig. 1.
Pump and converter (motor) form a complete unit that can easily be dismantled for cleaning and servicing.
The Teflon power cable is available in different lengths.
2.1 Applications
The Grundfos MP 1/Redi-Flo2 pump is designed for the purging and sampling of contaminated water. The
maximum sand content of the water must not exceed 50 g/m
3
. A larger sand content will reduce the life of the
service parts and increase the risk of blocking of the pump. Water temperature: +1 °C to +30 °C.
All pump components are made from materials not giving off foreign matter to the pumped liquid except
PFOS/PFOA. If you are going to sample for these parameters, please ask your distributor how to act. For other
contaminants the sample taken is not influenced nor altered by the pump.
To avoid cleaning the pump and to eliminate the risk of cross-contamination, permanent installation of the
pump is recommended.
Text
Fig. 1 Submersible pump Grundfos MP 1/Redi-Flo2 and
frequency
converter