Hach-Lange BUEHLER 3010 4010 4210 4410 Manual - Manual (Page 18)

Operation
Page 18 Manual BÜHLER BU4010ff
Installing the apparatus
- The workings described in this chapter of the manual must only be carried out by qualified
personnel.
- We recommend to install the apparatus as near as possible to the point of extraction. If installed
outside, the device should be fixed on a solid flat base (e.g. plinth). The fixing bars do already
have the necessary fixing holes.
- If the device is equipped with castors (mobile version), please make sure that the two lock-type
castors are locked during operation.
- For better deaeration / ventilation install the apparatus with a distance of approx. 10 cm to the wall.
- The hose has to be laid with a continuous fall from the apparatus to the point of extraction, without
fail. Lower lying points can lead to deposits in the hose which may freeze up in winter.
- To fix the suction hose, we recommend to use the extraction unit available as accessory.
- Fix the hose in such a way that the suction aperture lies in the direction of flow, so that coarse
matter and fibres cannot be forced into the suction aperture.
Remark:
To open the top cover both front screws (left + right)
have to be removed. Then the top cover can be lifted
up to the point where the retention bars snap-in. To
close the cover again, the two retention bars have to
be lifted slightly.
After having closed the cover, the
two screws (left + right) have to be screwed in again.
Mains connection The device is equipped with a power supply lead.
The connecting data can be found in chapter “Technical Data”.
Connect/disconnect The device is connected/disconnected by means of the mains plug (except
devices with main switch).
Hose routing
The apertures for the suction hose are on the left and on the right at the front.
Signal inputs
The signal inputs (e.g. for flow meter) are located on the „fold-out“ plate and
can be connected according to the plan of terminal connections shown there.
Messages
The relays required for messages (up to 4) can be fixed on the top hat rail. For
details please see the circuit diagram
Remark :
The apparatus must be cleaned regularly in accordance with the degree of contamination present. In
view of the quality of samples, we recommend to clean thoroughly especially the wetted parts like
dosing unit, electrodes, distributor, bottles and inlet hose. Failure to do so could result in damage or
destruction to the equipment, device that
are not covered by warranty.