Hach-Lange BUEHLER 3010 4010 4210 4410 Manual - Manual (Page 35)

Operation
Page 35 Manual BÜHLER BU4010ff
1.
Distributor
2.
Rinsing water connection
3.
Container
4.
Locking device for telescopic drawer
5.
Telescopic drawer
6.
Discharge trough
1.
Description
The motor-driven distributor unit consists of a distributor tie-bar, a drive unit with motor,
a light barrier and encoder as well as a distributor head with outlet tube.
There are 2 x 10 L PE containers (or 4 x 5 L PE containers) and each container is equipped with
a discharge valve at the bottom. In addition there is a rinsing valve for each bottle at the bottom
of the inner compartment.
2.
Operating elements
The red screw cap of the distributor head can be unscrewed for cleaning.
Attention:
Never turn the distributor by hand (geared motor)!
3.
Method of operation
- The device is typically programmed in such a way that each container is filled for a period of 24
hours. Thus, a sample of the last 24 hours is available at any time.
- At each bottle change, the distributor passes a light barrier at position 1 to synchronize.
- After having passed the light barrier, the encoder pulses of the motor are counted to position the
outlet tube on bottle 2.
- After each program-related bottle change, the new bottle is automatically emptied and rinsed.
- To do this, the distributor first moves on the respective bottle.
- Thereafter the discharge valve at the bottom of the container is opened.
- After expiration of the emptying time (adjustable), the respective rinsing valve is opened (rinsing
time is adjustable, too) and the container is rinsed.
- After rinsing, the discharge valve closes and the device is ready for sampling again.
Sample distribution at Bühler 4410 – variants: 2 / 4 bottles