Hach TenSette plus Basis-Benutzerhandbuch Seite 9

Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local,
regional and national regulations.
7.1 Pipette
1. Choose the Pipette function.
2. Select the pipetting volume simply by pressing the scroll key up or down.
3. Accept the volume with OK. Optionally, select Speed (1 slow to 9 fast) and the speed-in starts to
blink.
4. Select the speed-in with the scroll key and accept with OK.
5. Select the speed-out with the scroll key and accept with OK.
6. Fill a clean reagent reservoir with the liquid to be dispensed.
7. Dip the tip under the surface of the liquid in the reservoir and press the trigger. The liquid is drawn
into the tip.
8. Wait until the liquid is not moving in the tip and withdraw the tip from the liquid touching it against
the edge of the reservoir to remove excess liquid.
9. To deliver the liquid, press the trigger. The blow-out is also included to empty the tip.
10. Change the tip and continue pipetting.
7.2 Program
Programs are stored settings that can be edited, stored and retrieved. Under the Program function
the following volumes are default: 0.2, 0.4, 0.5, 1.0, 1.3, 2.0, 2.3, 2.5 and 5.0 mL. When working with
the mode Program, the scroll key selects the program and it is a very fast way to switch between
different settings. Additional functions such as mixing, counter, etc. are also available in the mode
Program. To change the default volumes, choose Edit.
It is also possible to replace default volumes by additional functions. Refer to the expanded user
manual on the manufacturer's website.
Section 8 Calibration
All Hach TenSette plus are factory calibrated and adjusted to give the volumes as specified with
distilled or deionized water. Normally, the pipettes do not need adjustment, but they are constructed
to permit recalibration and adjustment for liquids of different temperature and viscosity.
Refer to the expanded user manual on the manufacturer's website for recalibration and calibration
check instructions.
Section 9 Maintenance
Multiple hazards. Only qualified personnel must conduct the tasks described in this
section of the document.
9.1 Cleaning
The pipette should be checked at the beginning of each day for dust and dirt on the outside surfaces
of the pipette. Particular attention should be paid to the tip cone. No other solvents except 70%
ethanol should be used to clean the pipette.
C A U T I O N
C A U T I O N
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