Standard Operations - Hach TitraLab AT Série Manuel D'utilisation De Base

Prepare the instrument for measurement
1. From the main menu, select
2. Select All elements to purge all the attached devices, or select one device to purge. Push
Select. Air is removed from the device and filled with liquid from the bottle.
3. Push OK when the operation has completed.
4. Make sure that there are no air bubbles in the device. Do step
bubbles.
5. Select the next device to purge if individual devices are being selected.
6. Push Exit when all the tubes are filled with reagent and the device has no air bubbles.
Note: If a few small air bubbles can be seen on the inner wall and/or piston of the syringe, they can be left
without effecting system performance.

Standard operations

Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.
Personal injury hazard. Never use the instrument without the syringe protection cover in place.
Chemical exposure hazard. Never remove the stir bar from the beaker before the end of a titration.
Get a sample measurement
Use this option to get sample measurements with one of the installed applications.
1. From the main menu, select the measurement application, then push Start. Application
information shows on the display.
2. Read the related "Application Note" from the USB applications key for more instructions.
3. If necessary, select an icon for more information or to change some data.
4. Fill a beaker with the recommended sample amount that shows on the display. If necessary, add
sufficient deionized water to make sure the sensor is correctly installed in the sample.
5. Carefully put a magnetic stir bar into the beaker. Make sure there is no liquid spill.
6. Attach the beaker to the sensor holder.
7. Make sure that the icon at the bottom of the display
show on the display adjacent to this icon. Refer to
that the tubes and sensor are correctly aligned.
8. Push Start to start the measurement. Measurement data shows on the display.
9. If the default stirring speed needs to be adjusted, push the up and down arrow keys to increase or
decrease the speed.
10. If the options are available during the measurement procedure, push Skip to ignore the current
step or push Stop to abort the measurement.
Purge, then push Start. All attached devices are listed.
C A U T I O N
C A U T I O N
C A U T I O N
C A U T I O N
Connect the sensor
2 again if there are any air
is highlighted. Do the instructions that
on page 13 to make sure
English 17