Operation – Hach-Lange SIP 10 User Manual
Page 83
English 83
Operation
SIP 10 setup
When a SIP 10 module is connected to the photometer, an additional
SIPPER button is shown in the toolbar.
1.
Press SIPPER on the toolbar.
A Sipper options menu opens.
2.
Press ON to modify the settings for a Sipper cycle.
•
SIP TIME: The sip time determines the sample volume that is
pumped through the cell.
In order to make sure that all of the liquid is replaced in the
Dual Path Length Pour-Thru Cell, 1 inch/1 cm, the minimum
time is 25 seconds.
Default setting: 25 seconds The flow rate is 1 mL/sec.
Note: If you use other Pour-Thru Cells, the SIP time must be
determined individually. One method to determine this is to use two
solutions with different concentrations and measure the absorbance
continuously.
•
SETTLE TIME: The settle time defines the duration of the
standstill phase between the pump process and measurement
process. During this time, air bubbles that have formed during
the pump process can escape and sample turbulence can
cease.
Default setting: 5 seconds
•
PURGE TIME: The purge time determines the volume of rinse
agent that is pumped through the cell after each measurement.
This additional purging can be deactivated.
Default setting: off
•
PURGE START: The start of the purge time can be triggered
automatically after the measurement process, or manually. To
start the cycle manually, press PURGE to trigger the purge
cycle.
Default setting: auto
Note: The PURGE START button is only active when the purge
time setting is ON.
3.
Configure the required settings and press OK to confirm.
Execution of a stored program
1.
Access the required test via STORED PROGRAMS.
2.
Place the feed tube in the zero solution and press ZERO.
The zero solution is pumped in according to the selected SIP time.
Once the settle time has passed, the zero measurement is taken.
Note: The remaining time is shown on the display. Press CANCEL
to stop the operation.
Note: If the PURGE START: AUTO setting has been activated in
the Sipper options menu, the rinse agent is pumped in automatically
after measurement.