Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers
9 Operate
OI/AXM630–EN Rev. I
53
9 Operate
9.1 Stop Monitor
Select to stop the analyzer. The temperature of the
measurement cell is maintained at the set level ensuring no
warm-up delay when the analyzer is restarted.
9.2 Start Monitor Measurement
Select to start the analyzer. If the analyzer was switched off at
the mains, or a fault had occurred, measurement does not start
until the measurement cell reaches the operating temperature
set during configuration – see Section 6.2.1, page 34. The
message 'Temperature Stabilising' appears at the bottom of the
screen until the cell is up to temperature.
If the analyzer has not been used for an extended period of time,
allow it to operate for a few hours and then recalibrate.
The analyzer runs automatically until it is switched off.
9.3 Calibrate
A manual calibration can be performed at any time. It is not
necessary to stop the analyzer.
Highlight the
button and press
to initiate calibration.
When calibration is complete, the measurement cycle begins
automatically.
9.4 Prime Lines and Calibrate
When the reagents are changed, or the analyzer is either
operated for the first time or operated following an extended
period of shut down, prime the reagent and sample lines – see
Section 4.1, page 22. The 'Prime' function draws in each
reagent, sample and standard in turn, filling the lines and then
pumping to waste. An automatic calibration is then started. After
calibration the measurement sequence begins automatically.
If the analyzer is switched off at the mains without stopping
operation via the menu, or if a power supply failure occurs, the
analyzer starts the Prime Lines and Calibrate routine
automatically when power is restored.
9.5 Flush Monitor
This facility pumps sample through the flow cell continuously but
does not store or display measurement values.
The routine can be used
without
a prior calibration and is useful
when the measurement parameter is changed, for example,
from ammonia to fluoride.
When flushing is selected, the operation continues until stopped
by the user or a different operation such as 'Calibration' is
selected.
Note.
The 'Operate' menu can be accessed only from the 'Indicator View’ screen.
Fig. 9.1 Operate Menu
see Section 9.1, page 53
see Section 9.2, page 53
see Section 9.3, page 53
see Section 9.4, page 53
see Section 9.5, page 53
