multi N/C pharma UV
Operation
55
For measurements without autosampler:
Enable the checkbox R
EVERSE RINSE
A
NALYZER
. Place the sample aspiration
cannula into the waste container before starting the backwash.
For measurements with the autosampler AS vario, EPA sampler:
Enable the checkbox R
EVERSE RINSE
A
NALYZER
. The contents of the sample intake
hose is automatically washed back into the purge cup.
For measurements with the autosampler AS 10, AS 21:
Measure an ultrapure water sample at the end of the sequence.
(The autosamplers AS 10 and AS 21 do not have a purge cup required for the
backwash process.)
3.
Enable the option
STAND
-
BY
A
NALYZER
and confirm using [OK].
The analyzer remains in standby mode.
The sample intake hose is purged with ultrapure water. The rest of the system remains
filled. The UV lamp is switched off and the gas flow is reduced.
6.3.2
Switching off before longer periods of rest
The analyzer must be completely switched off before extended standstill periods such
as weekends or holidays. The analyzer must be purged before it is switched off.
1.
Click the [E
XIT
] button on the multiWin user interface.
The
PROGRAM
E
ND
window opens.
2.
Purging the analyzer:
For measurements without autosampler:
Enable the checkbox R
EVERSE RINSE
A
NALYZER
. Place the sample aspiration
cannula into the waste container before starting the backwash.
For measurements with the autosampler AS vario, EPA sampler:
Enable the checkbox R
EVERSE RINSE
A
NALYZER
. The contents of the sample intake
hose is automatically washed back into the purge cup.
For measurements with the autosampler AS 10, AS 21:
Measure an ultrapure water sample at the end of the sequence.
(The autosamplers AS 10 and AS 21 do not have a purge cup required for the
backwash process.)
3.
Enable the S
WITCH OFF ANALYZER
option and confirm using [OK].
The sample intake hose is purged with ultrapure water. The UV reactor and the
TIC condensate container are drained. The UV light and the gas flow are turned off.
When activating the option R
EVERSE RINSE
A
NALYZER
the syringe pump is flushed as
well. These processes take about 2-3 minutes.
4.
Switch off the analyzer using the power switch.
The analyzer is switched off completely.