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UV lamp
A press on the "UV" button results in showing the letters "UV". However the UV-lamp is only
switched on, when the system is in "Nonstop" operation. The UV-lamp is switched off at the end of
"Nonstop" operation. If the nonstop operation is ended manually (by pressing the nonstop button),
the UV-lamp is switched off after glowing for 0.5 hours. The operating time of the UV-lamp is
recorded and the "UV time" error message is displayed when the limiting value set for this time is
exceeded. TOC measurement is also carried out during the time that the UV-lamp is glowing only.
The display shows:
Picture shows Nonstop mode
with error in the fourth line.
Normally 3 lines are
displayed
OFF mode
The unit is switched off by pressing the "ON/OFF" button a second time. The display, along with all
messages, then goes off.
User menu
All measured values, operating times and limiting values which are relevant for the user can be set
and read in this menu. Press the "Menu" button to scroll to the next menu item. Each further press
on the "Menu" button moves you further from one menu prompt to the next. Settings can be changed
with the arrow keys. To change numbers use the "Arrow" buttons to go from 0-9, and the "UV"
button to move to next digit. When you confirm a value by pressing on the "Enter" button, you are
taken to the next menu prompt. Settings can only be made when system control has been previously
unlocked by entering a valid code number. (see "Entering a Code number" on page 71).
Feedwater limiting value
The feed water resistivity can be displayed by pressing the "Menu" button once. The feed water limit
value setting will display an error message "Feed.limit" in the fourth line of the display if the purity
has dropped below acceptable limits. Note: the setting range is in conductivity
Measuring range, feedwater: 10 – 0.01 M·cm
Setting range, limiting value:0.1- 50.0 µS/cm
Basic setting: 0.2 µS/cm (5.0 M·cm)
Note If an IC system is connected to the Dionex IC
Pure system the UV lamp is operated permanently.
System control |
Chapter 12
.
Dionex IC Pure system | 67
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