18 guard column – Metrohm 881 Compact IC pro – Anion User Manual
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3.18 Guard column
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881 Compact IC pro – Anion
The mains cable is three-core and provided with a plug with grounding. If
another plug has to be mounted, the yellow/green conductor (IEC stand-
ard) must be connected to the protective ground (protection class I).
1 Connect the mains cable
￭
Plug the mains cable into the mains connection socket .
￭
Connect the mains cable to the mains supply.
2 Switch on the instrument
Switch on the instrument using the mains switch .
After switching on, the LED on the front of the instrument flashes
while a system test is carried out and the connection to the software
is established. Once the system test is complete and the connection
to the software has been established, the LED lights up continuously.
3.18
Guard column
The use of guard columns serves for protecting the separation columns
and increasing their service life considerably. The guard columns available
from Metrohm represent either actual guard columns or are so-called
guard column cartridges which are used together with a cartridge holder.
The installation of a guard column cartridge in the associated holder is
described in the leaflet of the guard columns.
Note
Information regarding which guard column is suitable for your separa-
tion column can be found in the Metrohm IC Column Program
(which is available from your Metrohm agent), the leaflet provided
along with your separation column, the product information on the
(product area Ion
Chromatography), or obtained directly from your agent.
Caution
New guard columns are filled with solution and are sealed on both
sides with stoppers or caps, respectively. Before using the guard col-
umn, you need to ensure that this solution is miscible with the eluents
used (observe manufacturer's data).