Brief Operating Instructions - Thermo Scientific Barnstead Smart2Pure Operating Instructions Manual

11. Brief operating instructions

The purity of the water produced is shown at the front of the system, either in µS/cm or in
MΩxcm. Ultra pure water can be withdrawn from the dispensing valve at the front of the system.
Menu:
One press on the menu-key brings you to the first submenu, where you can select from the fol-
lowing choice:
1. Display of the water quality only in µS/cm
2. Alternatively, the display can show the water quality in µS/cm and the temperature one
after the other at 2 second intervals (dual measuring mode)
3. Display of the water quality in MΩxcm (mono measuring mode)
4. Alternatively, the display can show the water quality and the temperature one after the
other at 2 second intervals (dual measuring mode)
A second press on the menu-key brings you to the second menu, where you can set the limiting
value for the conductivity of the ultra pure water (only in µS/cm)
A third press on the menu-key brings you to the third menu, where you can set the limiting value
for the temperature.

When a limiting value is exceeded, this is signalled by a buzzer. The alarm signal can be
switched off by a press on the quit/up button.
Leave your Smart2Pure ultra pure water system in operation even at weekends
and during holiday times. Only then can the automatic recirculation effectively pro-
tect against increasing conductivity values in the storage tank.
When the Smart2Pure ultra pure water system is to be out of operation for longer
than 72 hours, the ultra pure water inside the system will take up carbon dioxide
and so will not be able to immediately produce ultra pure water of 18.2 MΩxcm
quality. To prevent this, the filter cartridge should be prematurely replaced,
whereby the storage tank must be emptied so that fresh ultra pure water flows
through the system.
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Thermo Scientific Barnstead Smart2Pure
Ultrapure water system