Brief Operating Instructions - Thermo Scientific Barnstead Smart2Pure 12 UV/UF 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. Ultrapure water can be withdrawn from the dispensing valve at the front of the system.
Menu:
With one press on the menu-key you reach the first submenu, where you can select from the
following 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 alter-
nately 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 alternately at 2
second intervals (dual measuring mode)
With two presses on the menu-key you reach the second menu, where you can set the limiting
value for the conductivity of the ultrapure water (only in µS/cm)
With three presses on the menu-key you reach the third menu, where you can set the limiting
value for the temperature.

The exceeding of a limiting value is signalled by a buzzer. The alarm signal can be
switched off by a press on the quit/up button.
Leave your Smart2Pure ultrapure 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.
Should your Smart2Pure ultrapure water system be out of operation for longer
than 72 hours, then the ultrapure water inside the system will take up carbon diox-
ide and so cannot be immediately produce ultrapure water of 18.2 MΩxcm quality.
To prevent this, the filter cartridge should be prematurely replaced, whereby the
emptying of the storage tank is necessary so that fresh ultrapure water flows
through the system.
Thermo Scientific Barnstead Smart2Pure
Ultrapure water system
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