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Product Information
The Thermo Scientific TII is a tap-fed water purification system designed to be simple to use and to
provide reagent-grade water that exceeds ASTM Type II, and CLSI®-CLRW standards. It uses a thin
film composite reverse osmosis membrane with pretreatment to produce RO water that is then
polished using a two-stage deionization process combined with UV oxidation and a 0.2 micron final
filter.
The % of the rejection between incoming and reverse osmosis product water is monitored and an
indication is provided to the user if the RO water quality is unacceptable. Pressure sensors located
inside the unit monitor incoming feed water and RO pressure. The DI water purity is continuously
measured by a resistivity cell and displayed on a multifunctional display.
RO operation is automatic and works independently of the DI system to fill the external reservoir as
determined by sensors in the reservoir.
Read the instructions carefully to ensure that you receive maximum benefit from the Thermo Scientific
TII. Also, please fill out and return the enclosed warranty registration card, as it will help us assure you
of proper warranty coverage.
TII Water Specifications
Table 2-1 Feed Water Requirements
Types
Turbidity
Pressure Range
Temperature Range
Minimum Inlet Flow Requirements
pH
TDS
Silt Density Index
Free Chlorine
Langlier Saturation Index
Thermo Scientific
Note The Thermo Scientific TII is not shipped with pretreatment and DI polishing
cartridges or a final filter. These must be ordered separately. The start-up kit containing
these components can be ordered using part number D502138 for all units.
1
Tap
(Potable)
1.0 N.T.U. maximum
2-6.9 bar (30-100psig)
4-40°C (39-104°F)
100 lph
3-10
600 (max. ppm as CaCO3)
< 5%
< 3 ppm
< 1
2
TII Water System
2-1
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