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Introduction
Barnstead MEGA-PURE® Deionization Systems are
designed to remove dissolved inorganic and/or organic
materials from your water supply depending upon your
deionizer and cartridge selection.
Resistivity is continuously monitored. A green light will
indicate that the resistivity of the output water is greater
than 50K ohm-cm. A red light comes on when the deion-
ization cartridge requires changing.
The Flow Control Valve in this system is a precision nee-
dle valve for precise output flow rate control.
The improved drain system will drain cartridges fast and
efficiently for no-spill cartridge replacement.
The optional Solenoid Valve Accessory (Barnstead Part
No. 440375) will provide automatic shut-off of your water
supply when the resistivity of the output water falls below
50K ohm-cm.
Another option, the Still Adapter Kit (Barnstead Part No.
440376), connects the MEGA-PURE® Deionization
System to any Barnstead MEGA-PURE® Automatic Water
Still. This kit allows the Deionization System to function
automatically with the Water Still.
System Characteristics
The Barnstead MEGA-PURE® Model D1 Deionization
System is a single cartridge deionizer designed to provide
economic removal of inorganic contaminants from most
water supplies. This system has been preset to a resistivi-
ty of 50K ohm-cm. A green light will be lit as long as the
output water has a resistivity greater than 50K. The green
light will go out and a red light will come on if resistivity
falls below 50K. The D1 was primarily designed to utilize
the Barnstead High Capacity Cartridge to provide Reagent
Grade water for general laboratory use or as a water sup-
ply pretreatment to feed any Barnstead MEGA-PURE®
Water Still.
The Barnstead MEGA-PURE® Model D2 Deionization
System is a dual cartridge unit that provides all the fea-
tures of the Model D1 with the addition of organic
removal. The Model D2 is designed to use the Barnstead
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