- Home
- Companies
- SnowPure Water Technologies
- Products
- SnowPure ediPureSource - ...
SnowPure ediPureSource - Electrodeionization (EDI) DC Power Supply
SnowPure has designed a modular DC switching power supply for its Electropure brand EDI modules. These are economic high-quality electronic switch-mode DC supplies. Designed for EDI, we included open-closed contacts for flow/pressure switches to protect the EDI and outputs for panel displays. SnowPure worked with several electronics manufactures to simplify their DC supplies. Only what is needed is included. Our ediPureSource is the perfect power supply for our electrodeionization modules.
ediPureSource is the Perfect Simple Solution
SnowPure sells economic high-quality electronic switchmode DC supplies. Designed for EDI, we include open-closed contact interlocks for flow switches and pressure switches to protect your EDI. And they include outputs for panel displays and PLCs. SnowPure works with several electronics manufactures to simplify their DC supplies. Only what is needed for EDI is included. Perfect for EDI. In stock.
Voltage Control vs Current Control:
Voltage control is superior to current control for EDI. Voltage is the driving force to remove charged ions from your water. Current is the result, and will be proportional to how many ions you remove. If you set the DC voltage, then the EDI system will automatically react to changes in feedwater, in RO performance, and in temperature. If you use current control, then you must constantly “recalculate” what the optimum current is, from season to season, and as the RO permeate changes. SnowPure highly recommends using Voltage Control.
A detailed explanation of “Voltage Control” can be found here.
Importance of the Interlock:
EDI modules will melt if you supply electrical power without water flow. This is one of two common EDI field failures. SnowPure recommends the use of flowswitches and pressure switches, even PLC logic to protect the EDI. The DC power supply interlock is the simplest way to protect your EDI system. With a flowswitch wired to our open-close contact interlock, if the flow stops the flowswitch will open, and the DC voltage will go to zero. multiple flowswitches and pressure switches can be wired in series to this interlock. Contact SnowPure for typical wiring diagrams and to purchase flowswitches.
DC Technologies, Switchmode vs Rectifier:
In olden days, AC power could be rectified with diodes, and AC ripple reduced with capacitors. Today, electronic switchmode technology converts AC to DC to make a stable, regulated, low-ripple DC source. Read more here.
- Compact - 5 x 5 x 13 inches
- Economic - only has the needed features
- Suitable for NEMA Enclosures
- Remote Panel-Mount Control (RS-232)
- 200 - 380 VDC 0-8 Adc
- Designed for:
- XL-400 Series (200 VDC)
- XL-500 Series (300 VDC)
- EXL-600 Series (300 VDC)
- Enabled by Remote Interlock (flowswitch for auto startup and shutdown)
- CE Mark


- No concentrate recirculation or brine injection
- Thin-Cell efficient technology
- Thin-Concentrate non-scaling technology
- Unique non-scaling electrode system
- Patented Excellion membranes
- Electropure"" EDI technology was born in 1977 before lonpure
- SnowPure is privately held
- SnowPure is your partner, not a competitor
- High quality Electropurem EDI training and OEM support
- Continuous Process-no upsets
- Operating cost is minimized
- No hazardous waste, no associated costs and risks
- No regeneration acid or caustic
- Flexible - easy to expand a modular EDI system
- Reliable - no recirculation system components to fail
- SnowPure believes strongly in training—this helps ensure field success with Electropure" EDI systems.
- SnowPure assists new OEM customers through their system design phase.
- Our customers also have access to our Best Practices P&ID`s to aid in their EDI system optimization.
- Combined with ongoing Technical Service, we help ensure success.
