Protegra OF 3000 - Reverse Osmosis, 3000 l/h

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The Protegra OF 3000 reverse osmosis system

The Protegra OF 3000 cost-effectively produces larger quantities of deionized water. Equipped with high-quality components and an intelligent control system, the system must be connected to a tank with level monitoring to control production. The system provides high purity water with the advantage of continuous operation. Production runs automatically in two operating modes.

Product features and benefits:
- With energetically economical and high performance reverse osmosis membranes, a high output of pure water is achieved with a high salt retention rate at the same time. This minimizes the energy requirements and reduces water loss.
- Before each standby an automatic system flush is performed to reduce the ion concentration at the membranes which increases the life and reliability of the system.
- A microprocessor controller monitors the pure water quality and the status of the system. Exceeded values, such as expired maintenance intervals and water quality are displayed as alarm messages.
- The limit values for conductivity and flow rate of the pure water can be set individually.
- The system is structured clearly and can be operated from all sides for service purposes.
- The system is low-maintenance.

Pure water production: Reverse Osmosis
- Feed water solenoid valve
- Pressure regulator
- Conductivity sensor for feed water (cell constant c=1.0)
- filter housing includes four  20" filter cartridges, 5 µm
- Pressure switch for feed water
- Stainless steel pump (1.4401/1.4301)
- Pressure sensor for operating pressure
- 3 Reverse osmosis modules 8" from polyamide/polysulfone with GFK cylinders and end caps
- Regulator for concentrate flow to drain and return flow
- Three flow sensors for pure water and concentrate
- Conductivity sensor for permeate (cell constant c=0.2)
- Quality dependent permeate distribution valve

Microprocessor Control:
- Located on the front of the system
- System status
- Conductivity of feed water and permeate
- Volumetric flow of pure water and concentrate
- Reminder service and filter change
- Alarm indicator for: low flow feed water, out of range conductivity, flow rates and tank volume
- Tank level indication in Percent, three options for unit to switch ON or OFF. Pump protection against running dry for pure water
- Connection for common alarm to BMS with adjustable time interval (optional single alarm possible)
- Time schedule for concentrate to drain and module rinsing
- Multilingual (German, English)
- RS232 interface, with optional software for further data processing

Delivered with:
- Operating manual
- Electrical diagram
- CE certificate

Connection possibilities:
- Potential free contact for common alarm
- Booster pump start/stop function with dry-run protection and interval operation
- Feed water hardness monitor. In the event of hardness breaking through the unit switches off to prevent blockage of the RO membranes

Optional:
- Reminder for service intervals (potential free contact)
- UV-disinfection kit with interval operation
- Timer switch for use in connection with pressure booster pump

Feed water specifications:
Flow rate: 4000 - 6000 l/h
Pressure: 2 - 6 bar
Conductivity: < 2000 µS/cm
TDS: 1000 mg/l
CO2: < 20 mg/l
Total Iron: < 0.1 mg/l
Free Chlorine: < 0.1 mg/l
Temperature: 5 - 30°C
Softened or hardness stabilized

Performance specifications:
Delivery flow rate at 15°C: 3000 l/h
Salt retention: 98 %
Recovery rate up to: 75 %
TOC: < 30 ppb
Bacteria reduction: > 99 %

Technical data:
Operating pressure: max. 14 bar
Mains input: 3 x 400 V, 50 Hz
Power consumption: 5.5 kW/h
Ambient temperature: 5 - 35°C
Fuse: 16 A

Feed water connection:
R 1-1/2" male BSP
Permeate water connection:
R 1-1/2" male BSP
RO permeate, drain connection:
R 1-1/2" male BSP
Pure water back-pressure: 1 bar

Dimensions and Weight:
Height: 1900 mm
Width: 3900 mm
Depth: 960 mm
Weight: 345 kg

Please note:
The unit accepts a feed water salt content of 1000 mg/l, equivalent a conductivity of 2000 µS/cm at 15°C.
The feed water specifications are guidelines.