All our lab ro di water system, lab deioniser, ro di deionizer are thoroughly inspected at our production and distribution centers before they are delivered to our customers and quality can be guaranteed. In order to meet the needs of customers, we advocate and implement standardized, fast, and value-added service concepts and awareness. Our company adheres to the business policy of 'honesty, cooperation, high quality and high efficiency' and firmly establishes the enterprise tenet of 'customer first'. The company requires its employees to pay close attention to customer needs, tap into customer excitement, and continuously create touching services for customers.
With LCD controlling system, 3 way water quality sensors, timing and quality dispensing and 1 pump, Master-D series ultrapure water system is sub-superior choice of ultrapure water for high grade experiments.
With pure water or distilled water inlet, its output is up to 2 liters/minute. It can produce deionized water and ultrapure water. The deionized water´s resistivity is above 5MΩ.cm, and the ultrapure water´s resistivity absolutely reaches to 18.2MΩ.cm. It completely meets the highest grade I standard of ASTM, CAP, CLSI, EP and USP.

Models:
Master-D
Master-DUF
Master-DUV
Master-DUVF
Features and Advantages
Micro-computer control system with LCD display LCD (resolution: 240×128, dimension: 106×57mm), intuitively display the system running state and various real-time parameters. |
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Comprehensive monitoring system 3 way online water quality sensors, detect the quality of feed water, RO water, deionized water, or ultrapure water respectively. And warn once water quality´s standard exceeding. Water dispensing function- timing and quality (time range: 1-99min, water quality range: 0.1-18.2MΩ.cm). water. |
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Easy-to-replacing cartridge Independent pretreatment design, and integrated subsequent purification unit design, with fast inserted adapters, easy to replace. |
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Whole plastic shell with high-strength Excellent ergonomic design, avoid rusting and keep clean, to meet GLP standard. |
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Cartridges replacing alarm function, based on time and water quality, show cartridges´ used and residual life.
Multiple alarm function: no feed water, full water, water quality´s standard exceeding, and cartridge life ending.
Auto running data storing function through RS232/USB communication port to computer for 1 year at least (optional).
System sanitizing procedure, achieve the disinfection of ultrapure water´s tube and valve.
System circulation function, achieve ultrapure water´s circulation to keep top quality of ultrapure water.
Level II password, protect all the parameters setting, and prohibit any unauthorized setting change.
External water tanks is optional to meet different need and assure ample water-supply.
3 doors and easy-to-replacing cartridge design, convenient to maintain system and replace cartridges.
Tube and adapter with NSF authorization and top quality, reduce TOC level and assure ultrapure water´s quality.
4 in 1 ultrapure cartridge (can be divided to 4 independent cartridge) with DOW´s top polishing resin, ensure ultrapure water´s quality up to 18.2 MΩ.cm, with the lowest TOC level.
Double wavelength (185&254nm) ultraviolet lamp module, restrain bacteria´s increase and reduce TOC.
MWCO 5000D ultrafiltration module, effectively eliminate endotoxin, and suitable for precise cell cultivating and IVF.
(0.45+0.1)µm double layer PES terminal disinfection filter, assure that terminal pure water is absolutely axenic.
Flow Schematic

Specifications
Model | Standard | Eliminating endotoxin | Low TOC | Synthesizing |
Master-D | Master-DUF | Master-DUV | Master-DUVF | |
Output | Up to 2 liters/minute (less output with UF cartridge) | |||
Pure water outlet | 2: deionized water, ultrapure water | |||
Ultrapure water quality | ||||
Resistivity (25°C) | 18.2MΩ.cm | |||
TOC* | <10ppb | <10ppb | <3ppb | <3ppb |
Bacteria | <0.01cfu/ml | |||
Particle (>0.1µm) | <1/ml | |||
Endotoxin | N/A | <0.001Eu/ml | N/A | <0.001Eu/ml |
RNases | N/A | <1pg/ml | N/A | <1pg/ml |
DNases | N/A | <5pg/ml | N/A | <5pg/ml |
Deionized water quality | ||||
Resistivity (25°C) | >5MΩ.cm | |||
Feed water requirements | RO water, distilled water, deionized water, 5-45°C, 1atm* | |||
Dimension and weight | Length×Width×Height: 500×360×540mm / Weight: about 18Kg | |||
Electrical requirements | AC100-240V, 50/60Hz | |||
Power | 120W | |||
Standard configuration | Main body (Including 1 set of cartridge) | |||
Remarks:
*The value will be influenced by temperature and feed water´s quality.
Cartridges
Item no. | Commodity | Approximate replacement term /set |
PTC-AC-HZB1 | Reducing TOC cartridge | 9000 liters pure water |
PTC-MBR-M | Mixed bed resin cartridge | 1000 liters pure water |
PTC-MBR-M4 | 4-in-I mixed bed resin cartridge module | 4000 liters pure water |
PTC-UPPR-M | Ultrapure polishing resin cartridge | 1000 liters pure water |
PTC-UPPR-M4 | 4-in-1 ultrapure polishing resin cartridge | 4000 liters pure water |
TF-(0.45+0.1)µm-S | (0.45+0.1)µm terminal filter | - |
UF-5000D | MWCO5000D UF cartridge | - |
LAMP-(185nm&254nm) -10W-M | Double wavelength (185&254)nm uv lamp | 9000 hours |
LAMP-254-10W-M | 254 nm wavelength uv lamp | 9000 hours |
Remarks:
*The quality of inlet water will effect cartridge’s life.
HHitech-Products
Designing and manufacturing under ISO certification, top quality controlling commitment, ensure compliance with CE standards of EU, guarantee completely meeting with the highest grade I water standards of ASTM, CAP, CLSI, EP and USP.
HHitech-Service
As a responsible manufacturer with rich experience, operating in good faith, and the concept of common development, adhering to the customer-oriented and customer-needs, HHitech promises to provide professional comprehensive pre-sales and after-sales service in the whole business.
■ 12 months warranty except for consumables.
■ Timely guide for installation, usage and maintenance.
■ Free and continuous upgrade service for sold products.
By achieving a complete set of effective design and quality control from raw materials to final product, we are able to provide our customers with the highest quality Industry Electrodeionization (EDI) Modules for Ultra Pure Water in the shortest possible time and at competitive prices. The company's advanced awareness at the decision-making level and the aggressive professionalism of all employees have enabled the company to occupy a solid place in the market. Customers come first, and we continue to improve our services and products to meet customer needs.
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