Thermo Scientific 

Barnstead MicroPure 

Ultrapure water system

Operating Instructions

50148630 Revision B June 2016
© 2016 Thermo Fisher Scientific Inc. All rights reserved. 

Thermo Fisher Scientific Inc. provides this document to its customers with a product purchase to use in the 

product operation. This document is copyright protected and any reproduction of the whole or any part of this 

document is strictly prohibited, except with the written authorization of Thermo Fisher Scientific Inc.

The contents of this document are subject to change without notice. All technical information in this 

document is for reference purposes only. System configurations and specifications in this document supersede 

all previous information received by the purchaser. 

This document is not part of any sales contract between Thermo Fisher Scientific Inc. and a purchaser. This 

document shall in no way govern or modify any Terms and Conditions of Sale, which Terms and Conditions of 

Sale shall govern all conflicting information between the two documents.

Release history: 

For Research Use Only. Not for use in diagnostic procedures.
Preface

Thermo Scientific MicroPure i

Preface

© 2016 Thermo Fisher Scientific Inc. All rights reserved. 

These operating instructions are protected by copyright. Rights resulting thereof, particularly reprint, 

photomechanical or digital postprocessing or reproduction, even in part, are only allowed with the 

written consent of Thermo Electron LED GmbH. This regulation does not apply to reproductions for 

in-plant use. The contents of this operating instructions manual may change at any time and without 

any prior notice. In case of conflicting translations into foreign languages the German-language version 

of these operating instructions shall be binding.

Please read through the information given in these operating instructions on installing and operating 

the system before you begin installation and use of your water purification system. This is of particular 

importance, as we, the manufacturer, do not assume any liability for damage due to incorrect operation 

or use of the system other than the intended use.

Thermo Fisher Scientific Inc. provides this document to its customers with a product purchase to use 

in the product operation. This document is copyright protected. Any reproduction of the whole or any 

part of this document is strictly prohibited, except with the written authorization of Thermo Fisher 

Scientific Inc. The contents of this document are subject to change without notice. All technical 

information in this document is for reference purposes only. System configurations and specifications 

in this document supersede all previous information received by the purchaser.

Thermo Fisher Scientific Inc. makes no representations that this document is complete, accurate or 

error-free and assumes no responsibility and will not be liable for any errors, omissions, damage or loss 

that might result from any use of this document, even if the information in the document is followed 

properly.

This document is not part of any sales contract between Thermo Fisher Scientific Inc. and a purchaser. 

This document shall in no way govern or modify any Terms and Conditions of Sale, which Terms and 

Conditions of Sale shall govern all conflicting information between the two documents.

Legal Information

Warranty

Thermo Electron LED GmbH warrants the operational safety and functions of the Thermo Scientific 

Barnstead Ultrapure Water Systems only under the condition that:

• The system is installed and operated as per the operation manual. Do not use this product for 

anything other than its intended use.

• the system is not modified,

Specifications, terms and pricing are subject to change. Not all products are 

available in all countries. Please consult your local sales representative for details.
Preface

ii MicroPure Thermo Scientific

• only original spare parts and accessories that have been approved by Thermo Electron LED 

GmbH are used (third-party spares without Thermo Electron LED GmbH approval void the 

limited warranty),

• inspections and maintenance are performed at the specified intervals,

• an installation verification test is performed on commissioning the system for the first time and 

repeated after each preventative maintenance and repair activity. The warranty is valid from the 

date of delivery of the system to the customer.

• The above mentioned warranty conditions are subject to the general terms and conditions of sale, 

in effect at the time of purchase, which apply as well.
Preface

Thermo Scientific MicroPure iii

Explanatory notes on the operating instructions

EU Mark of Conformity

CSA - admission

Indicates a situation which, if not avoided, could result in damage to equipment 

or property.

Indicates a hazardous situation which, if not avoided, could result in death or 

serious injuries.

Indicates a hazardous situation which, if not avoided, will result in death or 

serious injuries.

Is used for applicational hints and useful information.

Risk of electric shock. Electrical work on the system is only to be carried out by qualified personnel.

Protective conductor connection

Connect the power supply to an electrical socket with a protective connection.

Indicates a situation in which protective gloves or clothing must be worn.

Indicates a situation in which protective goggles must be worn.
Preface

iv MicroPure Thermo Scientific

This information is valid for the system that is received. For quick and correct service, please include 

the following information on all inquiries and replacement parts orders which relate to your system:

• the serial number (located on the back of the system on the nameplate)

• the catalog number

Standards and directives

The Therno Scientific Barnstead Ultrapure water Systems complies with the following standards and 

directives:

• Low Voltage Directive 2014/35/EC

• EMC Directive 2014/30/EU

• ASTM D1193-6

• RoHs 2011/65/EU

Additionally, the ultrapure water system is in compliance with many other international standards, 

regulations and directives not listed here. Should you have any questions regarding compliance with 

national standards, regulations and directives applicable for your country, please contact your Thermo 

Fisher Scientific sales organization.

Indicates a situation in which breathing protection must be used.
Thermo Scientific MicroPure v

C

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i

Legal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

Explanatory notes on the operating instructions . . . . . . . . . . . . . . . . . . . . . . . . iii

Standards and directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Chapter 1 Transport and packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Examination on receipt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Complaints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Packaging for return shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Chapter 2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 3 Extend of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Extent of delivery MicroPure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Extend of delivery MicroPure with tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Available MicroPure systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Available MicroPure with tank systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 4 Intended Use of the device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Unintended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Chapter 5 Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Chapter 6 The Installation area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Chapter 7 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Connections of the MicroPure system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Connections of the MicroPure with tank system . . . . . . . . . . . . . . . . . . . . . . . 21

Start your MicroPure system into operation . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Illustration of drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Mounting the power pack (voltage supply) . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Contents
Contents

vi MicroPure Thermo Scientific

Chapter 8 Flow chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Chapter 9 How the MicroPure system functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Chapter 10 Initial start up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Putting system into operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Dispensing water from Dispensing valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Venting the sterile filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Chapter 11 Operating Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Description of control display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Control menu flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Chapter 12 System control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Operating modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Interval operating mode after switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Non-stop mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Interval operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

UV-Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

OFF mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

User menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Feedwater limiting value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Ultrapure water limiting value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

UV-Lamp operating time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Ultrapure cartridge operating hours counter . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Rinsing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Disinfection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Error history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Print out of Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Entering a code number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Code lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

OEM Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Set the limiting value for temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Set the rinsing time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Change the disinfection time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Set the interval pump time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Set the interval rinse time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Set the real-time clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Set the sending interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Language selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Switch units, conductivity/resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Switch temperature compensation on/off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Printer output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Contents

Thermo Scientific MicroPure vii

Chapter 13 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Replacing the ultrapure cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Disinfection of MicroPure system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Disinfection of MicroPure with tank system . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Replacing the ultrafilter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

UV-reactor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Replacing the UV-lamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Replacing the final end filter (0.2μm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Autoclaving the final end filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Chapter 14 Waste disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Chapter 15 Trouble shooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Chapter 16 Replacement parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Replacement parts MicroPure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Replacement parts MicroPure with tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Chapter 17 Consumables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Chapter 18 Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Chapter 19 Maintenance record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Chapter 20 Contact information Thermo Fisher Scientific . . . . . . . . . . . . . . . . . . . . . 91
Contents

viii MicroPure Thermo Scientific
1 Transport and packaging

Thermo Scientific MicroPure 1

Transport and packaging

Content

• “Examination on receipt” on page 2

• “Complaints” on page 2

• “Packaging for return shipment” on page 2

Do not pull the plastic foil over your head. Risk of suffocation.

Use the plastic foil only for packaging.
1 Transport and packaging

2 MicroPure Thermo Scientific

Ultrapure water systems are carefully inspected and packed prior to shipping, but damage 

could still possibly occur during transport. Lifting and carrying the Thermo Scientific 

Barnstead Ultrapure Water System, e.g. to the installation location, should be carried out by 

two people.

Examination on receipt

Check the completeness of the goods received against the packing list.

Complaints

Should damage have occurred to the goods during transport:

• Immediately contact your delivery transport agency.

• Save the complete packaging, including the cardboard box, for a possible inspection of 

them and/or return shipment of the system.

Packaging for return shipment

If possible, use the original box and packaging material.

When these are no longer available, then: 

Protect the system from shock by packing it in bubble wrap and/or packaging foam and a 

strong cardboard box.

Does the packaging show signs of damage? Inspect the system for damage.

Packaging

System

The time limit for claims is 6 days from the time of receipt of the goods. The right 

to claim for damages ceases when this time has elapsed.

• Only a trained person should take the system out of operation.

• Prior to send back a operated device, empty the water and dry the system and 

take out the cartridges.

• pack the ultrapure cartridges into a bubble wrap and/or packaging foam and 

take it with in into the package of the ultrapure water system.
2 Safety precautions

Thermo Scientific MicroPure 3

Safety precautions

• Do not install or operate the system until you have carefully read through these operating 

instructions and the notes and notices contained therein.

• Lifting and carrying the ultrapure water system, e.g. to the installation location, should be 

carried out by two people. To do this, lift the system in tandem at the two corner points 

beneath the bottom plate.

• The CE mark is nullified if you make any structural changes to the system or install 

products from other manufacturers in/on the system.

• Protect the system from frost. The temperature at the installation area must be between 

+2 °C and +40 °C.

• Always observe the applicable, pertinent codes and regulations valid at the installation 

location of the system and follow all applicable accident prevention regulations.

• The feedwater pressure must be at least 0.1 bar and at max. 6 bar or 1.45 to 87 PSI. 

When the feedwater pressure is higher, install an external pressure reducer.

• A low pressure check valve is recommended to prevent back flow of feedwater from water 

system.

• A grounded 100-240V, 50/60Hz electrical outlet must be available (see “Electrical 

connections” on page 15). 

• Access to the power supply cord and plug may never be restricted or obstructed.

• Unplug the system from the power outlet for all maintenance work on the system.

Observe these safety precautions for your own safety!

The Thermo Scientific Barnstead Ultrapure Water Systems are modern water 

purification system intended solely for the treatment of potable water. The water it 

produces is not fit for drinking.

Work may only be performed on the system electronics when the system has been 

switched off and when ESD protection is in place. Only specially trained personnel 

may work on the system‘s electronics.
2 Safety precautions

4 MicroPure Thermo Scientific

• An atmospherically vented floor drain with a nominal outer diameter of at least 63 mm 

(2.48 inch) (DN50 tube) must be present at the installation location. If no drain is 

provided it is recommended to install for safety reasons a water watcher (for European 

specifications only). Failure to provide this will release the manufacturer from liability for 

any water-induced damage that may result.

• Proceed as follows if the system is not to be operated for an extended period, e.g., over 

extended weekend, or during a vacation period:

• Switch the system off (unplug the mains plug).

• Close the feedwater inlet (close the feedwater tap).

The pump would be damaged if the system were to run without any supply of feedwater. 

The manufacturer will not accept any liability should this occur.

• The system must be disinfected or rinsed after an extended down time. The disinfection 

procedure is described under “Disinfection of MicroPure system” on page 61.

• The surface or wall on which the system is to be installed or mounted must have an 

adequate load-carrying capacity (check the capacity and stability of the wall). The dry 

weight of the system is given under “Dimensions and weight of MicroPure” on page 15

and “Dimensions and weight MicroPure with tank” on page 13. When the internal tank 

is filled, the system has a weight during operation of approx. 32 kg / 70.55 lbs.

• The surface on which the system is installed must be level and stable-not to exceed a 

maximum of 2% deviation from evenness is recommended.

• When installing the water purification system, always ensure that there is adequate space 

all around the system (see “Accessibility to MicroPure system” on page 16) to ensure that 

ease of use or easy replacement of materials (e.g., filter change, connection) is possible at 

all times.

Visually inspect the system at regular intervals. Clean up any water or spills found around the 

system immediately. 

Never look directly into a switched-on UV-lamp, as UV-light endangers eyesight!

To avoid the risk of pinching, crushing, cutting or electrical shock, never perform 

maintenance on the system without its protective housing, or while it is in operation.

Maintenance work on the system may only be performed by trained, authorized 

specialists.
2 Safety precautions

Thermo Scientific MicroPure 5

.

• To avoid tripping, ensure that the tubings do not lay over the floor.

• Apply the general rules of hygiene for laboratories when working with the system.

• Do not use any oxidative cleaning agents for cleaning the system. These can damage the 

system.

• Proceed as follows when the system has a defect:

• Switch the system off and unplug the system from power outlet.

• Shut off the feedwater supply.

• Contact your local service organization.

• Wear safety gloves when working with disinfectant solutions.

• If your skin should come into contact with a chlorine product, rinse it immediately with ample, 

fresh water.

• The system, or system components, may heat up as a result of a defect. It is recommended to 

always wear appropriate safety gloves to prevent skin damage or burns.

• Wear safety gloves when changing the UV-lamp, in order to prevent that your skin comes in 

contact with the UV-lamp glass.

• Wear safety glasses when working with disinfectant solutions.

• If your eyes come into contact with a chlorine product, rinse them immediately with ample, 

fresh water and immediately contact a physician.

• Check the UV-lamp before initial start.

• If the UV-lamp is broken

 wear a breathing protector, filter category FFP3 and replace the UV-lamp. For disposal the 

UV-lamp refer to “Waste disposal” on page 73.

 ventilate the room well.

The Hg content in the UV-lamp is so low so that no damage to the 

environment can arise.
2 Safety precautions

6 MicroPure Thermo Scientific
3 Extend of delivery

Thermo Scientific MicroPure 7

Extend of delivery

Contents

• “Extent of delivery MicroPure” on page 8

• “Extend of delivery MicroPure with tank” on page 8

• “Available MicroPure systems” on page 9

• “Available MicroPure with tank systems” on page 9
3 Extend of delivery

8 MicroPure Thermo Scientific

Extent of delivery MicroPure

The following items are included with the MicroPure ultrapure water system.

1x MicroPure ultrapure water system Item No.: 5013xxxx

1x Ultrapure cartridge Item No.: 09.1006

including 1 x assembly kit

consisting of:

1x Final end filter (sterile filter 0.2μm) Item No.: 09.1003

1x Feedwater connecting kit Item No.: 25.0075

1x Rinse water tube, o.d 8 mm/0.31inch, 3m Item No.: 18.0036

1x Table top power pack Item No.: 50149597

1x Universal holder Item No.: 21.1007

1x Universal adapter Item No.: 21.1006

1x Rubber connector to nema plug connector Item No.: 50132200

1x Rubber connector to british ST plug connector Item No.: 50132203

1x Rubber connector to euro plug connector Item No.: 50132215

Extend of delivery MicroPure with tank

The following items are included with the MicroPure ultrapure water system.

1x MicroPure with tank Item No.:5013xxxx

1x Ultrapure cartridge Item No.: 09.1006

including 1x assembly kit

consisting of:

1x Final end filter (sterile filter 0.2μm) Item No.: 09.1003

1x Rinse water tube, o.d 8 mm/0.31inch, 3m Item No.: 18.0036

1x Table top power pack Item No.: 50149597

1x Universal holder Item No.: 21.1007

1x Universal adapter Item No.: 21.1006

1x Rubber connector to nema plug connector Item No.: 50132200

1x Rubber connector to british ST plug connector Item No.: 50132203

1x Rubber connector to euro plug connector Item No.: 50132215
3 Extend of delivery

Thermo Scientific MicroPure 9

Available MicroPure systems

Available MicroPure with tank systems

Item No.: System Equipment

50132366 MicroPure standard

50132368 MicroPure UF

50132370 MicroPure UV/UF

50132373 MicroPure UV

Item No.: System Equipment

50132367 MicroPure with tank standard

50132369 MicroPure with tank UF

50132372 MicroPure with tank UV/UF

50132374 MicroPure with tank UV
3 Extend of delivery

10 MicroPure Thermo Scientific
4 Intended Use of the device

Thermo Scientific MicroPure 11

Intended Use of the device

Intended Use

The Thermo Scientific Barnstead Ultrapure Water Systems are laboratory systems and is used 

for treatment of water. The system allows the purification of water into the water categories 

mentioned in the standards of ASTM 11.01 and ASTM 11.02.

The Thermo Scientific Barnstead Ultrapure Water Systems are designed to be installed and 

used in the following application areas:

• Laboratories for cell biological and biotechnological work with the safety levels L1, L2 

and L3.

• Medical and microbiological laboratories according to DIN EN 12128.

• Laboratories in the central area of clinics and hospitals. 

Unintended use

The system must not be operated outside of the specifications as described in the operating 

manual. In particular, the system may not be used for production of drinking water and drug 

manufacturing. The system must not be used as a medical device and outside of laboratories.
4 Intended Use of the device

12 MicroPure Thermo Scientific
5 Technical Specification

Thermo Scientific MicroPure 13

Technical Specification

Check at regular intervals the quality of your feedwater.

Feedwater requirements

Source Potable tap water pretreated by reverse osmosis, ion exchange or 

distillation.

Feedwater conductivity < 5μS/cm (0.2 M:·cm)

Free chlorine max. 0.05 ppb

TOC max. 50 ppb

Bacteria count < 100CFU/ml

Turbidity < 1.0 NTU

Carbon dioxide (CO2) max. 30 ppm

Silicate max. 2 ppm

Particles Filtration to 0.2μm is recommended for protection of the internal 

filter/final filter

Temperature +2°C - +35°C

Pressure (only for MicroPure without tank) 0.1 - 6 bar /1.45 - 87 PSI (at a pressure > 6 bar / 87 PSI a pressure 

reducer must be installed upstream of the system.

Product water quality ASTM Type I

Standard UV UF UV/UF

Conductivity (reference temperature +25 °C) μS/cm 0.055 0.055 0.055 0.055

Resistance (reference temperature +25°C) M:·cm 18.2 18.2 18.2 18.2

TOC value ppb 5-10 1-5 5-10 1-5

RNase

DNase

ng/ml

pg/ul

- -

- -

- -

- -

- - 

- -

< 0.003

< 0.4

Bacteria CFU/ml < 0.1 < 0.1 < 0.1 < 0.1

Bacterial endotoxins EU/ml - - - - < 0.01 < 0.01

Particles μm < 0.2 < 0.2 < 0.2 < 0.2

Performance l/min 1.0 1.0 1.0 1.0

Dimensions and weight MicroPure with tank

Height 550 mm / 21.65 inch

Width 300 mm / 11.81 inch

Depth 390 mm / 15.35 inch

Base area 277 x 372 mm / 10.91 x 14.65 inch

Weight including ultrapure cartridge and full tank 33 kg / 72.77 lbs 
5 Technical Specification

14 MicroPure Thermo Scientific

550(21 6. 5)

300(11.81) 390(15.35)
5 Technical Specification

Thermo Scientific MicroPure 15

Dimensions and weight of MicroPure

Height 550 mm / 21.65 inch

Width 300 mm / 11.81 inch

Depth 300 mm / 11.81 inch

Base area 277 x 372 mm / 10.91 x 14.65 inch

Weight including ultrapure cartridge 28 kg / 61.74 lbs 

300(11.81)

550(21 6. 5)

300(11.81)

Water connections

Feedwater tubing Tube outer diameter 8mm/0.31 inch

Rinse water tubing Tube outer diameter 8mm/0.31 inch

Tank overflow tubing (only MicroPure with tank) Tube outer diameter 8mm/0.31 inch

Electrical connections

Input voltage AC 100 – 240 VAC, 50 – 60 Hz, 2.0 A max

Output voltage DC 24 V, 5.0 A max

System connection DC 24 V, 80 W

Serial Interface RS232

Potential free contact maximum 30V, 2A

Protection class Class II (external SMPS certified as Class I)

Materials of parts which contact water

Adjustable pressure retaining valve NBR = Acrylnitril Butadien Rubber

Pump head Nylon with glass fibre

UV lamp High-purity synthetic quartz
5 Technical Specification

16 MicroPure Thermo Scientific

UV housing Stainless steel

Ultrapure cartridge PP = Polypropylene 

UF housing PC = Polycarbonate

Rinsing solenoid valve PA = Polyamide 

Dispensing valve PET = Polyethyleneterephthalate 

Conductivity measuring cell POM = Polyoxymethylen, stainless steel

Distributor block POM = Polyoxymethylen

Connections POM = Polyoxymethylen

Tubings PE = Polyethylene

O-Rings EPDM = Ethylene propylene diene rubber

Accessibility to MicroPure system

Space on left and right from the side of the system at least 300 mm / 11.81 inch

Space to the back of the system at least 200 mm / 7.87 inch

Top space at least 400 mm /15.75 inch

Space to front of system Free accessibility

Ambient conditions

During operation Storage

Operation area Indoor rooms Indoor rooms

Maximum altitude about 

sea level

 up to 2000 m up to 2000 m

Temperature range min. +2°C, max +40°C, 80% rel. rH, 

non-condensing

min. +2 °C, max. +60 °C, 90% rel. rH, non 

condensing

Line-voltage variation Not more than +/- 10 % of the line voltage -- (not applicable)

Transient overvoltages As usually occur in the supply network 

(overvoltage category II acc. to IEC 

60364-4-443) Note: The rated level of 

transient overvoltage is the withstand 

impulse voltage acc. to overvoltage category 

II of IEC 60364-4-443.

-- (not applicable)

Ventilation requirements no special requirements no special requirements

Degree of pollution 2 2

Materials of parts which contact water

Airborne sound emission

Sound pressure level 49 db(A)
6 The Installation area

Thermo Scientific MicroPure 17

The Installation area

Take the following criteria into consideration when selecting the installation area:

Feedwater pressure (potable tap water) not less than 0.1 bar (1.45 PSI) and not greater than 6 

bar (87 PSI).

• Minimum air temperature +2 °C

• The surface on which the system is installed must be level and stable-not to exceed a 

maximum of 2% deviation from evenness is recommended.

• A smooth wall is required when the system is to be wall-mounted. Check the statics of the 

wall or standing surface. The standing or wall surface must be strong enough to hold the 

system. (for system weight, see “Accessibility to MicroPure system” on page 16).

• An atmospherically floor drain with an outer diameter of 63 mm or 2.48 inch (DN 50 

tube) shall be provided.

• Unobstructed draining of the rinsing water to the drain must be ensured.

When no floor drain is available, install a water watcher to protect against water damage 

(available only for Europe).

• A check valve is recommended in the feedwater line to prevent back flow of feedwater 

from the water system.

• An electric socket with protective connection must be available for connection of the 

system to the voltage supply.(see “Electrical connections” on page 15)

• Ample working space must be provided around the system for easy and pleasant 

replacement of consumable and replacement parts and for ease of operation (see 

“Accessibility to MicroPure system” on page 16).

• Easy access for operation and control of the system.

The operator is obliged to ensure, that the installation of the water purification unit 

and its operation are carried out in compliance with all national and international 

guidelines, applicable and valid for the place of installation.

If necessary, measures to protect the drinking water have to be taken by installing 

appropriate components.

The feedwater pressure must not be allowed to go above 6 bar. Install an additional 

pressure reducer when the feedwater pressure is higher.

Free gravity flow to drain must be ensured. 
6 The Installation area

18 MicroPure Thermo Scientific
7 Installation

Thermo Scientific MicroPure 19

Installation

Contents

• “Connections of the MicroPure system” on page 20

• “Connections of the MicroPure with tank system” on page 21

• “Start your MicroPure system into operation” on page 22

• “Illustration of drain” on page 25

• “Wall Mounting” on page 26

• “Mounting the power pack (voltage supply)” on page 27
7 Installation

20 MicroPure Thermo Scientific

Connections of the MicroPure system

1. Quick connectors for ultrapure cartridge

2. 1/4“ threaded fitting connector for sterile filter

3. Voltage supply connector for 24V DC

4. Rinse water connection for o.d 8mm/0.31 inch tube

5. Feedwater connection for o.d 8mm/0.31 inch tube

1

3 4 5

2

3 4 5
7 Installation

Thermo Scientific MicroPure 21

Connections of the MicroPure with tank system

1. Quick connectors for ultrapure cartridge

2. 1/4“ threaded fitting connector for sterile filter

3. Voltage supply connector for 24V DC

4. Rinse water connection for o.d 8mm/0.31 inch tube

5. Tank overflow connection for o.d 8mm/0.31 inch tube

6. 1/4“ threaded connector for sterile vent filter

1

2

3

5 4

6

Connection at backside of system

3

4

5
7 Installation

22 MicroPure Thermo Scientific

Start your MicroPure system into operation

• After complete installation all tubings have to be checked for their correct 

position on the systems panel and there is no leakage after open the feedwater 

supply. (Feedwater supply only MicroPure)

• To avoid tripping, ensure that the tubings and wires do not lay over the floor.

Step Action Figure

1 Place the MicroPure system at the desired location (on 

the workbench, under the workbench, or wall-mount). 

A wall attachment kit is available for wall-mounting.

See Section “Wall Mounting” on page 26.

2 Remove the cover from the ultrapure cartridge by 

pressing the snapper and pull the cover off towards the 

front.

3 a. Locate the ultrapure cartridge.

b. Place the ultrapure cartridge in the rear section 

of the unit, insert the two quick connectors into 

the ultrapure cartridge. When you hear an 

audible click you can be sure that the quick 

connectors have been inserted correctly. 

The quick connectors are attached to the unit in such a 

manner so as to prevent installing the ultrapure cartridge 

incorrectly. 

Snapper

Cover

Ultrapure

cartridge

b.)

Quick

connectors
7 Installation

Thermo Scientific MicroPure 23

4 a. Mount the feedwater connecting kit together 

and connect it with the o.d 8mm/ 0.31 inch 

tube to the external ion exchanger or feedwater 

inlet line. The other end of the tube connect to 

the feedwater connection by unscrewing the 

fitting on the system.

b. After unscrewing the fitting put the o.d 

8mm/0.31 inch tube through the fitting and 

mount the white O-ring on it.

c. Screw the fitting back to the system.

d. Unscrew the fitting on the connection for rinse 

water of the system and connect the o.d 

8mm/0.31inch tube as describe at step 4b and 

route the tube with a free gravity fall to the 

drain (see “Illustration of drain” on page 25).

e. Open the feedwater tap..

If you are using a MicroPure system with tank proceed as 

follows the next coming steps.

Step Action Figure

a.)

b.)

o.d 8mm/0.31 

inch tube

Reduction 3/4“ Union nut

piece

Fitting

Flat

seal

Rinse water 

connection

o.d 8mm/0.31 

inch tube

Fitting

White O-ring

o.d 8mm/0.31 inch tube

Fitting

White O-ring

Feedwater

connection

d.)
7 Installation

24 MicroPure Thermo Scientific

5 Put in the o.d 8mm/0.31 inch tube into the rinse water 

connection of the system on the systems panel and route 

the tube with a free gravity fall to the drain (see 

“Illustration of drain” on page 25).

6 Put in the o.d 8mm/0.31 inch tube into the tank 

overflow connection of the system on the systems panel 

and route the tube with a free gravity fall to the drain 

(see “Illustration of drain” on page 25).

7 Unscrew the lid for the internal 5L feedwater tank and 

fill the tank with pretreated water.

Only feedwater that has been pretreated by reverse 

osmosis, ion exchange or distillation is to be used.

8 Screw the sterile filter supplied with the unit into the 

1/4“ thread of the sampling tap. Open the feedwater tap 

(only MicroPure) and check that there is no leakage on 

the connectors and tubes.

Step Action Figure

Rinse water 

connection

o.d 8mm/0.31 

inch tube

o.d 8mm/0.31 

inch tube

Tank overflow 

connection

Lid

5 L tank

Sterile filter

1/4“ thread
7 Installation

Thermo Scientific MicroPure 25

Illustration of drain

Illustration of drain siphon for inserting the rinsing water 

and overflow tubing (only MicroPure with tank).

Shorten the rinsing water and overflow tubing (only 

MicroPure with tank) to the required length and route it 

to an atmospherically vented drain.

The tubes that run from the MicroPure system to the 

drain must be routed with a downward slope and without 

any kinks or restrictions, as this would result in backing 

up of the draining water.

If a standard drain siphon is in place, the ends of the tubes 

must be located at least 20 mm/ 0.75 inch above the 

drain. Attach the tubes in such a manner that they remain 

in their position.

Minimum distance

20 mm/0.75 inch

Overflow tube

Rinse water tubing

Drain
7 Installation

26 MicroPure Thermo Scientific

Wall Mounting

You can also mount your MicroPure system on the wall. To do this, use the 

wall-mounting fixture included in the accessories (purchased separately Item No.: 

09.2212). Before you begin mounting the unit on the wall you must check the 

strength of the wall to ensure that it is suitable for supporting the unit (see 

“Dimensions and weight MicroPure with tank” on page 13 and “Dimensions and 

weight of MicroPure” on page 15for the unit).

The screws and anchors supplied with the wall-mounting brackets are only suitable 

for attaching the wall-mounting brackets to a concrete wall or a solid (masonry) wall.

Step Action Figure

1 Use the wall-mounting brackets to mark the anchoring points with a pen 

on the wall at the location where the holes are to be drilled for the 

wall-mounting bracket.

Use an 8 mm/ 0.31 inch drill bit to drill the holes.

See figure below.

2 Insert the three S8 Nylon anchors into the holes and then use the three 

wood screws to firmly screw the wall-mounting brackets into place.

3 Lift the unit and hang the back of it on the wall-mounting brackets.

Always lift and carry the unit in tandem (two people), never alone. Lift the 

unit at the two bottom corners.

mm/ 7.48 inch

mm/ 3.74 inch
7 Installation

Thermo Scientific MicroPure 27

Mounting the power pack (voltage supply)

Whenever possible, mount the power pack on the wall to the left or right of the 

ultrapure water system where it is freely accessible and does not come in contact with 

water for get wet.

Take caution to ensure that the suitable plug and the power cable do not get wet. 

Mount the power pack with dry hands.

Risk of an electrical shock.

Step Action Figure

1

Remove the protective foil on the back of the 

universal holder and from the universal adapter 

and attach the universal holder to the center of 

the back of the main adapter.

2 Attach universal adapter to a smooth wall surface 

with supplied screws or with glue (not provided).

Universal

adapter

Universal

holder

Universal foil

Mains

adapter

Universal adapter Wall surface
7 Installation

28 MicroPure Thermo Scientific

3 a. Take the power supply unit and press it 

with the attached universal holder onto 

the wall and then slide it down (see red 

arrows).

b. Plug the power cable into the power 

supply unit.

Do not bring the power pack in contact with 

water. Risk of an electrical shock..

The removable power cable must always face 

downward when the power supply unit has been 

mounted.

5 Now, connect the power supply unit to the 

“Power supply“ connection on the right side of 

the MicroPure system. Next plug the power 

supply to a grounded 100 - 240V, 50/60 Hz 

power outlet.

6 Switch the unit on and enter the serial number of 

the ultrapure cartridge in the control menu 

(“Replacing the ultrapure cartridge” on page 59).

The unit is ready for use now.

Step Action Figure

Power supply unit 

with support

Universal adapter

Mains adapter

Power cable

Power supply

connection on 

the unit
8 Flow chart

Thermo Scientific MicroPure 29

Flow chart

The following flow chart describes the MicroPure/ MicroPure with tank system with 

full equipment (ultrafilter, UV-lamp included). Depending on your MicroPure 

system configuration the UV-lamp or ultrafilter are inapplicable. The flow direction 

remains as described in the flow diagram.

Feed water 

conductivity

cell

Deionization

cartridge

Ultrafilter Valve

UV lamp

Pump

Final 

conductivity

cell 

Ultrapure water

Feed water

System dispenser

0.2 μM 

final filter

Drain

Purification flow Recirculation flow Waste water
8 Flow chart

30 MicroPure Thermo Scientific
9 How the MicroPure system functions

Thermo Scientific MicroPure 31

How the MicroPure system functions

Tap water coming from the central line or the storage reservoir (storage reservoir only 

MicroPure with tank) that has been pretreated by reverse osmosis, ion exchange or distillation 

flows through a pressure reducer and into the ultrapure water system, where the conductivity 

is monitored. A pressure pump directs this feedwater through UV-photooxidation (only 

systems with UV, UV/UF) and then through the ultrapure cartridge. From there the water 

flows through an ultrafilter ( only systems with UF, UV/UF). Then follows a permanent 

definition of conductivity measured by a special conductivity measuring cell equipped with 

temperature compensation. When ultrapure water is dispensed from the system, it flows 

through an end filter before reaching the point of use. During Interval operation, the water in 

the system is circulated in an internal circuit at regular intervals.
9 How the MicroPure system functions

32 MicroPure Thermo Scientific
10 Initial start up

Thermo Scientific MicroPure 33

Initial start up

Contents

• “Putting system into operation” on page 34

• “Dispensing water from Dispensing valve” on page 35

• “Venting the sterile filter” on page 35
10 Initial start up

34 MicroPure Thermo Scientific

Putting system into operation

The system must warmed up or cooled down to room temperature before being put 

into operation.

Check that all tubing connections have been made as described in Chapter 

“Connections of the MicroPure system” on page 20 and “Connections of the 

MicroPure with tank system” on page 21s. 

Switch the system on by pressing the “On/Off“ button. After a compulsory rinse the system switches 

to the last operating mode (Interval or Nonstop mode with ion chromatograph in Analyzer mode).

To vent air from the system, switch the system 3 times successively to “Rinsing“ in 

the menu and discard approx. 5 litres of water each time with the manual dispenser. 

The ultra pure water limiting value may come on during this process.

Use this 'NONSTOP'-key to switch the system to the “Nonstop“ operating mode.

When the unit has successfully reached the pure water value that you have specified, you can return 

the unit to the “Interval“ mode by pressing the “INTERVAL“ button while the unit is in the 

“Nonstop“ mode.
10 Initial start up

Thermo Scientific MicroPure 35

Dispensing water from Dispensing valve

Venting the sterile filter

Step Action Figure

1 Turn knob counter clock wise to dispense water. 

Water flow out of unit and can be adjusted with turning the 

knob. Turn the knob clockwise to slow down or stop water flow.

Step Action Figure

1 The first time you dispense pure water at the main dispenser 

through the 0.2 micron final filter, open the white knurled screw.

2 Do not close the knurled screw until pure water runs out of the 

opening at the knurled screw continuously.

CAUTION Do not over tighten knob once flow stops, 

doing so could damage dispensing valve.

Knob

Counter clock 

wise to 

dispense water

Sterile filter

Knurled screw
10 Initial start up

36 MicroPure Thermo Scientific
11 Operating Elements

Thermo Scientific MicroPure 37

Operating Elements

Contents

• “Description of control display” on page 38

• “Control menu flow diagram” on page 39
11 Operating Elements

38 MicroPure Thermo Scientific

Description of control display

Indicates the 

current operating 

status of the unit

Resistance value of the 

pure water

TOC not available for MicroPure 

systems. “- -“ is shown in the 

display

Display for ON/OFF status, 

temperature, resistance 

indicator and operating 

status of the TC 

(temperature compensation 

is turned on).

Temperature 

measurement

For activating the Nonstop 

mode for sampling, for 

increasing the numeric 

values in the menu.

On/Off switch

UV button enables manual 

operation of the UV lamp. 

The desired value can be 

changed in the Mode menu.

The Menu button provides access to the following 

system parameters:

• Feedwater limiting value 

• Ultra pure water limiting value

• UV-Lamp operating time

• Cartridge number and maintenance interval

• Rinsing

• Disinfection

• Display of error storage

• Unlocking of the factory error settings using a 

password

For activation of the 

Interval mode, for 

decreasing of numeric 

values in the menu

Confirms the 

program and 

selection.

Indicates an error when 

it occurs.
11 Operating Elements

Thermo Scientific MicroPure 39

Control menu flow diagram

Interval

18.2 M:·cm

UV -- ppb

Nonstop

18.2 M:·cm TC

UV -- ppb

OEM Menu

Press enter

OEM Menu

Max. temp. 

35 °C

OEM Menu

Rinse time

30 sek.

OEM Menu

Desinfect. time

30 min.

OEM Menu

Pump interval

05 min.

OEM Menu

Rinse interval

0.5 sek.

OEM Menu

Day 11 Month 07

Year 2015

Hours 11 Min. 21

OEM Menu

Send interval

01:00 h:min

OEM Menu

Temp. comp.

On

Interval

18.2 M:xcm

UV -- ppb

OEM Menu

μS/cm - M:·cm

μS/cm

UV Menu

Press Enter

UV Menu

UV Time

3000 h

UV Menu

UV Intensity

Off

UV Time

ultrapure cartridge

New UV lamp?

Press enter

_ 450 days

OEM Menu

Language

English

Feedwater

3.55 M:·cm

Limit value feed

2.0 μS/cm

Error display

Standby: Off

Lim. val.pure w.

2.0 μS/cm

UV Time

00005 h

UV Intensity

--

Serial no.:

ultrapure cartridge

Press enter

00000/00

Rinse?

Press enter

Disinfection?

Press enter

Error history

Press enter

Code

Press enter

INTERVAL and NONSTOP key 

Menu key Menu and UV key 

SW Version 4.1

OEM Menu

MicroPure

Ser. No.:00000/00

Customer Menu
11 Operating Elements

40 MicroPure Thermo Scientific
12 System control

Thermo Scientific MicroPure 41

System control

Contents

• “General information” on page 42

• “Operating modes” on page 40

• “User menu” on page 45

• “OEM Menu” on page 52
12 System control

42 MicroPure Thermo Scientific

General information

The software structure consists of five operating modes and four menus, which will be 

described in more detail in the following sections. Measured values are continually shown in 

the display and/or in the menus. 

Should an error occur, the corresponding fault message is transmitted via the potential-free 

output and is shown in clear text in the 4th line of the display. In the case of several errors 

occurring at one time, they are alternately shown in the display.

Operating modes

Interval operating mode after switching on

Initially press the ON/OFF button. Then the display will show at first the system version, the 

system serial number and the software version number to display for 3 seconds. The system 

then automatically switches to the Interval operating mode (see “Interval operation” on 

page 43), whereby the green backlighting of the display is switched on and remains on until 

system control is switched off via the ON/OFF-button. The “UV” text message is displayed 

when the UV-lamp is switched on. The “TC” message is displayed when measured values are 

subject to temperature compensation. Further to these, the measured values for ultrapure 

water (measuring cell LF1) and temperature are also displayed. The display of messages and 

measured values are independent of the operating mode.

The display shows:

Shows the error
12 System control

Thermo Scientific MicroPure 43

Non-stop mode

A press on the “nonstop” button switches the system to the non-stop mode.The non stop 

mode is the only mode in which water can be dispensed from the system. It is also the mode 

in which the system will continuously recirculate water with the system to keep the water 

ready for use. The circulation pump starts to run, the (UF) rinsing solenoid valve (V4) opens 

for the set “Intv.rinse time”. Non-stop operation is stopped automatically latest after 2 hours. 

Then the system operates in the “Interval”-Mode. The message UV is shown in the display 

when the UV-lamp is switched on. The UV lamp can only be switched on and off in this 

non-stop mode (see UV lamp). 

The display shows:

Interval operation

The system is in the Interval mode when the system is switched on with the ON/OFF button. 

The Interval mode is used when the water system is not needed to be in non-stop mode. This 

mode helps protects the system against bacteria growth as it will periodically recirculate water. 

Water can not be dispensed in this mode. The pump runs for the set interval pump time and 

the rinsing solenoid valve (V4) opens for the set “Interval rinse time”. When the interval 

pump time has expired, the pump is switched off until the end of the standstill time. The 

standstill time is given by the difference between half an hour and the interval pump time, so 

that the pump and the solenoid valve are actuated in a half-hourly rhythm. 

The display shows:
12 System control

44 MicroPure Thermo Scientific

UV-Lamp

A press on the UV-button results in showing the letters “UV”. However the UV-lamp is only 

switched on when the system is in Nonstop operation. The UV-lamp is switched off at the 

end of Nonstop operation (settable). When Nonstop operation is manually ended by a press 

on the “Non stop” button, the UV-lamp is switched off after glowing for 0.5 hours. 

The operating time of the UV-lamp is recorded and the “UV time” error message is shown in 

the display when the limiting value set for this time is exceeded.(TOC measuring not available 

for MicroPure systems.)

The display shows:

OFF mode

A second press on the ON/Off-button causes the display to go dark and all text output on the 

display to be extinguished. No outputs are now switched.

Display shows for

MicroPure systems

“- - ppb“
12 System control

Thermo Scientific MicroPure 45

User menu

All measured values, operating times and limiting values which are relevant for the user can be 

set and read in this menu.

A press on the menu-button brings you to this menu. Each further press on the menu-button 

moves you further from one menu prompt to the next.

Settings can be changed with the arrow buttons. When you confirm a value by pressing on the 

Enter-button, you are taken to the next menu prompt. Settings can only be made when 

system control has been previously unlocked by entering a valid code number. (see “Code 

lock” on page 51)

To simplify changing settings, a press on the UV-button allows you to select a certain 

individual digit in the numerical value that you want to change. The arrow buttons can now 

be used to enter the new number from 0 to 9 at that position.

Feedwater limiting value

A single press on the menu-button allows the feedwater conductivity to be read or the limiting 

value of it to be changed. The fault message “Limit value feed” flashes in the 4th line of the 

display when the limiting conductivity value is exceeded.

Feedwater measuring range: 10 – 0.01 M:·cm

Limiting value setting range: 0.1- 50.0 μS/cm

Basic setting: 2.0 μS/cm

Set the limiting value using the arrow buttons. 

With settings above 50 μS/cm / 0.02 M:·cm, the limiting value is switched off and the word 

off appears in the display.

Press the Menu-button once then the display shows:
12 System control

46 MicroPure Thermo Scientific

Ultrapure water limiting value

Two presses on the menu-key in this menu allow the fault display for the pure water limiting 

value and the pure water limiting value to be set. As soon as the fault display is switched on, 

the fault will be displayed both in Stand-by mode and in Production mode. When the fault 

display is switched off, the fault is only displayed in Production mode. The “Lim. val.pure w.” 

message is displayed when the limiting value is exceeded. 

Ultrapure water measuring range: 0.1 M:·cm

Limiting value setting range: 0.055- 5.000 μS/cm

Basic setting: 0.200 μS/cm

Basic setting, fault suppression: On

When a setting above 5.0 μS/cm is entered for the limiting value, the limiting value is 

switched off and the word “Off” appears in the display.

Press the Menu-button twice then the display shows:
12 System control

Thermo Scientific MicroPure 47

UV-Lamp operating time 

In this menu the operation hours of the UV-lamp are indicated the display under “UV time”. 

The fault message "UV duration" is displayed when the maximum operating time has been 

reached.

Press the menu-button 3 times then the display shows:

Ultrapure cartridge operating hours counter

After fourth press on the menu-button the operating hours counter for the ultrapure cartridge 

is set by input of a valid serial number. 

Press the menu-button 4 times then the display shows:

Rinsing Procedure

A fifth press on the menu-button calls the question asking if rinsing is to be carried out. A 

press on the enter-button confirms this and triggers the rinsing procedure. The pump starts 

and the rinsing solenoid valve V4 opens for the rinsing time set in the OEM-menu. 

The remaining rinsing time is shown in the display during rinsing.

Neither fault messages nor measured values are displayed during rinsing.

When the rinsing procedure is finished, the system returns to the last operating state (Interval 

or Nonstop).

• The UV-intensity is not available for the MicroPure system.

• For more details see under section“Replacing the UV-lamp” on page 69.

For more details see under section “Replacing the ultrapure cartridge” on page 59.
12 System control

48 MicroPure Thermo Scientific

Step Action Figure

1

Press the menu-button 5 times then the display 

shows:

2

Confirm rinse by pushing the enter button.

The rinse cycle is carried out for 30 sec.
12 System control

Thermo Scientific MicroPure 49

Disinfection Procedure

A sixth press on the menu-button calls the question asking if a disinfection is to be carried 

out. A press on the enter-button confirms that a disinfection should be carried out, followed 

by the demand “Disinfection cartridge must be fitted“. When this has been fitted, a 

confirming press on the enter-button triggers the disinfection procedure. The pump starts for 

the full time set in the OEM-menu and, when the half of this time has elapsed, the rinsing 

solenoid valve opens and stays open until the disinfection procedure has finished. The 

demand "New Filterset" is then displayed. When this has fitted, confirmation with the 

enter-button causes the system to return to the last operating state.

The remaining disinfection time is counted down and displayed during disinfection.

Step Action Figure

1

Press the menu-button 6 times then the display 

shows:

2 Confirm disinfection by pushing the enter 

button.

Change the ultrapure cartridge with the 

disinfection cartridge (see under chapter 

“Disinfection of MicroPure system” on page 61).

3 Confirm with enter.

The disinfection is carried out for 30 min, 

indicating the remaining time.

The complete process is described under section “Disinfection of MicroPure system” 

on page 61.
12 System control

50 MicroPure Thermo Scientific

Error history

Confirmation of this prompt with Enter allows the error storage to be looked through.

Two errors, each with date and time, are shown as a example in the display. Pressing the arrow 

buttons takes you successively through preceding or following errors.

Press the menu-button to end the error display. This takes you to the next menu prompt.

Print out of Data

Step Action Figure

1

Press the menu-button 7 times then the display 

shows:

2 Confirm error history by putting the enter 

button.

Now you can see two last saved errors with date 

and time. The error code can be requested at the 

local service organization.

Printing is not a feature in the MicroPure systems
12 System control

Thermo Scientific MicroPure 51

Entering a code number

To prevent unauthorized access to system control, settings can only be changed when a valid code 

number is entered and confirmed with Enter in this menu. Valid codes are found in this manual 

in section “Code lock” on page 51.

Press the menu-button 9 times then the display shows:

Code lock

To prevent unauthorized access to system control settings, changes to these settings can only 

be carried out when a correct code number has been entered and confirmed with Enter.

In deviation to existing programs, control release can be given at three levels. Only the menu 

is released for changes at the first level. Both the menu and the OEM menu are released at the 

second level. All menus are released at the third level.

Code numbers:

You can assign the permissible code numbers listed in the table on the following page 

to appropriate members of the staff etc. 

When names have been entered, tear the page out and file it where it is safe from 

unauthorized viewing.

Press the menu-button 10 times to leave the User menu and the system is back to the 

last System system operation that you have choose.

No. Menu No. Menu + OEM menu No. All levels

1 0150 4 0450 7 0750

2 0250 5 0550 8 0850

3 0350 6 0650 9 0950
12 System control

52 MicroPure Thermo Scientific

OEM Menu

Basic settings and limiting values can be changed in this menu. To make such changes in the 

OEM-menu, the system must be unlocked first.

Accessing the OEM menu.

Once the code is entered, simultaneous presses on the INTERVAL-button and the 

NONSTOP-button to enter the OEM-menu. The display shows “OEM-Menu Press enter!”. 

On confirming this by pressing the enter-button, the first menu point is called to be worked 

on. To simplify making changes, a press on the UV-button allows the position that is to be 

changed in a number to be selected, so that the arrow buttons can be used to replace it with 

any digit from 0 – 9.

A press on the menu-button takes you to the next menu prompt.

The display shows:

Set the limiting value for temperature

The maximum operating temperature limit for the system is set here. Should this temperature 

be exceeded, the fault message “Max. temperature” is triggered. This is shown in the 3rd line 

of the display.

Basic setting: 35 °C

Setting range: 1 - 50 °C

After enter the OEM menu press the menu-button once then the display shows:

You need the right code to do this transaction. You can find the code under section 

“Code lock” on page 51.
12 System control

Thermo Scientific MicroPure 53

Set the rinsing time

In this Menu point you can set the manually rinsing time.

Basic setting: 30 sec.

Setting range: 10 - 60 sec.

After entering the OEM menu press the menu-button twice then the display shows:

Change the disinfection time

The disinfection time can be set in this menu.

Basic setting: 30 min.

Setting range: 15- 90 min.

After entering the OEM menu press the menu-button 3 times then the display shows:

Set the interval pump time

The interval pump time is the amount of time the pump is working to recirculate water in the 

system. The standard setting is 5 minutes of pump recirculation for every 30 minutes that the 

system stands still during Interval mode. The majority of systems do not need this setting to 

be changed.

Basic setting: 5 min.

Setting range: 1- 30 min.

After entering the OEM menu press the menu-button 4 times then the display shows:
12 System control

54 MicroPure Thermo Scientific

Set the interval rinse time

In this point you can set the rinse interval time. When the system operates in the Interval 

mode the system is going to be rinsing the hoses for 0.5 sec every 30 min.

Basic setting: 0.5 sec.

Setting range: 0.1- 2 sec.

After entering the OEM menu press the menu-button 5 times then the display shows:

Set the real-time clock

The real time clock can be set in this menu.

Basic setting: The actual date

Setting range: 1-12 Month, 1-31 Day, 0-24 h, 0-60 min.

After entering the OEM menu press the menu-button 6 times then the display shows:

Set the sending interval

Not possible for the MicroPure systems
12 System control

Thermo Scientific MicroPure 55

Language selection

Basic setting: English

Setting range: German, English, French

After entering the OEM menu press the menu-button 8 times then the display shows:

Switch units, conductivity/resistance

Basic setting: Resistance M:·cm 

Setting range: Resistance M:·cm, Conductivity μS/cm

After entering the OEM menu press the menu-button 9 times then the display shows:

Switch temperature compensation on/off

Basic setting: On 

Setting range: On, Off

After entering the OEM menu press the menu-button 10 times then the display shows:

Printer output

Not possible for the MicroPure systems because the system does not have a RS232 

Printer connector on the systems panel.
12 System control

56 MicroPure Thermo Scientific
13 Maintenance

Thermo Scientific MicroPure 57

Maintenance

Contents

• “Maintenance intervals” on page 58

• “Replacing the ultrapure cartridge” on page 59

• “Disinfection of MicroPure system” on page 61

• “Disinfection of MicroPure with tank system” on page 64

• “Replacing the ultrafilter” on page 65

• “UV-reactor assembly” on page 68

• “Replacing the UV-lamp” on page 69

• “Replacing the final end filter (0.2μm)” on page 72

• “Autoclaving the final end filter” on page 72
13 Maintenance

58 MicroPure Thermo Scientific

Regular servicing of the unit ensures that the quality of the treated water will remain constant. 

To ensure that your unit is serviced properly we recommend that you obtain a maintenance 

contract with a service company authorized by the manufacturer. You can then be certain that 

your unit will have a high degree of operational reliability and dependability.

To ensure that your unit functions without any errors it must be checked, maintained and 

serviced at regular intervals as described in these operating instructions. The operating 

instructions must therefore be kept in an easily accessible location for anyone who is using or 

servicing the unit and its contents followed.

Calibration of the conductivity may only be performed by a service technician authorized by 

the manufacturer.Cleaning and disinfection of the unit should be performed annually. 

Disinfection must also be performed in the event of a high bacteria content or impurities in 

the product water and when changing the ultrapure cartridge.

Maintenance intervals

Consumables must be replaced in accordance with the following table. The intervals have 

been established for the user and depend on the actual, exact water quality and the volume of 

water that is used daily.

Please note that the lifetime of the consumables is a direct function of the quality of the 

feedwater and the daily volume of water that is used.

Checks or maintenance work on electrical equipment are only to be carried out by 

qualified electricians. 

Unplug the system from the power outlet for all Maintenance work on the system.

Material Flow chart no. Item No.. Interval Other problems

Ultrapure 

cartridge

F1 09.1006 up to 12 

months

Or when the pure water limit value is 

exceeded, whichever occurs first. Bacteria 

growth may occur in the resin when the 

unit has been in use over an extended 

period.

Sterile filter 0.2 

μm

F2 09.1003 up to 12 

months

Or the flow rate is markedly slower

Ultrafiltration 

membrane (UF)

F3 50133981 up to 24 

months

Or if there is endotoxin breakthrough in 

product water or when the water flow rate 

is markedly slower. 

UV lamp UV1 09.2002 up to 24 

months

Or the unit indicates that the UV lamp 

must be replaced.
13 Maintenance

Thermo Scientific MicroPure 59

Replacing the ultrapure cartridge

Replace the ultrapure cartridge when the “Lim. val.pure w.“ message is

displayed indicating the purity dropped below acceptable levels or when the “change 

cartridge” message is shown in the display. 

Step Action Figure

1 Switch the system off.

2 Remove the cover in front of the ultrapure cartridge and 

press the snapper and pull the cover towards the front to 

remove it.

3 Press on the two quick connectors at the inlet and outlet of 

the ultrapure cartridge and remove the used cartridge.

4 We recommend performing a disinfection when an existing 

ultrapure cartridge is replaced.

Refer to section “Disinfection of MicroPure 

system” on page 61 for an explanation of 

how to perform disinfection.

5 Locate the new ultrapure cartridge.

Snapper

Cover

Ultrapure cartridge

Quick 

connectors
13 Maintenance

60 MicroPure Thermo Scientific

6 Place the ultrapure cartridge in the rear section of the unit 

insert the two quick connectors into the ultrapure 

cartridge. When you hear an audible click you can be sure 

that the quick-action coupling have been inserted correctly.. 

The quick connectors are attached to the unit in such a 

manner so as to prevent any confusion (switching). 

7 Put the cover for the ultrapure cartridge back in place and 

switch the unit on.

8

For this action you must have a Level 1 code. Refer to 

section “Entering a code number” on page 51 to read where 

to find this code and how to enter it.

a. Keep pressing the “Menu“ button until you see 

“Ser. No.: Cartridge“ in the display.

b. Enter the new serial number. Use the “NONSTOP 

and INTERVAL“ button to change the numeric 

values and the “UV“ button to move to the next 

value. 

c. After you have entered the serial number, confirm 

your entry by pressing “Enter“. The new serial 

number for the ultrapure cartridge is then stored. 

You can only use a ultrapure cartridge serial 

number one time.

9

Discard the first 5 liters.

Step Action Figure

ultrapure 

cartridge

a.)

b.)

c.)
13 Maintenance

Thermo Scientific MicroPure 61

Disinfection of MicroPure system

Required for disinfection is a disinfection cartridge (item no: 09.1102) purchase separately.

Use the following disinfecting agents for disinfection:

Cleaning Solution, 1 syringe, item no.: CMX 25 

• The MicroPure system can only be disinfected as a 'stand-alone' process.

• If the system was not in operation for an extended time, a disinfection must be 

performed prior to continuing with routine laboratory work.

• Disinfection should be performed at regular intervals, such as when the ultrapure 

cartridge is exhausted and must be changed, or when there is bacteria 

contamination in the pure water.

• Depending on the model of your unit (with or without tank), a complete 

disinfection will take 1 to 2 hours.

• To ensure effective disinfection of your system the internal 5L tank (only 

MicroPure with tank) must be filled completely with water.

• There is no need to worry should you notice a chlorine smell during the entire 

disinfection process, as there is no risk of the limit for chlorine gas in closed 

rooms being exceeded.

Always wear protective gloves when handling cleaning solution.

Always wear safety goggles when handling cleaning solution.

If your skin should come into contact with a chlorine product, rinse it immediately 

with ample, fresh water. If your eyes come into contact with the disinfecting agent, 

rinse them immediately with ample, fresh water and contact immediately a physician. 

Observe the information provided on the data sheet supplied with the CLEANING 

solution to avoid any health hazards.
13 Maintenance

62 MicroPure Thermo Scientific

Step Action Figure

1 a. Switch the system off.

b. Remove the ultrapure cartridge. (see “Replacing the 

ultrapure cartridge” on page 59)

2 Place the disinfection cartridge onto the place of the 

ultrapure cartridge and plug in the quick connectors from 

the ultrapure cartridge connection. When you hear an 

audible click you can be sure that the quick-action coupling 

fasteners have been inserted correctly. 

The quick connectors are attached to the unit in such a 

manner so as to prevent installing the ultrapure cartridge 

incorrectly. 

3

Always wear protective gloves and goggles when handling 

cleaning solution.

a. Open the Lid of the disinfection cartridge and fill 

the disinfection cartridge with water and pour the 

contents of one syringe of cleaning solution into it.

b. Switch on the system, open the sampling tap, 

extract 1L of water and then close the sampling tap.

There is no need to worry should you notice a chlorine 

smell during the entire disinfection process, as there is no 

risk of exceeding the limit for chlorine gas in closed rooms.

Quick connectors

Disinfection

cartridge

a.)

b.)

Lid

Disinfection 

cartridge

Sampling 

tap
13 Maintenance

Thermo Scientific MicroPure 63

4 Keep pressing the “Menu“ button until “Code“ appears in 

the display and then press “Enter“.

For this action you must have a Level 1 code. Refer to 

section “Entering a code number” on page 51 for the code 

to be used for this and how to enter the code.

a. In the user menu, press the “Menu“ button to 

scroll to “Disinfection“. Press “Enter“.

b. The display shows “Disinfection cartridge“. Press 

“Enter“ to confirm that Disinfection cartridge has 

been installed.

c. The disinfection process is then started.

Disinfection is completed after 30 minutes. The remaining 

time is displayed.

5 a. Once the disinfection is completed switch the 

system off and replace the disinfection cartridge 

with a new ultrapure cartridge. (see“Replacing the 

ultrapure cartridge” on page 59)

Empty the rest content of water from the disinfection 

cartridge into the drain after use.

b. Switch the system on again and open the sampling 

tap on the system and let water run out for approx 

15 minutes through the final filter.

c. Close the sampling tap after 15 minutes. Then the 

system is ready for new use.

Step Action Figure

a.)

b.)

c.)

Sampling 

tap

b.)

Final filter
13 Maintenance

64 MicroPure Thermo Scientific

Disinfection of MicroPure with tank system

Step Action Figure

1 Switch the system off.

2

Always wear protective gloves and goggles when handling 

cleaning solution.

a. Open the Lid of the internal 5 L tank and fill the 

tank with water and pour the contents of one 

syringe of cleaning solution into it.

b. Switch on the unit, open the sampling tap, 

dispense 1L of water and then close the sampling 

tap.

There is no need to worry should you notice a chlorine 

smell during the entire disinfection process, as there is no 

risk of exceeding the limit for chlorine gas in closed rooms.

Keep pressing the “Menu“ button until “Code“ appears in 

the display and then press “Enter“.

For this action you must have a Level 1 code. Refer to 

section “Entering a code number” on page 51 for the code 

to be used for this and how to enter the code.

a. In the user menu, press the “Menu“ button to 

scroll to “Disinfection“. Press “Enter“.

b. The display shows “Disinfection cartridge“. Press 

“Enter“ to confirm that Disinfection cartridge or 

Disinfection adapter has been installed.

c. The disinfection process is then started.

Disinfection is completed after 30 minutes. The remaining 

time is displayed.

Lid

Internal 5L 

tank

Sampling 

tap

Final filter

a.)

b.)

a.)

b.)

c.)
13 Maintenance

Thermo Scientific MicroPure 65

Replacing the ultrafilter

4 Once the disinfection is completed switch the system off 

and replace the old ultrapure cartridge with a new one. 

(see“Replacing the ultrapure cartridge” on page 59)

5 a. Switch the system on again and open the sampling 

tap and drain 2 tank fillings through the final filter

b. Close the sampling tap after draining the 2 tank 

contents. The system is now ready for new use.

Step Action Figure

Sampling 

tap

a.)

Final filter

You will need the following tools for replacing the ultra-filter:

Open-end wrench, size 17, Phillips screwdriver and Teflon strip.

Step Action Figure

1 Switch the system off and unplug from power supply.
13 Maintenance

66 MicroPure Thermo Scientific

Step Action Figure

2 a. Remove the cover from the unit.

b. Take out the ultrapure cartridge. (see “Replacing 

the ultrapure cartridge” on page 59

c. Use the Phillips screwdriver to unscrew the screws 

from the bracket for the UV lamp and pull the 

UV assembly out toward the front.

d. Unscrew the threaded connection screws by hand 

on the d8mm/ 0.31inch fittings of the ultra-filter 

and pull the tubes out.

Ensure that the white O-rings on the d8 mm/ 0.31 inch 

tubes are not lost in the process. You will need these again 

for re-attaching the tubes.

e. Pull the ultra-filter out of the mounting bracket.

f. Hold the tube still attached to it with one hand 

while rotating the ultra-filter in a 

counter-clockwise direction with the other hand 

until the Luerlock is loosened and you can pull 

the ultra-filter out of the unit.

g. Mark the position of the fittings before you 

remove them. Use the open-end wrench size 

17mm/ 0.67 inch to unscrew the top and bottom 

fittings on the ultra-filter.

c.)

d.)

e.)

f.)

g.)

UV 

lamp

Mounting 

plate

Screws

Threaded

connection

O-ring

Ultra-filter

Ultra-filter

Mounting 

bracket

UV lamp

Luerlock

Ultra-filter

Fitting

Ultrafilter

Open-end 

wrench
13 Maintenance

Thermo Scientific MicroPure 67

3

When you install a new ultra-filter ensure that the arrow 

on the filter corresponds to the direction of flow through 

the filter (it must point upward).

a. Take the new ultra-filter and wrap the top and 

bottom threads with Teflon strip (roughly 3 times 

with Teflon strip around).

b. Take the fittings that you unscrewed in step 2 g 

and screw them into the same position that they 

were in the old ultra-filter. Use the 17mm/0.67 

inch open-end wrench for this.

c. After this, rotate the Luerlock into the ultra-filter 

in the reverse order that you removed it (see Step 

2f).

d. Insert the tubes into the top and bottom 

connection for the ultra-filter and screw the 

fittings securely into place.

e. Insert the ultra-filter back into the mounting 

bracket.

f. Screw the UV assembly back into place (see Step 

2c)

4 Place back the ultrapure cartridge, replace the cover on 

the unit and switch the system on. Dispense 5 L of water 

and activate three rinses for the UF. (see “Rinsing 

Procedure” on page 47)

Step Action Figure

a.)

Ultrafilter

Teflon strip

d.)

threaded 

connection

O-ring Ultrafilter

f.)

Ultrafilter

Mounting 

bracket

UV lamp
13 Maintenance

68 MicroPure Thermo Scientific

UV-reactor assembly

Union nut

Seal ring

Item No.: 21.5048

O-ring

Item No.: 21.5030

Immersion tube

UV lamp casing

Item No.: 22.0092

UV lamp

Item No.: 09.1002

Immersion tube

Item No.: 22.0040

Stopper 

Item No.: 14.0187

Stopper

Item No.: 21.5008

These stoppers are 

located in the UV lamp 

casing

UV lamp
13 Maintenance

Thermo Scientific MicroPure 69

Replacing the UV-lamp

Never look directly into a UV lamp when it is on. It could damage your sight.

Always wear safety gloves when changing the UV-lamp, in order to prevent that your 

skin comes in contact with the UV-lamp glass.

Immediately use a breathing protector, filter category FFP3, when you note that the 

glass of the UV-lamp is broken and ventilate the room well.

The Hg content in the UV-lamp is so low so that no damage to the 

environment can arise.

Contact your local service organization for proper disposal of the broken or used 

UV-lamp.

Step Action Figure

1 Switch the MicroPure system off.

2 Remove the cover for the ultrapure cartridge.

3 a. Take the ultrapure cartridge out of the unit. (see 

“Replacing the ultrapure cartridge” on page 59)

b. Use the Phillips screwdriver to unscrew the two screws 

from the bracket for the UV assembly.

4

To more easily remove the UV lamp in the next step, pull the 

UV lamp out by about 1cm while still plugged in.

5 a. Carefully unplug the plug for the UV lamp.

b. Now, carefully pull the UV lamp up while turning it 

slightly in a clockwise direction at the same time.

UV 

lamp

Mounting 

plate

Screws

b.)

UV-lamp

UV- lamp 

casing
13 Maintenance

70 MicroPure Thermo Scientific

6

When you are removing the UV lamp you must ensure that the 

glass of the UV lamp is not soiled or that you do not touch it 

with your fingers. This could impair proper functioning of the 

lamp. We therefore recommend that you wear clean, disposable 

gloves when performing this work.

When installing a new UV lamp ensure that the flat seal ring 

and the O-ring are at the correct position. The flat seal ring 

must fit exactly in the groove provided for it on the top of the 

union nut (figure 1 and 2). The O-ring fits in the bottom 

groove in the union nut (figure 1). If these items do not fit 

exactly in the grooves and you restart the unit, the UV assembly 

will not be leak-tight at these locations.

a. Now, carefully rotate a new UV lamp into place by 

turning it in a counter-clockwise direction into the UV 

assembly (figure 3).

b. You can then reattach the plug to the UV lamp and 

retighten the UV assembly on the mounting plate 

using the two retaining brackets and the two screws 

that you removed previously.

a)

Step Action Figure

Groove

Seal ring

Union nut

O-ring

Seal ring

Union 

nut

UV 

lamp

UV 

lamp

UV lamp 

casing

UV lamp 

casing

1.

2.

a)
13 Maintenance

Thermo Scientific MicroPure 71

7 Insert the ultrapure cartridge back into the unit (see “Replacing 

the ultrapure cartridge” on page 59).

8 Switch the system on.

9

For this action you must have a Level 3 code. Refer to section 

“Entering a code number” on page 51 to read where to find this 

code and how to enter it.

c. After entering the code push the “Menu and UV“ 

button simultaneously. The display shows “UV 

Menu“.

d. Push the “Menu“ button repeatedly until new 

UV-lamp appears and press enter to confirm. The 

Display shows then “Please wait“.

The system resets the operating hours counter of the UV-lamp. 

Step Action Figure

a.)

b.)
13 Maintenance

72 MicroPure Thermo Scientific

Replacing the final end filter (0.2m)

Autoclaving the final end filter

Step Action Figure

1 Rotate the exhausted or clogged sterile filter in a 

clockwise position to remove it.

2 Unpack the new sterile filter and screw it into the 

bottom 1/4“ thread on the sampling tap.

1/4“ thread

Sterile filter

The lifetime of the sterile filter can be prolonged by sterilizing it. Proceed as follows 

to autoclave the sterile filter.

Step Action Figure

1 Rotate the used sterile filter in a clockwise 

direction to remove it.

2 Use an autoclave to sterilize the sterile filter in a 

steam autoclave at 121C° for 30 minutes. You can 

repeat the sterilization process for the sterile filter 

up to 5 times. 

When sterilization is completed, screw the sterile 

filter back into the 1/4“ thread on the sampling 

tap (see “Replacing the final end filter (0.2μm)” 

on page 72).

If you wish to remove purified water and the flow rate is 

too low, this is an indication that the sterile filter is 

clogged. In this case, read the description in section 

“Trouble shooting” on page 75, or replace the sterile 

filter with a new one. 

1/4“ thread

Sterile filter
14 Waste disposal

Thermo Scientific MicroPure 73

Waste disposal

When the packaging is no longer needed it can be disposed of as household waste.

Systems are in conformity with EEC Guideline 2011/65/EC.

The system is not to be thrown away as household waste but must be properly disposed of. It 

can be returned to the manufacturer for safe disposal according to EEC Guideline 

2011/65/EC. We therefore request our customers in Germany and other member States in 

the European Economic Area to contact our local service center or our headquarters.

weee.recycle@thermofisher.com

WEEE-Reg.-no.: DE 12471402

In countries outside of the European Economic Area, please contact your local authorities or 

waste disposal company.

Before returning your Thermo Scientific Barnstead Ultrapure water system for waste 

disposal, contact your local service organization or waste disposal company for proper 

disposal of the system and its components. Only specially trained personal can take 

the system out of operation and dispose it properly.

If you have a used or broken UV-lamp, contact your local Thermo Scientific service 

organization or waste disposal company.
14 Waste disposal

74 MicroPure Thermo Scientific
15 Trouble shooting

Thermo Scientific MicroPure 75

Trouble shooting

Contact the service department if you cannot rectify this error.

Error Cause Remedy

The system does not start • No supply of power • Provide power

Dispensing not possible • Feedwater supply line closed 

or tank is empty

• Feedwater and rinse water 

connections are mixed up

• Feedwater pressure < 1 bar

• Sterile filter blocked

• Open the feedwater supply line 

or add water to tank

• Replace connections

• Increase feedwater pressure

• Replace the sterile filter (see 

“Replacing the final end filter 

(0.2μm)” on page 72

Resistance < 18.0 M:·cm • Cartridge is exhausted

• Temperature compensation 

deactivated, recalibration 

required

• Check feedwater quality

• Activating temperature compensation ('TC' should appear 

in the display) Contact the service organization for calibration

Control panel non responsive • Microprocessor locked up

• PCB error

• Unplug the mains plug for 5 

seconds. 

• Contact the Thermo Fisher 

Scientific service department

Water leak • Leaky tubing connection

• Feedwater pressure > 6 bar 

(external tank filling station 

only)

• Check and seal the tubing connection

• Install a pressure reducer

• Contact the Thermo Fisher 

Scientific service department

Dispensed water flow rate is too 

low

• UF-Module blocked

• Internal pressure too low

• 0.2 micron final filter is 

blocked

• Air trapped in unit

• Replace UF-module (see“Replacing the ultrafilter” on page 65)

• Readjust pressure reducer

• Replace the 0.2 micron final 

filter

• Dispense water at POU or 

rinse to purge air from the system.
15 Trouble shooting

76 MicroPure Thermo Scientific

Wrong time or date • Time zone

• Summer/winter time

• Reset time and date

Wrong language • Wrong language set • Correct language setting

Error message:

'“Limit value feed“

• Feedwater conductivity too 

high

• Limiting value set too low

• Check the feedwater measuring cell and deactivate in the 

menu

• Check and reset the limiting 

value

Display indicates +IN • Measuring cell cable break • Replace measuring cell

Error message:

“Pur.limit“

• Ultrapure cartridge 

exhausted

• Limiting value set too low

• Replace ultrapure cartridge (see 

“Replacing the ultrapure cartridge” on page 59

• Check and reset the limiting 

value

Error message:

'“UV duration“

• UV lamp operating time has 

been exceeded

• Replace the UV lamp (see 

“Replacing the UV-lamp” on 

page 69)

• Reset the operating time 

counter

Error message:

“max.Temperature“

• The temperature in the system is too high

• Interval pump time too long

• Limiting value set too low

• Feedwater temperature too 

high

• Switch the unit off and let it 

cool down

• Reduce interval pump time

• Check and suit the limiting 

value

• Reduce feedwater temperature

Error message:

'“Measuring cell LF1“

• Measuring cell cable break

• System control defect

• Conductivity of ultra pure 

water outside measuring 

range

• Replace measuring cell

• Replace system control

• see “Ultrapure water limiting 

value” on page 46

Error message:

“Measuring cell LF2“

• Measuring cell cable break

• System control defect

• Feedwater conductivity outside measuring range

• Replace measuring cell

• Replace system control

• see “Feedwater limiting value” 

on page 45

Error message:

“Measuring cell LF3“

• Measuring cell cable break

• System control defect

• Replace measuring cell

• Replace system control

Error Cause Remedy
15 Trouble shooting

Thermo Scientific MicroPure 77

Error message:

“Measuring cell Temp.“

• Measuring cell cable break

• System control defect

• Replace measuring cell

• Replace system control

Error message:

“change cartridge“

• ultrapure cartridge operating 

time has expired

• Replace with new ultrapure 

cartridge

Error Cause Remedy
15 Trouble shooting

78 MicroPure Thermo Scientific
16 Replacement parts

Thermo Scientific MicroPure 79

Replacement parts

Contents

• “Replacement parts MicroPure” on page 80

• “Replacement parts MicroPure with tank” on page 82
16 Replacement parts

80 MicroPure Thermo Scientific

Replacement parts MicroPure

13

2

1

5

12

5

4

11

9

8

14

6

7

3

10
16 Replacement parts

Thermo Scientific MicroPure 81

Pos. Designation Article number

1 Ultrapure cartridge 09.1006

2 Final end filter (sterile filter 0.2μm) 09.1003

3 Ultrafilter 50133981

4 Pressure booster pump 50149264

5 Replacement UV-lamp

UV-booster

09.1002

50143195

6 Feedwater measuring cell 16.0126

7 Ultrapure water measuring cell with temperature sensor 50133992

8 Pressure reducer 50133985

9 Check valve 50150598

10 Dispensing valve 50133988

11 Rinsing solenoid valve 50131190

12 Control interface 50131346

13 Control CPU with LCD display 26.0025

14 Fuse holder for glass tube fuse 

Glass tube fuse, 5x20 mm, 3.15A, slow

50143154

50150714

15 Table top power pack 24V DC (not shown) 50149597
16 Replacement parts

82 MicroPure Thermo Scientific

Replacement parts MicroPure with tank

1 A

2

8

4

6

9

14 13

5

7

7

15

11

10

3

12

6
16 Replacement parts

Thermo Scientific MicroPure 83

Pos. Designation Article number

1 Ultrapure cartridge 09.1006

2 Final end filter (sterile filter 0.2μm) 09.1003

3 Ultrafilter 50133981

4 Sterile vent filter 22.0089

5 Pressure booster pump 50149264

6 Replacement UV-lamp

UV-booster

09.1002

50143195

7 Feedwater measuring cell 16.0126

8 Ultrapure water measuring cell with temperature sensor 50133992

9 Dispensing valve 50133988

10 Rinsing solenoid valve 50131190

11 Check valve 50150598

12 Sterile tank overflow 50148548

13 Control interface 50131346

14 Control CPU with LCD display 26.0025

15 Fuse holder for glass tube fuse 

Glass tube fuse, 5x20 mm, 3.15A, slow

50143154

50150714

16 Table top power pack 24V DC (not shown) 50149597
16 Replacement parts

84 MicroPure Thermo Scientific
17 Consumables

Thermo Scientific MicroPure 85

Consumables

Accessories

Designation Item No.

Ultrapure cartridge 09.1006

UV lamp 09.1002

Ultrafiltration module 50133981

Sterile filter 0.2 μm 09.1003

Sterile vent filter (only MicroPure with tank) 22.0091

Designation Item No.

Wall-mounting bracket 09.2212

Disinfection cartridge (only for MicroPure) 09.1102

Cleaning Solution, 1 syringe CMX25
17 Consumables

86 MicroPure Thermo Scientific
18 Terminal assignment

Thermo Scientific MicroPure 87

Terminal assignment
18 Terminal assignment

88 MicroPure Thermo Scientific
19 Maintenance record

Thermo Scientific MicroPure 89

Maintenance record

The following points must be observed in order to ensure the quality of the system.

1x / Weekly, enter measured values.

Customer address: Location:

System type:

Serial no.:

Year made:

Date Feedwater resistance

[Mxcm] 

Ultrapure water 

resistance

[Mxcm] 

Temperature

[°C] 

UV-lamp 

operating time

[h] 

Ultra pure 

water volume 

flow

[l/h]

Last change 

of ultrapure 

cartridge

Last 

cleaning / 

disinfection

Notes Signature
19 Maintenance record

90 MicroPure Thermo Scientific
20 Contact information Thermo Fisher Scientific

Thermo Scientific MicroPure 91

Contact information Thermo Fisher Scientific

Contact address for service:

Overview of Thermo Scientific international sales organization

Postal address in USA:

Thermo Scientific

275 Aiken Road

Asheville, NC 28804

USA

Inquiries from USA/Canada

Sales: +1 866 984 3766

Service: +1 800 438 4851

Enquiries from Latin America

Sales: +1 866 984 3766

Service: +1 866 984 3766

Enquiries from Asia:

China

Sales: +86 10 8419 3588

Service: toll-free 1-8008105118

Support Mobile 4006505118 or +86 10 8419 3588

India

Sales: +91 22 6716 2200

Service: toll-free 1-800 22 8374 or +91 22 6716 2200

Japan

Sales: +81 45 453 9220

Service: +81 45 453 9224

Inquiries from other countries Asia/ Australia/ New Zealand

Sales: +852 2885 4613

Service: +65 6872 9720

Inquiries from countries not listed here/ other EMEA countries

Sales: +49 6184 90 6940 or +33 2 2803 2000

Service: +49 6184 90 6940

Enquiries from Europe:

Austria

Sales: +43 1 801 40 0

Service : +43 1 801 40 0

Belgium

Sales: +32 53 73 4241

Service: +32 53 73 4241

Finland/Nordic/Baltic Countries

Sales: +358 9 329 100

Service: +358 9 329 100
20 Contact information Thermo Fisher Scientific

92 MicroPure Thermo Scientific

France

Sales: +33 2 2803 2180

Service : +33 825 800 119

Germany

Postal Address Germany:

Thermo Electron LED GmbH

Robert-Bosch-Straße 1

D - 63505 Langenselbold

Phone 

Sales: toll-free 0800 1 536 376

or +49 6184 90 6940

Service: toll-free 0800 1 112110

or +49 6184 90 6940

E-mail: info.labequipment.de@thermofisher.com

Italy

Sales: +39 02 95059 341

Service: +39 02 95059 250

Netherlands

Sales: +31 76 579 5555

Service: +31 76 579 5639

Russia/CIS

Sales: +7 812 703 4215

Service: +7 812 703 4215

Spain / Portugal

Sales: +34 93 223 0918

Service: +34 93 223 0918

Switzerland

Sales: +41 44 454 1212

Service: +41 44 454 1212

UK/Ireland

Sales: +44 870 609 9203

Service: +44 870 609 9203

© 2015 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of 

Thermo Fisher Scientific Inc. and its subsidiaries. Specifications, terms and pricing are subject 

to change. Not all products are available in all countries. Please consult your local sales 

representative for details. 
Thermo Scientific MicroPure 93

I

Index

A

Accessibility to MicroPure system 16

Accessories 85

Airborne sound emission 16

Ambient conditions 16

Autoclave

Final filter 72

Autoclaving the final end filter 72

Available MicroPure systems 9

Available MicroPure with tank systems 9

C

Change the disinfection time 53

Code lock 51

Complaints 2

Connections of the MicroPure system 20

Consumables 85

Contact information Thermo Fisher Scientific 91

Control menu flow diagram 39

D

Description of control display 38

Dimensions and weight MicroPure with tank 13

Dimensions and weight of MicroPure 15

Disinfection of MicroPure system 61

Disinfection of MicroPure with tank system 64

Disinfection Procedure 49

Dispensing water from Dispensing valve 35

E

Electrical connections 15

Entering a code number 51

Error history 50

Examination on receipt 2

Explanatory notes on the operating instructions iii

Extend of delivery 7

Extend of delivery MicroPure with tank 8

Extent of delivery MicroPure 8

F

Feedwater limiting value 45

Feedwater requirements 13

Final

Autoclave 72

Flow chart 29

G

General information 42

H

How the MicroPure system functions 31

I

Illustration of drain 25

Initial start up 33

Installation 19

Intended Use 11

Interval operating mode after switching on 42

Interval operation 43

L

Language selection 55

Legal Information i

M

Maintenance 57

Maintenance record 89

Materials of parts which contact water 15

Mounting the power pack (voltage supply) 27

N

Non-stop mode 43
94 MicroPure Thermo Scientific

Index: O

O

OEM Menu 52

OFF mode 44

Operating Elements 37

Operating modes 42

P

Packaging for return shipment 2

Preface i

Print out of Data 50

Printer output 55

Product water quality ASTM Type I 13

Putting system into operation 34

R

Replacement parts 79

Replacement parts MicroPure 80

Replacement parts MicroPure with tank 82

Replacing the final end filter (0.2μm) 72

Replacing the ultrafilter 65

Replacing the ultrapure cartridge 59

Replacing the UV-lamp 69

Rinsing Procedure 47

S

Safety precautions 3

Set the interval pump time 53

Set the interval rinse time 54

Set the limiting value for temperature 52

Set the real-time clock 54

Set the rinsing time 53

Set the sending interval 54

Standards and directives iv

Start your MicroPure system into operation 22

Switch temperature compensation on/off 55

Switch units, conductivity/resistance 55

System control 41

T

Technical Specification 13

Terminal assignment 87

The Installation area 17

Transport and packaging 1

Trouble shooting 75

U

Ultrapure cartridge operating hours counter 47

Ultrapure water limiting value 46

Unintended use 11

User menu 45

UV-Lamp 44

UV-Lamp operating time and intensity 47

UV-reactor assembly 68

V

Venting the sterile filter 35

W

Wall Mounting 26

Warranty i

Waste disposal 73

Water connections 15
Thermo Scientific MicroPure 95

I

Index
96 MicroPure Thermo Scientific

Index: 



© 2016 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries. Specifications, terms 

and pricing are subject to change. Not all products are available in all countries. Please consult your local sales representative for details. 

thermoscientific.com

Thermo Fisher Scientific

1214 Oakmead Parkway

Building 10

Sunnyvale, CA 94085

BRXXXXX_E 01/14W