Dr.Thiedig Digox 6 - User Manual

Questions and Answers

T
Tonya RamirezAug 2, 2025
How to fix flashing flow and warning triangle on Dr.Thiedig Analytical Instruments?
- C
  Christopher BauerAug 2, 2025
  If the flow is flashing and a warning triangle appears, it may be due to an incorrect Kf factor or a dirty/faulty flowmeter. Set the flow to about 10l/h using the regulating valve and check the value on the display. Try re-calibrating or cleaning the flowmeter by rinsing the analyzer block, or opening and cleaning the flowmeter. If the throughput displayed is lower than expected, the flowmeter is dirty or faulty. If the issue persists, contact our maintenance hotline.
J
Judy BarrettAug 6, 2025
What to do if I see an EEPROM-Error message on Dr.Thiedig Analytical Instruments?
- C
  cathy20Aug 6, 2025
  An "EEPROM-Error" message may appear due to simultaneous operation of the continuous logger in the Digox 6 and the online mode in DigoxWin. Try pressing or switching the unit off and on again. If the issue persists, contact our maintenance hotline, as the hardware is not designed for simultaneous operation. The error can also be caused by an EEPROM-Error at the processor board.
C
Colleen RodriguezAug 10, 2025
Why is the temperature flashing on my Dr.Thiedig Analytical Instruments display?
- A
  Angela EllisAug 10, 2025
  A flashing temperature display indicates that the feed line to the temperature sensor has been interrupted, or the temperature sensor is faulty. Check the proper seating of the sensor connector. If the problem continues, replace the temperature sensor.
C
chasewilsonAug 14, 2025
How to resolve calibration errors A and B on Dr.Thiedig Analytical Instruments?
- A
  April BishopAug 14, 2025
  For calibration error A, set the correct flow to 10.0 l/h (tolerance: ± 0.5 l/h is permissible). For calibration error B, reduce the oxygen concentration in the sample to below 0.500 mg/l and start the calibration again.
C
Christopher WallAug 19, 2025
What causes calibration errors C, D, and E on Dr.Thiedig Analytical Instruments?
- M
  millercalebAug 19, 2025
  Calibration error C (ZERO VALUE INSTABLE) indicates that the current measured between sec.15 and sec.20 deviates more than 5% with regard to the current measured between sec.0 and sec.5. Wait until the displayed measuring value is constant and start the calibration again. Calibration error D means that the temperature measured in sec.20 deviates more than 5% with regard to the temperature measured in sec.0. Wait until the sample temperature is stabilized and then start the calibration. Calibration error E indicates that the flow measured in sec.20 deviates more than 5% with regard to the flow measured in sec.0. Wait until the displayed flow is constant and then repeat the calibration.
D
desireecarterAug 23, 2025
What does it mean when I see a message after switching on my Dr.Thiedig Analytical Instruments unit?
- C
  Corey WallAug 23, 2025
  This message appears because the unit was switched off with a running continuous logger. Use the cursor keys to decide whether the data logger should continue.
J
Julie StewartAug 27, 2025
How to establish a connection between Digox 6 and DigoxWin for Dr.Thiedig Analytical Instruments?
- A
  annecrawfordAug 27, 2025
  Check the interface cable, ensure the correct interface is selected on both the PC and in DigoxWin, verify that the baud rates are the same for both Digox 6 and DigoxWin, and confirm that you are using the correct DigoxWin version for your Digox 6 firmware. Always use the supplied software version with the respective analyzer.

Summary

1 Introduction

1.1 Conventional use

Describes the reliable, precise, and quick measurement of oxygen content in various liquids.

1.2 Unit description

Details the components of the Digox 6 analyser, including its display, connections, and power features.

1.3 Measuring principle

Explains the potentiostatic 3-electrode system used for oxygen analysis.

1.4 Processing measuring data

Covers the use of the DigoxWin software for displaying, saving, and evaluating measurement data.

2 Menu overview

2.1 The Measuring screen

Details the default screen displayed after the unit is switched on, showing key parameters.

2.2 Calibration menu

Presents the different calibration modes available, such as active and reference calibration.

2.3 Main menu

Outlines the primary navigation structure, listing options like Sample, Datalogger, Status, and Measuring range.

2.4 Menu level 2

Explains access to advanced functions via a four-digit code for enhanced security.

3 Taking the unit into service

3.1 Filling the reference electrode with KCI solution

Provides instructions for preparing the reference electrode with KCI solution prior to operation.

3.3 Taking the unit into service

Covers the initial power-on procedure, system check, and readiness for measurement.

4 Calibration of the Digox 6

4.1 Introduction

Explains why and when electrode calibration is necessary to maintain accuracy over time.

4.2 Variables influencing calibration

Details factors like flow and temperature that affect calibration accuracy and measurement.

4.3 Calibrating of the flowmeter

Procedure for calibrating the flowmeter and determining the Kf factor.

4.4 Thiedig active calibration

Procedure for Thiedig active calibration to determine the Ks factor, ensuring electrode sensitivity.

4.5 Short calibration

Procedure for short calibration, suitable for limited time conditions and quick checks.

4.6 Reference calibration

Determines Ref min and Ref max points to establish the calibration function for accurate readings.

5 Measuring

5.1 Conditions of the sample and practical hints

Specifies sample parameters like conductivity, flow, pressure, and temperature for accurate measurements.

5.2 The Digox 6 data logger

Describes the continuous and measuring point data loggers for saving and retrieving measurement values.

5.3 How to operate DigoxWin

Overview of DigoxWin features for data display, saving, and evaluation on a PC.

5.3.2 Installing DigoxWin

Step-by-step guide for installing DigoxWin software on a Windows operating system.

5.3.4 Processing measuring data on the PC

Methods for processing and saving data on the PC, including online logging and Excel export.

6 Maintenance

6.1 Cleaning the electrodes

General hints and specific steps for cleaning the measuring and calibration electrodes.

6.2 Exchanging diaphragm and sealing rings

Recommends annual replacement of diaphragm and sealing rings for optimal performance.

6.2.2 Means required

Lists the necessary tools and materials for dismantling the analyser block for maintenance.

6.4 Hints regarding the handling of rechargeable battery

Provides guidelines for optimizing battery service life and proper handling of the rechargeable battery.

7 Fault messages and troubleshooting

Troubleshooting Flow and Temperature Issues

Addresses flashing flow/temperature indicators and potential causes like incorrect settings or faulty sensors.

Troubleshooting Communication and System Errors

Covers issues related to PC connection failures and internal EEPROM faults.

Troubleshooting Calibration Errors

Details specific calibration errors (A-E) and provides remedies for each.

8 Special functions

8.1 Status display

Shows device status including Ks/Kf factors, zero current, medium, and measuring range settings.

8.2 Selecting recorder measuring ranges and output currents

Guides on setting appropriate measuring ranges and output currents for recorder connections.

8.3 Menu level 2 functions

Explains access to advanced system settings via a four-digit code for enhanced security.

8.3.2 Setting the interface

Procedure for selecting the device interface and its associated transfer rate (baud rate).

8.3.5 Enabling options

Details on enabling extended data logger memory by entering a specific code.

9 Technical data Digox 6

10 Appendix

10.1 Definition of terms

Provides definitions for technical terms and concepts used throughout the manual.

10.2 Scope of supply with accessories kit

Lists the items included in the standard accessories kit provided with the analyser.

10.3 Spare parts

Details various spare parts, including analyser block components and related items.

10.4 Digox 6 EC unit extension and accessories

Lists service kits, adapters, and system accessories for extending unit functionality.

10.6 Terminal assignment

Details the pin assignments for various connectors and sockets on the device.

Dr.Thiedig Digox 6 Specifications

General

Brand	Dr.Thiedig
Model	Digox 6
Category	Analytical Instruments
Language	English