Data Acquisition System Upgrades
Data Acquisition System Upgrades


Some old testing machines have no electronic control unit that is suitable for current applications or some old testing machines have inadequate electronic control unit for current test applications.
Retrofitmach offers new electronic control panel (with all required electrical components) and a new software system to meet fulfill requirement of new system.
Our specialists integrate a new electric control panel that consists of electronic control unit to old testing machine and new test system works with a PC software to control the existing testing machine.
According to situation of existing system that is required to upgrade, servo motor addition, inverter addition, soft starter system integration, usage of new drivers could be stages of the existing test machine modernisation.
Electronic control system is chosen by test type to be applied such as dynamic tests, static tests, biaxial tests etc.

Retrofitmach uses Doli EDC Controllers (Made in Germany) and Doli Test & Motion softwares to upgrade the test machines.

  • EDC220 control systems: 1000 Hz system clock, generally used for static test systems.


  • EDC580 control systems: 5000 Hz system clock, generally used for static and dynamic test systems.


  • EDCi20 control systems : 2500 Hz System clock, generally used for static test systems.


  • EDCi70, EDCi50 control systems : 10000 Hz System clock, generally used for static and dynamic test systems.



The EDCi series were developed for controlling static as well as dynamic testing instruments. It is available with keyboard and diplay screen optionally. Eight general purpose I4-Bus-Extension-Slots are "on board".   

  • Interface and control processor Vortex 86DX CPU 800MHz
  • Control frequency 2.5 kHz or 10 kHz.
  • RS485-Interface for external keyboard/display, supports a maximum of four devices
  • Drive Interface ±10V (16Bit) analogoue command output, 
    digital command output and safety functions
  • PC-communication via USB or Ethernet
  • Eight I4-Bus-Extension-Slots
  • Internal female plug for serial sensors (COM 1)
  • Internal female plug for debug (COM 2)
  • Internal female plug for synchronising several EDCs
  • Internal female plug for servo valve amplifier, 160 and 320 Watt DC-drive amplifier



The Intelligent Solution for User Test Applications

A test software should be able to:

1. Display everything I want to

2. Evaluate everything I need to

3. Give everything out the way I like it

DOLI combined these tasks in the Test&Motion Software. Different informations are shown in different windows at the same time.

Test&Motion was developed in a modular design. It consists of the basic software containing a simple but adaptable tension/compression test and different modules for almost all kinds of testing applications. The special module Free Programming offers the possibility to design tests individually.

All sorts of signal sources can be displayed. Load, position and strain are standards, moreover, other transducers or calculated results can also be displayed.

Variables are shown as a curve in X- or Y-direction or listed digitally. Furtheron, users have the possibility to: change the names of the variables (e.g. load or F), zoom in on the graphic several times and store remarks within the graphic. If a bigger view of the curve is needed, the graphic window can be drawn up to screen size. Due to the organization in single window, user does have the possibility to move important values to a specific point where user can still see them. T&M is able to process several EDCs in a multiaxial manner. EDCs can be cascaded and - what is even more important - synchronized, resulting in an absolute identical signals for all channels. T&M can communicate with several EDCs at the same time.

  •  Possible X- and Y-axis quantities: load, stress, X-head travel, strain, technical strain, time (from test start), true strain, nominal strain, time and defined signal input Determination of five values on the X- or Y-axis, maximum, breach as X- and Y-value. Corresponding determination of values for compression tests.
  • Statistic functions: mean value, min/max value, range, median, standard deviation, practical limit of error, aso.
  • Display of all the data sent by the instrument: load, X-head travel, strain and defined signal input.





Software Capable for:

 Allows real time data/graph plotting,

 Allows real time control/change of variables,

 Displays in real time all relevant system parameters, such as oil temperature, pressure and level,

Capable of concurrently acquire and process data from at separate transducers,

Intuitive to use and to design new loading sequences,

Enables user to capture and extract all data in a raw format,

Allows up to more than 20 separate data acquisition channels,

 Supports sine, triangle, square, holds, ramps waveform types

Fast data transfer of logged information to a PC at a rate of up to at least 10 kHz on all channels (depends to EDC type),

Can calculate modul E (with software module addition),

Allows users to code custom calculations.


Test Regulation Creation for ISO 6892-1



Data Export

Users have several possibilities to export data. For example user may export: in an ASCII-File, in an EXCEL-File, via a serial interface or in an ECLIPSE-File. In case user wants to export user data please do as follows.



  • User can easily set procedure and speed of test and user can change them.



  • With “End of Test” choice, the users can easily choose how and when end the test. The options allows user to protect the machine. In addition, the option has automatic fracture recognition.




Display and procession of up to 10 channels simultaneously

Data transfer with 1, 2.5, 5, 10 kHz

Control of multiaxial systems

Oscilloscope function for dynamic applications

Display of covering curve

Limit assignment in a absolute and relative manner

Function generator for ramps, triangle and sinusoidal functions

Sweep between frequencies and amplitudes

Superimposition of different curve forms


Offset, Amplitude, Waveform, Cycle Adjustment






Generally, the RMC6 is the substitute for the preceding RMC5. It is a small handheld unit (cable 3m) directly connected to the EDC. The control keys F1, F2, F3, UP, DOWN, STOP as well as the ‘mode changer’ for the Digipoti and the Digipoti itself are on the front. It has a small display and control LEDs for the TEST- and the POWER-function.

The RMC6 has a magnetic foil on its back and therefore can be placed at an ergonomic position.

Dimensions: L 25 x W 65 x H 202 mm

Display: LCD-graphics display 128x64 dots

Connections: Cable 3m connects to RMC connector at the EDC

Keys: UP, DOWN and STOP (machine control and value input) function keys

Digipoti: Crosshead / cylinder positioning Scroll of display and positioning of data input




The RMC7 is a handheld unit (cable 3m) directly connected to the EDC. RMC7 has a magnetic foil on its back and therefore can be placed at an ergonomic position.
Dimensions: L 26 x W 120 x H 200 mm
Display: LCD-graphics display 128x64 dots
Keys: UP, DOWN and STOP (machine control) numerical and function keys (value input, programming) emergency stop
Digipoti: Crosshead / cylinder positioning Scroll of display and positioning of data input

  • RMC7 has options that open/close hydraulic and pneumatic grips.
  • It is avaible that start and stop test.
  • The LCD diplay is avaible to show two of actual value like force, displecament, extensometer situation, strain, stress, time, cycle etc.
  • RMC7 is capable to crosshead movement.
  • Digipoti button is used for precise movements micronized.



Test Benches

Retrofitmach Test Benches

Servo Valves

Retrofitmach supplies servo valves of the brands below from 5 liters to 2400 liters/min.

Environmental Chambers

Environmental chambers provide wide temperature range testing solutions for measuring material properties under high temperature and low temperature conditions.

Grips And Test Fixtures

Grip And Test Fixture

Composite Test Fixtures

Flexural Bend Test Fixtures

High Temperature Test Furnaces

Retrofitmach offers high temperature test furnaces for high temperature mechanical testing applications; ISO 6892-2, ASTM E139, ASTM D2990 etc.

Induction Systems for Test Machines

Induction Systems for Test Machines


Retrofitmach integrate the all type of extensometers to customer's existing machines.

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