Krautkramer DM4 DL User Manual

Krautkramer DM4E / DM4 / DM4 DL Issue 05, 01/01 0-3
Content
1 Introduction ...................................... 1 -1
1.1 DM4E, DM4 and DM4 DL ........................ 1 -2
1.2 Information about this manual .............. 1 -5
1.3 Layout and presentation
of this manual ......................................... 1 -6
1.4 Important remarks
about thickness testing ......................... 1 -7
Conditions for application of
ultrasonic thickness gauges ..................... 1 -7
Operator training ...................................... 1 -8
Limits of ultrasonic testing ........................ 1 -8
Ultrasonic thickness measurement........... 1 -9
Influence of the test material .................... 1 -9
1.5 Important notes on
thickness testing with the DM4 ........... 1 -11
Probe Zero Adjustment........................... 1 -11
Couplant rests ........................................ 1 -12
Measurement precision .......................... 1 -12
Probes.................................................... 1 -12
DM4 DL Data Logger ............................. 1 -13
2 Scope of supply and accessories... 2 -1
2.1 Scope of delivery .................................... 2 -3
2.2 Required accessories ............................. 2 -4
2.3 Recommended accessories ................... 2 -4
2.4 Recommended outside products ........... 2 -6
3 Preparation for operation ................ 3 -1
3.1 Battery supply ......................................... 3 -2
Inserting batteries ..................................... 3 -2
3.2 Connecting the probe ............................. 3 -4
4 Basics of operation .......................... 4 -1
4.1 Display..................................................... 4 -2
Display indications .................................... 4 -2
4.2 Keys ......................................................... 4 -4
4.3 Switching the instrument on and off ..... 4 -5
Indications after switching on.................... 4 -5
Dialog probes ............................................ 4 -5
Krautkramer DM4E / DM4 / DM4 DL Issue 05, 01/01 0-3
Content
1 Introduction ...................................... 1 -1
1.1 DM4E, DM4 and DM4 DL ........................ 1 -2
1.2 Information about this manual .............. 1 -5
1.3 Layout and presentation
of this manual ......................................... 1 -6
1.4 Important remarks
about thickness testing ......................... 1 -7
Conditions for application of
ultrasonic thickness gauges ..................... 1 -7
Operator training ...................................... 1 -8
Limits of ultrasonic testing ........................ 1 -8
Ultrasonic thickness measurement........... 1 -9
Influence of the test material .................... 1 -9
1.5 Important notes on
thickness testing with the DM4 ........... 1 -11
Probe Zero Adjustment........................... 1 -11
Couplant rests ........................................ 1 -12
Measurement precision .......................... 1 -12
Probes.................................................... 1 -12
DM4 DL Data Logger ............................. 1 -13
2 Scope of supply and accessories... 2 -1
2.1 Scope of delivery .................................... 2 -3
2.2 Required accessories ............................. 2 -4
2.3 Recommended accessories ................... 2 -4
2.4 Recommended outside products ........... 2 -6
3 Preparation for operation ................ 3 -1
3.1 Battery supply ......................................... 3 -2
Inserting batteries ..................................... 3 -2
3.2 Connecting the probe ............................. 3 -4
4 Basics of operation .......................... 4 -1
4.1 Display..................................................... 4 -2
Display indications .................................... 4 -2
4.2 Keys ......................................................... 4 -4
4.3 Switching the instrument on and off ..... 4 -5
Indications after switching on.................... 4 -5
Dialog probes ............................................ 4 -5

Krautkramer DM4 DL Specifications

General

Brand	Krautkramer
Model	DM4 DL
Category	Measuring Instruments
Language	English

Summary

Introduction

1.1 DM4E, DM4 and DM4 DL

Describes the three versions of the DM4 family: DM4E, DM4, and DM4 DL, highlighting their features.

1.4 Important remarks about thickness testing

Provides crucial warnings and conditions for accurate thickness testing, emphasizing user training and test setup.

Operator training

Highlights the necessity of operator training in ultrasonic thickness measurement, listing key knowledge areas.

1.5 Important notes on thickness testing with the DM4

Lists essential test requirements for ensuring correct measurements with the DM4, including probe zero adjustment.

Probe Zero Adjustment

Details considerations for Probe Zero Adjustment under varying temperatures and recommends 2-point calibration for accuracy.

Scope of supply and accessories

2.1 Scope of delivery

2.2 Required accessories

Preparation for operation

3.1 Battery supply

Explains how to supply power to the DM4 instruments using batteries and provides safety instructions for battery handling.

3.2 Connecting the probe

Guides the user on how to connect the appropriate probe to the DM4 instrument for operation.

Basics of operation

4.3 Switching the instrument on and off

4.6 Automatic probe zero adjustment

Details the automatic probe zero adjustment process performed by the instrument when a probe is connected.

4.7 Automatic probe recognition

4.8 Handling the probe

Operation

5.2 Calibrating the instrument

Explains the necessity and methods of calibrating the instrument on the material to be tested, including 1-point and 2-point calibration.

5.3 Thickness measurement

Details how to perform standard thickness measurements (THK mode) and minimum capture measurements (MIN mode).

5.4 Additional functions in the DM4 and DM4 DL

Describes advanced functions like sensitivity, alarm limits, difference mode, bandpass filter, and DUAL MULTI mode.

Operation of the Data Logger (DM4 DL only)

6.1 Data Logger

Introduces the DM4 DL's data logger for storing, displaying, deleting, and transferring measurement values.

6.3 Storing the measurement values

Details the process of selecting a file and storing measurement values, including file selection, memory locations, and inhibiting locations.

6.5 Deleting stored measurement values

Documenting measurement values (DM4 DL only)

7.1 Printing data

7.2 Transferring data to a PC

Details the process of transferring stored measurement data to a PC using ASCII format and terminal programs.

Care and maintenance

Interfaces and peripherals

10.1 Interface RS 232