Krautkramer DM4E / DM4 / DM4 DL Issue 05, 01/01 5-13
Additional functions in the DM4 and DM4 DL Operation
5.4 Additional functions in the
DM4 and DM4 DL
The DM4 and the DM4 DL have further functions for
wall thickness measurement in the SPEC menu:
• Sensitivity setting (GAIN)
• Lower alarm limit setting (LO-L)
• Upper alarm limit setting (HI-L)
• Selection of Difference mode (DIF)
• Bandpass filter setting (FLTR)
• In addition to these, the DM4 DL also has functions
for data transfer (refer to Chapter 7).
Setting the sensitivity GAIN
You can change the sensitivity of the DM4 and the
DM4 DL. The selection of the sensitivity is dependent
on the characteristics of the material (structure, graini-
ness, paint layer etc.).
The basic setting Automatic changes the sensitivity
depending on the sound velocity.
Operation:
– Press m until SPEC appears.
– Press d or u until GAIN is displayed.
– Press c.
The active sensitivity set is displayed.
– Select the required sensitivity with d or u:
AUTO automatically sets the sensitivity on
LO low sensitivity
MED medium sensitivity
HI high sensitivity
– Acknowledge with c.
Krautkramer DM4E / DM4 / DM4 DL Issue 05, 01/01 5-13
Additional functions in the DM4 and DM4 DL Operation
5.4 Additional functions in the
DM4 and DM4 DL
The DM4 and the DM4 DL have further functions for
wall thickness measurement in the SPEC menu:
• Sensitivity setting (GAIN)
• Lower alarm limit setting (LO-L)
• Upper alarm limit setting (HI-L)
• Selection of Difference mode (DIF)
• Bandpass filter setting (FLTR)
• In addition to these, the DM4 DL also has functions
for data transfer (refer to Chapter 7).
Setting the sensitivity GAIN
You can change the sensitivity of the DM4 and the
DM4 DL. The selection of the sensitivity is dependent
on the characteristics of the material (structure, graini-
ness, paint layer etc.).
The basic setting Automatic changes the sensitivity
depending on the sound velocity.
Operation:
– Press m until SPEC appears.
– Press d or u until GAIN is displayed.
– Press c.
The active sensitivity set is displayed.
– Select the required sensitivity with d or u:
AUTO automatically sets the sensitivity on
LO low sensitivity
MED medium sensitivity
HI high sensitivity
– Acknowledge with c.