Doser DM 4 A, Operating Instructions Manual

Measurement Preparation: 

.

material thicknesses<5cm 

‚

: 

use suitable bases 

�

 (for example: polystyrene or foamed plastic plates 

-no metal!) or even better: hold the material to be measured into the air   
.

thin materials (< 2 cm) 

‚

: 

measure on a pile (thickness at least 2 cm, avoid air gaps between the 

individual layers)   
.

look for an 

even, smooth surface 

ƒ (minimum size for the measurement 10x10cm)   

.

minimum distance of the electrodes 

from the edge of the surface: 1 cm 

Turn on the Meter: 

.

Push ON/OFF-button, the display shows the adjusted material group. Hold the instrument into the 

air for automatic zero point measurement and correction, if the zero point is not in the valid range, the display shows 
“NP-ERROR”.  
.

release the ON/OFF-button, the dislpay shows e.g. "A1: 0,00%" , the instrument is now ready for 

use (the first two characters shows always the adjusted material group and number).   

Parameter Settings: 

With code numbers parameter settings can be changed. Press both arrow buttons, the display shows “code:00“, 
adjust the required code with the arrow buttons and confirm it with OK. The following parameters are changeable: 
code 11: storage adjustments (OFF, ON single, ON auto)   

ON single: 

single values will be stored by pressing the OK-button 

ON auto: 

All values > 0 will be 

stored automatically after pressing Ok till the storage is filled up or till the OK-button is pressed again.   

code 12: number of measurements per second (mps) range0-10 code 13: number of 

measurements till automatic switching off (loops) range 0 -999, loops = 0: 
no automatic swiching off code 14: delete storage, through changing the 
material setting the   

storage will be deleted too. code 21: attenuation ( brake), range0-99 code 22: automatic maximum 

value measurinhg (automax)   

no automatic maximum measurement (float) 

Material Groups: 

For using the required stored material group the corresponding code 
has to be selected (the sign is always displayed as the first character): 
code 30: sign S, customer specific curves 
code 31: sign H, wood (HD5) 
code 32: sign P, paper and cardboard (PD2) 
code 33: sign A, wood (BD2) 
code 34: sign B, building materials (BD2) 
 

the selected group is always displayed during the measurements 
 

Additional adjustments can be made with the optional PC-Software DMI-Controller 

Checking Measuring Quality: