HAEHNE
Elektronische Messgeräte GmbH · Heinrich-Hertz-Str. 29 · D-40699 Erkrath Germany · Telefon 0211/9 25 91-0 · Fax 0211/9 25 91-20
http://www.haehne.de
Email: [email protected]
DMA3
DMA3 TI EN 02_19.indd
Technical modifi cation reserved
Adjustment instructions
- Apply power and select fi lter type (fi ltered/unfi ltered), only option C and N.
- Allow 15 min warm-up time.
- After the sensors are completely mounted remove all material exerting an
external force, except the forces acting under normal conditions. In case of web
tension sensors this is the measuring roll without web, e. g. plastic,
fi lm, paper...
- Perform zero adjust.
- Apply force or weight of approximately 70 to 110 % of nominal value (as availab-
le). Adjust to corresponding value on the display and store.
- Remove force or weight and perform zero adjust if necessary.
Display and operating elements
DOWN
UP
SET
MENU
LED
DISPLAY
1.
Select menu
2. Ad-
3. Storing
point with
LED blinks
Display
justing
Note
Filter behaviour
Fil.
dir / Fil
Fil. Is always ON if current output
current output
(direct/fi ltered)
is set to „fi ltered“.
Zero point
Zero
-10.0…100.0%
Enter a value diff erent from 0 in order to activate
calibration
the two-point calibration.
Calibration
Cal.
Calibration weight
with defi ned
10.0…110.0 %
load
Manual
Gain
Amplifi cation
amplifi cation
factor
adjustment
250…4000
Extended adjustment possibilities:
Value display
Cal. Gain
range 100% =
Standard: %-display (100 without decimal point)
adjustments
Actual value: display according to the selected
dimensions with decimal (decimal point-display)
Peak value
Fil. Gain
real time
maximal
display
minimal
Display
all LED’s
all segments
strongly
intensity
weakly
Output
Zero Cal
bi / uni
bipolar
bipolar (standard) :
±100% = ± 10V
mode
0 - 100% = 4(0) - 20mA
unipolar
unipolar:
±100% = 0 - 10V
±100% = 4(0) - 20mA
.
The menu is deactivated if no button is pressed within 20 seconds. Exit from the menu by pressing the key several
times. If the maximum output voltage during normal operating conditions is overloaded to approx. (-)12 volts the (-)OFL
display will appear. Interrupted sensor cables lead to the IOFL display. During the adjustment procedure the display OFL
has no special meaning.
The step range
increasees by
holding the button
Pressing the SET
button illuminates the corresponding LED.
The
LED goes OFF
after 4 seconds have elapsed and one can release the button.
Af
ter that the
LED is
ON until the corresponding procedure is completed.
To go to menu press + simultaneously. However, need to be pushed fi rst.
> 4 sec
Operating Instructions
100 … 2000.
10.0 … 200.0
1.00 … 20.00
With two point calibration and in unipolar output
mode the zero point is to be adjusted again.
Recommendation: 70 - 110%. If the two-point
calibration is activated then values higher than
fi rst calivbration point + 10% can be entered. If
„Gain“ appears on the display, then the necessary
amoplifi cation is out of the possible range. Under
menu option „Gain“ the necessary amplifi cation is
indicated. appears „zero“ on the display, then the
eff ective calibration weight is too small.
These are adjustments, therefore the calibration
has to be made after the appropriate selection.
Set key deletes the peak values. A change of the
real time display and the output mode deletes also
the peak values.