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]
HAEHNE
page 7
Amplification adjustment with calibration weights
(3. Menu step)
- adjust zero point (2. menu step)
- apply calibration weights to measuring a roll
- select the menu point "Cal" in the adjustment mode
- enter the percentage value of the calibration weight*
- store adjustment
increase
decrease
adjustment range:
10.0 …110.0 %
Fault conditions (Display)
"Gain": The calculated amplification is out of range and is displayed in menu step 4.
(calculated amplification as gain value)
"null": The calibration weight is too small.
*Model the web geometry with a cable or rope and apply calibration weight. The weight should approxi-
mate the actual web tension in the operating mode. The DMA2 offers the facility to increase the weight with
a percentage calculation. As an example: 70% of the required 100 kg are applied to the measuring roll.
In the adjustment mode "Cal" 70.0 are entered representing the percentage value.
Caution: If during zero point adjustment a value unequal to 0 has been entered then value adjustments are
possible only in steps of + 10%.
The step velocity
increases with
the key holding
time
measuring roll
calibration weight
amplifier
rope or
cable
08.08 DE1DM2EA.indd
