HBM AE101 - Page 23

24
Clip
HBM A0114-6.3 en
Example 5
Displacement transducer, nominal displacement " 20 mm ¢ " 80 mV/V
Measuring range wanted: 16 mm ¢ 10 V
16 mm
20 mm
•
10 V
10 V
• 80 mVńV + 64 mVńV
Position transducer to 16mm displacement, e.g. using gauge blocks. Use S21
to select the appropriate interval as given in Tab. 4.3 (page 23) (switch on
4 + 8), and use P22 to adjust the output voltage to 10V exactly. The measur-
ing range can also be adjusted with no transducer connected by means of a
calibration unit (e.g. BN 4800) that simulates the transducer signal.
• Additive calibration signal
The measuring range can also be adjusted using the additive calibration sig-
nal (8mV/V).
Example 6
Displacement transducer, nominal displacement " 20mm ¢ " 80mV/V;
Measuring range wanted: 16mm ¢ 10V.
16 mm
20 mm
•
10 V
10 V
• 80 mVńV + 64 mVńV
Calculate nominal measurement, execute zero balance (see above) and use
S21 to select the corresponding measuring-range interval. Activate additive
calibration signal (set S25 to CAL) and use P22 to adjust with the transducer
in displaced position. The amplifier has now been calibrated. Adjust S25 to
MEAS.
8mVńV
64 mVńV
• 10 V + 1.250 V
• Synchronization
The maximum number of modules that can be synchronized is 16.
For synchronization of several CF amplifiers, one master device must be de-
fined by adjusting S24 to MASTER; the other devices must be set to SLAVE
using S24. Then, interconnect terminals 8. Synchronization is also possible
with AE301 measuring amplifiers.