HBM AE501 - Page 15

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Clip
HBM A0114-6.3 en
• Bridge excitation voltage
Use switch S26 to select the bridge excitation voltage V
E
according to the
strain-gauge full-bridge’s resistance R
B
.
Bridge excitation voltage V
E
Transducer resistance R
B
10 V 340 ... 5000 Ω
5 V 170 ... 5000 Ω
2.5 V 85 ... 5000 Ω
• Measuring frequency range
Use S28 to adjust the measuring frequency range to 10 Hz or 6 kHz.
• Zero point
- Discharge the transducer or charge with preload.
- Use digital voltmeter to measure output voltage, and use rotary switch S23
to adjust minimum indication (if necessary, use S22 to switch polarity); fine
balancing with P21 to 0.000 V.
• Measuring range
To obtain the maximum measurement resolution, the max. amplifier output-
voltage ("10 V) should be used.
AE101
V
E
= 2.5 V V
E
= 5 V V
E
= 10 V switch position S21
mV/V mV/V mV/V 1 2 3 4 5 6 7 8
0.34-0.48 0.17-0.24 0.09-0.12 X X
0.44-0.64 0.22-0.32 0.11-0.16 X X
0.60-0.84 0.30-0.42 0.15-0.21 X X
0.78-1.1 0.39-0.55 0.20-0.28 X X
1.04-1.46 0.52-0.73 0.26-0.37 X X
1.36-1.94 0.68-0.97 0.34-0.49 X X
1.80-2.56 0.90-1.28 0.45-0.64 X X
2.36-3.38 1.18-1.69 0.59-0.85 X X
3.12-4.46 1.56-2.23 0.78-1.12 X X
4.14-5.88 2.07-2.94 1.04-1.47 X X
5.46-7.76 2.73-3.88 1.37-1.94 X X
7.22-10.26 3.61-5.13 1.81-2.57 X X
Tab. 4.1: Nominal measured value depending on the bridge excitation voltage V
E.