HBM AE501 - AE301 Measuring Amplifier

18
Clip
HBM A0114-6.3 en
4.2 AE301 Measuring amplifier
Fig. 4.2: Stick-on label in housing
• Connection method
The standard transducer connection-method is the 6-wire technique (with two
sensor lines). Cable lengths > 50 m require one resistor each with half the
bridge resistance value (R
B
/2) to be connected to the sensor line instead of
the feedback bridges. If the transducer is to be connected using a 4-wire cir-
cuit, the terminals 2 and 2’ and 3 and 3’ must be provided with jumper wires.
• 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
5 V 170 ... 5000 Ω
2.5 V 85 ... 5000 Ω