Gn410 And Gn411 Bridge Input Cards - HBM Genesis GEN5i User Manual

GEN5i
12.6

GN410 and GN411 Bridge input cards

The GN410 and GN411 bridge input
cards are suitable for strain gages,
strain-gage based force, pressure or
torque transducers and piezo-
resistive accelerometers. The inputs
can also be used as a general
purpose low voltage differential
amplifier with AC and DC coupling. It
provides bipolar DC excitation
voltage or current, flexible software-
switched completion options and a
variety of calibration methods for any
type of bridge configuration.
Front panel connectors are LEMO
2B type. Every channel is equipped
with an independent high-gain
amplifier, 7-pole Bessel and
Butterworth anti-alias filters, 16-bit
Analog-to-Digital converter
operating at up to 1 MS/s, and digital
filtering. All channels are sampled at
full speed with no multiplexing and
almost immeasurable crosstalk. A
200 kS/s model is available for
medium speed acquisition
requirements.
The bridge amplifiers support
quarter, half and full bridge
configurations from three to eleven
wires. Each channel includes software-switched half-bridge completion
resistors, two fixed shunt calibration resistor and one socket for an additional
user-provided shunt resistor. A 350 Ω quarter-bridge completion resistor is
supplied for each channel, plus one socket for an additional user supplied value.
A unique and powerful ability allows the amplifier to individually measure each
input and each excitation lead to quickly diagnose wiring problems. Each
channel also features two set-points for trigger or alarm purposes plus
hardware detection of open/shorted excitation leads and amplifier over-range.
For more information about the Bridge input card, please refer to "B3244-1.0
en (GEN series GN410 and GN411)" on page 472.
264 I2679-4.0 en