Features: ·Interfaces, amplifies, & filters signals from 4-arm AC bridge transducer signals ranging between 1.5mV rms & 150mV
rms.
·Module provides an AC excitation voltage of 2V rms to 10V rms at frequencies between 1kHz & 10kHz..
·Module provides simultaneous precision voltage and current outputs.
·Module circuitry can withstand 130v rms at its current output terminals without damage.
·All 3B20 series modules are mix-and-match and Hot
·Swappable
Application·Industrial signal conditioning
·Industrial signal isolation
·Industrial signal filteringPinout
Specifications
| Supply Voltage (v) |
±15V |
| Input Type |
AC Gage |
| Input Range |
1.5mV rms to 150mV rms |
| Isolated |
N |
| Bandwidth (Hz) |
100Hz |
| Output Type |
I,V |
| Output Range |
+/- 10V,4-20mA, 0-20mA |
DescriptionThe 3B Series Signal Conditioning I/O Subsystem provides a low cost, versatile method of interconnecting real world analog signals to a data acquisition, monitoring or control system. It is designed
The 3B20 is a wideband single-channel signal-conditioning module which interfaces 4-arm AC bridge transducer signals ranging between 1.5mV rms and 150mV rms, providing simultaneous precision voltage and current outputs. In addition, the module provides an AC excitation voltage of 2V rms to 10V rms at frequencies between 1kHz and 10kHz. The module withstands 130V rms at its current output terminals without damage thereby shielding computer-side circuitry from fieldside over-voltage conditions. The 3B20 is a plug-in, mix-andmatch, hot-swappable module and is easily field calibrated via front-panel zero and span adjustments for both voltage and current outputs.
3B Series Custom-Ranging Program Externallyprogrammable Model 3B20-00, enables the user to configure a special input range, including tare weight suppression, by using the optional plug-on AC1310 ranging card, which houses usersupplied resistors to determine zero and span. To facilitate selecting resistors, a Windows program, 3B-CUSTOM,calculates resistor values based on the user-desired input/output ranges.
The 3B20 input and AC bridge excitation output terminals are protected for up to 130V rms. The excitation amplitude and frequency can be specified with the Model 3B20 CUSTOM or user configured with Model 3B20-00 and an optional plug-on Model AC1310 ranging card. Both the voltage and current outputs can be independently adjusted for a minimum of +1V for the zero and 25% of the span range with front-panel useraccessible potentiometers. In addition, phase shifts of up to 37.25o between excitation signal and the output signal from the strain gauge or torque transducer can be compensated via frontpanel screw terminal adjustments.
3B20 Data Sheet
