Datasheet

2200 System
Vishay Micro-Measurements
Document Number: 11262 [e-mail] www.vishaymg.com
Revision 18-Oct-06 21
Signal Conditioning Amplifier
MODEL 2270A SINGLE-CHANNEL ADAPTER
Pemits use of a stand-alone single-channel 2210A Amplifier.
The plug-in adapter provides for the power and input/output
connectors.
SPECIFICATIONS
Input: Input plug is provided; Bendix PT06-14-15 (SR).
Output: Standard ±10V, BNC receptacle. Tape 1.0Vrms,
BNC receptacle.
Remote: Provides access to remote calibration and
remote balance functions of 2210A Amplifier. The
required +5V power supply must be provided by the user.
Power: 115/230Vac, 50-60Hz, 12W max.
Fuse: 3/8A, 3 AG.
Size: 7.06 H x 3.20 W x 4.90 D in (180 x 81 x 125mm).
Weight: 0.8lbs (0.36kg).
THE 2200 SYSTEM PROVIDES BETTER DATA:
A floating, guarded input environment maximizes the
rejection of common-mode voltages up to ±350V (operating).
The input amplifier can also be ac-coupled for situations
where only dynamic signals are of interest.
The independent, isolated bridge excitation system
provides either constant-voltage or constant-current
excitation. A front-panel LED serves as a supervisory
indicator, and a front-panel switch removes bridge excitation
to assist in evaluation of circuit integrity.
An automatic balance circuit is used to provide wide
balance range and electronic injection of balance voltage.
This feature eliminates transducer loading and assures
sufficient balance capability for practically all input
configurations. The automatic balance circuit can be
disabled from the front panel to allow measurement of initial
unbalance, input noise, thermal offsets or zero shifts.
The four-pole Bessel low-pass filter provides five
selectable bandwidths from 1Hz to 10kHz. The 1Hz or 10Hz
positions can be used for quasi-static data with excellent
rejection of line frequency (60Hz) noise. The output of the
low-pass filter can be routed to either the standard or tape
output, or either output can be wideband.
Wide bandwidth and high slew rate at all gain settings and
at full output (±10V). This characteristic ensures that
integrity of the system’s performance is not compromised
when higher gain settings are required.
A standard (±10V) and a tape (1.0Vrms) output are
provided for each channel. The outputs are isolated from the
guarded input and from chassis (system) ground. This
feature gives the user complete independence to establish a
high-quality instrumentation ground system at the recording
or data acquisition site. Both outputs can drive long (high
capacitance) coaxial cables without instability.
The system provides optically isolated shunt calibration
circuits on each channel. Any desired calibration
configuration can be selected by internal switches. External
contact closures are also accessible via the input connector
to facilitate double-shunt (two-level) transducer calibration.
Calibration resistors can easily be changed to any special
values. No soldering is required.
Individual amplifiers are removable from the front panel
without disconnecting the input or output wiring. This gives
the user the option of dedicated rack or enclosure wiring,
sharing of amplifiers, and ease of amplifier replacement
under emergency conditions.