DESCRIPTION
The Ectron 350 Series conditioner-amplifiers are small, differential
input, direct-coupled amplifiers, each with a built-in variable
dc-voltage excitation supply. Three models comprise the 350
Series, differing only in physical size and mounting configuration.
With an input impedance of 20 MΩ and bandwidth of 20 kHz,
they are designed for use with a wide variety of external transducers
including piezoresistive-type strain gages. The dense packaging,
encapsulated construction, and advanced design result in a
finished product that can produce highly accurate data under
the most severe conditions.
All models are manufactured with
a full set of front-panel controls: selectable gain steps
from 1 to 1000 in a 1-2-5 step
sequence plus a vernier gain which can be switched "in" or "out" for
complete gain coverage from 1 to 2500; output-zero control,
bridge-balance control; excitation-voltage control.
Protection against electromagnetic interference (EMI) and radio-frequency
interference (RFI) is accomplished with the
use of a steel case and filters on all input, output, excitation, and
power leads.
APPLICATIONS
The 350 Series is particularly adapted to airborne or other vehicle
applications, where their small size and 12 V dc or
28 V dc power operation is desired.
The Model 351 includes four mounting studs to
attach the unit to a mounting plate. When so mounted it is the
most rugged of the models.
The Model 352 is designed to operate in any of the standard
400 Series enclosures.
SPECIAL MODIFICATIONS
Ectron has incorporated many desirable operating characteristics
into the 350 Series. While their small size and dense packaging
prohibit large-scale modifications, custom versions involving
variations in specifications are possible. Please consult the
factory for additional information.
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