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.
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.
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.
- 20 MΩ Input Impedance
- Dc to 20 kHz Bandwidth
- Variable Excitation
- x1 to x2500 Gain
- Differential Input
- 12 V dc or 28 V dc Powered
- 100 g Shock
- EMI/RFI Protection
- Model 351: Operates from 24 to 32 V dc
- Model 351: Operates from 10.5 to 15 V dc
- Model 352: Operates from 24 to 32 V dc, will operate in 400 series enclosures
- Model 352: Operates from 10.5 to 15 V dc, will operate in 400 series enclosures