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Ruggedized Conditioner/Amplifier Ectron Model 414
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The Model 414 is a true differential amplifier with transformer
isolation between input, output and the power source.
An internal DC/DC converter provides bi-polar voltages
for the circuitry while accepting power from a single
external DC power supply or battery. This is 12 volts
for automotive applications or 28 volts for airborne systems.
In addition to the high performance DC amplifier, the
units can be optionally supplied with integral strain
gauge excitation supplies and bridge balance or zero suppression
(tare). Transformer coupling contributes to high common
mode rejection and the chopper design results in superior
zero stability. The use of top grade components and a
rigorous testing program ensures reliable operation over
a wide range of ambient temperatures.
The amplifiers are packaged in rugged, compact steel cases and will withstand high shock and vibration levels under fully operational
conditions. The steel case is 1.1" by 2" by 3" or 4" depending on options, with stud mounting bolts. On special order, flange mounting may
be substituted. All adjustment potentiometers are installed on one end, and a DAM-15 input/output connector is on the opposite end.
Four fixed gain steps are provided which are selected by jumpers in the input/output connector or by a front panel switch depending on options.
These, combined with the gain vernier, allow any gain between 20 and 1000 to be set. A full one year warranty applies when the equipment
is sued under any environmental condition within its rating.
Features:
• 100g shock, 20g vibration
• Excellent stability under large, fast temperature changes
• Ohmically isolated input and output
• 12 VDC or 28 VDC powered
• True differential input
• High common mode rejection
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