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DESCRIPTION
The Model 765 Programmable Transducer Conditioning Amplifier
(PTCA) features full remote or front-panel manual control of
virtually every operating function including: several excitation,
signal conditioning, and calibration modes; amplifier input,
output, filter and gain modes; and automatic and incremental
zero and bridge balance modes. Ideal for computer controlled
data acquisition systems, the Model 765 PTCA can be used with
almost any transducer from strain gages, RTDs and potentiometers
to thermocouples, accelerometers, and pressure gages. Its precision
amplifier can also be used for most low-level or high-level
signal sources.
Each Model 765 PTCA is self contained with individual
isolated power supply. It is a mechanically rugged modular
unit with all external metal surfaces at safety ground. Each unit is
provided with a front-panel plug-in Configuration Card with
a handle that doubles as a channel I.D. holder and with front-panel
monitor jacks for amplifier input and excitation output.
All user-configurable components, including bridge completion
resisters, shunt calibration resistors, balance limit resistor,
bridge calibration configuration switches, and a plug jumper
selection for voltage or current monitoring, are contained
on the Configuration Card.
Each Model 765 PTCA has an on-board
microprocessor, with battery backup, to handle all control
functions whether received via remote program command or via its front-panel manual
control.
ENCLOSURES
Ten Model 765 amplifiers mount in the Model R735 rack-mount
enclosure, which contains the IEEE-488 remote control interface.
The Model R735 is a standard 19-inch EIA rack enclosure, 7
inches high, with rear-panel mounted connectors for all inputs,
outputs, power and control. All mating connectors, except the
IEEE-488 interface connectors and BNCs, are furnished. Installation
or removal of indicidual amplifiers is accomplished from the
front of the rack enclosure without rear access or removal
of the mating connectors.
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FEATURES
- All Functions are IEEE-488 Programmable
- Programmable Functions:
- Auto Balance
- True Autozero
- Gains from 0.01 to 10,000
- Isolated Excitation Supply
- Constant Current / Constant Voltage
- Remote / Local Sense
- Output Level
- Filters
- Butterworth or Bessel
- 1 Hz to 30 kHz + Wideband
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