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Atec Vishay-P3 User Manual

Strainindicatorandrecorder, Micro-measurements

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Micro-Measurements

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FEATURES

• Four input channels
• Direct reading LCD display
• On-board data storage
• 0 to 2.5 VDC analog output
• Quarter-, half-, and full-bridge circuits
• Built-in bridge completion
• 120-, 350-, and 1000-ohm dummy gages
• Automatic zero-balancing and calibration
• Intuitive, menu-driven operations
• USB data link
• Operation from keypad or PC
• Portable, lightweight, and rugged
• Battery, USB, or line-voltage power
• Optional 10-pin transducer connectors

DESCRIPTION

The Model P3 Strain Indicator and Recorder is a portable,

battery-operated instrument capable of simultaneously

accepting four inputs from quarter-, half-, and full-

bridge strain-gage circuits, including strain-gage-based

transducers. Water-resistant grommets in the hinged

cover allow the lid to be closed with leadwires attached.

Designed for use in a wide variety of physical test and

measurement applications, the P3 functions as bridge

amplifier, static strain indicator, and digital data logger.
The Model P3 Strain Indicator and Recorder, utilizing a

large LCD display for readout of setup information and

acquired data, incorporates many unique operating

features that make it the most advanced instrument of

its kind. An extensive, easy-to-use menu-driven user

interface operates through a front-panel keypad to readily

configure the P3 to meet your particular measurement

requirements. Selections include active input and output

channels, bridge configuration, measurement units, bridge

balance, calibration method, and recording options,

among others.
Standard sensor input connection is via eccentric-lever-

release terminal blocks. Optional transducer connection

is available via side-mounted bayonet locking circular

connectors.

Data, recorded at a user-selectable rate of up to 1 reading

per channel per second, is stored on a removable flash

card and is transferred by USB to a host computer for

subsequent storage, reduction and presentation with the

supplied software.
The P3 can also be configured and operated directly from

your PC with a separate software application included

with each instrument. Additionally, a full set of ActiveX

components is provided for creating custom applications

in any language supporting ActiveX.
A highly stable measurement circuit, regulated

bridge excitation supply, and precisely settable gage

factor enable measurements of ±0.1% accuracy and

1 microstrain resolution. Bridge completion resistors of

120, 350 and 1000 ohms are built in for quarter-bridge

operation. Also, input connections and switches are

provided for remote shunt calibration of transducers and

full-bridge circuits.
The P3 operates from two readily available D cells.

Battery life depends upon mode of operation but ranges

up to 600 hours of continuous use for a single channel. It

can also be powered by connection to an external battery

or power supply, a USB port on a PC or with an optional

external line-voltage adapter, the Model P3-A105.

StrainIndicatorandRecorder

Document No.: 11102

Revision: 06-May-2011

P3

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