Micro-measurements – Atec Vishay-P3 User Manual

Page 2

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Micro-Measurements

Document No.: 11102

Revision: 06-May-2011

www.micro-measurements.com

7

P3

Strain Indicator and Recorder

P3

Document No.: 11102

Revision: 06-May-2011

HARDWARE SPECIFICATIONS

All specifications nominal or typical at +23°C unless

noted.
Inputs
Eccentric-lever-release terminal blocks accept up to four

independent bridge inputs. Accommodates 16-28 AWG

(1.3 to 0.35 mm diameter) wire.
The Transducer Option includes four 10-pin bayonet

locking circular connectors mounted on the side of the

case and wired in parallel to the lever-release terminal

blocks. The supplied mating connector has a 0.046 inch

(1.17 mm) diameter solder well.
BridgeConfigurations
Quarter-, half-, and full-bridge circuits. Internal bridge

completion provided for 120Ω, 350Ω and 1000Ω quarter

bridges, 60 to 2000Ω half or full bridge.
Display
Full dot-matrix structure with 128 dots x 64 dots FSTN

positive, gray transflective LCD with backlight. Display

update is twice a second.
DataConversion
High-resolution sigma-delta converter. 60 Hz or 50 Hz

noise rejection. User selectable.
BasicRange
±31,000 microstrain (±1 microstrain resolution) at Gage

Factor = 2.000
Accuracy
±0.1% of reading ±3 counts. (Normal mode operation at

Gage Factor = 2.000)
GageFactorSettings
Range 0.500 to 9.900

Balance
Single key operation to initiate automatic software

balance
BridgeExcitation
1.5 VDC nominal. Readings are fully ratiometric, and not

degraded by variation in excitation voltage
CommunicationInterface
Universal Serial Bus with type B connector. Used for

transferring stored data and firmware.
DataStorage

Media: Removable Secure Digital or Multimedia Card

(2GB max).
Data Recording Rate: 1 reading per second

maximum.

Calibration
Shunt calibration across each dummy resistor to simulate

5000 microstrain (±0.1%). Remote calibration supported

via accessible switch contacts at input terminal block.
AnalogOutput
BNC connector. 0 to 2.5V maximum output. Device

impedance of 2000Ω or greater. 480 samples/second

DAC output update rate.
Power
Internal battery pack using two “D” cells. Battery life up

to 600 hours (single channel, normal mode.) Can also

be powered from USB or by external battery or other

power source of 6 to 15 VDC. AC adapter optional

(Model P3-A105).
OperationalEnvironment
Temperature 0 to + 50°C. Humidity up to 90% RH,

noncondensing

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