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Servo Control Precise Digital Controller

STEP 2: Position control at 2in/min. Automatically switches to step 2 after yield and con- tinues until sample break.

Specify up to a 2 segment control profile under load, position or strain control. This is useful in running procedures in accordance with ASTM specifications for the elastic portion of the test curve then switching to accelerated rate after sample yield until sample break is achieved. For example see diagram facing for how a two step servo-control profile was used in a tension pull.

STEP 1: Strain control at .05 in/in/min. Elastic Portion of curve. Strain rate set according to ASTM E8 speci- fication.

Mounting

Strain (%) Stress

The Precise Digital Controller is designed to sit a top abench or table top or can be mounted with an angle bracketto a vertical column. All electrical connections are from therear.

Lower Display 5.25" Graphic Display Blue/White with CFL backlight Power Requirements 8.50
Rear 85-265 VAC (50-60 Hz) Consumption: 40 Watts 60

deg

12.00 6.75

Technical Specifications

Front Bottom Sensitivity: User selectable from 1mv/v.Excitation: 4.5 or 9 Vdc Full Bridge Strain Gage Transducers: Range: +/- 4.5 Vdc Resolution: > 1 part in 100,000 Analog X-Y Recorder Compatibility Load and Strain Input Compatibility High Level Input: Crosshead Position Input Compatibility Range: 0-10V @ 5 ma max. Resolution: 14-bit Servo Control Output Unit employs PID control algorithm Range: +/-10V @ 5 ma max. Resolution: 12-bit HP DeskJet HP LaserJet Type: Incremental Encoder Counter Resolution: 32-bit Input Frequency: 1 MHz max. Inputs: TTL Line Driver Excitation: 5 V Upper Display Printer Compatibility 4 line x 20 character LCD - 0.38" highIncludes LED backlight. Uses Hewlet Packard PCL3 enhanced Printer Control Language. Centronics parallel port interface required. Model #:PRCS-DA: Options: Dual Analog XY Recorder Output Shunt Calibration Check WinCom Plus Communications Program HP DeskJet Printer Precise Digital Controller for manually operated machines PRCS-S: Precise Digital Controller for servo-equipped machines

Contact the factory for applications and ordering assistance.

Service & Training Ordering Information

ADMET, Inc. strives to make its materials testing products powerful and easy-to-use. We offer free phone support andfee based in-house and on-site training seminars describing how to get the most out of your machine. We also offerseminars on how to install our products.

Copyright (c) 2007. ADMET, Inc. Norwood, MA 02062, USA. All Rights Reserved.