The Helman Group 1769 WEIGH SCALE MODULE HM1525 Manuale Utente

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Chapter 
1
 
 
 
 
Overview
 
 
You have just purchased the most advanced load monitoring solution 
available.  HELM INSTRUMENT COMPANY, INC. manufactures a 
complete line of load monitoring control solutions for use on metal 
stamping, forging, compaction and assembly presses; cold forming, cold 
heating, injection molding and die cast machines. 
 
Standard or custom transducers and load cells are available for in-die 
monitoring of transfer or progressive tooling.   
 
At HELM, quality is inherent not only in the design of our products but in 
the attitudes of our employees as well.  We’re working together to give 
you the best.  After all, that’s what our business is all about - providing 
innovative instrumentation to help make your manufacturing process 
more productive and your operation more effective. 
 
The Helm Weigh Scale combines machine and tooling monitoring with 
programmable limit switch function.  User programmable high and low 
limits protect the machine and tooling to ensure part quality. 
 
Critical setup information can be stored and uploaded as part of a die 
recipe program.  An optional resolver input module is used to compare 
machine/press tonnage to crank angle for real time signature analysis. 
 
 
Components 
The Helm Weigh Scale module is attached to the controller or to an 
adjacent I/O module on the din rail. The system is comprised of two 
parts; the input module and two Helm Strain gage based sensors. 
 
 
Strain Gain  
Transducer  
Operation 
The primary part of the load monitoring system centers around the 
measurement.  The basic function of the Helm Strain Gain sensor is to 
detect the amount of deflection imposed on the press or die as parts are 
being formed.  All Strain Gain sensors are matched to within 1% and 
therefore can be replaced without recalibration of the machine. 
 
The Helm Strain Gain sensors can be mounted to strategic high stress 
areas of the machine frame or strategically located in tooling or applied 
to stop blocks.  Signals from these sensors are routed to the Weigh 
Scale module for processing.  The Helm Strain Gage is capable of 
measuring either a tension or compression 
signal. 
 
 
 
 
 
 
 
 
 
 
 
 
 
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