Intelligent Cable Solutions for Successful Measurement of Cavity Pressure

Successful cavity pressure measurement in production is not just a matter of having robust and precise sensors. The cabling system between sensors and production monitoring systems also has a vital part to play. Cable mix-ups lead to parts from the wrong cavities being rejected, rejects being delivered to the customer, and data and moldings being muddled in the documentation. A means of ruling out the possibility of mix-ups during setting up is thus the alpha and omega of connection technology. Multi-channel cabling from Kistler provides such a panacea by grouping the signals of up to eight sensors in one cable from the mold to the system!

As the amount of space available for mounting is limited, particularly in multicavity molds, multi-channel technology has to offer compactness and ease of mounting. Multi-channel connectors from Kistler with four (Type 1708A0) or eight (Type 1710A0) channels are only 26 mm deep and are based on single-wire and cut and grip technology. They allow the sensor cables to be connected and disconnected quickly and easily without any additional tools. Single-wire technology also allows the sensor cables to be readily cut to the required length and simply repaired.

With thermocouple amplifier Type 2205A… (dimensions HxWxD 29x53x30 mm), which is integrated directly into the mold, multi-channel cabling is also available for combined pressure and temperature sensors. This provides an absolutely reliable and simple cable system for pressure, temperature and combined measurements.

Background – Cavity Pressure Curve

The cavity pressure curve serves as a "fingerprint" of the injection molding process. It is the most significant variable in evaluating the quality of the molding.

As the supplier with the largest and widest range of sensors for all methods of injection molding, simple connection technol-ogy and extremely user-friendly, networkable systems, Kistler is the only manufacturer to offer holistic monitoring of injec-tion molding from a single source. The company is the world's leading manufacturer of pressure and temperature sensors for use in the plastics processing industry.

Kistler Group

Kistler’s core competence is the development, production and use of sensors for measuring pressure, force, torque and acceleration. Kistler’s know-how and electronic systems can be used to prepare measuring signals for use in analyzing physical processes, controlling and optimizing industrial processes, improving product quality in manufacturing and improving performance in sports and rehabilitation.

Kistler offers a comprehensive range of sensors and systems for engine development, automotive engineering, plastics and metal processing, installation technology and biomechanics.

A worldwide sales presence in the form of 20 group companies and 30 distributors ensures customer proximity, application support on an individual level and short lead times.

With a staff of more than 800, the Kistler Group is one of the world’s leading providers of dynamic measuring instrumentation. The Kistler Group achieved turnover of 174 million Swiss Francs in the 2006 financial year.