The Stretch/Shrinkage Monitor Model 1690e Inidicating Controller includes all the inputs and outputs and all the measurement and control functions for any continuous process control application. And it has memory to store style-based control parameters for easy operator callup. And it can be expanded... add speed sensors, additional moisture channels and more. Features include...

• Microprocessor-based PLC system including membrane keyboard and 1/4-VGA LCD display with non-volative memory for processing parameters, multi-channel input and output cards, RS-232 port for report generation and RS-485 port for network connection.
• Utilizes Type R-90-200 surface-driven speed/length transducers with cast, stainless steel wheels to maintain accuracy for long-term use in contact with abrasive materials and in applications with significant temperature shifts.
• Optionally use Type FM-90-200 shaft-driven speed/length transducers for applications in which material contact is not feasable. Simply enter a ratio easily calculated from roll diameter and sprocket sizes.
• The standard configuration of the Model 1690e allows the connection of up to 10 Type R-90-200 or Type FM-90-200 speed speed/length tranducers. Four channels of increase/decrease control outputs can be easily expanded to eight channels.
• The Model 1690e is built from the Series 1600 PLC hardware and software components. This means that the 1690e can be converted to any other Series 1600 Indicating Controller or upgraded to one of the powerful "Combo Controllers" providing optimizaiton of multiple process parameters.