GE CTR 80 manual Temperature Controller, Operation, Important Refrigerant Information

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8 General Operation

8.5.1Operation

The bath controller automatically switches off cooling when the bath is oper- ated above 50°C to protect the system from extreme pressures. The refrigera- tion system is also protected by a brownout and over voltage protection device that switches off power to the system when the line voltage is outside the safe operating range. The display indicates “LoLinE” when this condition exists. A time delay prevents the refrigeration from restarting for a short time after ade- quate line voltage has been restored.

8.5.2Important Refrigerant Information

The refrigeration system in this bath has been designed to perform at ultra-low temperatures. As a result, aspects of the design are uncommon and the refrig- erants are non-standard.

The system is cascaded, meaning there are two separate systems with the first one chilling the second. This is required to reach temperatures below –40°C. Normal refrigeration does not use a cascading technique, and many refrigera- tion technicians are not familiar with such systems.

The first stage refrigerant is an HFC known as R-507. The second stage per- forms the ultra-low cooling. Its refrigerant is an HFC R-508B, also known as SUVA-95.

What this means to you:

•The cascade system is complex and its uncommon nature means that many local refrigeration service technicians may not be able to service it. If your bath needs survice, call GE Kaye Instruments Customer Service at 1-800-964-KAYE

•The compressor manufacturer does not warranty their compressors when used with non-standard refrigerants. Warranty of these compressors must be handled through GE Kaye Instruments only. There is no other way for you to receive parts or service on your compressor. You must receive your parts or service from GE Kaye Instruments.

8.6Temperature Controller

The bath temperature is controlled by a special digital temperature controller. The controller features a 24-bit analog-to-digital converter (DAC) that gives it remarkable accuracy and stability.

The bath temperature is monitored with a platinum resistance sensor in the con- trol probe. The controller uses a proportional-integral-derivative (PID) algo- rithm to determine how much heat the bath needs. The bath is heated by a solid-state relay (SSR) controlled 500W heater.

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Contents GE Kaye World Headquarters Table of Contents Parts and Controls General OperationController Operation Maintenance Trouble Shooting Digital Communication InterfaceWiring Diagram Figures Tables Symbols Used Before You StartSafety Information Canadian Standards AssociationBurn Hazard Bath Fluids Cold Baths Customer Service Information World HeadquartersIntroduction Specifications Environmental ConditionsHardware Warranty and Assistance Instrument WarrantyIn-Warranty Repairs After-Warranty RepairsEquipment Maintenance Agreements Customer SupportCustomer Support Agreement Customer Site AssistanceQuick Start UnpackingSet-up Power Setting the TemperatureAccess set-point selection Set-point 1, 25.0C currently used Installation Drain Valve Installation InstructionsBath Environment Dry-out PeriodFilling With Fluid Necessary General Comparison CalibrationBath Use Calibration of Multiple Probes Parts and Controls Control PanelBath Tank and Lid Back PanelBack Panel Temperature Range General OperationBath Fluid ViscositySafety Thermal ConductivityThermal Expansion Electrical ResistivityCost Commonly Used FluidsWater Distilled EthanolFluid Characteristics Table Mineral OilSilicone Oil Dow Corning 200.05, 200.10 Limitations and Disclaimer Table of Various Bath FluidsStirring HeaterRefrigeration Temperature Controller OperationImportant Refrigerant Information General Operation Bath Temperature Temperature Set-pointController Operation Programmable Set-pointsDisplay Temperature Temperature Scale Units Set-point ValueScan Scan ControlScan Rate Heater Power Secondary MenuProportional Band New proportional band setting Cutout CO= 80CController Configuration Operating ParametersHigh Limit Low LimitSerial Interface Parameters CoolingDuplex Mode Baud RateSample Period Calibration Parameters LinefeedHard Cutout 11.2 R0Alpha DeltaDigital Communication Interface Serial CommunicationsWiring SetupRS-232 Cable Wiring for IBM PC and CompatiblesInterface Commands Duplex ModeSerial Operation Sample PeriodSecondary Menu Lfeed=on Lf=on Calibration Procedure Calibration ProcedureCalibration Equipment CalibrationCalibration Procedure Maintenance Maintenance Trouble Shooting TroubleshootingLow Voltage Directive Safety CE CommentsEMC Directive Wiring Diagram Revisions

CTR 80 specifications

The GE CTR 80 is an advanced technology system that has redefined efficiency and reliability in the realm of industrial control systems. Developed by General Electric, this system is tailored for various sectors, including manufacturing, energy production, and process management. Its design emphasizes modernity and innovation, making it a superior choice for companies aiming to optimize operations.

One of the main features of the GE CTR 80 is its robust control architecture. This architecture leverages a distributed control system (DCS) model, allowing for decentralized operation while maintaining central oversight. This structure enhances reliability by reducing the chances of system failures, and it enables quick local responses to changing operational conditions, ensuring minimal downtime.

The GE CTR 80 integrates cutting-edge technologies, such as advanced data analytics and machine learning algorithms. These technologies provide real-time insights into equipment performance and operational efficiency, facilitating predictive maintenance and proactive decision-making. The built-in analytics capabilities help operators identify trends and potential issues before they escalate into critical problems, significantly lowering operational risks.

The system is equipped with a user-friendly interface that promotes ease of use and navigation. Operators can quickly access various parameters and performance metrics through intuitive dashboards. Furthermore, customizable alerts and notifications ensure that operators receive timely information about any irregularities in system performance, enabling swift interventions when necessary.

Another notable characteristic of the GE CTR 80 is its seamless integration with existing systems. It supports open communication protocols, making it compatible with various sensors and devices, which is essential for organizations looking to upgrade their current infrastructure without overhauling their entire setup. This adaptability makes the CTR 80 an ideal solution for industries undergoing digital transformations and seeking to enhance connectivity.

Moreover, the GE CTR 80 is built with security as a priority. It features robust cybersecurity measures to protect data integrity and prevent unauthorized access, ensuring that operational data remains confidential and secure from potential threats.

In summary, the GE CTR 80 is a powerful industrial control system that combines reliability, advanced analytics, user-friendly functionality, and robust security features. Its versatility and adaptability make it a preferred choice for modern industrial applications, driving operational excellence and enhancing productivity across various sectors.
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