Siemens 125-5033 owner manual Applications, Fume Hood Controller 2-Position Constant Volume

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Applications

Fume Hood Controller: 2-Position Constant Volume

Application 940 is designed for use with a constant volume or two-position fume hood in a manifold fume hood exhaust system. In this application, two position fume hoods have an individual exhaust damper or venturi air valve connected to a central fan. The application modulates the exhaust flow control device to maintain a high or low flow setpoint based on inputs from the ODP (Operators Display Panel), Digital Input, an exhaust airflow sensor, and the controller setpoints (Figure 10).

Figure 10. Application 940 Control Drawing shown using a damper.

Siemens Building Technologies, Inc.

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Contents 125-5033 Rev. AA, September Two-State Constant Volume Fume Hood ControllerPage Service Statement Page Table of Contents High and Low Exhaust Flow Control Convention Example How To Use This ManualManual Organization Manual ConventionsDatamate Software Manual SymbolsWhere To Send Comments Notation Symbol MeaningPneumatic Actuation Product OverviewRelated Equipment Electronic ActuationApplication Description Ordering NotesHardware Outputs Power WiringCommunication Wiring Hardware InputsIndication Controller LED IndicatorsOperator Display Panel ODP LED TypeOperator Display Panel Laboratory Exhaust Air TerminalLaboratory Exhaust Air Terminal Venturi Air ValvesHigh Speed Electronic Actuation Pneumatic Actuation Low Speed Electronic ActuationPneumatic Actuator Analog Output-Pneumatic AO-P ModuleAirflow Sensor Differential Pressure TransmitterCables Applications Fume Hood Controller 2-Position Constant VolumeElectronic High and Low Exhaust Flow ControlCalibration Control LoopsDO3 Output Functionality Alarm OperationAlarm Strategies Emergency Purge FeatureEmergency Purge Operation Emergency Purge Strategies Fail-safe Operation Address Descriptor Description Point DatabaseFlow Coeff Flow P Gain Basic Service Information TroubleshootingPreventive Maintenance Controller LEDs Safety FeaturesControl loop GlossaryAlgorithm Centralized controlField panel OCC modeEnglish units Equipment controllerPortable Operator’s Terminal Override switchSlave mode On textTerminal Equipment Controller Unocc modeApplication IndexIndex

125-5033 specifications

The Siemens 125-5033 is a highly regarded circuit breaker in the world of electrical engineering and power distribution. Known for its robust design and versatile applications, this device offers a host of features that make it suitable for both commercial and industrial use.

One of the main features of the Siemens 125-5033 is its compact size. This allows for easy integration into existing systems without occupying excessive space, making it an ideal choice for facilities with limited room for electrical infrastructure. Its ability to handle high current ratings, typically around 125 amps, ensures that it can support a variety of electrical loads, making it versatile across different applications.

The Siemens 125-5033 employs advanced technologies, such as thermal-magnetic trip mechanisms. This allows for reliable protection against overloads and short circuits. The thermal component of the trip mechanism is designed to react to sustained overcurrent conditions, while the magnetic component responds instantaneously to short circuits. This dual-functionality ensures that the circuit breaker can effectively protect both the conductors and the connected equipment.

In terms of safety, the Siemens 125-5033 comes with advanced arc suppression technologies that minimize the risk of arcing during the circuit interrupting process. This not only enhances the longevity of the breaker but also safeguards personnel working near electrical installations. Additionally, the device features a clear, accessible reset mechanism, making it user-friendly and easy to operate in case of an interruption.

Another notable characteristic of the Siemens 125-5033 is its built-in ground fault protection option. This capability provides an added layer of safety, ensuring that any ground faults are detected and addressed promptly. It is particularly useful in environments where moisture or dust can compromise electrical safety.

The Siemens 125-5033 also boasts compatibility with various monitoring and control systems, enabling seamless communication and integration into smart building management systems. This feature allows facility managers to monitor power usage, identify potential issues, and optimize energy consumption effectively.

Overall, the Siemens 125-5033 circuit breaker is a reliable, safe, and technically advanced choice for those looking to enhance their electrical systems. Its compact size, dual-trip mechanism, ground fault protection, and compatibility with modern technologies make it a valuable asset for any facility looking to improve its electrical safety and efficiency.