Teledyne 2002 instruction manual Eg = Kg DT As/Dx

Page 20

Since the first two losses are essentially constant at high vacuum for a given sensor, we can measure these losses and subtract them from the input power which leaves only the rate of heat transmission through the

gas (Eg).

In the viscous flow regime, the Eg loss is directly dependent on the thermal conductivity of the gas (Kg), the surface area of the membrane, the differential temperature and is inversely proportional to distance between the membrane and the lid. It can be written as

Eg = (Kg DT As)/Dx

The thermal conductivity of the gas is essentially constant when in viscous flow where the Knudsen number (Kn) is less than 0.01. In the viscous flow regime there is no change in sensor output with pressure since all of the losses are constants with pressure.

In the molecular flow regime where (Kn > 1) the thermal conductivity of the gas becomes directly proportional to the gas pressure as shown below. We can expect then that Eg will be constant at high pressures and directly proportional to the pressure at low pressures. The energy loss Eg, changes between these two controlling equations as the system passes through the transition region (0.01 < Kn < 1).

 

 

Eg = arLt(273/Th)1/2(Th-Ta)AgP

 

Where

 

 

 

ar

=

accommodation coefficient

 

Lt

=

free molecule thermal conductivity

 

Th

=

temperature of heated membrane

 

Model 2002 Vacuum Gauge

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Contents Teledyne Hastings Manual Print History Table of Contents Features General InformationModel 2002 Sensors Model 2002 Control UnitSpecifications Installation Transducer InstallationReceiving Inspection Quick StartControl Unit Installation Initial OperationPanel Mount Instructions Transducer Cable AttachmentFront Panel Operation Overall Functional DescriptionRUN Mode Speed AdjustScientific Notation Normal OperationCAL Mode High and Low Set Point ModesPage Atmosphere Coefficient Adjustment GAS ModeMidrange Coefficient Adjustment Units Mode Default Calibration RestorationAnalog Output Rear Panel DescriptionRemote Zero Input Voltage to pressure conversion example Model Rear Panel Detail Power Entry ModuleTTL Outputs Dual Sensor Emodiment Theory of OperationPiezoresistive Sensor = ΔRL Pirani Sensor Et = Es + Er + EgEg = Kg DT As/Dx Dual Sensor Operation RS-232-E Interface Specifications Communications Option BoardInterface Connector Pin Assignments for RS-485 For RS-485 Half Duplex 2 wireInterrogation Commands Parameter Modification CommandsCalibration Adjustment Commands Reset / Restore Commands Device StatusRelay Interface Option Board Relay Board SpecificationsRelay Connector Pin Assignment 20 mA Interference Connector Pin Assignments MA Interface Option BoardOperation 0-10V Interface Connector Pin Assignmets 10V Interface Option Board= PTorr Channel1 Troubleshooting Guide Warranty Repair Policy Non-Warranty Repair PolicyDiagrams and Drawings Model 2002 Vacuum Gauge Model Outline Dimensions Model 2002 Vacuum Gauge Model 2002 Vacuum Gauge
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2002 specifications

Teledyne 2002 represents a significant advancement in the realm of sophisticated instrumentation and systems used across various industries. This innovative platform emerged as a versatile solution for a multitude of applications including environmental monitoring, industrial automation, and scientific research.

One of the most notable features of the Teledyne 2002 is its robust data analysis capability. Equipped with powerful processing units, it allows users to conduct real-time data analysis, ensuring accurate and timely results. This is particularly beneficial in fields where immediate decision-making is crucial, such as environmental assessments and industrial quality control.

The technology behind the Teledyne 2002 encompasses a variety of sensors and analytical instruments. Its modular design enables users to customize the system according to their specific needs, integrating various sensors such as gas analyzers, spectrometers, and temperature sensors. This flexibility makes the Teledyne 2002 applicable in diverse settings, from laboratory environments to rugged field conditions.

Another characteristic of the Teledyne 2002 is its user-friendly interface. The system is designed with an intuitive control panel and advanced software that provides comprehensive data visualization. This ease of use enhances productivity, allowing operators to facilitate complex analyses without extensive training.

Security and data integrity are also focal points of the Teledyne 2002. The system implements state-of-the-art encryption protocols to protect sensitive data. Moreover, it maintains compliance with industry standards, ensuring that the collected data is reliable and trustworthy.

In addition to its technological features, the Teledyne 2002 is built with durability in mind. The rugged construction allows it to withstand harsh environmental conditions, making it ideal for outdoor applications. Its compact design enables easy transportation, which is essential for fieldwork.

Moreover, the Teledyne 2002 includes connectivity options that facilitate seamless integration with existing systems. It can connect to cloud services, enabling remote monitoring and data storage. This feature not only enhances the functionality of the device but also allows for collaborative data sharing among teams.

Overall, the Teledyne 2002 symbolizes a convergence of advanced technology, user-centric design, and robust performance. With its extensive features and versatility, it stands out as a premier solution for professionals demanding precision and reliability in their analytical endeavors. Whether for environmental monitoring or industrial applications, the Teledyne 2002 is equipped to meet the challenges of modern data analysis.
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