Fluke Helios I Control Unit
Fabricant:
Modèle:
Helios I
Date:
1988
Catégorie:
Groupe:
Description:
Computer Front End
Information
The Fluke Helios I Computer Front End is a data acquisition and control subsystem that can be used with any kind of personal or mainframe computer. The Front End combines a full range of measurement capabilities with easy programmability. It includes: o An RS-232-C and an RS-422 standard serial Interface port for communication with a host computer. o A microcomputer with ROM and RAM to provide local intelligence. o Six option slots that accept any of a range of measurement and control modules, supporting a variety of both analog and digital inputs and outputs. Expansion chassis can be added to accommodate more up to a maximum of 1500 in the system. A maximum of 1000 channels can be accommodated if the Scan/Alarm option is in use. The Computer Front End is a smart intermediary between a computer and a real world measurement application. Through a standard computer Interface, the Front End gathers data about physical quantities and generates control or stimulus signals. The Front End is a medium speed, highly accurate measurement and control system. It can be adapted to a very broad spectrum of applications, with a capacity ranging from a single channel in a minimal configuration to 1500 (or 1000 with the Scan/Alarm option) in a fully expanded system. A microcomputer in the Front End executes commands received from the host computer, drives the measurement and control hardware, and sends appropriate responses back to the host. The command set is a collection of high level instructions, presented in a readable and easy-to-grasp format. Channel definition commands select ranges and sensor types. From then on, automatic signal conditioning and data conversion take place for sensors as common as thermocouples, RTDs and strain gauges, or as unique as a user-defined sensor type. Thus, the Front End responds to a measurement request command by returning a value in appropriate units of measurement. Conversely, a channel set command, which assigns a value to a control output, is translated into an electrical signal.

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Service et Manuel de l'utilisateur
Type manuel:
Service et Manuel de l'utilisateur
Pages:
708
Taille:
28.70 Mbytes (30099313 Bytes)
Langue:
english
Révision:
1
Manuel-ID:
834466
Date:
01 août 1988
Qualité:
Document scanné, tous les lisible.
Date de transfert:
15 janvier 2018
MD5:
05e5be7bf2fc9573bfd666a86c437014
Téléchargements:
181
Information
System Manual

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manuel de réparation
Type manuel:
manuel de réparation
Pages:
492
Taille:
34.45 Mbytes (36118375 Bytes)
Langue:
english
Révision:
2
Manuel-ID:
834382
Date:
01 août 1993
Qualité:
Document scanné, tous les lisible.
Date de transfert:
21 janvier 2018
MD5:
982729dc95154e4315419adedd8a2b14
Téléchargements:
187
Information
Section 1 How to Use This Manual Describes the organization and use of the Service Manual. Section 2 Gene al Information Describes the Front End and its available Accessories and options. Required test equipment, shipping, and factory service information are included here. Section 3 Theory of Operation Covers the theory of operation for the Front End mainframe. Option assembly theory is contained in the individual option subsections of Sections 8 and 9. Section 4 Maintenance General maintenance of the instrument, cleaning instructions and procedures to gain access to and remove mainframe assemblies are included here. Section 5 Testing and Troubleshooting Consists of mainframe performance tests and troubleshooting procedures designed to isolate a malfunction to the circuit board level. Component level troubleshooting may be performed using the Theory of Operation (Section 3) and Schematic Diagrams (Section 7). Section 6 List of Replaceable Parts Contains parts lists for the Front End mainframe and gives parts ordering information. Option assembly parts lists are in the individual subsections of Sections 8 and 9. Section 7 Schematic Diagrams Presents Front End mainframe schematics on foldout pages. Schematics for option assemblies are located in the individual option subsections. Section 8 Options -160 Through -169 Covers Options -160 through -169 in subsections ordered numerically by option number. Includes theory of operation, performance test procedures, calibration instructions (where applicable), schematics, and a replacement parts list. Section 9 Options -170 Through -17 9 Covers Options -170 through -17 9 in subsections ordered numerically by option number. Includes theory of operation, performance test procedures, calibration instructions (where applicable), schematics, and a replacement parts list. Section 9A Scan/Alarm Option -201 Includes description, theory of operation, performance test procedure, parts list, and schematic diagram. Section 10 Appendices A Specifications B Federal Supply Codes for Manufacturers C Service Centers D Manual Status Information

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