IET Labs HARS-X Series, Руководство пользователя и обслуживания

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HARS Series
Contents
WARRANTY ..........................................................................................iii
Contents
............................................................................................... iv
Figures ............................................................................................... iv
WARNING .............................................................................................. vi
CAUTION ............................................................................................... vi
Chapter 1
INTRODUCTION ............................................................................ 1
Chapter 2
SPECIFICATIONS .......................................................................... 2
Chapter 3
OPERATION .................................................................................... 5
3.1 Initial Inspection and Setup ................................................... 5
3.2. Connection ............................................................................ 5
3.2.1 General Considerations ................................................. 5
3.2.2 Electrical Considerations .............................................. 5
3.2.3 Four-Wire Kelvin Lead Connections ............................ 5
3.2.4 Thermal emf Considerations ......................................... 6
3.3 Dial Setting ...................................................................... 6
3.4 Environmental Conditions ..................................................... 6
Chapter 4
MAINTENANCE ............................................................................. 7
4.1 Verification of Performance ................................................... 7
4.1.1 Calibration Interval ....................................................... 7
4.1.2 General Considerations ................................................. 7
4.1.3 Procedure ...................................................................... 7
4.2 Schematic .............................................................................. 7
Figures
Figure 1.1 HARS-X Series High-Accuracy Decade Substituter .............. 1
Figure 2.1 Typical Operating Guide Affixed to Unit ............................... 4
Figure 3.1 Optimal 4-Wire Kelvin Lead Connection ............................... 6
Figure 4.1 HARS Series Schematic Diagram .......................................... 8