Tektronix TEKFAX ADA400A, Instruction Manual

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Table of Contents
ii
ADA400A Differential Preamplifier
List of Figures
Figure 1: Configuration Jumper for Scale Factor Coding 3 . . . . . . . .
Figure 2: Front Panel Controls 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3: Input Connectors and Fuses 8 . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4: Output Connector 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5: Selecting the Input Impedance 13 . . . . . . . . . . . . . . . . . . . . . .
Figure 6: Differential Rejection of Common-Mode Signal 14 . . . . . . . .
Figure 7: Eliminating Ground Loops in a Differential Setup 15 . . . . . .
Figure 8: Input and Offset Range for X 0.1 Gain 17 . . . . . . . . . . . . . . . .
Figure 9: Input and Offset Range for X 1 Gain 17 . . . . . . . . . . . . . . . . .
Figure 10: Input and Offset Range for X 10 Gain 17 . . . . . . . . . . . . . . .
Figure 11: Input and Offset Range for X 100 Gain 18 . . . . . . . . . . . . . .
Figure 12: Typical DC and AC Coupled CMRR in X0.1 Gain 26 . . . . .
Figure 13: Typical AC and DC Coupled CMRR in X1 Gain 27 . . . . . .
Figure 14: Typical and Warranted CMRR in X10 Gain 27 . . . . . . . . . .
Figure 15: Typical and Warranted CMRR in X100 Gain 28 . . . . . . . . .
Figure 16: Location of Adjustments Underneath Inner Shield 43 . . . . .
Figure 17: Replacing TEKPROBE Interface Pins 53 . . . . . . . . . . . . . . .
Figure 18: Replacing the TEKPROBE collar 53 . . . . . . . . . . . . . . . . . . .
Figure 19: Input Connectors and Fuses 54 . . . . . . . . . . . . . . . . . . . . . . .
Figure 20: Potentiometer Connections 55 . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 21: Diagram of the ADA400A Differential Preamplifier 56 . . . .
Figure 22: ADA400A Differential Preamplifier — Exploded View 63 .
List of Tables
Table 1: Gain settings 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2: Controls, Connectors, and Indicators 9 . . . . . . . . . . . . . . . . .
Table 3: Effective Volts Per Division Settings 10 . . . . . . . . . . . . . . . . . .
Table 4: Nominal Characteristics — Signal Acquisition System 21 . . .
Table 5: Warranted Characteristics — Signal Acquisition System 22 .
Table 6: Warranted Characteristics — Environmental 23 . . . . . . . . . .
Table 7: Typical Characteristics — Signal Acquisition System 24 . . . .
Table 8: Typical Characteristics — Mechanical Characteristics 26 . . .
Table 9: Test Equipment 29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 10: Equipment Settings for Gain Checks 31 . . . . . . . . . . . . . . . .
Table 11: Equipment Settings for Offset Adjust 33 . . . . . . . . . . . . . . . .