Keithley 2001-TCSCAN - Page 11

4 Service Information
Figure 4-1 Connections for reference junction test ...................................................................................................... 4-4
Figure 4-2 Connections for path resistance checks ...................................................................................................... 4-6
Figure 4-3 Connections for contact potential tests....................................................................................................... 4-7
Figure 4-4 Connections for same-channel isolation tests............................................................................................. 4-9
Figure 4-5 Connections for channel-to-channel isolation tests .................................................................................... 4-9
Figure 4-6 Connections for HI and LO terminal to chassis ground isolation tests .................................................... 4-10
Figure 4-7 Calibration with thermistor probe............................................................................................................. 4-12
Figure 4-8 Calibration with thermocouple wire ......................................................................................................... 4-13
Figure 4-9 Block diagram........................................................................................................................................... 4-14
Figure 4-10 Current-limiting resistor locations ........................................................................................................... 4-16
A Thermocouple Basics
Figure A-1 Thermocouple measurement...................................................................................................................... A-1
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