Equipment information

Keithley 2001-TSCAN Plug-In
Manufacturer:
Model:
2001-TSCAN
Date:
1993
Category:
Group:
Description:
Scanner Card

Information

The Model 2001-TCSCAN General Purpose/Thermocouple Scanner Card, which is designed to be used with the Model 2000, 2001, 2002, and 2010 DMMs to make accurate multi-channel thermocouple measurements. The DMMs will automatically convert type J, K, T, E, R, S, and B thermocouple voltages to Celsius, Fahrenheit, or Kelvin temperature readings. The Model 2001-TCSCAN can also be used for a variety of nine-channel, mixed-signal switching applications. The 500nV-125V signal voltage range of the Model 2001-TCSCAN makes it well suited for both low and high signal levels. The Model 2001-TCSCAN is a scanner card designed to be installed in the Model 2000, 2001, 2002, or 2010 Multimeter. Key features include: • Built-in reference junction (channel 1). • Low contact potential and offset current. • Input connectors are in contact with an isothermal block to minimize temperature differences. • Nine channels of 2-pole relay input. • Four channel pairs configurable for 4-pole operation. • Multiplex one of nine 2-pole, or one of four 4-pole channels into the DMM.

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Service and User Manual
Manual type:
Service and User Manual
Pages:
97
Size:
972.70 Kbytes (996045 Bytes)
Language:
english
Revision:
B
Manual-ID:
2001-TCSC-901-01
Date:
01 January 1997
Quality:
Electronic document, no scan, very well readable.
Upload date:
23 July 2020
MD5:
6571ba5f0c7e52b73a4ce834be9aa807
Downloads:
649

Information

1 General Information 1.1 Introduction ... 1-1 1.2 Features ... 1-1 1.4 Manual addenda ... 1-2 1.5 Safety symbols and terms ... 1-2 1.6 Specifications ... 1-2 1.7 Unpacking and inspection ... 1-2 1.7.1 Inspection for damage ... 1-2 1.7.2 Handling precautions ... 1-2 1.7.3 Shipment contents ... 1-2 1.7.4 Instruction manual ... 1-2 1.8 Repacking for shipment ... 1-3 1.9 Optional Accessories ... 1-3 2 Card Connections and Installation 2.1 Introduction ... 2-1 2.2 Handling precautions ... 2-1 2.3 Connections ... 2-1 2.3.1 Card configuration ... 2-2 2.3.2 Card connectors ... 2-3 2.3.3 Wiring procedure ... 2-3 2.3.4 Output connections ... 2-4 2.3.5 Dressing leads ... 2-4 2.4 Typical connecting schemes ... 2-6 2.4.1 Thermocouple connections ... 2-6 2.4.2 Voltage connections ... 2-7 2.4.3 Resistance connections ... 2-8 2.5 Card installation and removal ... 2-10 2.5.1 Scanner card installation ... 2-10 2.5.2 Output connections to multimeter ... 2-12 2.5.3 Scanner card removal ... 2-12 3 Operation 3.1 Introduction ... 3-1 3.2 Signal limitations ... 3-2 3.3 Scanner card detection ... 3-2 3.3.1 Power-up detection ... 3-2 3.3.2 Scanner option bus query ... 3-2 3.4 Front panel scanner controls ... 3-2 3.4.1 Open and close channels (CHAN) ... 3-2 3.4.2 Configure channels (CONFIG-CHAN) ... 3-4 3.4.3 Scan configuration (CONFIG-SCAN) ... 3-5 3.4.4 Using SCAN to configure scan parameters and start scanning ... 3-5 3.4.5 Using EXIT to stop scanning ... 3-6 3.4.6 Manual scanning ... 3-6 3.5 IEEE-488 bus scanner commands ... 3-6 3.6 Closing and opening channels ... 3-9 3.6.1 Closing channels ... 3-9 3.6.2 Opening channels ... 3-9 3.7 Scanning channels ... 3-9 3.7.1 Front panel scanning ... 3-9 3.7.2 IEEE-488 bus scanning ... 3-10 3.8 Temperature measurements ... 3-11 3.8.1 Thermocouple temperature measurements ... 3-11 3.8.2 RTD temperature measurements ... 3-13 3.8.3 Using RTD and thermocouple sensors together ... 3-14 3.8.4 IEEE-488 programming example (temperature measurements) ... 3-15 3.9 Basic front panel operation ... 3-18 3.9.1 Configure stepping and scanning ... 3-18 3.9.2 Open and close channels ... 3-19 3.9.3 Start stepping or scanning ... 3-20 3.10 Temperature measurements ... 3-20 3.10.1 Temperature measurement configuration ... 3-21 3.10.2 Temperature measurement procedure ... 3-21 3.11 Remote operation ... 3-21 3.11.1 IEEE-488 programming example (temperature measurements) ... 3-23 3.12 Typical applications ... 3-25 3.12.1 Resistor testing ... 3-25 3.12.2 Resistor temperature coefficient testing ... 3-28 3.13 Measurement considerations ... 3-30 3.13.1 Thermocouple measurement error sources ... 3-30 3.13.2 Path isolation ... 3-31 3.13.3 Channel resistance ... 3-31 3.13.4 Magnetic fields ... 3-31 3.13.5 Electromagnetic Interference (EMI) ... 3-32 3.13.6 Ground loops ... 3-32 3.13.7 Keeping connectors clean ... 3-33 4 Service Information 4.1 Introduction ... 4-1 4.2 Handling and cleaning precautions ... 4-1 4.2.1 Handling precautions ... 4-1 4.2.2 Soldering precautions ... 4-2 4.3 Performance verification ... 4-2 4.3.1 Environmental conditions ... 4-2 4.3.2 Recommended equipment ... 4-2 4.3.3 Scanner card connections ... 4-2 4.3.4 Reference junction test ... 4-2 4.3.5 Path resistance tests ... 4-4 4.3.6 Contact potential tests ... 4-5 4.3.7 Isolation tests ... 4-8 4.4 Calibration ... 4-10 4.4.1 Calibration with thermistor Probe ... 4-10 4.4.2 Calibration with thermocouple wire ... 4-11 4.5 Special handling of static-sensitive devices ... 4-13 4.6 Principles of operation ... 4-13 4.6.1 Block diagram ... 4-13 4.6.2 Relay control ... 4-14 4.6.3 Switching circuits ... 4-14 4.6.4 Power-on safeguard ... 4-14 4.6.5 Reference junction ... 4-14 4.7 Troubleshooting ... 4-14 4.7.1 Troubleshooting equipment ... 4-14 4.7.2 Troubleshooting access ... 4-14 4.7.3 Troubleshooting procedure ... 4-15 4.8 Scanner card modification ... 4-15 5 Replaceable Parts 5.1 Introduction ... 5-1 5.2 Parts lists ... 5-1 5.3 Ordering information ... 5-1 5.4 Factory service ... 5-1 5.5 Component layout and schematic diagram ... 5-1 A Thermocouple Basics A.1 Definitions ... A-1 A.2 Theory ... A-1 A.3 Measurement procedure ... A-2 A.4 Measuring example ... A-2 B Thermocouple Conversion Tables

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