Keithley 1801 Ander
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Model:
1801
Datum:
1993
Categorie:
Groep:
Omschrijving:
Nanovolt Preamp
Handleidingen type:
Service-en gebruikershandleiding
Pagina’s:
93
Grootte:
2.11 Mbytes (2211697 Bytes)
Taal:
english
Herziening:
Third printing
Handleidingen-ID:
1801-901-01
Datum:
Kwaliteit:
Elektronisch document, geen scan, zeer goed leesbaar.
Upload datum:
2012 05 20
MD5:
7b1ec535ac0216aede003ebb7e8b1c31
Downloads:
882
Informatie
1 General Information
1.1 Introduction ... 1-1
1.2 Features ... 1-1
1.3 Warranty information ... 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 Shipment contents ... 1-2
1.7.3 Instruction manual ... 1-2
1.8 Repacking for shipment ... 1-2
1.9 Model 2001 compatibility ... 1-3
1.10 Optional Accessories ... 1-3
2 Installation
2.1 Introduction ... 2-1
2.2 Card configuration ... 2-2
2.2.1 Preamplifier module ... 2-2
2.2.2 Power supply card ... 2-3
2.3 Power supply card preparation ... 2-4
2.4 Power supply card installation and removal ... 2-5
2.4.1 Card installation ... 2-5
2.4.2 Card removal ... 2-5
2.5 Connections ... 2-6
2.5.1 Power supply connections ... 2-6
2.5.2 Output connections to multimeter ... 2-7
2.5.3 Input signal connections ... 2-7
2.6 Operating considerations ... 2-9
2.6.1 Using the thermal isolation container ... 2-9
2.6.2 Minimum operating distance ... 2-9
3 Operation
3.1 Introduction ... 3-1
3.2 Preamplifier operation ... 3-1
3.2.1 Power-up detection ... 3-1
3.2.2 Preamplifier configuration menu ... 3-2
3.2.3 Enabling Model 1801 operation ... 3-2
3.2.4 Preamp ON/OFF states ... 3-2
3.2.5 Preamplifier filtering ... 3-4
3.2.6 Operational differences ... 3-5
3.2.7 IEEE-488 bus operation ... 3-7
3.3 Measurements ... 3-7
3.3.1 DC voltage measurements ... 3-7
3.3.2 AC voltage measurements ... 3-9
3.3.3 Four-wire resistance measurements ... 3-11
3.3.4 Frequency measurements ... 3-11
3.3.5 Differential thermocouple temperature measurements ... 3-14
3.4 Measurement considerations ... 3-18
3.4.1 Thermoelectric potentials ... 3-18
3.4.2 Source resistance noise ... 3-20
3.4.3 Magnetic fields ... 3-21
3.4.4 Electromagnetic interference (EMI) ... 3-22
3.4.5 Ground loops ... 3-22
3.4.6 Shielding ... 3-22
4 Performance Verification
4.1 Introduction ... 4-1
4.2 Environmental conditions ... 4-1
4.3 Warm-up period ... 4-2
4.4 Line power ... 4-2
4.5 Recommended test equipment ... 4-2
4.6 Verification limits ... 4-2
4.7 Restoring default conditions ... 4-3
4.8 Verification procedures ... 4-3
4.8.1 DC volts verification ... 4-3
4.8.2 AC volts verification ... 4-6
4.8.3 Resistance verification ... 4-6
5 Service Information
5.1 Introduction ... 5-1
5.2 Calibration ... 5-1
5.2.1 Environmental conditions ... 5-1
5.2.2 Warm-up period ... 5-1
5.2.3 Line power ... 5-2
5.2.4 Recommended calibration equipment ... 5-2
5.2.5 Offset adjustments ... 5-2
5.2.6 Normal calibration ... 5-4
5.2.7 Gain constants calibration ... 5-9
5.3 Principles of operation ... 5-10
5.3.1 Block diagram ... 5-10
5.3.2 Preamplifier module ... 5-10
5.3.3 Power supply cable ... 5-10
5.3.4 Power supply card ... 5-10
5.4 Special handling of static-sensitive devices ... 5-12
5.5 Troubleshooting ... 5-12
5.5.1 Troubleshooting equipment ... 5-12
5.5.2 Troubleshooting access ... 5-12
5.5.3 Troubleshooting procedure ... 5-12
6 Replaceable Parts
6.1 Introduction ... 6-1
6.2 Parts lists ... 6-1
6.3 Ordering information ... 6-1
6.4 Factory service ... 6-1
6.5 Component layouts and schematic diagrams ... 6-1
A Specifications
B Calibration Programs
Introduction ... B-1
Program requirements ... B-1
General program instructions ... B-1
C IEEE-488 Bus Command Summary