Keithley 486 Instruction Manual page 32

List of Illustrations
SECTION 2 - Getting
Started
Figure 2-l
Model 486 Front Panel.
Figure 2-2
Model 487 Front Panel.
Figure 2-3
Model 486 Rear Panel.
Figure 2-4
Model 487 Rear Panel.
Figure 2-5
Connections to Measure Current.
Figure 2-6 Connections for V/I Ohms Measurements
SECTION 3
- Front Panel Operation
2-2
2-3
2-4
2-5
2-7
2-8
Figure 3-l
Line Voltage Switch and Line Fuse ..................................................
3-l
Figure 3-2
Data Entry.. .....................................................................
3-4
Figure 3-3
Trim Input Connector (3-Lug) ...................................................... 3-8
Figure 3-4
Picoammeter Connections. .........................................................
3-9
Figure 3-5
Model 487 V-Source Output Terminals, .............................................. 3-10
Figure 3-6
InterlockConnections.. ...........................................................
3-11
Figure 3-7 InterlockConnections .............................................................
3-11
Figure 3-8
V-SourceAdjust ..................................................................
3-12
Figure 3-9
Basic V-Source Connections ........................................................
3-14
Figure 3-10
V/I Ohms Connections (Source V Measure I) ......................................... 3-15
Figure 3-11
TriggerConnectors ................................................................
3-23
Figure 3-12
External Trigger Pulse Specifications. ................................................
3-23
Figure 3-13
Meter Complete Specifications. .....................................................
3-23
Figure 3-14
Typical Analog Output Connections. ................................................
3-26
Figure 3-15
Setup for MeasureLED Current .....................................................
3-29
Figure 3-16
Connections for Resistivity Test, ....................................................
3-30
Figure 3-17
Configuration for Surface Resistivity ................................................
3-30
Figure 3-18
Configuration for Volume Resistivity ................................................ 3-31
Figure 3-19
Simplified Model from Source Resistance and Source Capacitance Effects ................
3-33
Figure 3-20 TriboelectricEffect ................................................................
3-34
Figure 3-21
PiezoelectricEffect ................................................................
3-34
Figure 3-22
Multiple Ground Points Create a Ground Loop .......................................
3-35
Figure 3-23
Eliminating Ground Loop. ......................................................... 3-36
Figure 3-24
Improper Method to make Floating Measurements. ...................................
3-36
SECTION
4 - IEEE-488 Reference
Figure 4-1
ASCII Data Format (G2; Prefix and Suffix).
Figure 4-2
G6 and G7 Binary Data Formats (Counts/Exponent).
Figure 4-3
G4 and G5 Binary Data Formats (IEEE Std. 754).
Figure 4-4
Headers For Binary Formats.
Figure 4-5 SRQ Mask and Serial Poll Byte Format.
Figure 4-6 UO Machine Status Word (Factory Defaults Shown).
Figure 4-7
Ul Error Status Word.
4-11
4-12
4-12
4-13
4-21
4-33
4.34