Keithley 6487 Reference Manual

Questionable event status 10-14
Queues 10-17
R
Range 3-25, C-6
and values 4-5
symbols for rel values 5-3
Units, Digits, Rate, and Filters 4-1
range change transients G-12
Rate 3-25, 4-6
RATE Key 4-6
Reading limits for 20mA to 20mA ranges 15-8,
15-11
Reading limits for 2nA to 2mA ranges 15-9
Reading Mode C-2
Reading registers 10-6
Rear panel 1-5
Recall 6-2
Recalling 6-10
reciprocal 5-5
Recommended test equipment 15-3
Register bit descriptions 10-10
Registers
Bit descriptions 10-10
Condition 10-15
Enable registers 10-4, 10-5
Event 10-16
Reading 10-6
reinstate the previous Rel 5-2
REL 5-2
Relative, mX+b, m/X+b (Reciprocal), and Log
5-1
Remote 9-1
Remote calibration F-1
Remote setup operation 1-9
REN (remote enable) 9-7
resistivity 2-11
Response 9-15
Message Terminator (RMT) 9-16
time 4-11
restore setup 1-9
Routine maintenance 17-1
RS-232
connections 9-18
RS-232 interface 9-2, 9-3, 9-16
RS-232 settings 9-16
S
safety shield 3-9, 3-12, 3-17
Safety symbols and terms 1-3
Saving calibration 16-13
scientific (SCI) 4-3
SCPI 3-14, 3-19, 3-28, 8-15
SCPI commands D-11
amps function 3-10, 3-14
autozero 3-4
buffer 6-5, 6-13
reset registers and clear queues 10-4
system 13-9
triggering 7-10
SCPI errors, eliminating B-7
SCPI language 9-2
SCPI programming
filters 4-12
line frequency 1-6
mX+b, m/X+b, and log 5-7
range and digits 4-4
rate 4-7
relative 5-4
zero check and zero correct 3-6
SCPI Reference Tables 14-1
SCPI Signal Oriented Measurement Commands
12-1
SDC (selective device clear) 9-8
SDEViation 6-7
select power-on setup 1-9
Sending a response message 9-15
Sending and receiving data, RS-232 9-16
SENSe 14-7
SENSe command summary 14-10
serial number 1-12, 11-3
Serial polling and SRQ 10-9
Service request enable register 10-8
Setting 8-14
Setting and controlling relative 5-2
Setting line voltage and replacing line fuse 17-2
Shielding 2-8
shielding G-7, G-8
Shielding vs. Guarding G-10
Short-form rules 9-12
Single command messages 9-13
Sink 8-12
Source 6-11, 8-14
Source capacitance G-6
source impedance G-5
Source resistance G-5
Source Resistance (minimum recommended)
G-6
Sourcing 3-16
SPE, SPD (serial polling)
9-9, 10-9
SPE, SPD polling sequence C-12
Specifications A-1
Speed vs. noise characteristics 4-6
SRQ 10-7, C-5, E-8
Standard event status 10-10
Start 8-7
statistics 6-4

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%