Keithley 2001 User Manual

IEEE-488 Reference
4-103
Formats :rout:scan:rat:rch <list>
:rout:scan:delt:rch <list>
Defaults Power-up Saved power-on setup
*RST Channel 5
:SYSTem:PRESet Channel 5
Query :RCHannel? Query reference channel
Short-form formats: :rout:scan:rat:rch?
:rout:scan:delt:rch?
Response message: (@ chanlist) where; chanlist = 1 to 10
Description These commands are used to select the reference channel for the ratio and delta calculations.
Note that channel 5 (which is the default) and channel 10 are the high speed solid state switches
on the Model 2001 SCAN. Also note that channels 6 through 10 cannot be selected when the Ω4
function is selected for the specified calculation (see :FUNCtion).
When the ratio calculation is performed (see :SCAN:LSELect), it is calculated as follows:
When the delta calculation is performed (see :SCAN:LSELect), it is calculated as follows:
Programming example 10 OUTPUT 716; “:rout:scan:rat:rch (@1); rch?”
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Selects channel 1 as the reference channel, and then queries the reference channel.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays the reference channel (@1).
:MCHannel <list>
:ROUTe:SCAN:RATio:MCHannel <list> Specify measure channel for Ratio
:ROUTe:SCAN:DELTa:MCHannel <list> Specify measure channel for Delta
Parameter <list> = (@ chanlist)
where; chanlist is a single channel number (1 to 10)
Formats :rout:scan:rat:mch <list>
:rout:scan:delt:mch <list>
Defaults Power-up Saved power-on setup
*RST Channel 10
:SYSTem:PRESet Channel 10
Ratio
Measure Channel
Reference Channel
---------------------------------------------=
Delta = Measure Channel - Reference Channel

Keithley 2001 Specifications

General

Model	2001
Category	Multimeter
Manufacturer	Keithley
Type	Digital Multimeter
Digits of Resolution	7.5
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Connectivity	GPIB, RS-232
Display	VFD
Resistance Accuracy	0.008% + 2.0 mΩ
Frequency Accuracy	±0.01%
DC Current Range	10 μA to 3 A
AC Current Range	10 μA to 3 A
Power Supply	100 V to 240 V AC, 45 Hz to 66 Hz