Keithley 2001 User Manual

IEEE-488 Reference
4-159
Line 10 Two commands in this program message; the first changes the resistance value to
200Ω, and the second queries the resistance value.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays the resistance value (200).
4.19.20 :SPRTD commands
[:SENSe[1]]:TEMPerature:SPRTD:RZERo <NRf>
[:SENSe[1]]:TEMPerature:SPRTD:A4 <NRf>
[:SENSe[1]]:TEMPerature:SPRTD:B4 <NRf>
[:SENSe[1]]:TEMPerature:SPRTD:A7 <NRf>
[:SENSe[1]]:TEMPerature:SPRTD:B7 <NRf>
[:SENSe[1]]:TEMPerature:SPRTD:C7 <NRf>
Parameters :RZERo <NRf> Set RTD 0˚C resistance value
:A4 <NRf> Set A4 coefficient
:B4 <NRf> Set B4 coefficient
:A7 <NRf> Set A7 coefficient
:B7 <NRf> Set B7 coefficient
:C7 <NRf> Set C7 coefficient
Query :RZERo? Query RTD 0˚C resistance value
:A4? Query A4 coefficient
:B4? Query B4 coefficient
:A7? Query A7 coefficient
:B7? Query B7 coefficient
:C7? Query C7 coefficient
Description These commands program the various parameters for SPRTD (Standard Platinum Resistance
Thermometers). A single SPRTD, however, usually cannot be used to cover the entire range, so
the temperature range is broken up into several subranges. An SPRTD is supplied with a certif-
icate of calibration that lists the calibration constants and the temperature range supported. In
most cases, the supplied coefficients must be translated into Model 2001 values as summarized
in the table below. See paragraph 3.4.5 in Section 3 for more information.
Table 4-26
RTD coefficients to Model 2001 coefficients
Coefficients RTD coefficients to Model 2001 coefficients
Subrange #1: 13.8033K - 273.16K
Subrange #2: 24.5561K - 273.16K
Subrange #3: 54.3584K - 273.16K
Subrange #4: 83.8058K - 273.16K
Subrange #5: 234.3156K - 302.9146K
Subrange #6: 273.15K - 1234.93K
Subrange #7: 273.15K - 933.473K
Subrange #8: 273.15K - 692.677K
Subrange #9: 273.15K - 505.078K
Subrange #10: 273.15K - 429.748K
Subrange #11: 273.15K - 302.9146K
Not applicable
A2 to A4, B2 to B4
A3 to A4, B3 to B4
No substitution needed
A5 to A4, A5 to A7, B5to B4, B5 to B7, Set C7 = 0. A5 value
entered for both A4 and A7, B5 entered for both B4 and B7.
Not applicable
No substitution needed
A8 to A7, B8 to B7, Set C7 = 0
A9 to A7, B9 to B7, Set C7 = 0
A10 to A7, B10 to B7, Set C7 = 0
A11 to A7, Set B7 = 0, C7 = 0

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