Keithley 2001 User Manual

Front Panel Operation
3-51
RESLN
The RESLN parameter sets the display resolution. It is dis-
cussed in paragraph 3.4.1, DC and AC voltage. Only the dif-
ferences for temperature are noted here.
Resolution for temperature is not expressed in number of
digits, but in fractions of a degree, ranging from 1° to 0.001°.
The accuracy of RTD and thermocouple measurements are
rated at different resolutions; refer to the specifications in
Appendix A for details.
If the temperature resolution is AUTO, the resolution is
forced to match the sensor type. Refer to Table 3-26 for the
resolution associated with the various sensors.
Multiple displays
The available multiple displays for temperature depend on
the presently selected sensor type, except for the multiple
display that shows temperature in three different units:
+0000.0 °C
+0000.0 °F +0000.0 K
RTD measurements have a multiple display for the resis-
tance of the RTD, such as:
RTD Resistance = +0.0000 Ω
Thermocouple measurements have multiple displays for the
thermocouple voltage and reference junction temperature.
Sample displays are:
Thermocouple Voltage = 0.0000mV
Reference junction = 00.0 °C
Note that the reference junction temperature is shown in the
units selected by the SET TEMP UNITS menu. The display
of two blinking question marks at the right of the reference
junction temperature indicates an overflow of the reference
junction measurement. Thermocouple measurements will be
made normally using the existing reference temperature
value.
Table 3-26
Temperature auto resolution
Sensor
Resolution
Degree Digits
RTDs 2-, 3-, or 4-wire 0.01 5.5d
Thermocouples J, K, T, E 0.1 4.5d
Thermocouples R, S, B, N 1 3.5d
Note: If the resolution is AUTO and the integration time SET-BY-
RSLN, the integration time will be 1.0 PLC.

Keithley 2001 Specifications

General

Brand	Keithley
Model	2001
Category	Multimeter
Language	English