Keithley 2100 User Manual

4-44 Return to Section Topics 2100-900-01 Rev. D / September 2011
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual
624 Unable to sense line frequency: The supplied voltage AC2 is routed through a comparator
U4 to generate a logic input signal. This test checks that the logic input from U4 to panel MCU U3
is toggling. If no logic input is detected, the instrument will assume 50Hz line operation for all future
measurements.
650 Front-End MCUs Firmware Version Error (System Error)
660 Firmware Version Error
661 External Memory Verion Error
662 Calibration Version Error
663 Scanner card Version Error
664 Temperature Version Error
665 GPIB Version Error
666 RS-232 Version Error
668 Manual Calibration Version Error
669 Self-Test Version Error
670 Command Version Error

Keithley 2100 Specifications

General

DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	100 Ω to 100 MΩ
Continuity	Yes
Diode Test	Yes
Frequency Range	3 Hz to 300 kHz
DC Voltage Accuracy	0.0035%
DC Current Range	100 µA to 10 A
DC Current Accuracy	0.05%
AC Current Range	100 µA to 10 A
Frequency Accuracy	0.01%
Capacitance Range	1 nF to 10 mF
Temperature Range	-200 °C
Connectivity	RS-232
Type	6.5-digit digital multimeter