Keithley 2001 Calibration Manual

Calibration Command Reference
3-8
:STEP?
(CALibration:PROTected:LLEVel):STEP?
Purpose To request current low-level calibration step.
Format :cal:prot:llev:step?
Response 1 20V AC @ 1kHz
2 20V AC @ 30kHz
3 200V AC @ 1kHz
4 200V AC @ 30kHz
5 1.5V AC @ 1kHz
6 200mV AC @ 1kHz
7 5mV AC @ 100kHz
8 0.5mV AC @ 1kHz
9+2V DC
10 -2V DC
11 0V DC
12 20mA @ 1kHz
13 +200mA DC
14 +2A DC
15 2V AC @ 1Hz
Description The :STEP? query requests the present low-level calibration step.
Programming example 10 OUTPUT 716; “:CAL:PROT:LLEV:STEP ?” ! Request step.
20 ENTER 716;S ! Input step.
30 PRINT S ! Display step.
:CALCulate
(:CALibration:PROTected:LLEVel):CALCulate
Purpose To program the Model 2001 to calculate new low-level calibration constants.
Format :cal:prot:llev:calc
Parameters None
Description The :CALCulate command causes the Model 2001 to calculate new low-level calibration
constants based on parameters determined during the calibration procedure. This command
should be sent after completing all low-level calibration steps, but before saving calibration
constants in EEPROM with the :SAVE command.
Programming example 10 OUTPUT 716; “:CAL:PROT:LLEV:CALC” ! Calculate constants.

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