Keithley 2001 Calibration Manual

OPERATING SPEED
The following diagram illustrates the factors that determine a DMM’s reading rate.
Command
Receive and
Interpret
GPIB
Command
Function,
Speed or
Range
Change
Stored
Setup
Change
Measurement
Settle
Trigger
Link
or
Ext.
Trigger
Auto Zero
On
Auto Zero
Off
Trigger Control
Auto Zero
On
Auto Zero
Off
Measure
Engineering Units Conversion
Math, Limits Calculation
Measurement
Settle
Data
Memory
Formatting
GPIB Data
Transmission
Display
Update
Command Receive and
Interpret Speed
Function Reading Rates to
Memory (see rates for each
measurement function).
Autorange Speed (if on)
Function Change Speed
Range Change Speed
Measurement Speed
Change Time
Trigger Speed
Settling Times
(included in reading rates)
Engineering Units Conversion
Speed (included in reading
rates for multiple measure-
ments; add to total time for
single measurements only)
Math Speed (only if Math on)
Stop here for Speed to
Memory.
Data Format Speed
Data Transfer Ratess
Display Speed
Function Readin
g
Rates to GPIB
(see rates for eac
h
measurement
function).
COMMAND RECEIVE AND INTERPRET SPEED
FASTEST TYPICAL SLOWEST
Time per character 0.16 ms 0.28 ms 0.66 ms
Characters per second 6250 3751 1515
TYPICAL COMMAND TIMES Receive and Rate
Command Interpret Time (per second)
SENSE1:VOLTAGE:AC:
RESOLUTION MAXIMUM 9.4 ms 106
VOLT:AC:RES:MAX 4.1 ms 243
SENSE1:FUNC 'VOLT:AC" 6.3 ms 158
RESISTANCE:RANGE:UPPER 1E9 9.0 ms 111
STATUS:QUEUE:CLEAR 5.1 ms 196
STAT:QUE:CLE 3.1 ms 322
*TRG 1.2 ms 833
FUNCTION CHANGE SPEED
1
AUTO ZERO OFF AUTO ZERO ON
FROM TO RATE RATE
Function Function Range(s) TIME (per second) TIME (per second)
Any DCV 200mV, 2V 8.1ms 120 36 ms 27
20V 8.1ms 120 8.6ms 110
200V 24 ms 40 52 ms 19
1000V 11 ms 160 10.2ms 190
Any ACV Any 563 ms 1.8 563 ms 1.8
Any except ACI DCI 200 μ A, 2mA, 20mA 4.5ms 220 5.1ms 190
200mA, 2A 6.0ms 160 6.6ms 150
ACI Any 21.1ms 45 22 ms 45
Any ACI Any 521 ms 1.9 521 ms 1.9
Any Ohms (2-wire) 20 Ω , 200 Ω , 2k Ω , 20k Ω 6.0ms 165 34 ms 29
200k
Ω 26 ms 38 61 ms 16
2M
Ω 95 ms 10.5 425 ms 2.4
20M
Ω 265 ms 4 690 ms 1.4
200M Ω , 1G Ω 366 ms 3 5.5ms 180
Any Ohms (4-wire) 20
Ω , 200 Ω , 2k Ω , 20k Ω 12 ms 140 34.1ms 29
200k Ω 26 ms 38 60 ms 16
Any except ACI and Ohms Frequency
8
Any 61 ms 16 60 ms 17
ACI, Ohms (4-wire) Any 79 ms 12 7 5 ms 13
Ohms (2-wire) Any 418 ms 2 416 ms 2
Any RTD Temp. (2-wire) Any 6.0ms 165 33 ms 3 0
RTD Temp. (4-wire) Any 11.5ms 150 37 ms 27
TC Temp. Any 8.0 ms 125 35 ms 2 8
MEASUREMENT SPEED CHANGE TIMES
1,2
Typical delay before first reading after making a speed change.
AUTO ZERO OFF AUTO ZERO ON
FUNCTION From To Time Time
DCV, DCI, ACI Any
≤ 0.1 PLC 66 ms 44 ms
Any 1 PLC 190 ms 140 ms
Any 10 PLC 1540 ms 1195 ms
ACV Any
≤ 0.1 PLC 120 ms 100 ms
Any 1 PLC 250 ms 197 ms
Any 10 PLC 1600 ms 1250 ms
Ohms (2-wire) Any
≤ 0.1 PLC 69 ms 57 ms
Any 1 PLC 195 ms 170 ms
Any 10 PLC 1540 ms 1370 ms
Ohms (4-wire) Any
≤ 0.1 PLC 110 ms 46 ms
Any 1 PLC 240 ms 165 ms
Any 10 PLC 1590 ms 1370 ms
TC Temperature Any
≤ 0.1 PLC 80 ms 55 ms
Any 1 PLC 195 ms 170 ms
Any 10 PLC 1545 ms 1370 ms

Keithley 2001 Specifications

General

Brand	Keithley
Model	2001
Category	Multimeter
Language	English