Keithley 2002 Calibration Manual

A-6 Specifications
AC Volts (cont’d)
AC CouplingACV Crest Factor Measurement
11
Crest Factor = Peak AC / rms AC.
Crest Factor Resolution 3 digits.
Crest Factor Accuracy Peak AC uncertainty + AC
normal mode rms
uncertainty.
Measurement Time 100ms plus rms
measurement time.
Input Characteristics Same as ACV input.
Crest Factor
Frequency Range 20Hz – 1MHz.
Crest Factor Display Access as multiple display
on AC volts.
For AC only coupling, add the following % of reading:
1–10Hz 10–20Hz 20–50Hz 50–100Hz 100–200Hz
Normal Mode (rms, average) — — 0.41 0.07 0.015
Low Frequency Mode (rms) 0.1 0.01 0 0 0
For low frequency mode below 200Hz, specifications apply for sine wave inputs only.
AC+DC Coupling
For DC >20% of AC rms voltage, apply the following additional
uncertainty, multiplied by the ratio (DC/total rms). Applies to
rms and average measurements.
Range % of Reading % of Range
200mV, 20V 0.05 0.1
2V, 200V, 750V 0.07 0.01
1 Specifications apply for sinewave input, AC + DC coupling,
1 power line cycle, autozero on, digital filter off, following
55-minute warm-up.
2 Temperature coefficient applies to rms and average
readings. For frequencies above 100kHz, add 0.01% of
reading/°C to temperature coefficient.
3 For 1% to 5% of range below 750V range, and for 1% to 7%
of 750V range, add 0.01% of range uncertainty. For inputs
from 200kHz to 2MHz, specifications apply above 10% of
range.
4 Add 0.001% of reading × (V
IN/100V)
2
additional uncertainty
above 100V rms.
5 Typical values.
6 For on-scale readings, no trigger delays, internal trigger,
digital filter off, normal autozero, display off, SREAL
format. These rates are for 60Hz and (50Hz). Rates for
AC Volts Notes
400Hz equal those for 50Hz. Applies for normal rms and
average mode. Low frequency rms mode rate is typically
0.2 readings per second.
7 For overrange readings 200–300% of range, add 0.1% of
reading uncertainty. For 300–400% of range, add 0.2% of
reading uncertainty.
8 In burst mode, display off. Burst mode requires autozero
refresh (by changing resolution or measurement function)
once every 24 hours.
9 AC peak specifications assume AC + DC coupling for fre-
quencies below 200Hz.
10 Specifications apply for 10-reading digital filter. If no
filter is used, add 0.25% of range typical uncertainty.
11 Subject to peak input voltage specification.
12 Using Internal Buffer.
Settling Characteristics Normal Mode (rms, avg.) <300ms to 1% of step change
<450ms to 0.1% of step change
<500ms to 0.01% of step change
Low Frequency Mode (rms) <5s to 0.1% of final value
Common Mode Rejection For 1kΩ imbalance in either lead: >60dB for line frequency ±0.1%.
Maximum Volt·Hz Product 2 × 10
7
V·Hz (for inputs above 20V).
Autoranging Autoranges up at 105% of range, down at 10% of range.
Default Measurement
Resolution 4 digits.
Non-Repetitive Peak 10% of range per µs typical slew rate for single spikes.
Peak Width Specifications apply for all peaks ≥1µs.
Peak Measurement Window 100ms per reading.
Maximum Input ±1100V peak, 2×10
7
V·Hz (for inputs above 20V).
ACV Peak Value Measurement
10
Repetitive Peak Accuracy, ±(% of reading+% of range), 90 Days, 1 Year or 2 Years, TCAL ±5°C
Temperature Coefficient
20Hz– 1kHz– 10kHz– 30kHz– 50kHz– 100kHz– 300kHz– 500kHz– 750kHz–
±(% of reading+% of range)/°C
Range 1kHz
9
10kHz 30kHz 50kHz 100kHz 300kHz 500kHz 750kHz 1MHz Outside TCAL ±5°C
200 mV 0.08+0.7 0.09+0.7 0.1 +0.7 0.15+0.7 0.25+0.7 1.0+0.7 2.5+0.7 5.5+0.7 9+0.7 0.002 + 0.03
2 V 0.08+0.3 0.09+0.3 0.1 +0.3 0.15+0.3 0.25+0.3 1.0+0.3 2.5+0.3 5.5+0.3 9+0.3 0.002 + 0.03
20 V 0.1 +0.7 0.11+0.7 0.14+0.7 0.19+0.7 0.25+0.7 1.0+0.7 2.5+0.7 5.5+0.7 9+0.7 0.004 + 0.03
200 V
4
0.1 +0.3 0.11+0.3 0.14+0.3 0.19+0.3 0.25+0.3 1.0+0.3
5
2.5+0.3
5
5.5+0.3
5
9+0.3
5
0.004 + 0.03
750 V
4
0.12+0.6 0.16+0.6 0.2 +0.6 0.25+0.6
5
0.5 +0.6
5
0.01 + 0.02
Valid % of Range
7
10–400% 10–400% 10–400% 10–350% 10–350% 10–250% 10–150% 10–100% 7.5–75%
Average ACV Measurement
Normal mode rms specifications apply from 10% to 100% of
range, for 20Hz–1MHz. Add 0.025% of range uncertainty for
50kHz–100kHz, 0.05% of range uncertainty for 100kHz–
200kHz, and 0.5% of range uncertainty for 200kHz–1MHz.
High Crest Factor Additional Error ±(% of reading)
Applies to rms measurements.
Crest Factor 1 – 2 2 – 3 3 – 4 4 – 5
Additional Error 0 0.1 0.2 0.4

Keithley 2002 Specifications

General

Resolution	8.5 digits
DC Voltage Accuracy	±0.0006%
Maximum DC Voltage	1000 V
Maximum AC Voltage	750 V
Maximum DC Current	3 A
Maximum AC Current	3 A
Connectivity	GPIB, RS-232
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	10 Ω to 1 GΩ
Model	2002
Category	Multimeter
Interface	GPIB, RS-232
AC Current Accuracy	±0.1%
Frequency Range	0.1Hz to 300kHz
Display	VFD
Type	Digital
Power Supply	100-240V AC, 50/60Hz
Current Range (DC)	100 μA to 3 A
Current Accuracy (DC)	±0.01%
Current Range (AC)	100 μA to 3 A
Current Accuracy (AC)	±0.1%
DC Current Range	100 μA to 3 A
AC Current Range	100 μA to 3 A