Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY
www.keithley.com
Specifications are subject to change without notice.
Page 10 of 14 SPEC-2002 Rev. H / February 2009
Model 2002
Multimeter Specifications
AC COUPLING
For AC only coupling, add the following % of reading:
20–50Hz 50–100Hz 100–200Hz
rms, Average 0.55 0.09 0.015
AC+DC COUPLING
For DC>20% of AC rms voltage, apply the following additional uncertainty, multiplied by the ratio (DC/total rms).
% of Reading % of Range
rms, Average 0.05 0.1
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
AVERAGE ACI MEASUREMENT
rms specifications apply for 10% to 100% of range.
Settling Characteristics: <300ms to 1% of step change
<450ms to 0.1% of step change
<500ms to 0.01% of step change
Autoranging: Autoranges up at 105% of range, down at 10% of range.
FREQUENCY COUNTER
FREQUENCY/PERIOD INPUT CHARACTERISTICS AND ACCURACY 90 Days, 1 Year, or 2 Years
Minimum Signal Level
44
Frequency
Range
43
Period
Range Resolution
1Hz–1MHz 1–5MHz 5–15MHz
Maximum
Input
Trigger
Level
Accuracy
±(% of reading)
AC Voltage Input 1Hz–15 MHz 67 ns – 1 s 5 digits 60 mV 60 mV 400 mV 1100 V pk
43
0–600V 0.03
AC Current Input 1Hz– 1 MHz 1 µs – 1 s 5 digits 150 µA 1 A pk 0–600mA 0.03
Time Base: 7.68MHz ± 0.01%, 0°C to 55°C.
Reading Time: 420ms maximum.
Voltage Input Impedance: 1M ± 2% with <140pF.
Trigger Level Adjustment: Trigger level is adjustable in 0.5% of range steps to ±60% of range in real-time using the up and down range
buttons.
Frequency Ranging: Autoranging from Hz to MHz.
Frequency Coupling: AC only.
TEMPERATURE (RTD)
4-Wire Accuracy
45
Range Resolution
24 Hours
46
90 Days
7
1 Year
7
2 Years
7
–100° to +100°C 0.001°C ±0.016°C ±0.020°C ±0.021°C ±0.022°C
–200° to +630°C 0.001°C ±0.061°C ±0.066°C ±0.068°C ±0.070°C
–148° to +212°F 0.001°F ±0.029°F ±0.036°F ±0.038°F ±0.040°F
–328° to +1166°F 0.001°F ±0.110°F ±0.119°F ±0.122°F ±0.126°F
RTD Type: 100 platinum, DIN 43760, 4-wire. ITS-90 (PT100, D100, F100) and IPTS-68 (PT385, PT3916).
Sensor Current: 960µA (pulsed).
Temperature Coefficient: ±0.001°C/°C or ±0.002°F/°C outside T
CAL
±5°C.
Maximum Source HI Lead Resistance: 200.
Maximum Source LO Lead Resistance: 100.
43
Subject to 2 × 10
7
V·Hz product (for inputs above 20V).
44
Valid for the lowest range. For each range increase, multiply these numbers by 10.
45
Specifications are for 10 power line cycles, autozero on, 10 reading repeat digital filter, 4-wire mode. Exclusive of RTD probe errors.
46
For T
CAL
± 1°C, following 4-hour warm-up.
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