Keithley 2001 User Manual

DC AMPS (cont’d)
SPEED AND ACCURACY
8
90 Days
ACCURACY
± (ppm of reading+ppm of range+ppm of range rms noise
9
)
1PLC 0.1PLC 0.01PLC
7
RANGE DFILT Off DFILT Off DFILT Off
200
µ A 300+25+0.3 300+50+8 300+200+80
2 mA 300+20+0.3 300+45+8 300+200+80
20 mA 300+20+0.3 300+45+8 300+200+80
200 mA 300+20+0.3 300+45+8 300+200+80
2 A 600+20+0.3 600+45+8 600+200+80
PLC = Power Line Cycle. DFILT = Digital Filter.
SETTLING CHARACTERISTICS: <500
µ s to 50ppm of step size. Reading settling
times are affected by source impedance and cable dielectric absorption
characteristics. Add 50ppm of range for first reading after range change.
MAXIMUM ALLOWABLE INPUT: 2.1A, 250V.
OVERLOAD PROTECTION: 2A fuse (250V), accessible from front (for front input)
and rear (for rear input).
AUTORANGING: Autoranges up at 105% of range, down at 10% of range.
AC AMPS
AC magnitude: RMS or Average.
ACI INPUT CHARACTERISTICS
TEMPERATURE
MAXIMUM COEFFICIENT
RMS PEAK FULL SCALE DEFAULT BURDEN ± (% of reading + % of range)/ ° C
RANGE INPUT RMS RESOLUTION RESOLUTION VOLTAGE
5
Outside TCAL ± 5 ° C
200 µ A 1 mA 210.0000 100 pA 1 nA 0.25 V 0.01 + 0.001
2 mA 10 mA 2.100000 1 nA 10 nA 0.31 V 0.01 + 0.001
20 mA 100 mA 21.00000 10 nA 100 nA 0.4 V 0.01 + 0.001
200 mA 1 A 210.0000 100 nA 1
µ A 0.5 V 0.01 + 0.001
2 A 2 A 2.100000 1
µ A 10 µ A 1.5 V 0.01 + 0.001
ACI ACCURACY
1,2
90 Days, 1 Year or 2 Years, TCAL ± 5 ° C, for 5% to 100% of range, ± (% of reading + % of range)
RANGE 20Hz–50Hz 50Hz–200Hz 200Hz–1kHz 1kHz–10kHz 10kHz–30kHz
3
30kHz–50kHz
3
50kHz–100kHz
3
200 µ A 0.35 + 0.015 0.2 + 0.015 0.4 + 0.015 0.5 + 0.015
2 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.12 + 0.015 0.25 + 0.015 0.3 + 0.015 0.5 + 0.015
20 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.12 + 0.015 0.25 + 0.015 0.3 + 0.015 0.5 + 0.015
200 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.15 + 0.015 0.5 + 0.015 1 + 0.015 3 + 0.015
2 A 0.35 + 0.015 0.2 + 0.015 0.3 + 0.015 0.45 + 0.015 1.5 + 0.015 4 + 0.015
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/AC rms).
% of Reading % of Range
rms, Average 0.05 0.1
AC CURRENT UNCERTAINTY =
± [ (% of reading) × (measured value) + (% of
range) × (range used) ] / 100.
PPM ACCURACY = (% accuracy) × 10,000.
0.015% OF RANGE = 30 counts at 5
1
⁄2 digits.
DC AMPS NOTES
1. Specifications are for 1 power line cycle, Auto Zero on, 10 reading digital filter.
2. For T
CAL ± 1 ° C, following 55 minute warm-up.
3. For TCAL ± 5 ° C, following 55 minute warm-up. Specifications include traceability to US
NIST.
4. Add 50 ppm of range for current above 0.5A for self heating.
5. For DELAY=0, digital filter off, display off. Internal trigger. Aperture is reciprocal of line
frequency. These rates are for 60Hz and (50Hz). See Operating Speed section for additional
detail.
6. Actual maximum voltage burden = (maximum voltage burden) × (I
MEASURED/IFULL SCALE).
7. In burst mode, display off. Burst mode requires Auto Zero refresh (by changing resolution
or measurement function) once every 24 hours.
8. For T
CAL ± 5 ° C, 90-day accuracy. 1-year and 2-year accuracy can be found by applying the
same speed accuracy ppm changes to the 1-year or 2-year base accuracy.
9. Typical values.
DC IN-CIRCUIT CURRENT
The DC in-circuit current measurement function allows a user to measure the
current through a wire or a circuit board trace without breaking the circuit.
When the In-Circuit Current Measurement function is selected, the 2001 will
first perform a 4-wire resistance measurement, then a voltage measurement,
and will display the calculated current.
TYPICAL RANGES:
Current: 100
µ A to 12A.
Trace Resistance: 1m
Ω to 10 Ω typical.
Voltage:
± 200mV max. across trace.
Speed: 4 measurements/second at 1 power line cycle.
Accuracy:
± (5% + 2 counts). For 1 power line cycle, Auto Zero on, 10
reading digital filter, T
CAL ± 5 ° C, after being properly zeroed.
90 days, 1 year or 2 years.
10 Ω
1Ω
100mΩ
10 mΩ
1m Ω
1m A 10mA 100mA 1A 10 A 100A10 0µA
Measured Current
Trace Resistance
Specified
Measurement
Range
MEASUREMENT RANGE CHART

Keithley 2001 Specifications

General

Brand	Keithley
Model	2001
Category	Multimeter
Language	English