Keithley 2000, Руководство пользователя, Страница: 218 / 280

Keithley Instruments, Inc.
Cleveland, Ohio 44139
DRN.
CKD.
APP.
DATE
DATE
DATE
PART NUMBER
LTR REVISIONS APP. DATE
FORM 28777A-SBG
BRUNING 40-21 62198-SBG
SPECIFICATIONS
JMM 8/8/01
Rev. E
SPEC-2000
2000 6½-Digit Multimeter Specifications
TRUE RMS AC VOLTAGE AND CURRENT CHARACTERISTICS
ACCURACY
1
: ±(% of r % of range), 23°C ±5 °C
Voltage Range Resolution Calibration Cycle 3 Hz-10 Hz 10 Hz-20 kHz 20 kHz-50 kHz 50 kHz-100 kHz 100 kHz-300 kHz
100.0000 mV 0.1 µV
1.000000 V 1.0 µV 90 Days 0.35 + 0.03 0.05 + 0.03 0.11 + 0.05 0.60 + 0.08 4 + 0.5
10.00000 V 10 µV
100.0000 V 100 µV 1 Year 0.35 + 0.03 0.06 + 0.03 0.12 + 0.05 0.60 + 0.08 4 + 0.5
750.000 V 1 mV
0.035 + 0.003 0.005 + 0.003 0.006 + 0.005 0.01 + 0.006 0.03 + 0.01
Temperature
Coefficient/°C
8
Current Range Resolution Calibration Cycle 3 Hz-10 Hz 10 Hz-5 kHz
1.000000 A 1 µA
90 Day/1 Year
0.30 + 0.04 0.10 + 0.04
3.00000
9
A 10 µA
90 Day/1 Year
0.35 + 0.06 0.15 + 0.06
Temperature
Coefficient/°C
8
0.035 + 0.006 0.015 + 0.006
High Crest Factor Additional Error ±(% of reading)
7
CREST FACTOR:
1–2 2–3 3–4 4–5
ADDITIONAL ERROR:
0.05 0.15 0.30 0.40
AC Operating Characteristics
2
Function Digits Readings/s Rate Bandwidth
6½
3
2s/reading SLOW 3 Hz-300kHz
6½
3
1.4 MED 30 Hz-300kHz
6½
4
4.8 MED 30 Hz-300kHz
6½
3
2.2 FAST 300 Hz-300kHz
ACV
(all ranges),
and ACI
(all ranges)
6½
4
35 FAST 300 Hz-300kHz
Additional Low Frequency Errors ±(% of reading)
SLOW MED FAST
20Hz - 30Hz 0 0.3 —
30Hz - 50Hz 0 0 —
50Hz - 100Hz 0 0 1.0
100Hz - 200Hz 0 0 0.18
200Hz - 300Hz 0 0 0.10
> 300Hz 0 0 0
AC System Speeds
2, 5
FUNCTION/RANGE CHANGE
6
:
4/s.
AUTORANGE TIME:
<3 s.
ASCII READINGS TO RS-232 (19.2k BAUD)
4
:
50/s.
MAX. INTERNAL TRIGGER RATE
4
:
300/s.
MAX. EXTERNAL TRIGGER RATE
4
:
300/s.
AC General
INPUT IMPEDANCE:
1M
Ω
±2% paralleled by <100pF.
ACV INPUT PROTECTION:
1000Vp.
MAXIMUM DCV:
400V on any ACV range.
ACI INPUT PROTECTION:
3A, 250V fuse.
BURDEN VOLTAGE:
1A Range: <0.3V rms. 3A Range: <1V rms.
SHUNT RESISTOR:
0.1
Ω
on all ACI ranges.
AC CMRR:
>70dB with 1k
Ω
in LO lead.
MAXIMUM CREST FACTOR:
5 at full scale.
VOLT HERTZ PRODUCT:
<8 × 10
7
V·Hz.
OVERRANGE:
120% of range except on 750V and 3A ranges.
AC Notes
1
Specifications are for SLOW rate and sinewave inputs >5% of range.
2
Speeds are for 60 Hz operation using factory default operating
conditions (*RST). Auto zero off, Auto range off, Display off,
includes measurement and binary data transfer out the GPIB.
3
0.01% of step settling error. Trigger delay = 400ms.
4
Trigger delay = 0.
5
DETector:BANDwidth 300, NPLC = 0.01.
6
Maximum useful limit with trigger delay = 175ms.
7
Applies to non-sinewaves >5Hz.
8
Applies to 0°–18°C and 28°–50°C.
9
For signal levels > 2.2A, add additional 0.4% to “of reading”
uncertainty.