Keithley 2000 Repair Manual

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
PURCHASED ITEM
SPECIFICATIONS
2000 6
1
⁄ 2 -Digit Multimeter
TRUE RMS AC VOLTAGE AND CURRENT CHARACTERISTICS
ACCURACY
1
: ±(% of reading + % of range), 23°C ±5 °C
VOLTAGE CALIBRATION 3 Hz– 10 Hz– 20 kHz– 50 kHz– 100 kHz–
RANGE RESOLUTION CYCLE 10 Hz 20 kHz 50 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
TEMPERATURE
COEFFICIENT/°C
8
0.035 + 0.003 0.005 + 0.003 0.006 + 0.005 0.01 + 0.006 0.03 + 0.01
CURRENT CALIBRATION 3 Hz– 10 Hz–
RANGE RESOLUTION CYCLE 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
ACV (all ranges), and 6
1
⁄ 2
3
2s/reading SLOW 3 Hz–300 kHz
ACI (all ranges) 6
1
⁄ 2
3
1.4 MED 30 Hz–300 kHz
6
1
⁄ 2
4
4.8 MED 30 Hz–300 kHz
6
1
⁄ 2
3
2.2 FAST 300 Hz–300 kHz
6
1
⁄ 2
4
35 FAST 300 Hz–300 kHz
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: 1MΩ ±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: 0.1Ω on all ACI ranges.
AC CMRR: >70dB with 1kΩ 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.
SPEC-2000
Rev. E
HW 8/8/01

Keithley 2000 Specifications

General

Digits	6.5
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	100 Ω to 100 MΩ
Connectivity	IEEE-488 (GPIB)
Display Type	VFD