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
DC CHARACTERISTICS
CONDITIONS: MED (1 PLC)
1
or SLOW (10 PLC) ACCURACY: ±(ppm of reading + ppm of range)
or MED (1 PLC) with filter of 10 (ppm = parts per million) (e.g., 10ppm = 0.001%)
TEMPERATURE
TEST CURRENT COEFFICIENT
RESO- OR BURDEN INPUT 24 HOUR
14
90 DAY 1 YEAR 0°–18°C &
FUNCTION RANGE LUTION VOLTAGE (±5%) RESISTANCE 23°C ± 1° 23°C ± 5° 23°C ± 5° 28°–50°C
Voltage 100.0000 mV 0.1 µV > 10 GΩ 30 + 30 40 + 35 50 + 35 2 + 6
1.000000 V 1.0 µV > 10 GΩ 15 + 6 25 + 7 30 + 7 2 + 1
10.00000 V 10 µV > 10 GΩ 15 + 4 20 + 5 30 + 5 2 + 1
100.0000 V 100 µV 10 MΩ ±1% 15 + 6 30 + 6 45 + 6 5 + 1
1000.000 V
9
1 mV 10 MΩ ±1% 20 + 6 35 + 6 45 + 6 5 + 1
Resistance
15
100.0000 Ω 100 µΩ 1 mA 30 + 30 80 + 40 100 + 40 8 + 6
1.000000 kΩ 1mΩ 1 mA 20 + 6 80 + 10 100 + 10 8 + 1
10.00000 kΩ 10mΩ 100 µA 20 + 6 80 + 10 100 + 10 8 + 1
100.0000 kΩ 100mΩ 10 µA 20 + 6 80 + 10 100 + 10 8 + 1
1.000000 MΩ
16
1 Ω 10 µA 20 + 6 80 + 10 100 + 10 8 + 1
10.00000 MΩ
11, 16
10 Ω 700 nA // 10MΩ 150 + 6 200 + 10 400 + 10 70 + 1
100.0000 MΩ
11, 16
100 Ω 700 nA // 10MΩ 800 + 30 1500 + 30 1500 + 30 385 + 1
Current 10.00000 mA 10 nA < 0.15 V 60 + 30 300 + 80 500 + 80 50 + 5
100.0000 mA 100 nA < 0.03 V 100 + 300 300 + 800 500 + 800 50 + 50
1.000000 A 1 µA < 0.3 V 200 + 30 500 + 80 800 + 80 50 + 5
3.00000 A 10 µA < 1 V 1000 + 15 1200 + 40 1200 + 40 50 + 5
Continuity 2W 1 kΩ 100mΩ 1 mA 40 + 100 100 + 100 120 + 100 8 + 1
Diode Test 3.00000 V 10 µV 1 mA 20 + 6 30 + 7 40 + 7 8 + 1
10.00000 V 10 µV 100 µA 20 + 6 30 + 7 40 + 7 8 + 1
10.00000 V 10 µV 10 µA 20 + 6 30 + 7 40 + 7 8 + 1
DC OPERATING CHARACTERISTICS
2
FUNCTION DIGITS READINGS/s PLCs
8
DCV (all ranges), 6
1
⁄ 2
3, 4
510
DCI (all ranges), and 6
1
⁄ 2
3, 7
30 1
Ohms (<10M range) 6
1
⁄ 2
3, 5
50 1
5
1
⁄
2
3, 5
270 0.1
5
1
⁄ 2
5
500 0.1
5
1
⁄ 2
5
1000 0.04
4
1
⁄
2
5
2000 0.01
DC SYSTEM SPEEDS
2, 6
RANGE CHANGE
3
: 50/s.
FUNCTION CHANGE
3
: 45/s.
AUTORANGE TIME
3, 10
: <30 ms.
ASCII READINGS TO RS-232 (19.2K BAUD): 55/s.
MAX. INTERNAL TRIGGER RATE: 2000/s.
MAX. EXTERNAL TRIGGER RATE: 500/s.
DC GENERAL
LINEARITY OF 10VDC RANGE: ±(2ppm of reading + 1ppm of range).
DCV, Ω, TEMPERATURE, CONTINUITY, DIODE TEST INPUT
PROTECTION: 1000V, all ranges.
MAXIMUM 4WΩ LEAD RESISTANCE: 10% of range per lead for 100Ω
and 1kΩ ranges; 1kΩ per lead for all other ranges.
DC CURRENT INPUT PROTECTION: 3A, 250V fuse.
SHUNT RESISTOR: 0.1Ω for 3A, 1A and 100mA ranges. 10Ω for 10mA
range.
CONTINUITY THRESHOLD: Adjustable 1Ω to 1000Ω.
AUTOZERO OFF ERROR: Add ±(2ppm of range error + 5µV) for <10 min-
utes and ±1°C change.
OVERRANGE: 120% of range except on 1000V, 3A and Diode.
SPEED AND NOISE REJECTION
RMS NOISE
RATE READINGS/S DIGITS 10V RANGE NMRR
12
CMRR
13
10 PLC 5 6
1
⁄ 2
< 1.5 µV 60 dB 140 dB
1 PLC 50 6
1
⁄
2 < 4 µV 60 dB 140 dB
0.1 PLC 500 5
1
⁄ 2
< 22 µV — 80 dB
0.01 PLC 2000 4
1
⁄ 2 < 150 µV — 80 dB
DC Notes
1
Add the following to “ppm of range” uncertainty:1V and 100V, 2ppm; 100mV, 15ppm; 100
Ω, 15ppm; <1MΩ,
2ppm; 10mA and 1A, 10ppm; 100mA, 40ppm.
2
Speeds are for 60 Hz operation using factory default operating conditions (*RST). Autorange off, Display off,
Trigger delay = 0.
3
Speeds include measurement and binary data transfer out the GPIB.
4
Auto zero off.
5
Sample count = 1024, auto zero off.
6
Auto zero off, NPLC = 0.01.
7
Ohms = 24 readings/second.
8
1 PLC = 16.67ms @ 60Hz, 20ms @ 50Hz/400Hz. The frequency is automatically determined at power up.
9
For signal levels >500V, add 0.02ppm/V uncertainty for the portion exceeding 500V.
10
Add 120ms for ohms.
11
Must have 10% matching of lead resistance in Input HI and LO.
12
For line frequency ±0.1%.
13
For 1kΩ unbalance in LO lead.
14
Relative to calibration accuracy.
15
Specifications are for 4-wire ohms. For 2-wire ohms, add 1Ω additional uncertainty.
16
For rear inputs, add the following to Temperature Coefficient “ppm of reading” uncertainty: 10MΩ 70ppm,
100MΩ 385ppm. Operating environment specified for 0° to 50°C and 50% RH at 35°C.
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