2701 데이터 시트보기 (PDF) - Unspecified
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2701 Datasheet PDF : 10 Pages
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2700, 2701,
2750
Multimeter/Data Acquisition/
Switch Systems
DC SPEED vs. NOISE REJECTION
Rate Filter
10
50
1
Off
0.1 Off
0.01 Off
0.002 Off
Readings/s12
0.1 (0.08)
15 (12)
500 (400)
2500 (2000)
3500 (2800)
RMS Noise
10V Range
Digits 2700,2750 2701 NMRR CMRR14
6.5 <1.2 µV <2.5 µV 110 dB13 140 dB
6.5
<4 µV <6 µV 90 dB13 140 dB
5.5 <22 µV <40 µV — 80 dB
4.5 <150 µV <300 µV — 80 dB
3.5
—
<1 mV — 60 dB
DC MEASUREMENT CHARACTERISTICS
DC Volts
A-D Linearity: 2.0 ppm of reading + 1.0 ppm of range.
Input Impedance:
100mV–10V Ranges: Selectable >10GW // with <400pF or 10MW ±1%.
100V, 1000V Ranges: 10MW ±1%.
Dry Circuit: 100kW ± 1% // <1µF.
Earth Isolation: 500V peak, >10GW and <300pF any terminal to c hassis.
Input Bias Current: <75pA at 23°C.
Common Mode Current: <500nApp at 50Hz or 60Hz.
Autozero Error: Add ±(2ppm of range error + 5µV) for <10 minutes and
±1°C.
Input Protection: 1000V, all ranges. 300V with plug in modules.
Resistance
MaxIMUM 4WW Lead Resistance: 80% of range per lead (Dry Ckt mode). 5W
per lead for 1W range; 10% of range per lead for 10W, 100W, and 1kW ranges;
1kW per lead for all other ranges.
Offset Compensation: Selectable on 4WW, 1W, 10W, 100W, 1kW, and
10kW ranges.
Continuity Threshold: Adjustable 1 to 1000W.
Input Protection: 1000V, all Source Inputs, 350V Sense Inputs. 300V with
plug-in modules.
DC Current
Shunt Resistors: 100mA–3A, 0.1W. 20mA, 5W.
Input Protection: 3A, 250V fuse.
Thermocouples
Conversion: ITS-90.
Reference Junction: Internal, External, or Simulated (Fixed).
Open Circuit Check: Selectable per channel. Open >11.4kW ±200W.
AC SPECIFICATIONS1
DC Notes
1. 20% overrange except on 1000V and 3A.
2. Add the following to “ppm of range” uncertainty; 100mV 15ppm; 1V and 100V 2ppm; for Model 2750 1W and Dry Circuit
W 40ppm; 10→1MW 2ppm, for Models 2700/2701 100W 30ppm, 20mA and 1A 10ppm, 100mA 40ppm.
3. ±2% (measured with 10MW input resistance DMM, >10GW DMM on 10MW and 100MW ranges). For Dry Circuit W,
±25% with Input HI connected to Sense HI; with Sense HI disconnected add 30mV.
4. Relative to calibration accuracy.
5. For signal levels >500V, add 0.02ppm/V uncertainty for portion exceeding 500V.
6. Specifications are for 4-wire W, 1W, 10W, and 100W with offset compensation on. With 77XX plug-in modules, LSYNC
on. With offset compensation on, OPEN CKT. VOLTAGE is 12.8V. For 2-wire W add 1.5W to “ppm of range” uncertainty.
1W range is 4-wire only.
7. Must have 10% matching of lead resistance in Input HI and LO.
8. Add the following to “ppm of reading” uncertainty when using plug in modules:
10 kW
100 kW
1 MW
10 MW 100 MW
All Modules:
220 ppm 2200 ppm
7701, 7703, 7707, 7709 Modules:
10 ppm
100 ppm 1000 ppm
1%
10%
7706, 7708, 7710 Modules:
5 ppm
50 ppm
500 ppm 5000 ppm
5%
7710 Module 23°C ±5°C:
11 ppm
110 ppm 1100 ppm
1.1%
11%
9. Add 1.5V when used with plug in modules.
10. For RATIO, DCV only. For AVERAGE, DCV, and Thermocouples only. Available with plug in modules only.
11. Add 6µV to “of range” uncertainty when using Models 7701, 7703, and 7707, and 3µV for Models 7706 and 7709.
12. Auto zero off.
13. For LSYNC On, line frequency ±0.1 %. For LSYNC Off, use 60dB for ≥ 1PLC.
14. For 1kW unbalance in LO lead. AC CMRR is 70dB.
15. Speeds are for 60Hz (50Hz) operation using factory defaults operating conditions (*RST). Autorange off, Display off,
Limits off, Trigger delay = 0.
16. Speeds include measurements and binary data transfer out the GPIB or ASCII data transfer for Ethernet and RS-232
(reading element only).
17. Sample count = 1000, auto zero off (into memory buffer).
18. Auto zero off, NPLC = 0.01 (Models 2700 and 2750), NPLC = 0.002 (Model 2701).
19. Additional Uncertainty:
Plug-In Modules
Front Terminals
7709
7701, 7703, 7707 7700, 7708, 7706
Simulated Simulated Simulated
7710 Using Using
Type Range Ref. Junction Ref. Junction Ref. Junction
CJC
CJC
J –200 to 0°C
0.1
0.1
0.3
0.8
1.6
K –200 to 0°C
0.2
0.2
0.4
0.8
1.6
N –200 to 0°C
0.3
0.3
0.6
0.8
1.6
T –200 to 0°C
0.2
0.1
0.4
0.8
1.6
E –200 to 0°C
–
0.1
0.3
0.8
1.6
R 0 to +400°C
0.4
0.6
1.2
0.5
1.0
S 0 to +400°C
0.4
0.6
1.2
0.5
1.0
B +350 to +1100°C
0.8
0.3
1.7
0.5
1.0
20. For lead resistance >0W, add the following uncertainty/W for measurement temperatures of:
2.2 kW (44004)
5.0 kW (44007)
10 kW (44006)
70°–100°C
0.22°C
0.10°C
0.04°C
100°–150°C
1.11°C
0.46°C
0.19°C
21. For 4-wire W only, offset compensation on, LSYNC on.
22. For Dry Circuit 1kW range, 2 readings/s max.
23. For 2750 Front Inputs, add the following to Temperature Coefficient “ppm of reading” uncertainty: 1MW 25ppm, 10MW
250ppm, 100MW 2500ppm. Operating environment specified for 0°C to 50°C and 50% RH at 35°C.
24. Model 2750 only.
25. Front panel resolution is limited to 0.1W.
Function
Voltage 2
Range
100.0000 mV
1.000000 V
10.00000 V
100.0000 V
750.000 V
Resolution
0.1 µV
1.0 µV
10 µV
100 µV
1.0 µV
Current 2
1.000000 A
3.00000 A 14
1.0 µA
10 µA
Frequency 4
and Period
100 mV to 750 V
0.333 ppm
3.33 ppm
33.3 ppm
Calibration Cycle
90 Days (all ranges)
3 Hz–10 Hz
0.35 + 0.03
Accuracy: ±(% of reading + % of range), 23°C ± 5°C
10 Hz–20 kHz 20 kHz–50 kHz 50 kHz–100 kHz 100 kHz–300 kHz
0.05 + 0.03
0.11 + 0.05
0.6 + 0.08
4.0 + 0.5
1 Year (all ranges)
0.35 + 0.03
0.06 + 0.03
0.12 + 0.05
(Temp. Coeff.)/°C3
90 Day/1 Year
(Temp. Coeff.)/°C3
90 Day/1 Year
0.035 + 0.003
0.005 + 0.003
3 Hz–10 Hz
0.30 + 0.04
0.35 + 0.06
0.035 + 0.006
10 Hz–3 kHz
0.10 + 0.04
0.16 + 0.06
0.015 + 0.006
(3 Hz–500 kHz) (333 ms–2 µs)
100 ppm + 0.333 ppm (SLOW, 1s gate)
100 ppm + 3.33 ppm (MED, 100ms gate)
100 ppm + 33.3 ppm (FAST, 10ms gate)
0.006 + 0.005
3 kHz–5 kHz
0.14 + 0.04
0.18 + 0.06
0.6 + 0.08
0.01 + 0.006
4.0 + 0.5
0.03 + 0.01
1. 888 .KEITHLEY (U.S. only)
www.keithley.com
A Greater Measure of Confidence
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