技术资料.pdf - 第34页

33

4. With only *non-hazardous voltages in the overall 34980A and all installed modules use either

female D-Sub output connectors Keysight Part Number DB-50(F) 1253-5854 or DB-78(F) 1253-

5007, or male D-Sub output connectors Keysight Part Number DB-50(M) 1253-5853 or DB-78(M)

1253-6006.

5. Install overcurrent protection with devices rated or the snubber circuits to limit the current according

to the 34959A Current Limiting Graph located in the User’s Guide.

6. Install only Keysight supplied relays 0490-1954 when connecting to the Analog Bus.

*Any voltages greater than 30Vrms, 42.4 Vpeak and 60Vdc are considered hazardous (IEC 61010-1).

Available space for internal board/components: 5.4 x 7.5 x either 0.9 inches in height without PC board or

0.7 inches high with a PC board.

Figure 19. 34959A breadboard component module

34

34980A System Specifications and

Characteristics

DMM accuracy ± (% of reading + % of range)

Includes measurement error, switching error, and transducer conversion error

1

.

Range

4

, Frequency, etc.

24 hour

2,3

Tcal ± 1

o

C

90 days

Tcal ± 5

o

C

1 year

Tcal ± 5

o

C

Temperature

coefficient/

o

C >Tcal ± 5

o

C

DC voltage (with 34921A / 22A / 31A / 32A)

10,11

| Input impedance = Hi-Z | 10 V range and below

100.0000 mV

1.000000 V

10.00000 V

100.0000 V

300.0000 V

0.0030 + 0.0035

0.0020 + 0.0006

0.0015 + 0.0004

0.003 + 0.0006

0.003 + 0.0020

0.0040 + 0.0040

0.0030 + 0.0007

0.0020 + 0.0005

0.0045 + 0.0006

0.0045 + 0.0030

0.0050 + 0.0040

0.0040 + 0.0007

0.0035 + 0.0005

0.0055 + 0.0006

0.0055 + 0.0030

0.0005 + 0.0005

0.0005 + 0.0001

0.0005 + 0.0003

True RMS AC voltage

5

| All ranges from 100.0000 mV to 100.0000 V

3 Hz-5 Hz

5 Hz-10 Hz

10 Hz-20 kHz

20 kHz-50 kHz

50 kHz-100 kHz

100 kHz-300 kHz

6

1.00 + 0.03

0.35 + 0.03

0.04 + 0.03

0.10 + 0.05

0.55 + 0.08

4.00 + 0.50

1.00 + 0.04

0.35 + 0.04

0.05 + 0.04

0.11 + 0.05

0.60 + 0.08

4.00 + 0.50

1.00 + 0.04

0.35 + 0.04

0.06 + 0.04

0.12 + 0.05

0.60 + 0.08

4.00 + 0.50

0.100 + 0.004

0.035 + 0.004

0.005 + 0.004

0.011 + 0.005

0.060 + 0.008

0.20 + 0.02

True RMS AC voltage

5

| 300.0000 V range

3 Hz-5 Hz

5 Hz-10 Hz

10 Hz-20 kHz

20 kHz-50 kHz

50 kHz-100 kHz

100 kHz-300 kHz

6

1.00 + 0.05

0.35 + 0.05

0.04 + 0.05

0.10 + 0.10

0.55 + 0.20

4.00 + 1.25

1.00 + 0.08

0.35 + 0.08

0.05 + 0.08

0.11 + 0.12

0.60 + 0.20

4.00 + 1.25

1.00 + 0.08

0.35 + 0.08

0.06 + 0.08

0.12 + 0.12

0.60 + 0.20

4.00 + 1.25

0.100 + 0.008

0.035 + 0.008

0.005 + 0.008

0.011 + 0.012

0.060 + 0.020

0.20 + 0.05

Resistance

7

100.0000 Ω , 1 mA

1.000000 kΩ, 1 mA

10.00000 kΩ, 100 µA

100.0000 kΩ, 10 µA

1.000000 MΩ, 5.0 µA

10.00000 MΩ, 500 nA

100.0000 MΩ, 500 nA / 10 MΩ

0.0030 + 0.0035

0.0020 + 0.0006

0.0020 + 0.0005

0.002 + 0.001

0.015 + 0.001

0.300 + 0.010

0.008 + 0.004

0.008 + 0.001

0.020 + 0.001

0.800 + 0.010

0.010 + 0.004

0.010 + 0.001

0.040 + 0.001

0.800 + 0.010

0.0006 + 0.0005 0.0006 +

0.0001 0.0006 + 0.0001

0.0006 + 0.0001 0.0010 +

0.0002 0.0030 + 0.0004

0.1500 + 0.0002

Frequency and period

8

100 mV to 300V range:

3 Hz-5 Hz

5 Hz-10 Hz

10 Hz-40 Hz

40 Hz-300 kHz

0.10

0.05

0.03

0.006

0.10

0.05

0.03

0.01

0.10

0.05

0.03

0.01

0.005

0.001

DC current (34921A only)

10.00000 mA, < 0.1V, burden typ

100.0000 mA, < 0.6V

1.000000 A, < 2 V

0.005 + 0.010 0.010 +

0.004 0.050 + 0.006

0.030 + 0.020 0.030 +

0.005 0.080 + 0.010

0.050 + 0.020 0.050 +

0.005 0.100 + 0.010

0.002 + 0.0020 0.002 +

0.0005 0.005 + 0.0010

True RMS AC current (34921A only)

10.00000 mA and

5

1.0 A

3 Hz-5 Hz

5 Hz-10 Hz

10 Hz-5 kHz

100.0000 mA

9

3 Hz-5 Hz

5 Hz-10 Hz

10 Hz-5 kHz

1.00 + 0.04

0.30 + 0.04

0.10 + 0.04

1.00 + 0.5

0.30 + 0.5

0.10 + 0.5

1.00 + 0.04

0.30 + 0.04

0.10 + 0.04

1.00 + 0.5

0.30 + 0.5

0.10 + 0.5

1.00 + 0.04

0.30 + 0.04

0.10 + 0.04

1.00 + 0.5

0.30 + 0.5

0.10 + 0.5

0.100 + 0.006

0.035 + 0.006

0.015 + 0.006

0.100 + 0.006

0.035 + 0.006

0.015 + 0.006

Note:

35

1. One hour warm-up and a fixed configuration with slow AC filter, sine wave input, and 6½ digits. Temperature within ±

5°C of temperature at calibration (Tcal between 18-28°C)

2. 90 minute warm-up and a fixed configuration and 6½ digits. Temperature within ± 1°C of temperature at calibration

(Tcal between 18-28°C)

3. Relative to calibration standards

4. 20% over range on all ranges except 300VDC and AC ranges and 1 ADC and AC current ranges

5. For sine wave input > 5% of range; for inputs from 1% to 5% of range and < 50 kHz add 0.1% of range additional

error; for AC filter slow

6. For sine wave input >5% of range, limited to 1 x 10

8

volt-hertz. Typically, 30% of reading error at 1 MHz.

7. Accuracy for 4-wire ohms. Add 4 ohms uncertainty (typical) for 2-wire ohms function due to conductor and contact

resistance variability in the DMM. The 2-wire resistance accuracy can be improved by measuring a short on each

channel and using the built-in y = Mx + b scaling function. See User Guide, Chapter 3. The series resistance of the

34923/24/25/33/34 limits the use of the 100 ohms resistance range. Keysight recommends the use of 4-wire ohms for

resistance measurements. For high accuracy voltage measurements, select the DMM input resistance setting of > 10

G ohms to minimize the impact of relay contact resistance.

8. For inputs >100 mV; for inputs 10 mV to 100 mV multiply % of reading error X 10; for 1 sec aperture (6 1/2 digits)

9. Specified only for inputs > 10 mA. For AC filter slow

10. Add 50 uV error for 34923A/24A/33A and 7 μV error for the 34925A

11. Voltage measurements using Fixed-Z input impedance for the 100 V and 300 V ranges.

Additional low frequency error for ACV, ACI (% of reading)

Frequency

AC Filter Slow

AC Filter Medium

AC Filter Fast

10 Hz – 20 Hz

20 Hz – 40 Hz

40 Hz – 100 Hz

100 Hz -200 Hz

200 Hz – 1 kHz

> 1 kHz

0

0.74

0.22

0.06

0.01

0

-

0.73

0.22

0.18

0

Additional error for frequency, Period (% of reading)

Aperture (Digits)

Frequency 1 second (6½ digits) seconds (5½ digits) 0.01 seconds (4½ digits)

3 Hz – 5 Hz

5 Hz – 10 Hz

10 Hz – 40 Hz

40 Hz – 100 Hz

100 Hz – 300 Hz

300 Hz – 1 kHz

> 1 kHz

0

0.12

0.17

0.2

0.06

0.03

0.01

0

0.12

0.17

0.2

0.21

0.07

0.02

Temperature measurement accuracy

Temperature 1-year

accuracy

Type Best Range

1

Extended Range

1

Temperature

coefficient/

o

C

Thermocouple

(34921A only, includes

cold junction accuracy

on terminal block)

B

E

J

K

N

R

S

T

1100

o

C to 1820

o

C

-150

o

C to 1000

o

C

-150

o

C to 1200

o

C

-100

o

C to 1200

o

C

-100

o

C to 1300

o

C

300

o

C to 1760

o

C

400

o

C to 1760

o

C

-100

o

C to 400

o

C

1.2

o

C

1.0

o

C

1.0

o

C

1.0

o

C

1.0

o

C

1.2

o

C

1.2

o

C

1.0

o

C

400

o

C to 1100

o

C

-200

o

C to -150

o

C

-210

o

C to -150

o

C

-200

o

C to -100

o

C

-200

o

C to -100

o

C

-50

o

C to 300

o

C

-50

o

C to 400

o

C

-200

o

C to -100

o

C

1.8

o

C

1.5

o

C

1.2

o

C

1.5

o

C

1.5

o

C

1.8

o

C

1.8

o

C

1.5

o

C

0.03

o

C

0.03

o

C

0.03

o

C

0.03

o

C

0.03

o

C

0.03

o

C

0.03

o

C

0.03

o

C

RTD

R

0

from 49 Ω to 2.1 kΩ

-200

o

C to 600

o

C

0.06

o

C

0.003

o

C

Thermistor

2.2k, 5k, 10k

-80

o

C to 150

o

C

0.08

o

C

0.002

o

C

Note:

1. For total measurement accuracy, add temperature probe error, for < 1 oC accuracy, an external fixed reference is

required.