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Measurement Computing DaqBoard 3000USB Series User Manual

Page 98

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7-4 DaqBoard/3000USB Series Specifications

928691

Note: Specifications are subject to change without notice.

TC Type

Temperature

Range (°C)

Accuracy

(±°C)

Noise,

Typical

(±°C)

J

-200 to

+760

1.7

0.2

K

-200 to

+1200

1.8

0.2

T

-200 to

+400

1.8

0.2

E

-270 to

+650

1.7

0.2

R

-50 to

+1768

4.8

1.5

S

-50 to

+1768

4.7

1.5

N

-270 to

+1300

2.7

0.3

B

+300 to

+1400

3.0

1.0

1

Assumes 16384 oversampling applied, CMV = 0.0V, 60 minute warm-up, still environment,

and 25°C ambient temperature; excludes thermocouple error; TC

IN

= 0°C for all types except

B (1000 °C), TR-2 for External Power.

0.01

0.1

1

-300

-200

-100

0

100

200

300

400

Measured Temperature (ºC)

N

o

ise i

n

ºC

, P

eak to

P

eak

Type T thermocouple

Lines represent theoretical noise

Symbols are measured data - 1000 samples with 60Hz

rejection enabled

16384

8291

4096

256

512

1024

2048

Voltage

Range*

Accuracy

±(% Reading + % Range)

23ºC ± 10°C, 1 year

Temperature Coefficient

± (ppm of Reading + ppm Range)/ºC

-30ºC to 13°C and 33ºC to 70ºC

Noise**

(cts RMS)

-10V

to

10V

0.031% + 0.008%

14 + 8

2.0

-5V

to

5V

0.031% + 0.009%

14 + 9

3.0

-2V

to

2V

0.031% + 0.010%

14 + 10

2.0

-1V

to

1V

0.031% + 0.02%

14 + 12

3.5

-500 mV

to

500 mV

0.031% + 0.04%

14 + 18

5.5

-200 mV

to

200 mV

0.036% + 0.05%

14 + 12

8.0

-100 mV

to

100 mV

0.042% + 0.10%

14 + 18

14.0

*

Specifications assume differential input single-channel scan, 1-MHz scan rate, unfiltered,
CMV=0.0V, 30 minute warm-up, exclusive of noise, range is -FS to +FS.

**

Noise reflects 10,000 samples at 1-MHz, typical, differential short.

TC Types and Accuracy

1

10













1.0













0.1