Measurement-computing Personal Daq/3000 Series Bedienungsanleitung PDF herunterladen (Seite 70)

7-4 Specifications

937492 Note: Specifications are subject to change without notice.

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

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

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

25°C ambient temperature; excludes thermocouple error; TC

= 0°C for all types except B

(1000°C), TR-2 for External Power.

Oversampling Effect on Measurement Noise

0.1

-300 -200 -100 0 100 200 300 400

Measured Temperature (ºC)

P-P Noise in Measurement (ºC)

Type T Thermocouple (Lines represent theoretical noise)

16384

8291

4096

256

512

1024

2048

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 85 86

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