National Instruments SCC-TC Series Thermocouple Input Modules Manual do Utilizador descarregar pdf (Página 12)

SCC-TC Series Thermocouple Input Modules User Guide 12 ni.com

Cold-Junction Sensor

Cold-junction sensor accuracy................±0.4 °C max from 15 to 35 °C,

±0.75 °C max from 0 to 15 °C

and 35 to 55 °C

Output .....................................................1.91 V (0 °C) to 0.58 V (55 °C)

Note The accuracy specification includes the combined effects of the temperature sensor

accuracy and the temperature difference between the temperature sensor and any

thermocouple connector. The temperature sensor accuracy includes component tolerances,

temperature drifts, and self-heating effects. It does not include measurement device errors.

Open Thermocouple Detection

Pull-up resistor........................................10 MΩ

Bias resistor ............................................10 MΩ

Maximum field wire gauge.....................16 AWG

Power Requirement

Analog power .........................................60 mW max

+15 V ...............................................2 mA max

–15 V ...............................................2 mA max

Digital power (+5 V) ..............................0.0 mW

Physical

Figure 2. SCC-TC01 Dimensions

1.87 cm

(0.74 in.)

7.60 cm

(2.99 in.)

3.55 cm

(1.4 in.)

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National Instruments SCC-TC Series Thermocouple Input Modules Manual do Utilizador Página 12