Measurement-computing USB-5203 Bedienungsanleitung PDF herunterladen (Seite 30)

USB-5203 User's Guide Specifications

Current excitation outputs (Ix+)

The device has four current excitation outputs, with I1+/I1– dedicated to the CH0/CH1 analog inputs, I2+/I2–

dedicated to CH2/CH3, I3+/I3– dedicated to CH4/CH5, and I4+/I4– dedicated to CH6/CH7. The excitation

output currents should always be used in this dedicated configuration.

The current excitation outputs are automatically configured based on the sensor (thermistor or RTD) selected.

Table 19. Current excitation output specifications

Parameter Specification

Configuration 4 dedicated pairs:

Current excitation output AI channel

I1+/I1– CH0/CH1

I2+/I2– CH2/CH3

I3+/I3– CH4/CH5

I4+/I4– CH6/CH7

Current excitation output ranges Thermistor: 10 µA typ

RTD: 210 µA typ

Tolerance ±5% typ

Drift 200 ppm/°C

Line regulation 2.1 ppm/V max

Load regulation 0.3 ppm/V typ

Output compliance voltage (relative

to GND pins 9,19,28,38)

3.90 V max

–0.03 V min

Environmental

Table 20. Environmental specifications

Operating temperature range 0 °C to 70 °C

Storage temperature range –40 °C to 85 °C

Humidity 0% to 90% non-condensing

Mechanical

Table 21. Mechanical specifications

Dimensions (L × W × H) 128.52 x 88.39 × 35.56 mm (5.06 × 3.48 × 1.43 ft)

User connection length 3 m (9.84 ft) max

Screw terminal connector

Table 22. Screw terminal connector specifications

Connector type Screw terminal

Wire gauge range 16 AWG to 30 AWG

1 2 ... 25 26 27 28 29 30 31 32 33

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Measurement-computing USB-5203 Bedienungsanleitung Seite 30