Rockwell-automation 1790-XXXX CompactBlock LDX I/O DeviceNet RTD and T Manual de usuario descargar pdf (Pagina 20)

20

Publication 1790-IN011B-EN-P - April 2003

4-Channel Input RTD Base Module Specification

s

1790D-4R0, 1790D-T4R0

Inputs per module 4 channel, RTD/Resistance Input

Input Range 1-625

Sensors Supported Sensor Type Degree Counts Resolution

Resistance 100m

Ω 1 to 625Ω 10 to 6250 100mΩ

Resistance 10mΩ 1 to 327Ω 100 to

32700

10mΩ

100ohm Pt/α =0.00385 -200 to

+850°C

-2000 to

+8500

0.1°C

200ohm Pt/

α =0.00385 -200 to

+850°C

-2000 to

+8500

0.1°C

500ohm Pt/α =0.00385 -200 to

+650°C

-2000 to

+6500

0.1°C

100ohm Pt/

α =0.003916 -200 to

+640°C

-2000 to

+6400

0.1°C

200ohm Pt/α =0.003916 -200 to

+640°C

-2000 to

+6400

0.1°C

500ohm Pt/

α =0.003916 -200 to

+640°C

-2000 to

+6400

0.1°C

100ohm Nickel -60 to

250°C

-600 to

2500

0.1°C

120ohm Nickel -80 to

260°C

-800 to

2600

0.1°C

200ohm Nickel -60 to

250°C

-600 to

2500

0.1°C

500ohm Nickel -60 to

250°C

-600 to

2500

0.1°C

Resolution 16 bits across 625ohms, 0.1°C/bit or 0.1°F/bit (RTD Sensors)

20bit Sigma-Delta modulation converter

Data Format 16 bit Integer (2’s compliment)

Module Scan Time 8ms/channel @ Notch Filter = 60Hz

Overall accuracy 0.2% Full scale @0°C-60°C

Settable Notch Filter 10Hz (default), 25Hz, 50Hz, 60Hz, 100Hz, 250Hz, 500Hz

Open Wire Detection Out of range, open wiring

Excitation Current 1mA

Input Impedance 5M ohm

Specifications continured on next page.

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