Product Specification
| Specification | Product Image | |
|---|---|---|
| Manufacturers | Allen-Bradley |  |
| Product No. | 1746-NI4 | |
| Field Wiring to Backplane Isolation | 500V dc | |
| Converter Resolution | 16 bit | |
Non–linearity | 0.01% | |
| Channel Bandwidth | 10 Hz | |
| Step Response | 60 ms at 95% | |
| Input Range (Normal Operation) | -20 to +20 mA | |
| Absolute Maximum Input Current | -30 to +30 mA | |
| Input Impedance | 250 Ohms | |
| Full Scale | 20 mA | |
| Overall Accuracy at +25° C (77° F) (max.) | ±0.365% of full scale | |
| Gain Error at +25° C (77° F) (max.) | +0.323% | |
| Input Range | -10 to +10V dc - 1 LSB | |
Product Description
 | The 1746-NI4 has a 14-bit resolution with a 2.5 millisecond conversion rate. It operates with a current range of -20 to 20 mA and a voltage range of -10 to 10 Volts DC. It has a 500 Volt AC/710 Volt DC backplane isolation and a 60-millisecond step response time. Its conversion method is “sigma-delta conversion”, and it has a nominal throughput delay of 512 micro seconds. Its nominal input range is plus/minus 20mA, its maximum input range is plus/minus 30 mA, and it has an input current encoding of plus/minus 16384 for plus/minus 20mA. With 5 Volts DC or 7.5 Volts AC RMS maximum input voltage (absolute), the 1746-NI4 has a nominal input resistance of 250 Ω. |
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Product Features
1
Four Analog Channels
Provides four channels for analog input, each independently configurable for voltage or current signals.
2
Selectable Input Types
Each channel can be set via DIP switches to accept either voltage (0-10V DC) or current (4-20mA) inputs.
3
Accuracy Drift
Maintains a stability with a full-scale accuracy drift of 79 ppm/°C, ensuring minimal performance degradation over temperature changes.
4
Temperature Range
Designed to operate reliably within an environmental range of 0 to 60°C, making it suitable for various industrial conditions.
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