Overview
The SAI143 module is designed to receive 4 to 20 mA input signals from the field. It also supports dual redundancy for enhanced reliability.Specifications
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Number of Input Channels:
- 16 channels
- Module isolation
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Rated Input Range: 4 to 20 mA
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Permissible Input Range: 0 to 25 mA
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Input Impedance:
- During Power-ON: 250 Ω + Current value
- During Power-OFF: 500 kΩ minimum
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Voltage Drop in Input Protection Circuit: Inside the module
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Rated Accuracy:
- SAI143-S: ±16 µA (Input range 1 to 23 mA)
- SAI143-H: ±16 µA (Input range 0.05 to 23 mA)
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Data Update Frequency: 40 ms
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Temperature Drift: ±16 µA per 10 °C
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Transmitter Power Supply:
- Minimum: 16.15 V (at 20 mA)
- Maximum: 26.4 V (at 0 mA)
- Output current limit: 25 mA
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2/4-Wire Setting:
- Individual channel setting
- Changed by setting pins
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Withstand Voltage: 1.5 kV AC between input signal and system for 1 minute
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Maximum Current Consumption:
- 5 V system: 320 mA
- 24 V system: 550 mA
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Weight:
- Approx. 0.34 kg (For pressure clamp terminal block or MIL cable)
- Approx. 0.39 kg (With signal cable interface adapter)
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External Connection:
- Pressure clamp terminal
- MIL cable
- Dedicated signal cable
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PRM Support: Available for SAI143-H
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Transmitter Power Supply ON/OFF Function: Available in 2-wire setting for all 16 channels simultaneously.
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