Technical Specifications:
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Inputs: 8 differential, channel-to-channel isolated
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Signal types: 0–20 mA, 0–100 mV, 0–5 V, 0–10 V DC
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Resolution: 16-bit
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Accuracy: ±0.5% F.S.
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Module power: 24 V DC
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Comm: I/A node bus, Modbus/HART capable gateway revision
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Temp: –40 to +70 °C
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Humidity: 5–95% non-condensing
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Size: 127×90×60 mm, 0.7 kg
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Ingress: IP65 faceplate (panel mount variant)
Features:
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Per-channel opto isolation
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Software-selectable range
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Onboard open-circuit detection
Working Principle:
Instrument signal buffered by instrumentation amp, 16-bit SAR ADC converts per channel, value placed in node-bus map; HART modem superimposes digital on 4–20 mA if enabled.
Applications: Tank level, pressure compensation, HVAC analog gather in Foxboro Evo.
Installation & Wiring:
DIN/backplane lock; shield drained to single-point earth at cabinet; 4–20 mA loop powered separately from module 24 V DC.
Precautions:
Do not apply >30 V to mV inputs; HART requires 250 Ω loop resistor; avoid parallel grounding of shield at both ends.
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