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Resistance Mode: 0–260 Ω to 0–4200 Ω
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Resolution: 16-bit ADC, 0.1 °C typical
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Accuracy: ±0.1 % of span @ 25 °C
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Data Format: 16-bit integer or 32-bit IEEE floating point, user-selectable
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Isolation: 250 V AC continuous channel-to-channel, 1 500 V AC for 1 minute
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Update Rate: 2.3 Hz to 28 Hz per channel, field-configurable
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Filtering: Programmable notch filter 2.3 Hz–28 Hz
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Wire Configurations: 2-, 3-, or 4-wire RTD connections
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Power Supply: 3.3 Vdc 400 mA, 5.1 Vdc 200 mA from RX3i backplane
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Power Dissipation: 2.5 W max
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Operating Temperature: 0 °C to +60 °C
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Storage Temperature: –40 °C to +85 °C
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Relative Humidity: 5 % to 95 % non-condensing
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Mounting: Single-slot RX3i backplane module
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Dimensions: 140 mm × 90 mm × 65 mm
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Weight: 2.11 kg
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Certifications: UL, ATEX C1D2, ABS, DNV, GL, KRS, LR
Functional Features
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Universal RTD compatibility eliminates need for external transducers
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Software-only configuration—no jumpers or DIP switches
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Hot-swap support (RIUP) allows module replacement without powering down the rack
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Extensive diagnostics detect open- or short-circuit sensors and report via LED and controller alarm
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Linearization per ITS-90 ensures traceable accuracy
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User scaling & units selectable as °C, °F, or ohms
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Hold-last-state or configurable safe-state on CPU fault or stop
Application Scenarios
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Process Industries: Reactor, distillation, and extruder temperature monitoring in chemical, petrochemical, and pharmaceutical plants
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Food & Beverage: Pasteurization, baking, and cold-chain control with sanitary RTDs
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Energy: Turbine bearing, transformer winding, and heat-exchanger temperature surveillance
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Water & Wastewater: Anaerobic digester, aeration basin, and boiler temperature loops
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Building Automation: Chilled-water, hot-water, and HVAC zone temperature regulation
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