Description
Honeywell MC2-440-10TVB-1-21
Technical Specifications
- Product type: Analog input card
- Channels: Multi-channel AI
- Inputs: 4 to 20 mA, mV, thermocouple, RTD
- Accuracy: 0.1 % FS
- Sampling: 100 ms
- Supply: Rack backplane DC5V
- Isolation: Channel group isolation
- Temperature: 0 °C to +60 °C
- Storage: -20 °C to +70 °C
- Humidity: 5 % to 95 %, non-condensing
- Protection: IP20
- Installation: Eurocard plug-in
Functional Features
- Multi-channel analog acquisition
- mA, mV, thermocouple, RTD support
- Channel group optical isolation
- Channel wire-break and short-circuit diagnosis
- Front panel LEDs per channel
- Thermocouple cold junction compensation
- RTD three/four-wire connection
- TPS bus communication
- Non-volatile channel configuration
- Industrial wide-temperature design
Application Scenarios
- Refinery DCS process signal acquisition
- Petrochemical temperature, pressure, flow
- Chemical reactor analog monitoring
- Plant analog input cards
- Honeywell TPS AI cards
Materials and Construction
- Front panel: Metal panel
- PCB: FR4 board with conformal coating
- Core: Multi-channel ADC, signal conditioning
- Connector: Gold-plated Eurocard
- Terminals: Screw-fastened terminals
- Passive components: Precision resistors, capacitors
Structural Features
- Eurocard plug-in in TPS rack I/O slot
- Front panel channel LEDs and terminals
- Channel group isolation
- Analog circuits away from digital interference
- Card locking mechanism
- Removable terminal block
Working Principle Field signals enter terminals; after filtering and programmable gain, ADC samples to digital. Thermocouple channels have cold junction compensation; RTD channels use constant-current excitation. Channel diagnostics monitor loop status. Samples upload over TPS bus to the control station. LEDs indicate channel status.
Installation Requirements
- Insert I/O slot with power off
- Shielded twisted pair signal wires, single-point ground
- Route signal and power cables separately
- Rack grounding
- Temperature 0 °C to +60 °C
- Configure channel type and range in engineering software
Precautions
- Do not hot-swap online
- Signal type matches configuration
- Wear ESD wrist strap
- Verify channels from software after replacement
- Store spares in anti-static moisture-proof packaging
- Periodically calibrate accuracy
