Description
Honeywell TC-HAI081
Technical Specifications
- Channel Quantity: 8 independent high level analog input channels
- Supported Signal: 4-20mA, 0-10VDC
- Analog Resolution: 16 bit
- Communication Interface: Rail-A dedicated I/O backplane bus
- Power Supply: 24VDC from I/O chassis
- Operating Ambient Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 90% RH non-condensing
- Isolation Rating: 500VAC channel to logic isolation
- Mounting Method: Plug-in slot installation on Rail-A I/O chassis
- Certification: UL, CE, RoHS
Functional Features Each channel supports independent signal type selection between current and voltage input. It provides digital noise filtering for industrial high interference environment. It detects sensor wiring open circuit and short circuit fault for each channel. It uploads real-time measurement value and channel diagnostic status to Rail-A controller. It has independent LED indicator for module power, module fault and each channel status. It adopts removable terminal block for convenient pre-wiring and maintenance. It supports hot swap replacement without powering down entire I/O chassis. It supports channel scaling configuration via Experion engineering software.
Application Scenarios Field pressure transmitter 4-20mA signal collection Flow transmitter analog signal acquisition Liquid level transmitter analog input monitoring Remote I/O cabinet analog signal expansion Petrochemical plant distributed I/O signal collection Chemical workshop remote analog monitoring spare replacement
Performance Parameters
- Measurement Accuracy: ±0.1% of full scale
- Insulation Resistance: Greater than 1000 MΩ
- Mean Time Between Failures: 890000 hours
- ESD Immunity: 8kV contact discharge
- Terminal Wiring Specification: 0.5mm² to 2.5mm² copper wire
Material Composition FR4 flame retardant conformal coated PCB 16-bit ADC conversion chip array Precision signal conditioning operational amplifier TVS surge suppression diodes Metal film reference resistors Nylon UL94 V-0 removable terminal block ABS flame retardant plastic housing Tri-color LED status indicators Metal locking buckle for chassis slot
Structural Features Compact plug-in module form factor for Rail-A I/O chassis. Front panel carries removable terminal plug and channel LED indicators. Rear backplane connector realizes power supply and I/O bus communication with Rail-A controller. Internal PCB layout separates analog sampling zone and digital communication zone to reduce crosstalk. Anti-key notch prevents reverse insertion into chassis slot. Locking clip fixes module firmly after installation.
Working Principle Field 4-20mA or 0-10VDC signal enters corresponding channel terminal. Signal conditioning circuit converts input signal into standard sampling voltage. ADC chip converts analog signal into digital value. On-board logic chip filters noise and packages measurement data and fault status. Digital data transmits to Rail-A controller via dedicated backplane bus. When wiring open or short circuit is detected, the module triggers fault flag and uploads alarm information to Experion PKS.
Installation Requirements Wear anti-static wrist strap before inserting module into vacant Rail-A chassis slot. Lock module buckle after alignment. Connect field transmitter shielded twisted pair cable to terminal block. Configure channel signal type and scaling range in Experion engineering workstation. Power on chassis and verify reading consistency with field transmitter display. Separate analog signal cable from high-power AC cable in wiring duct.
Usage Notes Shielded twisted pair cable is mandatory for all analog input wiring. Do not apply voltage exceeding 30VDC to input terminals. Confirm channel configuration matches actual transmitter signal type before commissioning. Keep cabinet internal temperature stable. Do not install module in corrosive gas environment.
