Email: sales@runshengdcs.com
WhatsApp / Wechat：+86 15383419322
Phone：+86 15383419322Description
The Hollysys K-AI01 is a high-performance 16-channel analog input (AI) module designed for the MACS-K distributed control system (DCS) platform by Hollysys Automation Technologies—a leading Chinese industrial automation provider widely used in power generation, oil & gas, chemical, and municipal infrastructure across Asia and emerging markets.
This module supports multiple signal types per channel—including 4–20 mA, 0–20 mA, 0–5 V, 1–5 V, mV, and RTD (Pt100)—making it highly versatile for interfacing with temperature sensors, pressure transmitters, flow meters, and other field instruments. Each channel features galvanic isolation (500 V) between field and system circuits, ensuring noise immunity in electrically harsh environments like boiler rooms or motor control centers.
With 16-bit A/D conversion and ±0.1% full-scale accuracy, the Hollysys K-AI01 delivers laboratory-grade precision for closed-loop control and regulatory compliance. It also supports HART digital communication pass-through, enabling configuration and diagnostics of smart transmitters via the MACS-K engineering station without disrupting the 4–20 mA loop.
Designed for hot-swap operation in redundant I/O cabinets, the K-AI01 minimizes downtime during maintenance. Status LEDs provide instant visual feedback on module health and channel activity, while built-in open-circuit and overrange detection enhance system reliability.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | K-AI01 |
| Manufacturer | Hollysys Automation |
| System Compatibility | MACS-K DCS (e.g., with K-DPU01 controller) |
| Number of Channels | 16 (individually configurable) |
| Input Signal Types | 4–20 mA, 0–20 mA, 0–5 V, 1–5 V, ±10 V, mV, Pt100 RTD |
| Resolution | 16 bits |
| Accuracy | ±0.1% of full scale |
| Isolation | 500 V AC (channel-to-channel and field-to-system) |
| Sampling Rate | ~10 ms per channel (typical) |
| HART Support | Yes (transparent pass-through for digital comms) |
| Operating Temperature | 0°C to +60°C |
| Mounting | Plug-in to K-SIU01 or compatible I/O base unit |
| Diagnostics | Per-module LED (RUN, ALM), open-wire detection, overrange alarm |
| Approvals | CE, GB/T (China national standards), EMC Level III |
Key Features & Advantages
✅ Multi-Signal Flexibility
Each of the 16 channels can be independently configured via software—eliminating the need for external signal conditioners and reducing spare part inventory.
✅ High Accuracy for Critical Control Loops
±0.1% accuracy ensures precise measurement of key process variables (e.g., drum level in boilers, reactor temperature), supporting stable automatic control and emissions compliance.
✅ HART Pass-Through Capability
Enables remote calibration, device status checks, and asset management of HART-enabled transmitters through the MACS-K engineering workstation—without loop interruption.
✅ Robust Industrial Design
Built to withstand high EMI/RFI in power plants and heavy industry, with conformal coating options available for high-humidity or corrosive environments.
✅ Seamless MACS-K Integration
Automatically recognized in AutoThink (Hollysys’ configuration tool); supports online monitoring, scaling, and alarm setup with full audit trail.
Typical Applications
- Thermal & Nuclear Power Plants: Boiler feedwater temperature, turbine vibration (mV), condenser vacuum (mA).
- Oil Refineries & Chemical Plants: Reactor pressure, distillation column temperature (RTD), flow rate (4–20 mA).
- Water & Wastewater Treatment: pH (mV), turbidity, tank level (4–20 mA).
- Cement & Mining: Kiln shell temperature, dust collector differential pressure.
- District Heating Systems: Supply/return temperature (Pt100), pump status feedback.
Related Products
- K-AO01: 8-channel analog output module (4–20 mA) – complementary to K-AI01.
- K-DI01: 16-channel digital input module.
- K-DO01: 16-channel digital output module.
- K-SIU01: Standard I/O base unit for K-series modules.
- K-DPU01: Main controller (DPU) for MACS-K system.
- AutoThink: Official Hollysys engineering & configuration software suite.
Installation & Maintenance
- Wiring: Use shielded twisted-pair cables; ground shield at cabinet end only. For RTD inputs, use 3-wire connection to minimize lead resistance error.
- Configuration: Define signal type, range, and alarm limits in AutoThink before commissioning.
- Calibration: Perform loop calibration during plant startup using certified mA/V sources.
- Maintenance: No routine servicing needed. Monitor for “ALM” LED or diagnostic alarms in AutoThink indicating open circuits or sensor faults.
- Hot Swap: Supported in redundant I/O configurations—always follow plant safety procedures before replacement.
