HAMC-100 Wireless Temperature Monitoring Controller

Overview

The HAMC-100 Wireless Temperature Monitoring Controller is an industrial-grade, DIN-rail–mounted data acquisition and control unit engineered for continuous, high-reliability temperature verification and calibration workflows in regulated environments. It operates as a central receiver and logic controller within a distributed wireless thermocouple network, communicating via IEEE 802.15.4-compliant radio frequency (RF) protocol with up to 100 autonomous sensor modules. Unlike conventional wired thermocouple transmitters, the HAMC-100 eliminates signal degradation over long cable runs and mitigates grounding loop risks by decoupling sensing from signal conditioning—enabling deployment in high-EMI areas such as furnace zones, autoclave chambers, and thermal validation tunnels. Its core function is to acquire, timestamp, validate, and condition raw thermocouple EMF signals across seven standard types (K, J, N, S, T, E, R), applying cold-junction compensation and linearization per NIST ITS-90 reference functions. Designed for compliance-critical applications, it supports traceable temperature monitoring aligned with ISO/IEC 17025, ASTM E2877 (for thermal mapping), and FDA 21 CFR Part 11 requirements when integrated with validated software platforms.

Key Features

• DIN 35 mm rail mounting with IP20-rated enclosure and spring-clamp terminals for rapid, tool-free connection of thermocouple extension wires
• Two programmable relay outputs (NO/NC) supporting independent setpoint-based control logic—for example, triggering cooling fans upon exceedance of upper limit and activating heaters upon lower-limit breach
• Backlit monochrome LCD with intuitive Chinese-language interface; optimized key layout minimizes operator error during field configuration
• RS-485 Modbus RTU interface enabling integration into SCADA, DCS, or MES systems for centralized alarm logging and historical trend analysis
• Configurable sampling intervals (0.25 s to 16 s) with corresponding battery-life estimation—supporting long-term unattended operation in remote or hazardous locations
• Multi-range thermocouple support with automatic type recognition and built-in CJC (cold-junction compensation) using precision internal thermistor array

Sample Compatibility & Compliance

The HAMC-100 is compatible with all standard base-metal and noble-metal thermocouples compliant with IEC 60584-1 and ASTM E230. Its measurement architecture adheres to the fundamental Seebeck principle and implements polynomial curve-fitting algorithms consistent with NIST Monograph 175. For calibration laboratories, the device supports documented uncertainty budgets when used with certified reference thermocouples and traceable dry-block or liquid-bath calibrators. While the HAMC-100 itself is not a primary calibration standard, its ±1 °C accuracy specification (−200 °C to +700 °C) meets typical requirements for in-process verification per ISO 9001 Clause 7.1.5 and EU GMP Annex 15 (Qualification and Validation). The RF communication layer complies with regional regulatory frameworks including FCC Part 15 Subpart C (USA), CE RED Directive (EU), and SRRC certification (China).

Software & Data Management

Data export and configuration are performed via ASCII-based Modbus RTU commands over RS-485 or through optional PC utility software (Windows-compatible, supplied separately). All temperature readings include embedded UTC timestamps and sensor ID metadata, facilitating audit-ready record generation. When deployed in GLP/GMP environments, users may configure the system to generate CSV or XML log files containing raw values, alarms, and configuration change history—enabling full traceability per ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). The controller does not store data internally beyond real-time buffering; persistent storage requires external PLC or historian integration.

Applications

• Thermal validation of sterilization cycles (autoclaves, depyrogenation tunnels, lyophilizers)
• Continuous temperature mapping in pharmaceutical cleanrooms and stability chambers
• Real-time furnace profile monitoring in heat-treatment and sintering processes
• Environmental chamber qualification per IQ/OQ/PQ protocols
• Process validation for food manufacturing (e.g., retort, baking, freezing lines)
• Calibration laboratory support for thermocouple verification against reference standards

FAQ

Does the HAMC-100 support humidity measurement?
No. The HAMC-100 is a dedicated temperature monitoring and control device. It does not incorporate hygrometric sensors or relative humidity functionality.
Can the HAMC-100 be used in explosive atmospheres?
Not without additional certification. The standard unit carries no ATEX, IECEx, or UL HazLoc rating. Intrinsically safe variants require custom engineering and third-party certification.
Is firmware upgrade capability available?
Yes—firmware updates are delivered via RS-485 using proprietary bootloader protocol; version history and release notes are provided under NDA upon request.
What is the maximum allowable thermocouple wire length between sensor and module?
For optimal noise immunity and accuracy, total loop resistance should remain below 100 Ω. With standard 24 AWG extension wire, this corresponds to ≤150 m per channel under typical industrial conditions.
Does the device support Modbus TCP?
No. Only Modbus RTU over RS-485 is implemented. Ethernet or Wi-Fi gateways must be added externally for TCP/IP integration.