Kanomax 6332D Multi-Channel Thermal Anemometer Transmitter System

Overview

The Kanomax 6332D is a precision-engineered thermal anemometer transmitter designed for laboratory-grade and industrial environmental monitoring applications requiring high repeatability and multi-point airflow characterization. Based on constant-temperature anemometry (CTA), the system measures convective heat transfer from a heated sensing element to the surrounding air stream—enabling linear, low-inertia response across a wide dynamic range (0.1–50 m/s). Unlike cup or vane anemometers, the 6332D delivers true vector-agnostic velocity measurement with minimal flow disturbance, making it suitable for laminar and turbulent airflow profiling in HVAC commissioning, cleanroom validation, duct traversing, and wind tunnel calibration. Its modular architecture supports distributed deployment: up to 16 units can be daisy-chained via RS-485 (Modbus RTU protocol) to form a synchronized, time-stamped multi-channel acquisition system—eliminating channel skew and enabling spatial velocity mapping without external synchronization hardware.

Key Features

• Thermal sensing principle with platinum resistance temperature detector (RTD) element for stable zero-point and long-term drift compensation
• Integrated backlit LCD display showing real-time wind speed, unit selection (m/s, ft/min, knots), and output mode status
• Three factory-configurable analog outputs (0–1 V DC, 0–5 V DC, or 4–20 mA) selectable via internal DIP switches—no software or external configuration tool required
• Rugged aluminum alloy housing (IP54-rated) with compact footprint (128 × 78 × 30 mm) and low mass (320 g) for mounting in confined or vibration-prone environments
• Wide operating temperature range (5–40 °C) with built-in temperature compensation algorithms to maintain accuracy across ambient fluctuations
• Support for 10 standardized interchangeable hot-wire and hot-film probes—including straight, bent, and retractable configurations—each calibrated and supplied with individual NIST-traceable certificate

Sample Compatibility & Compliance

The 6332D is compatible with all Kanomax thermal probes designated for the 6000-series platform, including models optimized for low-velocity cleanroom monitoring (e.g., 6341A, 0.05–5 m/s), high-velocity duct testing (e.g., 6343B, 1–100 m/s), and particulate-laden industrial exhaust streams (e.g., 6345C, stainless steel sheath). Each probe connects via a keyed 8-pin M8 connector ensuring repeatable electrical and mechanical alignment. The system complies with IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emissions), and meets CE marking requirements for electromagnetic compatibility and safety (EN 61010-1). While not intrinsically safe, the 6332D is routinely deployed in non-hazardous classified areas per NEC Class I, Division 2 guidelines when paired with appropriate barrier-rated power supplies.

Software & Data Management

Data acquisition is supported through standard Modbus RTU over RS-485, enabling seamless integration with SCADA systems, PLCs (e.g., Siemens S7, Allen-Bradley ControlLogix), and third-party DAQ platforms (NI LabVIEW, Keysight PathWave). Kanomax provides the optional KAN-PC software (Windows only) for local configuration, real-time multi-channel visualization, and CSV/Excel export with timestamped metadata (including probe ID, calibration date, and output scaling parameters). For regulated environments, the system supports audit-ready data logging when used with compliant HMI/SCADA software that implements 21 CFR Part 11-compliant electronic signatures, user access control, and immutable audit trails—though the 6332D itself does not embed embedded FDA compliance features.

Applications

• HVAC system balancing and TAB (Testing, Adjusting, and Balancing) per ASHRAE Guideline 111
• Cleanroom ISO 14644-3 airflow uniformity and velocity profile validation
• Industrial exhaust stack velocity profiling for EPA Method 2 and ISO 29456 compliance
• Wind tunnel boundary layer characterization and wake decay studies
• Pharmaceutical facility room pressure differential verification (e.g., ISO 14644-1 Class 5–8 zones)
• Automotive cabin airflow optimization and thermal management R&D

FAQ

Can the 6332D operate independently without a host controller?
Yes—the device functions as a standalone transmitter with local LCD readout and analog output; no PC or controller is required for basic operation.
Is probe calibration traceable to national standards?
Each probe is supplied with a NIST-traceable calibration certificate covering the full specified range, including uncertainty budgets at three reference points (low/mid/high velocity).
What is the maximum cable length between units in a daisy-chained configuration?
For reliable RS-485 communication at 9.6 kbps, total bus length should not exceed 1,200 meters; use shielded twisted-pair (STP) cable with proper termination.
Does the 6332D support digital output protocols other than Modbus RTU?
No—only Modbus RTU over RS-485 is implemented; no Ethernet, BACnet, or CANopen interface is available.
Can multiple probe types be mixed within one multi-channel system?
Yes—each 6332D unit operates autonomously with its own probe; different probe models may be used simultaneously across the network, provided scaling and units are configured per channel in the host system.