Kanomax KA12 Multi-Channel Thermal Anemometer System

Overview

The Kanomax KA12 Multi-Channel Thermal Anemometer System is a precision-engineered environmental monitoring platform designed for simultaneous, synchronized measurement of air velocity across up to four independent sampling points. Built upon constant-temperature anemometry (CTA) principles, the KA12 maintains a stable thermal resistance in its probe’s sensing element—typically a fine platinum or tungsten wire—while compensating for convective heat loss induced by airflow. This enables high-fidelity, real-time quantification of low-to-moderate velocity ranges with minimal thermal inertia and excellent temporal response. Unlike single-point instruments, the KA12 supports distributed spatial profiling—critical for HVAC commissioning, cleanroom validation, fume hood performance verification, and laminar flow characterization where velocity uniformity and directional consistency must be assessed across multiple locations within a defined plane or volume.

Key Features

• Four-channel synchronous acquisition with independent zero and span calibration per channel
• Modular probe architecture supporting 10 standardized Kanomax thermal anemometer probes—including straight, 90° bent, retractable, and high-temperature variants—enabling rapid adaptation to ducts, grilles, diffusers, and confined spaces
• Dual analog output options (0–5 V DC or 4–20 mA) for integration into building management systems (BMS), PLCs, or SCADA architectures without additional signal conditioning
• RS-232C serial interface compliant with EIA/TIA-232 standards for bidirectional communication, firmware updates, and remote configuration via terminal emulation or custom scripts
• Robust aluminum chassis with EMI-shielded internal layout, rated for continuous operation in industrial and laboratory environments (IP20 enclosure rating)
• Real-time display with backlit LCD showing instantaneous velocity, average, min/max, and standard deviation per channel

Sample Compatibility & Compliance

The KA12 accommodates a broad spectrum of airflow conditions without requiring recalibration when switching probes—thanks to Kanomax’s proprietary probe identification protocol and channel-specific gain/offset tables stored in non-volatile memory. Probes are calibrated traceably to JIS Z 8001 and ISO/IEC 17025-accredited standards at Kanomax’s Yokohama Calibration Center. The system meets IEC 61000-4 electromagnetic compatibility requirements and conforms to UL 61010-1 safety specifications for electrical equipment used in measurement, control, and laboratory applications. While not inherently certified for hazardous locations, optional ATEX-compatible probes (e.g., KA-12-EX series) may be deployed under appropriate engineering controls per EN 60079-0.

Software & Data Management

The included KA-View software (Windows-based, 64-bit compatible) provides comprehensive data acquisition, time-synchronized logging (up to 10 Hz per channel), statistical analysis (mean, RMS, turbulence intensity), and multi-axis charting (velocity vs. time, spatial contour overlays). All datasets are timestamped with millisecond resolution and support CSV, TXT, and native .kav export formats. Audit trails record operator ID, parameter changes, calibration events, and file modifications—facilitating compliance with GLP and ISO 17025 documentation requirements. Optional add-ons include FDA 21 CFR Part 11-compliant electronic signature modules and automated report generation aligned with ASHRAE Standard 111 and ISO 14644-3 cleanroom testing protocols.

Applications

• HVAC system balancing and airflow verification in commercial buildings and hospitals
• Cleanroom classification (ISO 14644-1) and recirculation ratio assessment
• Fume hood face velocity mapping and sash position correlation studies
• Wind tunnel boundary layer profiling and wake characterization
• Industrial exhaust stack velocity audits per EPA Method 2 and ISO 16883
• Validation of laminar flow cabinets and biosafety cabinets (NSF/ANSI 49)

FAQ

Can the KA12 measure turbulent intensity or calculate volumetric flow directly?
The KA12 outputs instantaneous velocity values; turbulence intensity (u’/U) and volumetric flow require post-processing using external software or custom scripts that apply ensemble averaging and cross-sectional integration algorithms.
Is probe calibration certificate included with each unit?
Each probe ships with a NIST-traceable calibration certificate valid for 12 months; system-level calibration verification is performed at factory but not supplied as a separate document unless requested as an optional service.
Does the KA12 support USB or Ethernet connectivity?
No—only RS-232C serial interface is natively supported. USB-to-serial adapters or RS-232-to-Ethernet gateways may be used with verified driver compatibility.
What is the maximum cable length between probe and main unit?
Standard probe cables are 2 m; extended versions up to 10 m are available with compensated shielding to maintain signal integrity and minimize noise-induced drift.
Can data logging continue during power interruption?
No—the KA12 lacks onboard non-volatile memory for standalone logging; continuous acquisition requires uninterrupted AC power and active connection to KA-View or a third-party DAQ system.