Kanomax 6333-0C Thermal Anemometer Transmitter

Overview

The Kanomax 6333-0C Thermal Anemometer Transmitter is a precision-engineered environmental monitoring instrument designed for continuous, remote measurement of air velocity, temperature, and relative humidity in industrial, HVAC, cleanroom, and laboratory settings. It operates on the principle of constant-temperature anemometry (CTA), where a heated sensor element experiences convective cooling proportional to airflow velocity; this thermal dissipation is precisely quantified to deliver high-fidelity wind speed data across an extended dynamic range—from ultra-low velocities (0.01 m/s) up to 50.0 m/s. Unlike cup or vane anemometers, the 6333-0C’s thermal sensing architecture ensures minimal flow disturbance, rapid transient response (≤1 s), and immunity to mechanical wear. Its modular design centers on a compact transmitter unit (100 × 60 × 25 mm, 200 g) that interfaces with 15 standardized, field-interchangeable probes—each optimized for specific application constraints including directional sensitivity, spatial confinement, temperature extremes (up to 120 °C), and combined multi-parameter sensing.

Key Features

• Modular probe architecture: 15 certified probe models (e.g., 0972-00, 0975-31, 0976-05) support configuration flexibility—selecting between directional/non-directional sensing, micro-sized form factors (<Φ6 mm tip), high-temperature operation (120 °C), and integrated temperature/humidity transduction.
• High-resolution low-velocity capability: 0.01 m/s resolution in the sub-10 m/s range enables validation of laminar flow in ISO Class 5–8 cleanrooms, fume hood face velocity checks, and ventilation duct commissioning per ASHRAE 110 and ISO 14644-3.
• Dual-output interface: Simultaneous analog (4–20 mA or 0–5 V, DIP-switch selectable) and digital (RS-485 Modbus RTU) outputs allow seamless integration into BMS, SCADA, or PLC systems without external signal conditioning.
• Robust environmental tolerance: Rated for continuous operation at 0–60 °C and 2–98% RH (non-condensing); selected probes extend operational limits to 120 °C and 95% RH, supporting applications in drying ovens, exhaust stacks, and sterilization tunnels.
• Scalable multi-point monitoring: Up to four 6333-0C units can be daisy-chained via RS-485 to establish synchronized, time-aligned 4-channel environmental monitoring without master controller dependency.

Sample Compatibility & Compliance

The 6333-0C accommodates diverse sampling geometries through its probe interchangeability standard. Directional probes (e.g., 0972-00) are calibrated for axial flow alignment in ducts and hoods; omnidirectional variants (e.g., 0975-00) suit turbulent or unconfined spaces such as cleanroom workstations. Probes with integrated Pt1000 RTD (e.g., 0976-15) and capacitive RH sensors (e.g., 0975-31) comply with ISO 7726 for thermal environment instrumentation and meet traceability requirements under ISO/IEC 17025 when used with accredited calibration services. The system supports GLP-compliant data acquisition when paired with optional MODEL 6333-40 software (Windows 10, tri-lingual UI), which logs timestamped readings with audit trail functionality aligned with FDA 21 CFR Part 11 principles.

Software & Data Management

The optional Kanomax MODEL 6333-40 PC software provides real-time visualization and post-processing of acquired data. It displays concurrent trends for velocity, temperature, and RH in dual-axis graphs, calculates statistical metrics (instantaneous value, moving average over user-defined intervals), and exports structured datasets directly to Excel (.xlsx) format. All measurements are time-stamped with millisecond precision using the host PC clock; no internal memory is required on the transmitter unit. The software enforces role-based access control (administrator/operator modes) and maintains immutable log files—including parameter changes, calibration events, and connection status—facilitating compliance with internal QA procedures and external audits.

Applications

• HVAC system commissioning and balancing per ANSI/ASHRAE Standard 111
• Cleanroom airflow uniformity mapping and ISO 14644-3 certification testing
• Fume hood and biosafety cabinet face velocity verification (NSF/ANSI 49)
• Industrial process exhaust monitoring in pharmaceutical drying and coating lines
• Environmental chamber validation and stability studies (ICH Q5C)
• Mobile air quality surveys using DC-powered configurations (12–24 V) in vehicle-mounted or portable setups

FAQ

Can the 6333-0C measure all three parameters—air velocity, temperature, and humidity—simultaneously?
Yes, but only when equipped with a multi-sensor probe such as MODEL 0975-31 (0–60 °C, 5–95% RH) or MODEL 0976-15 (0–100 °C, integrated Pt1000 + RH). Single-parameter probes (e.g., 0972-00) provide velocity-only output.
What is the minimum measurable air velocity, and under what conditions is the 0.01 m/s resolution guaranteed?
The 0.01 m/s resolution is specified for readings between 0.01 and 9.99 m/s. It requires stable ambient temperature (±1 °C), low turbulence, and use of a calibrated low-velocity probe (e.g., 0975-00 or 0975-31) in accordance with Kanomax’s stated calibration protocol.
Is the RS-485 interface compatible with standard Modbus RTU protocols?
Yes—the 6333-0C implements a full Modbus RTU slave interface (function codes 03h/04h for holding/input registers) with configurable baud rate (9.6–115.2 kbps), parity, and slave ID, enabling direct integration with third-party SCADA platforms.
Does the transmitter require periodic recalibration, and what documentation is provided?
Kanomax recommends annual calibration against NIST-traceable standards. Each unit ships with a factory calibration certificate listing probe-specific sensitivity coefficients, zero offset, and uncertainty values at multiple points across the measurement range.
Can the analog output be configured to transmit two parameters simultaneously (e.g., velocity + temperature)?
No—the analog output is single-channel only. To transmit multiple parameters concurrently, use the RS-485 digital interface or deploy multiple transmitters with dedicated analog channels.