Hot Wire Anemometer UNI-T UT362H, 0–30 m/s, Airflow and Temperature Measurement

UNI-T UT362H Hot Wire Anemometer, 0–30 m/s, Airflow and Temperature Measurement

The UNI-T UT362H is a hot wire anemometer designed to measure air velocity, volumetric airflow and air temperature. Its split-probe design with a slim retractable aluminium-alloy probe rod makes it suitable for measurements inside ventilation ducts, air outlets and other confined locations. The instrument uses a platinum-resistance sensor and provides MAX/MIN, averaging functions, 99-set data storage and automatic airflow calculation based on the entered duct cross-sectional area.

Key specifications: 0–30.0 m/s • –20 to +70 °C • up to 999,900 m³/min / CFM / L/s • 99 data sets • 120 cm probe length

Main advantages

• Hot-wire measurement with a platinum-resistance sensor – intended for air-velocity measurements, including low air velocities.
• 0–30.0 m/s air-velocity range – suitable for ventilation, air-conditioning, fan and general airflow measurements.
• Volumetric airflow calculation – calculates airflow in m³/min, CFM or L/s using the measured air velocity and entered duct dimensions.
• –20 to +70 °C air-temperature measurement – enables air velocity and airflow temperature to be checked with the same instrument.
• Circular and rectangular duct settings – enter a circular duct diameter, rectangular duct width and height, or cross-sectional area directly.
• MAX, MIN, Timing Mean and Multipoint Mean – useful for evaluating fluctuating airflow and obtaining representative average values.
• 99-set internal memory – measured values can be stored in the instrument for later viewing.
• Fast / Slow velocity modes – allow the display response to be adapted to faster-changing or less stable airflow.
• 0.5 s sampling time and 5 s power-on warm-up – provide frequent display updates with a short preparation time.
• LCD backlight and Data Hold – improve readability and allow the displayed measurement to be frozen when required.

Applications

The UT362H is intended for indoor and outdoor airflow measurements. Typical applications include HVAC/R servicing, ventilation-system inspection, measurements inside air ducts and outlets, fan testing and other tasks requiring air velocity, volumetric airflow or airflow-temperature measurements.

The slim remote probe is especially useful where a conventional vane-anemometer head would be too large to position conveniently.

Compatibility and limitations

• Volumetric airflow is calculated from the measured air velocity and the duct cross-sectional area entered by the user. UNI-T does not specify a separate airflow-volume accuracy.
• Circular ducts, rectangular ducts and direct cross-sectional-area entry are supported.
• Cross-sectional area can be entered in m² or ft².
• USB, Bluetooth or PC/mobile-app data transfer are not declared for the UT362H in the official product specification.
• The air-temperature measurement range is –20 to +70 °C, while the specified instrument operating environment is 0 to 40 °C. These are different specifications.
• UNI-T does not specify a separate minimum detection threshold. The displayed resolution must not be interpreted as a separately guaranteed minimum detectable air velocity.

Technical specifications

Parameter	Specification
Air-velocity range	0–30.0 m/s
Accuracy, m/s	±(4% of reading + 0.1 m/s)
Range, km/h	0–108.0 km/h
Accuracy, km/h	±(4% of reading + 0.4 km/h)
Range, knots	0–58.3 knots
Accuracy, knots	±(4% of reading + 0.2 knots)
Range, fpm	0–5906 fpm
Accuracy, fpm	±(4% of reading + 20 fpm)
Range, mph	0–67.1 mph
Accuracy, mph	±(4% of reading + 0.3 mph)
Beaufort scale	0–11 bft
Beaufort accuracy / resolution	±1 bft / 1 bft
Air-velocity resolution	0–9.99: 0.01; 10.0–999.9: 0.1; 1000–9999: 1, depending on the selected unit and displayed value
Volumetric-airflow range	0–999,900 m³/min; 0–999,900 CFM; 0–999,900 L/s
Airflow resolution	0.001–100, depending on displayed value
Separate airflow-volume accuracy	Not specified by manufacturer
Temperature range	–20 to +70 °C
Temperature accuracy, 0 to 40 °C	±0.5 °C
Temperature accuracy, –20 to 0 °C and 40 to 70 °C	±0.8 °C
Temperature resolution	0.1 °C
Temperature range, °F	–4 to 158 °F
Accuracy, 32 to 104 °F	±0.9 °F
Accuracy, –4 to 32 °F and 104 to 158 °F	±1.5 °F
Temperature resolution, °F	0.1 °F
Air-velocity units	m/s, km/h, fpm, mph, knots, bft
Airflow units	m³/min, CFM, L/s
Cross-sectional-area units	m², ft²
Duct forms	Circular, rectangular, direct area entry
Circular-duct setting	Diameter
Rectangular-duct setting	Width and height
Air-velocity modes	Fast / Slow
Sampling time	0.5 s
Power-on warm-up time	5 s
Statistical functions	MAX, MIN, Timing Mean, Multipoint Mean
Data Hold	Yes
Data storage	99 sets
Overload indication	Yes
LCD backlight	Yes
Auto power off	After 5 min of inactivity; cancellable
Low-battery indication	Yes
Probe length	120 cm
Operating environment	0 to 40 °C, ≤80% RH
Storage environment	–20 to 60 °C, ≤80% RH
Power supply	3 × 1.5 V AAA
Main-unit dimensions	180.3 × 63.0 × 40.1 mm
Net weight	Approx. 312 g, batteries excluded
Sensor	Platinum-resistance air-velocity sensor
Manufacturer-listed conformity markings	CE, RoHS

Construction and controls

The UT362H uses a split-probe design. UNI-T specifies a retractable aluminium-alloy probe rod and a slim sensing head, making it easier to position the sensor inside ventilation ducts and small air outlets.

Measurements are displayed on a backlit LCD. The instrument supports unit selection, Fast/Slow velocity modes, Data Hold, MAX/MIN values, averaging functions and storage of up to 99 measurement sets.

Important operating and safety notes

• During measurement, point the airflow-direction mark on the probe towards the incoming airflow.
• Do not use the instrument in steam conditions.
• Do not squeeze, impact or touch the sensitive sensor; keep it free of dust and oil contamination.
• Do not pull the connecting wire at the bottom of the probe handle when retracting the rod.
• Cover the probe when it is not in use.

Package contents

• UNI-T UT362H anemometer with probe
• Cloth carrying bag
• 3 × 1.5 V AAA alkaline batteries