UNI-T UT381PV Solar Irradiance Meter with Bluetooth & Tilt Sensor
€210.08
Available, delivery time: 1-3 days
| Product number: | 202738 |
|---|---|
| Manufacturer number: | UT381PV |
| EAN | 6935750538128 |
Are you a reseller, need a large quantity or have a price target?
Apply for a reseller / high volume account to get access to our wholesale conditions. You can also contact our sales team at any time via info@schwick.de or +49 2191 598 280
Product information "UNI-T UT381PV Solar Irradiance Meter with Bluetooth & Tilt Sensor"
Main Product Features
- Dual-channel temperature measurement: ambient sensor (T1) and external suction-cup probe (T2)
- Solar irradiance measurement up to 1400 W/m² (500 Btu/(ft²·h)) for natural and simulated sunlight
- Built-in inclination (-90.0° to +90.0°) and azimuth (0° to 360°) sensors with audiovisual tilt alarm
- High-capacity data logging for up to 12,800 records with adjustable intervals (1 s to 60 min)
- Bluetooth connectivity up to 100 m range; compatible with the iENV mobile app and UT541 I-V curve analyser
- Rugged outdoor construction featuring an anti-UV housing (F1), IP65 ingress protection, and 2 m drop resistance
Advanced PV Testing and Commissioning Solution
The UNI-T UT381PV Solar Irradiance Meter is an indispensable tool designed specifically for photovoltaic installers, field engineers, and quality assurance specialists. Evaluating solar system performance requires accurate environmental inputs, and the UT381PV delivers comprehensive parameters simultaneously. By combining solar irradiance tracking, dual-point temperature readings, and orientation diagnostics into a single handheld unit, it streamlines the verification and commissioning of commercial and residential photovoltaic arrays.
Integrated Multi-Parameter Assessment
Achieving peak power efficiency on photovoltaic panels depends directly on solar irradiance and operating module temperatures. The UT381PV monitors solar radiation up to 1400 W/m² with high precision, catering to both natural outdoor sunlight and indoor testing under simulated solar rays. Its dual-channel temperature system records surrounding air temperature alongside direct module heat via a specialised suction-cup surface probe. Furthermore, the integrated electronic compass and tilt sensor allow users to accurately assess azimuth and panel angle, complete with an audiovisual alarm that notifies technicians immediately if the tilt deviates from the intended configuration.
Reliable Field Performance and European Compliance
Designed for demanding outdoor environments, the instrument features an anti-UV F1-rated housing to safeguard against ultraviolet ageing and cracking under prolonged sun exposure. With an IP65 rating and verified 2-metre drop resistance, the UT381PV stands up to tough building site conditions, rain, and dust. The product provides complete peace of mind, built to ensure safe operation and conforming to EU safety and environmental directives through strict CE compliance and RoHS certification.
Smart Connectivity and Data Workflow
With an integrated Bluetooth module offering a wireless range of up to 100 metres, data collection is effortless. Technicians can connect the device to the iENV app on iOS and Android to view real-time curves, monitor trends, and export professional reports in PDF or CSV formats. The UT381PV can also be integrated directly with the UNI-T UT541 15kW Photovoltaic I-V Curve Analyser, facilitating comprehensive system performance ratio (PR) testing and detailed diagnostic reporting.
Technical Specifications
| Solar Irradiance Range | 0 to 1400 W/m² / 0 to 500 Btu/(ft²·h) |
| Solar Irradiance Resolution & Accuracy | 1 W/m² (1 Btu/(ft²·h)); ±(5.0% rdg + 5 dgts) |
| Temperature Range (°C) | -40°C to 120°C (Resolution: 0.1°C) |
| Temperature Accuracy (°C) | ±1°C (-10°C to 75°C); ±2°C (other ranges) |
| Temperature Range (°F) | -40°F to 248°F (Resolution: 0.2°F / 1°F above 100°F) |
| Temperature Accuracy (°F) | ±2°F (14°F to 167°F); ±4°F (other ranges) |
| Inclination Range & Accuracy | -90.0° to +90.0°; ±1.5° (-50° to +50°), ±2.5° (-85° to -50°, +50° to +85°), ±3.5° (others) |
| Azimuth Range & Accuracy | 0° to 360°; ±7° (Resolution: 1°) |
| Data Storage Capacity | 12,800 datasets |
| Logging Interval | 1 second to 60 minutes |
| Wireless Connectivity | Bluetooth (up to 100 m transmission range) |
| Supported Mobile Software | iENV App (iOS / Android) |
| Ingress & Drop Protection | IP65 rating; 2 m drop tested |
| UV Resistance | Anti-UV housing rating F1 |
| Power Supply | 2 x AA batteries (approx. 95 hours operational life) |
| Auto Power Off | 30 minutes without user operation |
| Operating Environment | -20°C to 60°C; ≤90% RH (non-condensing); altitude ≤2000 m |
| Dimensions & Weight | 201 x 54.2 x 33.7 mm; approx. 212 g (excluding batteries) |
Frequently Asked Questions
What is included in the package?
The UNI-T UT381PV comes with the solar irradiance meter, a suction-cup temperature probe, a solar panel mounting bracket, two AA batteries, a protective cloth bag, a user manual, a safety guide, and a general download operation guide.
Can I monitor solar panel temperature and ambient temperature at the same time?
Yes. The meter features two distinct temperature measurement channels: an integrated ambient sensor (T1) and a detachable suction-cup probe (T2) specifically designed to stick to the back of a solar module, displaying both values simultaneously.
How does the meter transfer data to mobile devices?
The unit features built-in Bluetooth with an unobstructed communication distance of up to 100 metres. You can connect it to the free iENV app to observe live values, configure measurement parameters, and download recorded files in CSV or PDF formats.
Does the UT381PV work with other UNI-T photovoltaic instruments?
Yes, it is designed to seamlessly integrate with the UNI-T UT541 15kW Photovoltaic I-V Curve Analyser, supplying the necessary simultaneous irradiance and temperature data required to perform accurate I-V curve normalisation.
Is the meter suitable for harsh outdoor conditions?
Absolutely. The housing is made with an anti-UV (F1) rating to avoid sun-induced cracking, features IP65 dust and water resistance, and is tested to withstand drops from up to 2 metres.
| Product number: | 202738 |
|---|
Manufacturer
Company Name
Uni-Trend Technology (China) Co., Ltd.
Address
No.6, Gong Ye Bei 1st Road, Songshan Lake National High-Tech Industrial Development Zone,
Dongguan City, Guangdong Province, 523 808, CN
Phone
(+86-769)85723888
EU Responsible Person
Company Name
P+C Schwick GmbH
Address
Bergisch Born 87A, 42897 Remscheid, NRW, Germany
E-Mail
info@schwick.de
Phone
+492191598280
Safety Instructions
⚠️ Safety and Warning Instructions for Measurement and Testing Equipment
Before using our measurement and testing equipment (such as multimeters, current/ground fault clamps, voltage testers, laser and environmental measuring devices, laboratory power supplies, oscilloscopes, and testing and inspection tools), please be sure to observe the following warnings:
Electrical Safety & Voltage Hazards (Danger to Life)
- Risk of electric shock: Check devices and test leads for damage (e.g., cracks in the insulation, exposed wires) before each use. Damaged devices or cables must never be used!
- Measurement categories (CAT): Pay attention to the permissible overvoltage category (e.g., CAT III 600V, CAT IV 300V). Never use the devices in mains circuits that exceed the specified category or the maximum rated voltage/current.
- Voltage-free condition: Perform resistance, continuity, diode, or capacitance measurements exclusively on voltage-free circuits. Capacitors must be discharged before measurement.
- Fuses: Replace defective fuses in multimeters exclusively with the exact same type (usually high-resistance ceramic fuses with the same voltage and current specifications). Never bypass them!
- Grounding & Lab Power Supplies: Operate mains-powered test equipment (e.g., oscilloscopes, lab power supplies, function generators) only from properly grounded outlets. Incorrect voltage or current settings on laboratory power supplies can destroy connected components, which can lead to fire or explosion (e.g., of electrolytic capacitors).
Laser Radiation & Optical Hazards
- Eye injuries: Many devices (laser rangefinders, infrared thermometers, tachometers) use aiming lasers. Never look directly into the laser beam and do not point it at people or animals.
- Reflections: Caution around reflective surfaces! The laser beam can be deflected and unintentionally strike the eye.
- Risk of glare: Borescopes and inspection cameras often have very bright LEDs. Do not look directly into the light source.
Heat, fire hazard & environmental conditions
- Risk of burns: When using thermal imaging cameras or contact thermometers to measure hot components (e.g., in industrial settings or on engines), there is a risk of accidentally touching hot surfaces. The measuring device itself does not protect against the heat of the test object.
- Wetness & Moisture: Never use electrical measuring instruments in wet, damp, or extremely condensing environments unless they explicitly have a corresponding IP protection rating. Moisture inside the device can lead to fatal short circuits.
- Explosion hazard: The devices are generally not EX-protected. Do not use them in environments containing explosive gases, vapors, or dust.
Mechanical hazards & handling
- Rotating machine parts: When using tachometers, anemometers, or stroboscopes on running machines, there is an extreme risk of entanglement. Maintain a safe distance and do not wear loose clothing, have your hair down, or wear dangling jewelry. Ensure that test leads do not come into contact with moving parts.
- Falls & Equipment Damage: A dropped measuring device (e.g., multimeter, insulation tester) may be internally damaged, which means protection against electric shock is no longer guaranteed. If in doubt, have the device tested at 230V before using it again.
- Magnetic fields: Some devices or mounts contain strong magnets. Keep them away from pacemakers, magnetic data storage devices, and sensitive electronics.
General Information & Health
- Technical expertise: Work on electrical systems (especially those operating at 50V AC / 120V DC or higher) must only be performed by appropriately trained professionals.
- Batteries: Remove batteries/rechargeable batteries if the device is not used for an extended period of time to prevent damage and burns caused by leaking battery acid.
- Children: These high-precision test and measurement devices are not toys. Keep them out of the reach of children.