UT381PV Solar Irradiance Meter
The UNI-T UT381PV is a solar irradiance meter. It measures sunlight and monitors both ambient and panel temperatures. It also has a built-in angle sensor to check installation tilt and direction. You can connect it to the "iENV" mobile app and pair it with the UT541 analyzer. It is used for installing and maintaining solar panels.
Product Details
The UT381PV Solar Irradiance Meter is designed to measure solar irradiance under both natural and simulated sunlight. It is equipped with dual measurement channels for monitoring ambient and solar panel temperatures, along with a built-in inclination and azimuth sensor to accurately determine installation direction and tilt angle. The device also supports connectivity with the mobile application “iENV” and can be integrated with the UT541 15KW Photovoltaic I-V Curve Analyzer. It is widely used for solar panel installation and maintenance in photovoltaic power stations, as well as for product testing in PV laboratory environments.
Features
Certifications: CE, RoHS
Language:EN, FR, DE, IT, ES, SV, PL, CZ
Multiple Targets Measurement
UV-Resistant Housing
IP65 Rating
2m Dropproof
Mobile APP Connection
Quick-Release Bracket
FAQ
Q: What is the UNI-T UT219PV clamp meter designed for?
A: It is a True RMS AC/DC clamp meter specially developed for high-voltage photovoltaic, energy storage, UPS and power distribution system maintenance. It supports DC voltage up to 2500V and AC voltage up to 1500V for solar field testing.
Q: What is the safety rating and protection level of UT219PV?
A: It is rated CAT III 1500V / CAT IV 600V, with IP65 dustproof and waterproof, suitable for outdoor harsh PV construction sites.
Q: What does LPF low-pass filter function do?
A: LPF suppresses high-frequency harmonic interference from inverters, delivering stable and accurate readings for inverter output measurement.
Q: Can it capture inrush and peak current?
A: Yes, it supports inrush current and peak value capture, which helps diagnose startup faults of solar inverters and power equipment.
Q: What is the solar polarity alarm function?
A: When the DC voltage is lower than -10V, the meter will trigger sound and light alarm to remind reverse connection of solar panels and avoid installation errors.
Q: Does it support flexible clamp sensor?
A: Yes. It is compatible with optional UT-CS09D flexible clamp sensor, expanding the test range up to 3000A AC current.
Q: Does it have Bluetooth connection?
A: Built-in Bluetooth 5.0, it connects to UNI-T official APP for remote monitoring, data storage and export.
Q: What is the jaw size?
A: 35mm jaw opening, easy to clamp wires inside combiner boxes and inverters with narrow space.
Q: What measurement functions are included?
A: It measures AC/DC voltage, AC/DC current, DC power, frequency, resistance, capacitance, temperature, diode and continuity test. It features dual display (V+A), auto hold, auto backlight and low battery reminder.
Q: What power supply does it use?
A: Powered by 2 AA batteries, easy to replace on site.
Q: What certifications does this meter have?
A: It comes with CE, cETLus and RoHS certifications.
Specifications
Specification | Range | Resolution | Accuracy |
|---|---|---|---|
Solar Irradiance Measurement | 0～1400W/m² 0～500 Btu/(ft²·h) | 1 | ±(5.0%rdg+5dgts) |
Temperature Measurement | -40~120°C -40~248°F | 0.1 0.2/1 (>100°F) | ±1°C (-10~75°C) ±2°C (others) ±2°F(14~167°F) ±4°F(others) |
Inclination Measurement | -90.0~+90.0 ° | 0.1 | ±1.5°(-50~+50°) ±2.5°(-85~-50°+50~+85°) ±3.5°(others) |
Azimuth Measurement | 0~360° | 1 | ±7° |
Data Storage | 12800 sets | ||
Storage interval | 1s ~ 60min | ||
LED Indicator | ✓ | ||
Sound Prompts | ✓ | ||
Auto Power Off | 30 minutes (no operations) | ||
Compass Calibration | ✓ | ||
Mobile APP | ✓ | ||
Time Setting | ✓ | ||
Bluetooth wireless transmission distance | 100m | ||
Working Height | ≤2000 meters | ||
Working Environment | -20°C~60°C, ≤90%RH(non-condensing) | ||
Storage Environment | -30°C~70°C, ≤80%RH(non-condensing) | ||
IP Rating | IP65 | ||
Drop Test | 2 meters | ||
General Characteristics | |||
Battery | 2*AA | ||
Battery Life | About 95h | ||
Size | 201×54.2×33.7mm | ||
Weight | About 212g(Battery not included) | ||
Accessories | Solar Irradiance Meter1, Cloth Bag1, User Manual1, Safety Guide1, AA Battery2, Suction-Cup Temperature Probe1, Solar Panel Mounting Bracket1, General Download Operation Guide1 | ||
Standard Quantity Per Carton | 2pcs |
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