Solar Cellz USA
HT Instruments PV204 - Portable Digital Solar Meter
The HT Instruments PV204 is a compact, handheld solar irradiance meter designed for precise solar power assessment in photovoltaic installations, environmental inspections, and safety evaluations.
Key Features
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Wide Irradiance Range: Measures from 1 to 1999 W/m² (up to 634 BTU/ft²·h) with 0.1 W/m² or BTU resolution.
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Reliable Accuracy: ±10 W/m² or ±5% of reading (±0.38 W/m² per °C shift above 25 °C).
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Dual Units Display: Toggle between W/m² and BTU/(ft²·h) for local or international use.
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User-Focused Interface: Equipped with Data Hold, MAX/MIN tracking, autoranging, zeroing, backlight display, and auto power‑off.
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Portable & Lightweight: Size approx. 190 × 65 × 45 mm, sensor ~110 × 60 × 35 mm, instrument weight ~235 g including battery.
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Long Battery Life: Powered by a single 9 V alkaline battery (IEC 6F22) — up to 60 h with backlight on, or 180 h with it off.
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Rugged Construction: Features IP40-rated casing; compliant with CE, RoHS, EMC (IEC/EN 61326-1) and IEC/EN 61010‑1 safety standards
Technical Specs
| Specification | Details |
|---|---|
| Irradiance Range | 1 – 1999 W/m² / 1 – 634 BTU/(ft²·h) |
| Resolution | 0.1 W/m² (up to 199.9), 1 W/m² beyond that |
| Accuracy | ±10 W/m² or ±5% reading; temp error ±0.38 W/m²/°C |
| Display | 3½-digit LCD with backlight, autorange |
| Functions | HOLD, MAX/MIN, zero (ZRO), autorange, auto-off |
| Dimensions (unit) | 190 × 65 × 45 mm |
| Sensor Dimensions | 110 × 60 × 35 mm |
| Weight | ~235 g (incl. 9 V battery) |
| Battery Life | ~60 h (backlight ON); ~180 h (OFF) |
| Ingress Protection | IP40 |
| Operating Temp/Humidity | 5 – 40 °C, <80%RH |
| Safety & Compliance | CE, RoHS, EMC IEC/EN 61326‑1, IEC/EN 61010‑1 |
Ideal Use Cases
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Solar module or installation inspection
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Estimating solar exposure for energy audits or environmental safety
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Portable irradiance logging during site surveys
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On-site evaluation in remote or rugged working conditions
Included in Package
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PV204 main instrument with external photodiode sensor (1 m cable)
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One 9 V alkaline battery (IEC 6F22)
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Protective cap for sensor, user manual
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Optional carrying pouch or accessories depending on vendor
Why Choose the PV204?
The HT Instruments PV204 strikes an excellent balance between portability, accuracy, and user-friendly design. Reliable in the field, easy to operate, and compliant with international testing standards, it’s a trusted choice for professionals seeking efficient, on-the-go solar irradiance measurement.c