HT Instruments SOLAR‑02 Remote Unit – Irradiation, Cell & Ambient Temperature, and Tilt Measurement
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Estimated Delivery:Dec 01 - Dec 05
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HT Instruments SOLAR‑02 Remote Unit – Irradiation, Cell & Ambient Temperature, and Tilt Measurement
The SOLAR‑02 is a field-ready remote sensor unit designed to measure irradiance, module temperature, ambient temperature, and tilt angle for photovoltaic installations. It pairs with HT’s master I‑V testers such as I‑V 400w and SOLAR I‑V series to enable synchronized, high‑precision PV performance analysis, either via USB or RF wireless connection (2.4 GHz, Class 1 compliant).
Key Features (Standalone or Paired Operation)
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Measures irradiance using PYRA or reference cell inputs (Irr-P / Irr-S2) within 0–1400 W/m² range, ±1.0% basic accuracy
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Monitors cell temperature via PT300N probe (–20 °C to 99.9 °C; ±1.0% rdg +1 °C), and ambient temperature on display
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Built-in inclinometer mode measures module tilt from 1°–90° (±1° accuracy) as part of alignment checks
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Supports up to three irradiance probes, permitting multi-sensor setups and averaging
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Standalone or synchronized mode: Works independently, or connects to HT master instruments via USB (M‑USB) or RF (M‑RF) for synchronized recording during testing workflows
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Water-resistant (IP65 rated) construction with magnetic mount for stable field attachment (e.g. on module surface)
Specifications Summary
| Specification | Details |
|---|---|
| Irradiance Range/Accur. | 0–1400 W/m², ±1 % rdg (+ offset based on probe K) |
| Temperature (Cell / Ambient) | –20 °C to 99.9 °C, ±1 % rdg +1 °C |
| Tilt Range/Accuracy | 1–90°, ±1° |
| Battery Type / Life | 4× AAA alkaline (LR03); approx. 480 hours runtime |
| Display | Four-digit LCD, numeric + decimal modes |
| Memory & Autonomy | ~1.5 hours recording @ 5 s sync interval |
| Dimensions & Weight | 120 × 65 × 35 mm; 215 g (incl. batteries) |
| Protection Rating | IP65 (dust/water resistant) |
| Probe Connectors | Hypertac-type PYRA / TEMP inputs |
| Safety & Compliance | CE / EMC per EU standards; radio per ERC/REC 70‑03 |
Ideal Use Cases
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Enhancing I‑V curve testing workflows by remote monitoring of environmental conditions
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Conducting PV module commissioning & verification alongside HT master testers
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Deploying in challenging site conditions—outdoors, near panels, or locations hard to reach
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Conducting PV panel alignment checks using built-in tilt measurement function
Why SOLAR‑02 Stands Out
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True remote convenience: Enables simultaneous field sensor monitoring independent of the I‑V instrument
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Multi-probe flexibility: Supports up to 3 irradiance sensors for finer data accuracy
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Wireless synchronization: Facilitates efficient test flows when paired with HT master meters
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Durability and portability: Lightweight, splash-proof design with magnetic mounting ease
Document: Specification Sheet
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