A60 PV Dust Measuring Instrument
ModelWSE-A60
Highlights
- Optical soiling measurement per IEC 61724-1:2021
- Accuracy up to +/-1% in the 100-90% cleanliness band
- No moving parts – near-zero maintenance
- RS485 Modbus standard, 4G optional
- IP67 aluminum housing, -40 to +70 C, under 2 W
Optical soiling sensor (IEC 61724-1) that tells you when your array needs cleaning.
Overview
Optical soiling sensor that tells you when cleaning actually pays.
Dirt, dust and organic/inorganic pollution on PV modules cause real economic losses — the A60 measures the fouling rate of your PV glass optically, per IEC 61724-1:2021, so you schedule cleaning on data instead of guesswork.
Why this machine
Key Benefits
No moving parts
there is no wiper, no shutter and no motor inside, so there is nothing to service and nothing that quietly stops working between site visits. That is the difference between a sensor you trust after two years and one you have stopped reading.
Easy to deploy
installation is a clamp and a cable — no on-site calibration, and at 1.3 kg and 252 × 137 × 35 mm it mounts on a torque tube or rail wherever the sampling makes sense. Put several across a large plant and you can see soiling vary by zone instead of guessing from one number.
Integrates with your monitoring
RS485 Modbus is standard and 4G is optional, so readings land in the SCADA or monitoring platform you already run instead of a separate app nobody opens. It draws 8–24 V DC at under 2 W, which most string monitoring boxes can supply directly.
Built for the field
an IP67 aluminium housing rated −40 to +70 °C and 0–100% RH covers desert heat, coastal humidity and a northern winter — the three environments where soiling is worst and where a plastic-bodied sensor tends not to last.
What it tells you
Know exactly when to clean
High-precision optical measurement
the A60 measures how much dirt is costing you by reading its optical impact on a reference surface, rather than inferring it from a drop in output that could equally be weather. Accuracy runs to ±1% across the 100–90% cleanliness band where cleaning decisions actually get made, with a response under 1 second and 1% per year of drift.
- ± %Accuracy where it counts
- Moving parts to service
- < sFrom dust to reading
- IPSealed for desert and snow
Technical data
Specifications
| Item | Spec |
|---|---|
| Model | A60 |
| Measuring principle | Optical scattering |
| Measuring range | 100% – 50% (cleanliness) |
| Accuracy | 100–90%: ±1% · 90–80%: ±2% · 80–50%: ±4% |
| Stability | 1% / year |
| Response time | < 1 s |
| Connections | RS485 Modbus; 4G optional |
| Power consumption | DC 8–24 V @ < 2 W |
| IP rating | IP67 |
| Operating environment | −40 to +70 ℃, 0–100% RH |
| Material | Aluminum |
| Dimensions | 252 × 137 × 35 mm |
| Weight | 1.3 kg |
Right fit?
Best For
O&M teams that want to clean only when the yield loss justifies it. Pair it with any machine in our range — from the G3 brush to the R20 autonomous robot.
