Troubleshooting PVA & SolSensor Operation:
Segmented or incomplete I-V trace: Just take a fresh trace. Can occur on
first measurement after I-V Unit is turned on or I-V curve has changed
significantly. The PVA automatically optimizes its internal settings based on
the results of the previous measurement.
“Searching for I-V Unit” or “Searching for SolSensor” message: Equipment
may be out of wireless range or may have turned itself off after extended
inactivity (15 min). Improve line of sight, raise instruments above metal
surfaces, or move equipment closer together.
Wireless connection briefly drops out: May occur occasionally. The network
should restore in 1-2 minutes. If not, re-connect your PC to the I-V Unit WiFi
hotspot.
“Disabled” message:Click the status indicator for more information. Clear
the underlying condition, (over-voltage, -current*, -temp, low battery) and
reset I-V Unit or charge unit.
Isc is much different than predicted: Check that SolSensor is mounted in the
plane of the array, and that all Project values are correct (Properties menu).
Software updates: The latest PVA PC software and Data Analysis Tool are
available online at www.solmetric.com/downloads-pva.html
*Do not measure high-efficiency modules or strings in parallel –can cause
over-current disable at start of I-V sweep.
Solmetric Technical Support: Phone: 877-263-5026 ext 2,
Copyright 2018 Solmetric Corp. All rights reserved. Printed 6/17/2018
