Solmetric PVA-1000S, User Manual

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5 Troubleshooting PVA Operation
5-2
"Measuring" message
When "Measuring" appears in the Status indicator, the
I-V Measurement Unit
is
processing a measurement request and performing an I-V measurement.
“Disabled” message
If the message “Disabled” appears in the indicator panel directly above the Measure Now
button, it means that the I-V Measurement Unit has turned itself off because it detected
one of the following conditions. Click on the "Disabled" message and follow the
instructions. Also see Chapter 3 Software Overview for more details on status messages.
Wireless USB version is incompatible
If this is the case, clicking on the "Disabled" message provides instructions regarding
the required version of Wireless USB Adapter. You may also need to update the I-V
Measurement Unit firmware (contact Solmetric for support).
I-V Measurement Unit battery voltage is too low
In this case, clicking on the "Disabled" message pops up a caution that the battery
level is critically low, and that the I-V Measurement Unit will now shut down.
Recharge the battery before further use.
Current in excess of xxA was detected
In this case, clicking on the "Disabled" message pops up text advising that the
maximum input current specification has been exceeded. If you are measuring
strings in parallel, reduce the number of parallel strings. High-efficiency PV modules
and some thin film technologies cause a high current pulse to flow at the start of an I-
V measurement. If you are measuring these types of PV modules, do not measure
strings in parallel.
Excess voltage was detected
In this case, clicking on the "Disabled" message pops up a warning that the voltage
specification was exceeded.
The PVA software checks the DC voltage and will post a "Disabled" message in the
status indicator if the voltage exceeds the specified maximum input voltage. If the
overvoltage is severe, the software also disables the I-V measurement unit. This
condition requires the I-V Measurement Unit to be returned to the factory for
inspection and repair.
I-V Measurement Unit is too hot
In this case, clicking on the "Disabled" message pops up a caution message that the
I-V Measurement Unit internal temperature is too high and the protection circuit has
shut it down. Move the unit to a cooler location out of the direct sun, and allow time
for the temperature to drop.