1 Getting Started
2-55
Over-Voltage Warnings
PVA-1500xx Over-voltage Condition
If the open-circuit voltage of the PV source under test exceeds the specified maximum
DC input voltage of the I-V Measurement Unit, the instrument may be damaged and
require factory repairs. Over-voltage can occur if the PV system's DC voltage is higher
than expected or two strings are accidentally wired in series.
If a PV voltage greater than 1,525V is detected, an over-voltage warning will appear in
the PVA software. Reduce the PV voltage before continuing to make measurements. If a
PV voltage in excess of 1,550V is detected, the I-V Unit internally disables itself to
prevent further measurements and a warning is posted, advising the user to return the unit
to Solmetric for inspection and repair of possible internal damage.
PVA-1000S Over-voltage Condition
If a voltage in excess of 1100 V is detected, the I-V Measurement Unit switches into
disabled mode and the status indicator displays "Disabled". Reduce the voltage below
1000V to resume normal operation.
If a voltage more than 1500 V is detected, the I-V Measurement Unit is internally
disabled to prevent continued use of a damaged unit. Resetting or restarting the I-V
Measurement Unit will not re-enable it. Please contact Solmetric to arrange for repairs.
PVA-600
+
Over-voltage Protection
If an input voltage greater than 650 V is detected, the I-V Measurement Unit is
automatically reprogrammed to a disabled state and the user is instructed to return the
unit and wireless USB adapter to Solmetric for service.
WARNING Severe over-voltage conditions can damage the I-V Measurement Unit input
protection circuitry.
Over-Current Warnings
If the I-V Unit is exposed to current in excess of its specified DC input current, damage
may occur to the I-V Unit requiring a return to the factory for repair. A warning message
will appear when excess current has been applied to the unit.
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