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23
October 2020
Solar Venture 300W PV Array Operator and Maintenance Manual
Procedure to Measure PV Array V
oc
with a Multimeter
• Carefully place the leads of the voltmeter on pins A and C in the bayonet connector (Figure 16) at
the end of the Solar Cable. Pin B is unused.
• Alternatively, disconnect the Solar Cable from the array leads and place the meter probes into
the array lead connectors (orange boxes in Figure 16).
Under ideal conditions, the reading should be ~65 V. If a normal voltage reading cannot be
measured at pins A and B of the Solar Cable but CAN be measured at the PV array lead connectors,
replace the Solar Cable.
Contact Solar Stik if a PV array voltage measurement indicates that a PV array is either not
functioning or is performing very poorly.
Figure 16. Measuring PV array open circuit voltage V
oc
30’ Solar Cable
The rated V
oc
for the array is 65
A(-)
C(+)
B