EKO INSTRUMENTS CO., LTD. I-V Curve Checker MP-11 Instruction Manual Ver.7
2. MP-11 Software Error and Warning Messages
Table 10-2. MP-11 Software Error and Warning Messages
Definitions and Corresponding
COM port number is not setup properly.
This message may appear when [Start], [Load Data], or [Set Clock]
buttons are clicked, as well as when MP-11 is operated after a
while that there was no operation performed.
Check the USB cable and make sure it is connected properly.
To verify the appropriate COM port number:
Without connecting the MP-11 and PC with USB cable, check the
COM port number, which is listed under “COM Port” dropdown list
on the “General” dialog window accessed from [General] button on
Measure tab. Then connect the MP-11 and PC with USB cable
and check the COM port number listed on the dropdown list again.
If a new COM port number is added, this would be the assigned
COM port number.
If there is only COM1 from the beginning, select this COM1.
In case there are multiple COM numbers listed, and there is no
COM number added by inserting the USB cable, reinstall the USB
driver.
Measurement Interval Warning Message.
When the interval between two measurements is less than 1
minute, this message appears.
To prevent the MP-11 internal temperature increase, wait more
than 1 minute before taking the next measurement.
The MP-11 internal temperature exceeded 50℃.
Possible causes for the high temperature are:
a. Taking measurements for a long time in a direct sun light.
b. Taking measurements in high ambient temperature.
c. Taking measurements on PV module/array which is close to
or exceeding the MP-11 maximum rating.
In case of a. or b., turn OFF the power and leave the MP-11 in a
shaded cooler place for a while until the internal temperature cools
down. When restarting the measurement, place the MP-11 Main
Unit in a shade while it takes measurements.
Even if the measuring PV module/array is within the maximum
rating, take longer measurement interval as much as possible.
Please avoid taking measurements with PV module/array that
exceed the maximum rating.
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