1. Before Use
26
1.5 Error Display
When an error occurs with this instrument, an error display is displayed on the LCD.
Error Display
Contents
BAT
Displayed when the battery is low.
Make sure that power from the power outlet is being supplied, and that the
AC adapter is plugged in properly.
FERR
Displayed when the measurement angle is not properly set.
Check the Measuring field selector switch, and make sure the measurement
angle is properly set.
Low BAT
Displayed when the battery in the instrument should be replaced.
To replace the battery, contact the dealer or TOPCON TECHNOHOUSE
office.
Even when Low BAT is displayed, it is possible to perform measurement by
pressing the RUN/HOLD switch.
＊＊＊＊＊
Displayed when the luminance of the measured object exceeds the
measurement range of the instrument (when Over Range). Check the
measurement range.
Measurement Range
☞
「
Appendix: Specifications
」
When it is not possible to change the measurement range, use a dark filter
(optional).
―
―
Displayed when the luminance of the measured object is below the
measurement range of the instrument (when Under Range). Check the
measurement range.
Measurement Range
☞
「
Appendix: Specifications
」
Timeout
Displayed when data communication cannot be done between two luminance
colorimeters during setting the Direct correction function. Make sure that
the RS-232C parameter settings, communication method and data output
method of the two luminance colorimeters are set the same.
Different Instrument
Displayed when the model name of reference instrument which is set to the
BM-7AC differ from the model name of the instrument that is the actual
reference during setting the direct correction function. Check the model name
of reference instrument setting to the BM-7AC.
OVER
Displayed when the luminance of the measured object exceeds the
measurement range of the instrument (Over Range) during setting the Direct
correction function. Check the measurement range.
Measurement Range
☞
「
Appendix: Specifications
」
When it is not possible to change the measurement angle or measurement
range, use a mesh filter (optional).
Under
Displayed when the luminance of the measured object is below the
measurement range of the instrument (Under Range) during setting the Direct
correction function. Check the measurement range.
Measurement Range
☞
「
Appendix: Specifications
」
Field ERROR
Displayed when the measurement angle is not properly set during setting the
Direct correction function.
Check the Measuring field selector switch, and make sure the measurement
angle is set properly.
