Topcon BM-9A, Instruction Manual

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12
The function of each switch is as follows:
Switch Description
[AUTO/MANU.]
Auto/Manual Switch for selection between [AUTO] and [MANU].
[AUTO]: Optimum measurement range is automatically selected
according to luminance level.
[MANU.]: Measurement range is manually set.
Display range
☞
‘2.4 Measurement Range and Resolution’
[MANU. RANGE]
Manual Range Changes the measurement range to the next manually.
Measurement range are switched in turn as follows;
1→2→3→4→5
Display range
☞
‘2.4 Measurement Range and Resolution’
[C.C.F.]
Color Correction Factor Sets and confirms the value of the correction factor in correction factor
mode. The BM-9A can memorize one correction factor data.
[#] Unassigned
[%] Displays percentage of the measured value to the reference data. Or
use this switch to set the reference data.
[
⊿
] Displays difference between the measured value and the reference data.
Or use this switch to set the reference data.
[CALL] During Percentage or Difference mode, Press this switch for 3 seconds
to display reference data.
[CAL]
Calibration Starts zero-adjustment. Zero-adjustment keeps the sensitivity of the
detector stable condition.
Each time you turn on power of the instrument, zero-adjustment
automatically starts, so you do not need to press [CAL] switch.
[ ] Use this switch to set decimal point, when you enter reference data in
the percentage and the difference mode or when you enter correction
factor
[0 - 9] Use this switch to increment the numerical value when you enter
reference data in the percentage and the difference mode or when you
enter correction factor.
[SHIFT] Use this switch to shift the cursor to down digit when you enter reference
data in the percentage and the difference mode or when you enter
correction factor.
[SET] Use this switch to confirm the reference data in the percentage and the
difference mode, or in correction factor setting.