5. Measurement
CAUTION:
•There is danger of electric shock if the meter is handled with wet hands, during rain, in areas splashed by water or where there is a lot of moisture.
Under such conditions, it is recommended that you use the meter in the cordless flash mode, or wireless flash radio triggering mode and keep the Synchro terminal cap in place.
NOTE:
•The flash unit may flash when you connect the Synchro cord or operate the Power button.
•When firing a flash to take measurements, check the camera's synchronizing range and set the proper shutter speed.
•For flash units with low electric trigger voltage, the flash may not fire. In this case, make measurements in cordless multiple flash mode (see page 25) or wireless multiple flash radio triggering mode (see page 29).
•EV scale cannot display in flash cumulative mode.
Reference:
•Setting the shutter speed is similar to the previous instruction (see page 22).
•Readings outside the display range or beyond the measuring range are similar to the previous instruction (see page 16) of “Shutter speed priority mode” of section
•If the ISO sensitivity film speed is changed after the measurement is taken, the new converted measured value (f stop value) will be displayed.
2-4 Cordless multiple flash (cumulative) mode
These measurements are used when the light generated by the flash is inadequate for proper exposure. The repeated flash pops can be accumulated until the desired aperture is displayed. The cumulative number is infinite. Only one digit is displayed if the cumulative number is ten or more. Display returns 0 (0=10, 1=11, 2=12 etc.)
To activate Multiple cumulative mode, please set Custom setting no.6 and Item no.1.
1.Hold down the Mode button ⑩ and turn the Jog wheel ⑤ to select flash measurement cordless
multiple flash (cumulative) mode 
.
Turn the Jog wheel to set shutter speed. When setting shutter speed, first check the settings to confirm that they correspond to the settings available on the camera.