Hamamatsu Photonics C8484-16C Instruction Manual page 21

9-4-1-2 Exposure time setting: Electronic shutter
Exposure and readout repeat along with the operation of the electronic shutter according to the
sequence set internally. The exposure time (electronic shutter time) is set with the SHT n
command. This setting is made in units of one horizontal scan cycle.
(1) Normal readout
Exposure and normal readout repeat according to the sequence set internally.
Command
Scan mode
Exposure time
1H (horizontal) :
Setting count
Repeat cycle
Exposure time cane be calculated using the formula below.
Exposure time = 12.4 µs + (n-1) × 79.3 µs
CCD exposure
Electrical
shutter signal
Readout signal
from CCD chip
Digital data
output
(2) 2×2 binning readout
Exposure and 22 binning readout repeat according to the sequence set internally.
Command
Scan mode
Exposure time
Binning
1H (horizontal) :
Setting count
Repeat cycle
Exposure time can be calculated using the formula below.
Exposure time = 20.5 µs + (n-1) × 87.4 µs
CCD exposure
Electrical
shutter signal
Readout signal
from CCD chip
Digital data
output
: AMD N (Free running mode)
: SMD N (Normal)
: NMD S, SHT n (Shutter)
79.3 µs
: 1H to 1055H
: 11.9 Hz
Exposure time = SHT n
: AMD N (Free running mode)
: SMD S (Binning)
: NMD S, SHT n (Shutter)
: SPX 2 (2×2 binning)
87.4 µs
: 1H to 535H
: 21.3 Hz
Exposure time = SHT n
C8484-16C Instruction manual Ver.1.5
(n=1 to1055)
Readout period
(n = 1 to 535)
Readout period
19