User`s manual

AW00089316000 Image Acquisition Control
Basler ace GigE 109
7.6 Setting the Exposure Time
All Models Except the acA2500gm/gc
If you are operating the camera in any one of the following ways, you must specify an exposure time
by setting the camera’s Exposure Time Abs parameter:
 the frame start trigger mode is set to off
 the frame start trigger mode is set to on and the trigger source is set to software
 the frame start trigger mode is set to on, the trigger source is set to line 1, and the exposure
mode is set to timed.
The Exposure Time Abs parameter must not be set below a minimum specified value. The minimum
setting for each camera model is shown in Table 12.
The maximum possible exposure time that can be set is also shown in Table 12.
This section (Section 7.6) describes how the exposure time can be adjusted
"manually", i.e., by setting the value of the exposure time parameter.
The camera also has an Exposure Auto function that can automatically adjust the
exposure time. Manual adjustment of the exposure time parameter will only
work correctly, if the Exposure Auto function is disabled.
For more information about auto functions in general, see Section 10.12.1 on
page 282.
For more information about the Exposure Auto function in particular, see
Section 10.12.5 on page 293.
Camera Model Minimum Allowed
Exposure Time
Maximum Possible
Exposure Time
acA640-90gm/gc 17 µs 1000000 µs
acA640-100gm/gc 4 µs 1000000 µs
acA645-100gm/gc 20 µs 10000000 µs
acA750-30gm/gc 30 µs 1000000 µs
acA780-75gm/gc 20 µs 10000000 µs
acA1300-30gm/gc 16 µs 10000000 µs
acA1600-20gm/gc 25 µs 1000000 µs
acA2000-50gm/gc 24 µs 1000000 µs
acA2000-50gmNIR 24 µs 1000000 µs
acA2040-25gm/gc 24 µs 1000000 µs
acA2040-25gmNIR 24 µs 1000000 µs
Table 12: Minimum Allowed Exposure Time Setting and Maximum Possible Exposure Time Setting