Exposure Time; Exposure Auto - JAI Elite EL-2800M-GE2 User Manual

The effect of the combination of Exposure Mode, Trigger Option and Trigger Mode is as follows.
Table20. The combination of Exposure Mode, Trigger Option and Trigger Mode
Exposure Mode
OFF
Timed
Trigger Width
7.2.2

Exposure Time

This command is effective only when Exposure Mode is set to Timed. It is for setting exposure time.
The setting step for exposure time is 1 μsec per step.
Minimum:
Maximum:
7.2.3

Exposure Auto

This is a function to control the exposure automatically. It is effective only for Timed.
ALC Reference controls the brightness.
There are three modes: OFF, Once, and Continuous.
OFF:
Once:
Continuous:
In this mode, the following settings are available.
ALC Speed:
Exposure Auto Max:
Exposure Auto Min:
ALC Reference:
ALC Channel area:
EL-2800M-GE2 / EL-2800C-GE2
Trigger Option
N/A
OFF
RCT
PIV
N/A
10 μsec
8 seconds
No exposure control
Exposure adjusts when the function is set, then remains at that setting
Exposure continues to be adjusted automatically
Rate of adjustment can be set(Common with Gain Auto)
The maximum value for the exposure range can be set
The minimum value for the exposure range can be set
The reference level of the exposure control can be set
(Common with GainAuto)
The measurement area of the exposure control can be set
- 62 -
Trigger Mode
(Frame Start)
Self-running operation
N/A Exposure control by Exposure Time
is not possible
Self-running operation
OFF Exposure control by Exposure Time
is not possible
Timed (EPS) Operation
ON Exposure can be controlled by
Exposure Time
Self-running operation
OFF
Exposure control is not possible
RCT operation
ON Exposure can be controlled by
Exposure Time
Self-running operation
OFF
Exposure control is not possible
PIV Operation
ON Exposure can be controlled by
Exposure Time
Self-running operation
OFF
Exposure control is not possible
Exposure is controlled by the pulse
ON
width of the external trigger
Operation