Dalsa Spyder3 SG-34-04k80-00-R User Manual page 51

Spyder3 SG-34 GigE Vision Color Manual
Dark Current
Clear
Mode
Immediate
Readout
0Hz
Table 12.
Model
SG-34-02K80
SG-34-04K80
Immediate read out mode (Off)
In this m od e the im age is read ou t, inclu d ing accu m u lated d ark cu rrent, im m ed iately follow ing the
trigger or the EXSYN C falling ed ge.
There are no line rate lim itations other than the am ou nt of gate d ark cu rrent that can be tolerated at low
line rates.
There are no tim ing or exp osu re anom alies other than situ ations w here EXSYN C is rem oved from
cam era. In this case, the cam era w ill op erate in a "w atchd og" state.
For inform ation on artifacts that m ay be exp erienced w hile u sing this m od e, see the Artifacts section
below .
Gate dark current clear mode (On)
In this m od e the gate d ark cu rrent w ill be cleared continu ou sly.
After the trigger (EXSYN C) is received , the d ark cu rrent is cleared from the im age sensor before the
im age is acqu ired . The line rate is lim ited to ½ the m axim u m line rate available for that m od el of cam era.
For inform ation on artifacts that m ay be exp erienced w hile u sing this m od e, see the Artifacts section
below .
Table 13.
Model
SG-34-02K80
SG-34-04K80
When op erating in the d ark cu rrent clear m od e, there w ill be a slight d elay, equ ivalent to one read ou t
tim e, before the actu al exp osu re is im p lem ented . The actu al exp osu re tim e w ill not be altered .
Teledyne DALSA
Dark
Current
Clear to
Immediate
Readout
Transition
Frequency
Watchdog
Frequency
Increasing Line Rate
Frequency
Figure 26: Gate Dark Current Clear
Dark Current Clear to
Immediate Readout
Transition
6767 H z
3518 H z
Immediate Readout
Mode
18000 H z
9000 H z
Immediate
Readout to
Dark
Current
Clear
Transition
Frequency
Max. Line Rate in
Dark Current Clear
Mode
Transition Frequencies
Immediate Readout to Dark
Current Clear Transition
8176 H z
4257 H z
Max. Line Rate
Dark Current Clear Mode
9000 H z
4500 H z
51
Max. Line Rate in
Immediate
Readout Mode
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