Spyder3 SG-34 GigE Vision Color Manual
51
Teledyne DALSA
03-032-20124-00
0Hz
Watchdog
Frequency
Max. Line Rate in
Immediate
Readout Mode
Increasing Line Rate
Frequency
Dark Current
Clear
Immediate
Readout
Dark
Current
Clear to
Immediate
Readout
Transition
Frequency
Immediate
Readout to
Dark
Current
Clear
Transition
Frequency
Max. Line Rate in
Dark Current Clear
Mode
Mode
Figure 26: Gate Dark Current Clear
Table 12.
Transition Frequencies
Model
Dark Current Clear to
Immediate Readout
Transition
Immediate Readout to Dark
Current Clear Transition
SG-34-02K80
6767 H z
8176 H z
SG-34-04K80
3518 H z
4257 H z
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.
Max. Line Rate
Model
Immediate Readout
Mode
Dark Current Clear Mode
SG-34-02K80
18000 H z
9000 H z
SG-34-04K80
9000 H z
4500 H z
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 .
