ALLIED Vision Technologies Pearleye P-030 LWIR - Manual (Page 28)

Camera interfaces
Pearleye Technical Manual V2.3.0
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An indication of sensor temperature being too low results in a degradation of
image quality and inexact temperature measurement. If this control output
does not become inactive after some minutes of operation, the ambient air tem-
perature of the camera might be too low.
To resolve this, heat up the camera temperature above approx. 15 °C (Pearleye
P-030 LWIR) or 25 °C (Pearleye P-007 LWIR). Use for e.g. a temperature-
controlled air-flow housing.
Sensor temperature too high (pin 14)
An indication of sensor temperature being too high results in a degradation of
image quality and inexact temperature measurement.
If this control output is permanently active already after some minutes of oper-
ation, the environment temperature of the camera might be too high. A suffi-
cient cooling of the camera is obligatory.
Pearleye P-007 LWIR For ideal results the camera housing temperature should be lower than 45°C.
Pearleye P-030 LWIR For ideal results the camera housing temperature should be lower than 35°C.
Frame-sync output (pin 15)
Voltage Logical Level Description
≤ 0.8 V low Sensor temperature too high
> 4.0 V high Normal operation
Table 8: Sensor temperature too high
Figure 6: Frame-sync output (Pearleye P-007 LWIR)