Temperature control
195
Goldeye G/CL Technical Manual V4.1.1
Temperature setpoint settling time
If the setpoint of the sensor temperature controller is changed, it takes approx.
half a minute until the desired temperature is reached. During this period, the
image quality may be reduced to some degree.
Example for Goldeye CL-033 TEC1
This example explains the functionality of the single-stage TEC1. It is shown in
Figure 64.
The Goldeye CL-033 TEC1 has four temperature setpoints: +5 °C, +20 °C (Default),
+35 °C, and +50 °C. It can achieve a maximum temperature difference of 25 K
between housing and sensor.
For this example, it is assumed that during operation, the case temperature of a
Goldeye CL-033 TEC1 has leveled at approx. +48 °C. Thus, the minimum sensor
temperature the TEC can reach is +23 °C. It cannot reach the default setpoint at
+20 °C.
As a result, the CL-033 TEC1 switches to the lowest setpoint it can reach, which is
at +35 °C, and keeps the sensor at that temperature.
Example for Goldeye G-032 Cool TEC2
This example explains the functionality of the two-stage TEC2.
The Goldeye G-032 Cool TEC2 has three temperature setpoints: -20 °C (Default),
-5 °C, and +10 °C. It can achieve a maximum temperature difference of 60 K
between housing and sensor.
For this example, it is assumed that during operation, the case temperature of a
Goldeye G-032 Cool TEC2 has leveled at approx. +38 °C.
Because the temperature difference achievable is 60 K, the TEC can reach the
default setpoint at -20 °C.
Figure 64: Cooling capabilities of Goldeye TEC1 models (example)
-21 °C
-10 °C
0 °C
10 °C
20 °C
30 °C
40 °C
50 °C
Ambient temperature
Default setpoint (sensor)
Exis
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ng setpoint (sensor)
Housing temperature
DŝŶ͘ȴdсϮϱ<
Default setpoint
not reachable
Lowest possible
setpoint: +35 °C
