6. TEMPERATURE AND HUMIDITY CONTROL
The PILATUS3 R CdTe 100K-M detector has a combined temperature and humidity sensor. The temperature and humidity
control shuts down the detector when the humidity or the temperature of the sensor exceeds the following limits in table 6.1.
Table 6.1:
Temperature and humidity limits
Shutdown Temperature
Shutdown Humidity
Lower Limit
Upper Limit
Upper Limit
5
◦
C
35
◦
C
30 % at operation / 25 % at start-up
The communication with the detector control unit will remain active after a temperature shut down (only power of the modules
shuts down).
To start the detector correctly, please refer to chapter 7 and execute the correct start-up procedure.
Warning
#8
The temperature and humidity sensor cannot prevent condensation issues and resulting damage to the
sensor due to improper use. Always make sure that the detector is warmed up (thermal stabilization unit
temperature set to 25
◦
C) prior to pumping down, venting, and opening the chamber. Only use dry air or
nitrogen for venting.
For stable operation, a constant detector temperature is recommended. After switching on the detector, its temperature
will reach a constant value after about 30-60 min. If the temperature or humidity is out of range following error message
appears:
[]$_ Camserver Output
*** ERROR - temperature too high: 31.1C (channel
#2)
Bad return from dcbe_initialize()
Camera initialization error -- press <enter> to exit
Make sure that the cooling unit is running at the specified temperature (according to section 4.3) and that nitrogen or dry air
flow is turned on at the specified flow rate, given in section 5.4. Then restart the Camserver software.
The command THread in camserver displays the actual temperature and humidity of the sensors as shown below.
[]$_ Camserver Output
THread
Channel 1: Temperature = 25.7C, Rel. Humidity = 4.4 %
Channel 2: Temperature = 23.1C, Rel. Humidity = 8.2 %
PILATUS3 R CdTe 100K-M Technical Specifications v1.0.0
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