CDP301 Dew-Point Tester User’s Manual
14 97585 Issue 1, June 2020
OPERATION
Step: Mirror temperature setpoint step change as congured in MANUAL INCR for
Manual mode only
Rate: Mirror temperature setpoint rate of change as congured in AUTO RATE for Auto
mode only
Units:
• Degrees; C or F
• Pressure; barG, MPaG, psiG
Status: Measurement status of instrument. One of 5 states will be displayed:
• Start – Mirror temperature setpoint is set to the START TEMPR
• Measure – In normal measurement mode where user is controlling the
mirror temperature
• Cleaning – Mirror temperature setpoint is set to Tb + CLEAN TEMPR
OFFSET
• Limited – Mirror temperature has been capped or limited for safety.
Capped at Tb-MAX DEPRESS and Tb+CLEAN TEMPR OFFSET.
• Standby – The instrument sets the mirror temperature setpoint to the
Tb (body temperature) and turns o drive to the TEC (Thermo-Electric
Cooler) under these warning or error conditions:
• Mirror temperature error
• Enclosure temperature error
• TEC Fault
• Battery temperature
• The unit is manually set to standby
• After a system reset
Warnings: Active warning or error messages are displayed in turn.
• “Mirror temperature error” (Faulty mirror temperature sensor)
• “Enclosure tempr. error” (Faulty enclosure temperature sensor)
• “Pressure sensor error” (Pressure sensor malfunction)
• “Battery level” (Battery remaining capacity <10%)
• “Battery temperature” (Battery overheating to >80°C/176°F)
• “TEC fault” (Open/ short circuit TEC or wiring to it)
• “Battery Error” (Battery communication malfunction)
• “Camera comms” (Problem with communication between main board and
camera)
• “Control board comms” (Problem with communication between main
board and control board)
• “None” (No warnings or errors detected)
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