Endress+Hauser TOC Analyzer CA78 Operating Instructions Manual page 25

TOC Analyzer CA78
1) If installed and enabled in the Settings menu, an empty field is displayed otherwise.
Endress+Hauser
 15 "Provide SST solutions" message
The system must be switched on one hour before the SST starts so that a suitable
operating temperature is reached. The SST solutions must be warmed to at least room
temperature beforehand. If temperatures below 18 °C are displayed at the start of the
measurement, the measurement must be stopped until the SST solutions have at least
reached room temperature. The optimum temperature range is between 20 °C and 25
°C as the starting temperature for the SST measurement.
Performing a system suitability test
1. Connect the SST solution with the required concentration of sucrose to INPUT 1.
 The SST is performed semi-automatically with all the configured parameters
from the Settings →  27 menu.
After the repeat measurements, the system stops and a pop-up window appears
asking the operator to connect the benzoquinone solution to INPUT 1.
2. Connect the benzoquinone solution to INPUT 1.
3. Close the pop-up window by pressing the OK key.
 The process must be repeated for the water solution.
It is recommended to repeat the measurement series three times. The standard
volumes used are 500 ml and suffice for several measurements. The measurement
results should be constant within this measurement series and be close to one
another.
8.3.4 System
A function check on the following components can be performed in this menu:
• Starting of the pump (normal < or fast <<<)
• Switching of the valves
• Switching on of the UV reactor
• UV sensor (detection of the intensity of the UV lamp)
• Check of the sensor signals (C1/C2)
• Check of the static pressure (option)
• Leak sensor
• Resetting of the operating hours (pump)
• Resetting of the operating hours (UV lamp)
• Check of the analog outputs
• Check of the digital outputs
1)
Commissioning
A0046957
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