LAR Process Analysers QuickTOC purity - Breakdowns

164 User Manual QuickTOC
®
purity
ATEX 2 04E3920
10 Minor Disruptions - Quickly Solved
10.2 Breakdowns LAR | PROCESS ANALYSERS AG
10.2 Breakdowns
This section provides information on and solutions for possible malfunctions with the measurement
system. Possible causes and actions are listed in the following table - the problem type is used as an
indicator. If you have questions, please contact your local partner or the Technical Support of LAR
(Chapter 15 on page 245).
Table 16: Troubleshooting
Problem Possible cause Actions
Analyser does not start
after connecting the power
supply plug and switching
the main switch to „ON“
• No voltage
• No power
• Check the fuses (Chapter 10.3 on
page 165).
• Switch on if necessary.
Software does not start/
Screen is black
• Main siwitch off
• Blown fuse(s)
• Switch on the analyser using the
main switch on the left side of the
analyser.
• Check the fuses (Chapter 10.3 on
page 237).
Cooler temperature is too
low or high
• Ambient temperature is
too low or high
• Cooler fuses are blown
• Cooler is out of order
• Ensure the ambient temperature is
between 5 °C - 35 °C.
• Replace the fuses
• Contact your local partner or the
Technical Support of LAR
(Chapter 15 on page 245)
Furnace temperature is too
low or high
• Furnace fuse is blown
• Connecting cable is
defective
• Furnace is defective
• Switch on the fuses
• Check the connections
• Contact your local partner or the
Technical Support of LAR
(Chapter 15 on page 245)
The difference of
temperature and
temperature regulator is
more than 10°C
• Thermocouple is not at
the right position or
defective
• Contact your local partner or the
Technical Support of LAR
(Chapter 15 on page 245)
Calibration values are not
plausible
• Calibration standard
empty or prepared false
• Produce a new calibration standard
• Perform a new calibration
Measurement values sway
strongly
• Sample vessels are
contaminated
• High particle density
• Bubbles in the injection
system
• System leaky
• Clean sample vessels
• Check injection system (glass
syringe)
• Check tighteness and rectify leaks
Measurement cannot start • Temperature of cooler or
furnace is not in the
allowed range
• Analyser is in
maintenance mode
• Purge air is not
connected
• No ex-protection
triggered on the control
unit
• Check the temperature of the cooler
and the furnace
• Check tubing and connections of the
purge air circuit
• Check the control unit