LabTower EDI
Ultrapure water system
44
Fault message:
Lim.val.permeate"
- The conductivity of the -
permeate is too high
- The limiting value is set too
low
- The membrane is blocked
- Check the pre-treatment
- Check and re-adjust the
limiting value setting
- Replace the membrane
Fault message:
Lim.val.EDI"
- The conductivity of the -
product water is too high
- The limiting value is set too
low
- The EDI cell is damaged
- Check the permeate
conductivity
- Check and re-adjust the
limiting value setting
- Replace the EDI cell
Fault message:
"
Lim.val.pure w
"
- The limiting value is set too
low
- Check and re-adjust the
limiting value setting
Fault message:
"UV-time"
- The operating hours of the -
UV-lamp have been
exceeded
- Replace the UV-Lamp (art.- -
no. 09.2002) and set back -
the operating hours counter
Fault message:
"Measuring cell LF1"
- Cable break at the measur-
ing cell
- System control defect
- Ultrapure water conductivity
outside of measuring range
- Replace the measuring cell
- Replace the system control
- see "Lim.val.pure w"
Fault message:
"Measuring cell LF2"
- Cable break at the measur-
ing cell
- System control defect
- Feedwater conductivity -
outside of measuring range
- Replace the measuring cell
- Replace the system control
- see "Lim.val.permeate"