VWR Puranity TU 12 UV+, Instruction Manual

Page: 74 / 84

| Trouble shooting
66
|
Puranity TU+ VWR
Chapter 15
Water leak Leaky tubing connection
Feedwater pressure > 6 bar
Component defect (e.g. UV
quartz tube)
Check and seal the tubing
connection
Install a pressure reducer
Contact the VWR service
department
Dispensed water flow rate is too low Ultrafilter is blocked
0.2 micron final filter is blocked
Air in 0.2 micron final filter
Replace ultrafilter (see
“Changing the ultrafilter” on
page 56)
Replace the 0.2 micron final
filter
Vent the 0.2 micron final filter
Error message:
Red LED in second line is light up
“Limit value Cond.“ exhausted ultrapure cartridge
Limiting value set too low
Replace with new ultrapure
cartridge
Check and reset the limiting
value
Error message:
Red LED in second line is light up
“Limit value Temp.“ Temperature in system is too
high
Limiting value is set too low
Feedwater temperature is too
high
Reduce temperature by letting
water flow out
Check and reset the limiting
value
Reduce the feedwater
temperature
Error message:
'Red LED in second line is light up
“Status Sens.“ Interruption in cable to
conductivity measuring cell
Measuring cell defect
Check the cable and plug
connection
Contact VWR for replacing
Error message:
Red LED in second line is light up
“Status Sens.“
The display shows “- -” with audible
alarm. Interruption in cable to
conductivity measuring cell
Temperature sensor in
measuring cell defect
Check the cable and plug
connector
Contact VWR for replacing
Error Cause Remedy