Thermo Scientific Barnstead GenPure with xCAD
Ultrapure water system
56
15. Trouble shooting
Fault
Cause
Remedy
The system does not start
- No supply of power
- Provide power
Dispensing not possible
- Feedwater tap is closed
- Feedwater and rinse water
connections mixed up
- Feedwater pressure
< 0.1 bar
- Open feedwater tap
- Correct the connections
- Increase feedwater pressure
Resistance < 18.2 M
Ω
xcm
- System has a UF-module
(higher conductivity
possible)
- Ion exchange capacity
exhausted
- Replace filter cartridge
with a new one
System control no longer
reacts
- Improper operation
- Unplug the mains plug for
5 seconds
Water flows out
- Leaky hose connection
- Feedwater pressure > 6 bar
- Check and seal the hose
connection
- Install a pressure reducer
Dispensed water flow rate is
too low
- UF-Module blocked
- Pre-pressure too low
- Internal pressure too low
- Replace UF-module
- Increase pre-pressure
- Readjust pressure reducer
Wrong time or date
- Time zone
- Summer/winter time
- Reset time and date
Wrong language
- Wrong language set
- Correct language setting
Fault message:
"Limit value feed"
- Feedwater conductivity
too high
- Limiting value set too low
- Check the pretreatment
- Check and suit the limiting
value