Thermo Scientific 50135178 AFT 3 Operating Instructions Manual page 44

T
Fault message:
"Lim. Val. pure w."
Fault message:
"UV time"
Fault message:
"Pretreatment"
Fault message:
"Meas. Cell LF1"
Fault message:
"Meas. Cell LF2"
Fault message:
"Temp. Meas. Cell"
44
- Filter cartridge exhausted
- Limiting value set too low
- The max. Operating hours
of the UV-lamp have been
exceeded
- The max. Operating hours
of the pretreatment have
been exceeded
- Break in the measuring
cell cable
- System control defect
- Conductivity of pure
water outside the
measuring range
- Break in the measuring
cell cable
- System control defect
- Conductivity of the
feedwater outside the
measuring range
- Break in the measuring
cell cable
- System control defect
Thermo Fisher Barnstead Pacific AFT
Pure water system
- Replace the filter cartridge
(Art.-no.: 09.4011)
- Check/adjust limiting value
- Replace the UV-lamp
(Art.-no. 09.4002) and
reset the operating hours
counter
- Replace the pre-treatment
and reset the operating
hours counter
- Replace the measuring
cell
- Replace the system
control
- see "Resistance
< 18.20 MΩxcm "
- Replace the measuring
cell
- Replace the system
control
- see "Feedwater limiting
value"
- Replace the measuring
cell
- Replace the system
control