Thermo Scientific LabTower AFT 20 Operating Instructions Manual page 51

3. Pull out the adjusting knob of the pressure reducer. The pure water pressure is reduced by
turning this knob anti-clockwise and increased by turning it clockwise.
The pressure change can be read off from the manometer.
4. After having adjusted the pure water pressure, press in the adjusting knob of the pressure
reducer to lock it.
After return to „Normal use" the pressure reducer is to be adjusted likewise
again.
The system can only be used for a limited time in emergency mode, i.e. until the capacity of the
ion exchanger is exhausted.
One ion exchanger should always be kept available as reserve.
Please inform Service immediately when you switch your system to emergency supply.
The address to contact should you need service: see chapter „Trouble shooting".
Thermo Scientific Barnstead LabTower AFT
Pure water system
51