Service Manual for FNDX 5
08/2009 FR
Page 10
8.1.1 PROCESSOR FUNCTIONS
Programming:
Automatic processing parameters, e.g., temperature, speed and replenishment rates, can be stored
in 9 different programmes.
Warm-Up Time:
Once programmed, temperature settings are accurately controlled. Constant solution temperatures
are maintained in the processing tanks. Temperatures tole/- 0.2 °C are achieved by the
microprocessor control unit while the solutions are circulated by circulation pumps.
When temperature has reached PRE-SET levels, the processor enters STANDBY mode and
is ready for use.
Standby:
In case no film is in process - after a fixed period of time and when, after the last plate leaves the
dryer, the processor transport, dryer and water supply is switched off automatically. The processor
goes to standby mode. During standby, the processor activates two important features:
ANTI-OXIDATION and ANTI-CRYSTALIZATION programmes.
Anti-Oxidation:
During STANDBY mode - and in long periods of no production, a preprogrammable
ANTI-OXIDATION cycle (replenishment cycle) is initiated. The additional replenishment
compensates the impact of air oxidation of the chemistry during standby mode and maintain
chemistry levels in the tanks, in order to compensate evaporation of the water in the solutions.
Anti-Crystalization:
During STANDBY mode - within a programmable cycle period - the transport rollers and the gum
pump are activated - this helps to prevent crystalization build-up on the rollers.
Automatic Replenishment:
The processor is equipped with a film area measuring system. Infrared sensors scan the incomming
plate area and when the preprogrammed amount of plate (area) enters the processor,
a replenishment cycle will be activated.
Automatic (Start-Stop):
Infrared sensors also automatically control the startcycle of the filmprosessor. The filmprocessor
changes from STANDBY to RUN once a film has interrupted the light barrier. As the rollers turn,
water is supplied to the wash tank and to the intermediate rinse bath system. Once the last film has
passed through, the filmprocessor reverts to STANDBY. The film can be taken out of the receivin
basket or top cover lid.
9.1.1 ADDITIONAL SAFETY DEVICES
*)
Thermostatically controlled solution heater with overheating CUT-OUT and AUTO-RESET.
*)
Thermostatically controlled dryer heater with overheating CUT-OUT and MANUAL-RESET.
*)
All electric motors are equipped with thermal CUT-OUT and AUTO-RESET.
*)
Each electrical component is protected by a fuse on the power distribution board (PDB).