4-5
Operating Instructions
Operator Manual
122998-741
4.3.1 Pre-Wash (Standard)
1.
Hot water, from building supply, fills sump until set water level is
attained:
NOTE: Sump may contain rinse water retained from previous
cycle.
CYCLE 10
135.7 F
PREWASH FILL
2:00
2.
Pre-Wash water recirculates through oscillating jet system for
programmed time:
CYCLE 10
139.5 F
PREWASH 1:00
3.
Printer records time and water temperature in chamber sump at
beginning and end of recirculation:
PRE-WASH
10:18:15A 139.5
10:19:15A 135.0
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4.3.2 pH Neutralization
1.
pH analyzer is initialized:
STANDBY -
NEUTRALIZING SUMP
2.
pH analyzer verifies that value is within limits:
CHECKING pH
pH = XX.XXX
3.
If pH is too low, while injecting, acid neutralizer is injected to
compensate:
pH TOO LOW
INJECTING ACID NEUT.
4.
Water-Acid neutralizer solution is mixed:
pH TOO LOW
MIXING WATER
5.
If pH is too high, while injecting, alkaline neutralizer is injected to
compensate:
pH TOO HIGH
INJECTING ALK. NEUT.
... alternating with:
pH TOO HIGH
MIXING WATER
WARNING – BURN HAZARD:
Water discharge may be
extremely hot.