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Operating and Maintenance Manual
Scientek Washer Model SW-6000
Revision-3, Sept. 2007
5-8
5.2.5 pH Alarm Screen:
(Optional, only if pH control system is installed)
After the Wash-1 and Wash-2 stages, prior to draining, the system will check the pH level,
based on the LOW alarm and HIGH alarm signal from the pH controller. If either alarm signal
is present the system will initiate the neutralization process.
If the HIGH pH alarm signal is present, the system will engage the Neut-1 pump, and if the
LOW pH alarm signal is present, the system will engage the Acd Neut pump.
If the pH level can not be corrected in specified time period (see section 7.11) an alarm will
be generated and this screen will be shown. The operator has option to repeat the
neutralization stage or to proceed with the drain stage. A message ‘DRAIN .. pH LOW –
MANUAL OVERRIDE’ will be printed.
Pressing the button will toggle the selection between ‘REPEAT NEUTRALIZATION’ and
‘DRAIN ( ignore pH )’.
After selection is made return to the operation screen, acknowledge the alarm and press the
Start pb to activate selected procedure.
Scientek Technology Corporation
Tel: (604) 940-8084
7943A Progress Way, Delta, BC V4G 1A3
Fax: (604) 940-8085