Chemtrac Systems, Inc.
Page 48
TYPE OF CONTAMINATION CLEANING PROCEDURE
Mineral scale from alum/lime addition Comet or other Abrasive Cleaner
Deposits caused by raw water
iron/manganese, or where ferric salts or
potassium permanganate is used for
treatment.
ROVER (available from Hach Chemical)
1 spoonful per pint tap water
Organics from raw water or where
polymers are used.
Comet or other Abrasive Cleaner
Oil/Grease Comet or other Abrasive Cleaner
A “soak and brush” method is recommended for any contaminant. Soak only long
enough to dissolve/remove the material. Probe surfaces should be thoroughly washed
with clean water to remove any residual cleaning compound.
CAUTIONS
R Do not soak entire probe cartridge, only soak inside the bore. Acid concentration
shall not exceed 15% concentration.
6.3 REPLACEMENT PARTS
Figure 12 AND 13 illustrates Dura-Trac and Dura-Trac II sensor parts identification with
part numbers. Table below lists recommended replacement parts.
Part Number Description Replacement Interval
1701 Delrin Piston 1 to 2 years
8601 Probe Cartridge 1 to 3 years
1301 110VAC Drive Motor 3 to 5 years
5017 Viton Diaphragm 3 to 5 years
8702 Probe Washer If Lost
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