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Palm's Instruments Division Model 250 Conductivity Controller Palm’s Model 250 solution
conductivity controller utilizes an inductive field sensor, mounted
in the tank, to measure the conductivity of solutions on a continuous
and instantaneous basis. Since the conductivity of most liquids
is directly related to their concentration, their strength can
be rapidly and accurately determined by this technique. The controller
can then compare this result to a preselected setpoint, and make
additions of liquid replenishers to maintain the concentration
of the bath within its optimum operating range. In the plating industry, this
technique is most commonly used to control alkaline cleaners,
but it is equally applicable to any conductive solution, such
as chromates, zincates, or rinses. In the process industries,
conductivity monitors have also been used to control cooling
waters and steam condensate, to make chemical dilutions, and
to detect unwanted dissolved solids. The Model 250 monitor/controller
is a totally solid state instrument built into a dedicated microprocessor.
The probe is made of polypropylene and has no threads below solution
level. The electronics inside the probe are sealed in a resin
to ensure ruggedness and stability. The Model 250 comes standard
with one polypropylene sensor that is 30" long and one relay.
Longer probes may be ordered. SPECIFICATIONS - Power: 110/220 vac |
