WCU410 and WNI410 | Electroless Copper & Nickel Controllers0 pages
W A L C H E M
nnnni ■ A ■ „ WCU410 and WNI410 I Electroless Copper & Nickel Controllers
nnnnAn Iwaki America Company
nnnnOVERVIEW
nnnnWalchem's WCU410 Copper Controller and WNI Nickel Controller are opto-
nnnnelectronic on-line analyzers that measure the actual concentration of copper
nnnnor nickel in solution. They are used in a variety of applications including
nnnnelectroless plating baths and microeth baths (including oxide-replacement
nnnntypes).
nnnnThe WCU410 may be switched from electroless copper to microetch via
nnnnthe menu, eliminating the need for a second controller. It reduces the need
nnnnfor manual titration, improves yield, and in microetch applications improves
nnnnproductivity by reducing the frequency of bath change-outs.
nnnnThe WNI41 0 is available as nickel-only, or with a pH control option which
nnnnmay be added in the field. Two separate pump outputs for nickel and
nnnnreducer and another for pH are used, each of which is capable of totalizing
nnnneither pump on-time, volume pumped, or metal turnovers.
nnnnIntegrated datalogging is available to validate system performance. A
nnnnUSB memory stick is all that's needed to extract data and event logs that
nnnninclude copper or nickel measurements, and relay status. Download logs
nnnnfrom the USB stick to a PC at your convenience. It couldn't be easier!
nnnnSUMMARY OF KEY BENEFITS
nnnn©
nnnnConcentration Read in Units
nnnnSelectable between grams per liter (g/L) or ounces per gallon (oz/gal). Backlit digital display also acts as a
nnnnbar graph for a continuous "visual summary" of measurement versus set point.
nnnn©
nnnnOperator Adjustable
nnnnConcentration set point, alarm set points (high and low), dead band and pump on time are all easily adjustable.
nnnnAn interlock feature allows external devices (such as a flow switch ) to interlock control relays.
nnnn©
nnnnSimple, Integrated Data Collection
nnnnDownload stored data from the controller to a USB stick. Use the data to simply and easily P*
nnnnvalidate system performance. The data and event logs show copper or nickel values, as
nnnnwell as accumulated chemical feed and relay activation times.
nnnn90 III
nnnn©
nnnnFour Separate Control Relays & Outputs (WCU)
nnnnMay be used to add copper, caustic, formaldehyde or chelator/stabilizer chemistries. Each output has a
nnnnreplenishment totalizer which may be set in units of time or volume.
nnnnOptional pH Input Board (WNI)
nnnnMay be used to add pH adjustment chemistry. Output has a replenishment totalizer which may be set in units
nnnnof time or volume.
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