Aqueous Technologies introduces Zero-Ion G3

Specifically cited in MIL-2000A, the Zero-Ion ionic contamination tester is a resistivity of solvent extract (Rose) tester.

The Zero-Ion is used to determine the final cleanliness of post-reflow circuit assemblies as well as bare boards.

The Zero-Ion G3 is powered by a Windows-based PC and is the latest model in the Zero-Ion range.

A 19in (48cm) LCD user interface provides organised real-time process information.

Tabbed display screens organise both stored and real-time process data.

Built-in SPC data recording captures all relevant testing data.

An integrated SPC database look up allows users to search for desired data sets, including SPC results by date range, recipe name, board serial number and so on.

Cleanliness results may be stored for later viewing or may be printed onto any Windows compatible printer.

Additionally, the Zero-Ion G3 may be networked for remote viewing of all SPC data.

An optional bar code scanner provides one-touch entry of a board's serial number or other process data.

The Zero-Ion ionic contamination tester meets industrial cleanliness specifications including MIL-STD-2000A, MIL-P-28809, IPC-TM-650 and ANSI/J-STD-001B, IPC-TM650.

The submerged sprays are claimed to provide excellent agitation of the test solution while eliminating test inaccuracies caused by carbon dioxide adsorption associated with other open-air spray systems.

The combination of test-board submersion and immersion spraying creates an environment whereby all of the soluble contamination is extracted and measured.

Modern cleanliness testing frequently requires the testing of assemblies reflowed with no-clean solder paste.

The Zero-Ion G3 cleanliness tester uses a dynamic measurement technology, the method of choice for detecting (weak) ion activators commonly found in no-clean fluxes.

With dynamic measurement technology, the contaminated test solution is monitored and then filtered to supply de-ionised test solution back to the test chamber, resulting in greater solubility/sensitivity.

The increased solubility eliminates the 'saturation limit effect' associated with other static measurement methods.

The Zero-Ion performs all tests at ambient temperature, eliminating the need for heaters and associated safety concerns.

Ambient temperature testing also reduces machine startup times and test solution evaporation.

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