Chennai-based mel systems and services ltd offers manufactures boardwizard testers. These boardwizard testers which are advanced board diagnostic and repair equipment designed to meet the needs of pcb repair and maintenance industry. The boardwizard testers use a variety of test methodologies and diagnostic tools that can be effectively used to trouble-shoot a wide variety of pcbs. The product is driven by aan external ibm compatible pc drives this product on which the test software runs. Some electric features of these boardwizard testers include:these boardwizard testers have provision for connecting external dc power supply and self-test and diagnostics software to check system integrity. Number of channels is 48 and expandable up to 96, and there are eight programmable guards expandable up to 16. The range of voltage for drive/sense level is 12 to +12 v and that of rcv measurement is 10 ohms to 300 k ohms. For routing external power through tester for software control application, the product has provision for routing external power through tester for software control application. Using automatic pull-up, ttesting of open collector devices is done using automatic pull-up, and by interactive vector programming interface, language free library development is achieved by interactive vector programming interface. These testers with clip on testing with auto locate feature identifies functional equivalents of unknown digital devices. Some general specifications of these boardwizard testers include: the specifications of the tester are as follows: * resolution: 12 bit * frequency: 15 hz to 7.68 khz * waveforms: sine, square, triangular, saw tooth as well as any user-defined waveforms * amplitude: 0.2 to 12 v pp in steps of 0.1 v * back driving: 650 ma sink / source * minimum clock tick: 2 micro seconds * maximum frequency at pin: 250 khz * skew: less than 20 n sec
