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Touch 1 / 1100-H+ Null Relay Modification
2 April 2010
Cirris Systems implemented a new "Null Relay" Touch1/1100H+ scanner daughter card design in January 2010. The new design resolves "high" contact resistance issues that began occurring in Omron relays after changes were made by the manufacturer to bring the components into RoHs compliance. Most frequently, this condition would be encountered as a failure in the zero-ohm portion of the performance check process with failure measurements ranging from a few tenths of an ohm to several ohms, although it could also produce high resistance failures while testing.
The new null relay scanner daughter cards can be used in all 1100H+ testers and in Touch1 testers with serial numbers 25000-T1 or higher. The new null relay cards cannot be used in the Signature 1000H+, 1000HX, 1000HN testers or in Touch1 testers with serial numbers beginning with the digits "10" (i.e. S/N 10XXX-T1).
SOFTWARE VERSION:Additionally, the new design requires that testers using the new null relay daughter cards be running the software versions specified below:
1100H Software Version 4.8a or higher
It should be noted that customers using equipment that meets the hardware requirements, but who are unable to upgrade to the required software versions for other reasons, will not be able to use the new scanner daughter cards in their testers. Such circumstances may include those companies that cannot upgrade their tester software because they have had their test processes approved in accordance with FDA regulations and cannot make any changes to their processes, including software modifications, without the prior approval.
Frequently Asked Questions:
How can I tell the new null relay scanner daughter cards from the older scanner daughter cards? The new scanner daughter cards released January 2010 will include a RED barcode label on the edge of the card and have the top corner of the printed circuit board card clipped at a 45 degree angle, as shown below.
Can I mix null relay scanner daughter cards with the older "white-labeled" scanner daughter cards?
What about my older Cirris HiPot testers that do not support the new scanner daughter design?
How will I know if 'null relay' daughter cards have been installed in a tester that cannot accommodate the cards due to hardware or software incompatibilities?
Serial Number NotesFirst serial numbers of testers built using the new null relay scanner daughter cards:
1100H+ (1,000vdc) - S/N 66400-1H
1100H+ (1000VDC w/64 test points) - S/N 2200-164
1100H+ (1,500vdc) - S/N 1529-H4
Touch1 (1,000vdc) - Base S/N 37601-T1; Expansion Box - S/N 36400-TA
Touch 1 1500V ?
Touch 1 with 64 points ?
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