The CALVER80 and CALVER81 programs are no longer available for download. The equipment required to run these programs is obsolete and no longer supported by its original manufacturer.
Fluke still supports the Fluke and Phillips models PM6681 and PM6681R. If your PM6680/81 requires adjustment, it must be sent to an authorized Fluke Service Provider. For more information about these services, or to request a quote, call 877-292-3225, complete an online request for service form, or send email to firstname.lastname@example.org.