The control of the mechanism for resetting the clock must be located inside a case containing the record sheet; each opening of that case must be automatically recorded on the record sheet.
Ní mór an rialtán don mheicníocht chun an clog a athshocrú a lonnú taobh istigh de chásáil ina bhfuil an leathán taifid; ní mór gach oscailt den chásáil sin a thaifeadadh go huathoibríoch ar an leathán taifid.