Uvitron International SUNRAY 400SM Instruction Manual, Rev. H
Page 15 of 23
EXTERNAL INTERFACE (CONTINUED)
7
The
Hour Reset Input
can be used to externally reset the number of hours displayed
on the SunRay’s front panel hour meter to zero. The hour meter should be reset when
installing a replacement arc
lamp so that the new lamp’s age can be easliy tracked
over its lifetime. To reset the hour meter, the Hour Reset signal at pin 6 should be
momentarily shorted to the +24VDC Out signal at either pin 8 or pin 14.
The
+24VDC Out
and the
+24VDC Return
connections on the SunRay DSUB interface
connector can be used to power external loads from the unit’s internal 24VDC power
supply. The 24VDC output can be used to supply up to 1 amp of current to external
loads by connecting
the load’s positive terminal to connector pin 8 or 14, and the
negative terminal to pin 7 or 15.
