SKC DataTrac for the Pocket Pump - Manual (Page 27)

25
Power User Hints
Power User Hints
Warning: The following notes are for users with thorough knowledge of DOS and Windows software.
Users must use extreme caution when altering .ini fi les.
Hibernate and Battery Life Information
The Pocket Pump features automatic powerdown (Sleep) mode aft er 5 minutes in Hold. In Sleep mode the pump and
the display are off , however, the internal circuitry is still operating.
This function allows the internal computer to keep track of time. Although the other electronic circuits within the pump
are turned off , the microprocessor draws a signifi cant amount of power from the batt ery.
If the pump is programmed with a running schedule, the pump will Sleep between the time it is programmed and the
time it is due to run. This will maintain the starting time information.
The pump is required to keep track of time, via an internal timer, to preserve the recording of operations in the history.
Aft er programs in the Pump Program Scheduler have been completed, the pump will enter Hold mode and the internal
timer will retain time for 24 hours. Aft er 24 hours, the timing mechanism will stop to preserve batt ery life. The timing
history up to this point is retained and the pump enters a low power state (Hibernate) to conserve batt ery life.
9 Oct 9 Oct 9 Oct 10 Oct
7:00 AM 9:00 AM 10:00 AM 10:00 AM
Pump Programmed Program Running Program Ends after 24 hours
Sleep Mode Run Mode Sleep Mode Hibernate
A fully charged and programmed pump will last for approximately 6 days in Sleep mode before the low batt ery
detection will switch it to the Hibernate state. (A program waiting to run will prevent the pump from entering the
Hibernate state until the low batt ery condition forces the pump into Hibernate). Although DataTrac will allow the
pump to be programmed up to 21 days in the future, it is advisable to load the program as close as possible to the
program start time. It is also important to download the pump history to a PC as soon as possible aft er sampling.
History and Hibernate
The History shows the state of the pump at any instant including Run, Hold, Sleep, Hibernate, Low Batt ery Hold, and
Flow Fault. All these states have a time of day associated with them, so that a correctly timed history may be produced.
When a pump is programmed, a time reference is loaded into the pump from the PC. When a history is read from the
pump, the time reference is compared with the current time on the PC to ensure the history timing is consistent.
If a Hibernate state has occurred in the history, the time reference of the pump state before the Hibernate will be
determined from the starting time reference and the time reference of the pump state aft er the Hibernate will be
determined from the current PC time at download.
If more than one Hibernate state has occurred, there will be running sequences that are bounded at their start and fi nish
by Hibernate states. These sequences will contain valid timing intervals; but when the PC reads the history, the actual
start and stop times will be unknown.
7 AM 9 AM 10 AM 3 PM
Sleep Run Sleep Hibernate Run Sleep Hibernate Run
Data downloaded to PC at
Pump programmed at
Start/Stop times intact
Start/Stop times lost
Start/Stop times can be calculated from the
download time and duration of RUN mode
(which is known)