Instantel Blastmate III, Руководство оператора

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Appendix
A-6
BlastMate III Operator Manual
d) Calculating Battery Life
The BlastMate III battery life depends on current draw, battery longevity, and ambient
temperature.
Battery Life versus Current Draw
Battery life depends on battery capacity and current draw. Battery capacity is stated in ampere
hours and is the product of discharge current and discharge time. With a fully charged battery, the
BlastMate III has a battery life of 30 days in continuous monitor mode. If you use the Timer for
eight hour daily monitoring, the battery life increases to approximately 70 days in monitor mode.
An optional extra battery can be installed in the monitor to almost double battery life.
Note: Histogram record mode consumes more battery power than the other recording modes.
We recommend connecting a monitor to the AC adapter or an external 12 VDC power
supply.
Aggregate Sample Rate
The aggregate sample rate (sample rate x the number of recording channels) measures the effect
of choosing combinations of sample rates and recording channels. The following table lists the
approximate battery life at various aggregate sample rates. The first section applies to the
continuous record mode. The second section applies to the histogram record mode.
Battery Life
Aggregate Sample Rate BlastMate III 4 Channel BlastMate III 8 Channel
65536 6.9 days 6.2 days
32768 11.7 days 10.2 days
16384 17.7 days 14.4 days
8192 24.3 days 18.3 days
4096 30.0 days 21.3 days
2048 33.6 days 23.1 days
1024 35.4 days 24.6 days
512 36.2 days 27.9 days
Histogram Interval BlastMate III 4 Channel BlastMate III 8 Channel
2 seconds 3.43 days 2.73 days
5 seconds 3.56 days 2.75 days
15 seconds 3.69 days 2.77 days
1 minute 3.84 days 2.78 days
5 minutes 3.84 days 2.78 days
15 minutes 3.84 days 2.78 days
Note: sufficient memory capacity must be available.