Mp50 Battery - QED MP50 Instruction Manual

Operation
In User Set mode the CPM and UP, DOWN keys function differently than MP mode. The CPM
key becomes a key used to select the digits of the refill and discharge time settings found at
the rightmost positions on the display. The UP and DOWN keys are used to adjust the digit
value up or down. By selecting and adjusting digits up and down a user can quickly set any
time from 00.1 seconds to 99.9 seconds. Sampling in User Set mode is the same as explain-
ed, above, for MP mode.
The MP50 does not attempt to translate a user set time into a corresponding ID or CPM. Also,
any settings you have entered in MP or ID modes are lost once you press the MODE key to
enter MN mode.
Note: changes in time settings that are entered while the controller is cycling are reflected on
the next cycle change (so a long refill time of 15 seconds will time out before a new refill time
becomes valid).
MP50 Battery - The MP50 features sophisticated power-supply circuitry that optimizes battery
life. A fresh set of AA batteries will provide more than 100 hours of controller operation at
normal operating temperatures. As ambient temperatures drop below 15-20˚F (-9˚C to -6˚C),
the ability of the alkaline batteries to deliver energy is affected. Continuous operation may be
difficult in extremely cold conditions. Once the batteries and MP50 warm, additional cycle cap-
acity will be regained from a set of batteries.
Replace alkaline batteries by removing the 4 thumbscrews located on the battery cover and
inserting 3 fresh cells. The MP50 battery holder includes space for 3 spare AA cells so you
should never be without power in the field. Properly dispose of the spent alkaline cells.
Note: If you are storing the MP50 for more than 3 months, remove the AA batteries to prevent
leakage. The MP50 power supply is automatically shut off by closing the lid. Make sure the lid
is closed during storage.
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