QED MP30, Инструкция по эксплуатации

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OPERATION
3
Drawdown Control Point Selection
The Drawdown Control probe can be positioned using one of several different approaches.
First, it can be lowered directly to the point of maximum desirable drawdown. Secondly, it can
be lowered just part of the distance to the maximum drawdown point, for quicker feedback of
the response between purge flow rate and drawdown. For example, if 10 inches of maximum
drawdown is desired, the probe could be initial-ly lowered to just 5" or less below the static
water level. Then, if purgeflow exceeds well recovery, a quicker response indication of this
imbalance will be signaled than in waiting for the whole 10" to be drawn down, and purge flow
can be reduced sooner to achieve equilibrium of purge flow with well recovery.
Drawdown Control Response with MicroPurge basics controllers
Refer to the manual for the Micropurge basics controller for detailed information. In general,
when the Drawdown Control mode is switched "ON" and the probe becomes dry, the controller
display will indicate "LVL" in the upper left-hand corner of the controller display, and the con-
troller will pause pump operation until the probe again becomes submerged.When the probe is
again submerged, the basics controller will eliminate the "LVL" display, count down through the
current pump refill time setting, then resume pump operation with the currently set values.
MP30 Auto Shut Off
The MP30 has an automatic shut off feature. This feature is to conservebattery power should
the unit be left on when not in use. If the probe isno longer submerged and it takes more than
10 minutes for the water level to recover such that the probe is submerged again, the MP30
willshut off.The unit will need to be turned back on again. In some cases the drawdown point in
the well may be lowered to compensate for slowwell recovery. Consult regulatory consider-
ations before adjusting any purge protocols.