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MSP250 Manual Sampling Pump Operation:
1. Connect battery by sliding connector on red wire onto positive (red) battery post. Slide connector on
black wire onto negative (black) battery post.
2. Close case and latches.
3. Place intake hose in source fluid.
4. Place discharge hose in sample container.
5. To take a sample, push switch upward (toward “draw”). To purge (reverse the pump), push switch
downward (toward “purge”).
6. Return switch to the center “off” position to stop pump.
Warnings:
1. DISCONNECT BATTERY BEFORE REMOVING CLEAR PUMP COVER OR INJURY
MAY OCCUR.
2. If MSP250 Manual Pump is used with the handle pointing upward, lay case flat and run pump to
completely clear fluid from lines or spatter may occur.
3. Keep inside of electronics enclosure and battery dry at all times.
Replacing Pump Tubing
The pump tubing on the MSP250 Manual Sampling Pump does not need to be replaced frequently;
however, it should be inspected periodically for wear or damage. Watch for cracking or creasing, which
can indicate it is time to change the tubing. Manning recommends using PharMed® tubing for the best
performance.
To replace the pump tubing:
1. Loosen the four thumbscrews that hold the pump in place. There are four sealing washers attached
to the pump body with adhesive. Make sure these stay in place.
2. Remove the four long screws.
3. Separate the two halves of the clamshell pump and remove the old tubing.
