How can the speed of the Lachat RP-150 pump be checked?

Document ID

Document ID TE9068

Version

Version 2.0

Status

Status Published

Published Date

Published Date 09/18/2018
Question
How can the speed of the Lachat RP-150 pump be checked?
Summary
Pump speed test
Answer
Do the steps that follow to make sure that the pump speed is correct.
 
1. Use an accurate watch or chronometer to measure the time for the pump to make 10 revolutions.
 
2. Remove all pump cartridges from the pump. Look for the index marks as shown below. Index marks let the pump revolutions be counted. Manually move the rollers to find the index mark on the roller mounting. If either mark is hard to read, make new index marks with a marker.
 
3. Attach a new green-green pump tubing. Make sure that the tension lever is set correctly at the 12 o'clock (vertical) position.
 
4. Set the pump power to on. Push NORMAL RUN. The display must show a speed of 35 to continue this test. 
If the speed is not at 35, use the up
and down arrow buttons to adjust to 35.
 
5. Use an accurate watch or chronometer to measure the time for the pump to make 10 revolutions. Make sure the time is 50 seconds ±1 second.
 
6. If the recorded time is less than 49 seconds or more than 51 seconds, contact technical support.




 

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