Cole Parmer Masterflex L/S Pump Drive 07522-20 W/ 7519-20 Pump Head - AS IS 156972191117 There is a big scratch

There is a big scratch on one side

Manufacturer Newport Model Number FM-1 SKU 19-66366 Ref 23-94103

Manufacturer Mitsubishi Model Number HF-MP23B SKU 19-81487 Ref 23-118322

Manufacturer Tektronix Model Number 2337 SKU 19-80744 Ref 23-116451

Cole Parmer Masterflex L/S Pump Drive 07522-20 W/ 7519-20 Pump Head - AS IS 156972191117 There is a big scratchThis item is sold AS IS. No returns or exchanges are accepted. Condition For parts or not working Description Unit powers on, but as soon as you press start, the screen shows Error 52 No Encoder Feedback. Unit will not turn pump head. Pump head does move freely when turned manually. For this reason, we are selling the unit AS IS for parts repair as a non working or incomplete unit. We have not tested inspected any further, item may have unknown issues