- #1
biobort
Hi all - I'm looking for a little bit of practical advice on an academic electronics project.
I'm working on rehabbing an older laboratory orbital shaker for my lab, and I am working on identifying the issue with its problematic operation. This is the particular product: http://www.bellcoglass.com/node/1677
A rheostat allows fine adjustment of the platform rotation speed of the shaker. At the higher end of the speed range the motor begins operating in a jerky manner. I opened the unit up and found that one of the resistors on the rheostat board appears to be fried (see pictures). I'm wondering if I can simply replace this resistor and expect this thing to work property, or if its destruction is a symptom of another failed component. My background is in biochemistry (phd) with some basic electronics experience, but this is a bit over my head so any help would be much appreciated.
I'm working on rehabbing an older laboratory orbital shaker for my lab, and I am working on identifying the issue with its problematic operation. This is the particular product: http://www.bellcoglass.com/node/1677
A rheostat allows fine adjustment of the platform rotation speed of the shaker. At the higher end of the speed range the motor begins operating in a jerky manner. I opened the unit up and found that one of the resistors on the rheostat board appears to be fried (see pictures). I'm wondering if I can simply replace this resistor and expect this thing to work property, or if its destruction is a symptom of another failed component. My background is in biochemistry (phd) with some basic electronics experience, but this is a bit over my head so any help would be much appreciated.