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Yes. Even if you don’t have the proper conversion factor or table you should still perform a travel recording to help evaluate the breakers performance. You will not be able to correctly determine the velocity of the contacts but you will still be able to trend the motion over time. If you know the stroke length you can build a simple conversion factor where the total angle or distance traveled is equal to the stroke length of the circuit breaker. It should be noted that this method assumes that your circuit breaker is working correctly at the time of measurement. You can then use these values moving forward. Additionally you can still look at parameters such as overtravel, rebound and contact wipe as a percentage of the total stroke to determine if you need to adjust the dampening on the mechanism.