When the thermal fuse blows repeatedly the problem is most likely air flow.
The temperature range you got is not excessive and is most likely not the cause of the fuse blowing.
You say the vent is clear but you don't indicate where it goes or how long a vent run the dryer has.
Running a load or two with the vent disconnected might help resolve the problem.
Check the size of the load. Overloading can cause this problem.
Don't open the door and check if the clothes are dry.
This is something that is commonly done but if the dryer is heating when the door is open then the element will stay on for a few seconds . With the door open there is no air flow but the element is still hot and may trip the thermal fuse.
You would want to pause the dryer before opening the door to check the dryness of the clothes.
I hope this information is helpful to you. The temperature range is okay so the problem will most likely be with the air flow.