It turns out that the BLHeli ESC settings must be modified first before calibration in order for the ESC to work with the T200 Thruster.
The “Motor Direction” set to “Bidirectional 3D” and “Low RPM Power Protect” set to “Off” as mentioned in the ArduPilot Docs.
https://ardupilot.org/rover/docs/thrusters.html?highlight=t100