What does the spring scale register while the elevator is traveling at constant speed?

A 80 kg man stands on a spring scale in an elevator, Starting from rest, the elevator ascends, attaining its maximum speed of 1.5 m / 0.9 s. It travels with this constant speed for the next 4 s, undergoes a uniform negative acceleration for 2.8 s, and comes to rest. The acceleration of gravity is 9.8 m/s^2. What does the spring scale register while the elevator is traveling at constant speed?