B737 Next Generation Undifferentiated
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 221; Flight Crew Total 8359; Flight Crew Type 6757
Workload; Situational Awareness
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Wake Vortex Encounter; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter Unstabilized Approach
Flight Crew Became Reoriented
Human Factors; Procedure; Weather
On approach into LAS; RWY 26L visual. ATC turned us close behind preceding traffic.  As we approached the FAF; our separation decreased to a point where ATC directed an S-turn on final for spacing. As we got really busy monitoring the turn altitude and airspeed in the S-turn; the 1000 foot and 500 foot call was late. As Pilot Monitoring; I inadvertently set Vref speed instead of approach. Pilot Flying caught and maintained extra speed. Airport conditions included gusty winds and wake turbulence on final.
B737NG Captain reported a tight turn to final at LAS led to some procedural errors.