Example of how to work around min/max scale on feature layers

FeatueLayerScaleHack.js

    require(["esri/map",
             "esri/layers/FeatureLayer",
             "dojo/domReady!"], 
             
      function(Map, FeatureLayer) { 
         map = new Map("mapDiv", {
            center: [-111.8, 40.7],
            zoom: 3,
            basemap: "gray"
          });
      
      //this layer has minscale of 100,000 yet it will be drawn on this map at zoom level 3
      l = new FeatureLayer('http://sampleserver6.arcgisonline.com/arcgis/rest/services/RedlandsEmergencyVehicles/FeatureServer/0');
      l.on("load", function() { l.minScale = 0; l.maxScale = 0; });
    });