no warning displayed despite high deadtime

[andreh12]

The shifter noticed that the DAQExpert did not show any warning despite the following dead times (from /daqexpert/snapshots/pro/cdaq/2018/6/15/9/1529056723297.json.gz):

    "deadTimesInstant" : {
     ....
      "total" : 99.5642893300424,
      "tts" : 42.3440433485273,
      "apve" : 56.1460477084882,
      ...
    },

This was during a test, see e.g. http://daq-expert.cms:8080/DAQExpert/?start=2018-06-15T09:52:44.671Z&end=2018-06-15T10:02:44.671Z