Dash only shows readings from one sensor

I've just set up an FLM02B with three pulse sensors, "Fridge", "Hot Water", and "Main". Fridge is a subset of Main, the latter is for the whole house while Fridge and Hot Water should be a fraction of the reading from Main.

However on the dash I only get a graph for "Fridge", which happens to be the first sensor listed on the Settings | Sensors list. Is there something extra I need to do to enable readings for the other sensors?

mr_thingy's picture

Replying to my own post in case someone else has the same issue, readings for the other two sensors suddenly started up about an hour after the first one. OTOH the Fridge reading suddenly stopped about 20 minutes ago while the other two continued. Guess I'll need to leave it a few days to get more data.

mr_thingy's picture

Further updates: After 24 hours of monitoring it appears the issue is a problem with how the dash graphs data, if a sensor is producing no pulses then it stops drawing a line on the graph until pulses resume. So if there's a series of readings { 50, 50, 0, 0, 0, 0, 0 } then the line on the graph stops at the last '50' and it appears that the sensor isn't being read any more. Using high-tech ASCII art, it looks something like this:

  1. *----------
  2. *
  3. ******************** X axis

Then once more pulses appear, so the reading is { 50, 50, 0, 0, 0, 0, 0, 50, 50 }, it draws a line along the X axis (i.e. shows a reading of zero) between the two sets of readings of 50:

  1. *----------+      +----
  2. *          |      |
  3. ***********+------+** X axis

I guess this is a tradeoff between showing phantom readings of zero when a sensor stops producing data and having an odd interrupted graph. A fix for it would be to at least show the reading dropping to zero on the graph rather than just stopping the line in mid-air when no more pulses are received:

  1. *----------+
  2. *          |
  3. ******************** X axis