Don't divide by zero to calculate the ETA, even if we haven't gotten any data in 30 seconds.
Don't divide by zero to calculate the ETA, even if we haven't gotten
any data in 30 seconds.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase