I have 11 CR1000 data loggers and after several months usage we found "NAN" occur for 3 sites. How to attached the .dat data for consideration.
Thank you.
Copy and paste?
OK. But it is a long line. (column)
This error was found at yesterday midnight.
"2014-05-19 22:30:00",8685,13.64,24.51039,1966.27,1939.957,1936.473,1836.773,1962.922,2004.385,1803.547,1978.08,1792.136,1785.052,1905.732,1983.39,1876.781,1984.177,1967.304,1888.386,3926.529,3822.143,3808.426,3426.365,3913.168,4080.233,3303.525,3973.838,3261.856,3236.119,3688.472,3995.204,3577.256,3998.373,3930.66,3621.63,25.78,23.2,22.78,22.84,23.14,23.05,23.17,23.9,23.16,9.28,9.65,23.17,23.16,23.4,22.07,24.68
"2014-05-19 23:00:00",8686,13.64,24.48101,1966.192,1939.957,1936.489,1836.815,1962.922,2004.385,1803.538,1978.118,1792.136,1785.052,1905.718,1983.39,1876.783,1984.182,1967.3,1888.383,3926.22,3822.143,3808.489,3426.521,3913.168,4080.233,3303.491,3973.993,3261.855,3236.119,3688.416,3995.204,3577.264,3998.396,3930.644,3621.619,25.75,23.2,22.78,22.84,23.14,23.05,23.17,23.9,23.16,9.3,9.69,23.17,23.16,23.4,22.07,24.68
"2014-05-19 23:30:00",8687,13.65,24.3929,1966.122,1939.959,1936.502,1836.865,1962.922,2004.385,1803.528,1978.171,1792.136,1785.052,1905.708,1983.391,1876.786,1984.203,1967.309,1888.396,3925.94,3822.152,3808.542,3426.708,3913.168,4080.233,3303.457,3974.206,3261.854,3236.12,3688.378,3995.206,3577.275,3998.481,3930.681,3621.671,25.73,23.2,22.78,22.84,23.14,23.05,23.17,23.9,23.16,9.29,9.67,23.17,23.16,23.4,22.07,24.68
"2014-05-20 00:00:00",8688,13.66,24.36354,1966.046,"NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN",3925.637,"NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN",25.71,"NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN"
"2014-05-20 00:30:00",8689,13.64,24.36354,"NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN"
"2014-05-20 01:00:00",8690,13.64,24.33416,"NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN","NAN"
Are these Vibrating wires?
What hardware have you connected to the logger. Multiplexers for example are they Campbell's.
It looks like a component common to all of the sensors has failed. Could be a multiplexer or AVW200 for example.
* Last updated by: EarlyBird on 5/20/2014 @ 2:58 AM *
Yes, these are 16 Vibrating wires.
Multiplexer is not Campbell. It's connected to AVW200 and CR1000.
What make of multiplexer?
Was there lightening in the logger location?
* Last updated by: EarlyBird on 5/20/2014 @ 3:14 AM *
For this site.
It is ROCTEST TELEMAC Mux
And the other site is Campbell Mux.
Both sites have the same problem. The dataloggers have sent "NAN" values to the server.
You need to check for hardware failures. Multiplexers being struck by lightening is a common cause of failures but I have not had that with the AM16/32B. I have also found the AVW200 very robust.
Thank you very much.
I will recheck my hardware again.
How do you mean again?
Can you hear the muxes clocking over?
Yes, sure.
I have a Vibrating wire readout unit.
I have connected it at the input port (V1+,V1-,T1+,T1-) of AVW200, it can reading value of all sensors.
That is good we now know that the multiplexer is working.
You need to look at the AVW200. How are you controlling the Mux by AVW200 or CR1000?
The Mux was controlled by CR1000.
It is possible that the AVW200 is not working then.