Nice weather after the cold front/rain yesterday. Semmer has left, Andy to arrive Mon, so no pickup for 2 days. I'm the Boss for another 3 days...
Still 38 instrumented towers.
- rne04 supposedly was retensioned yesterday or Thurs. Will wander up there to check. If good, can add RMY. Tensions are now higher, up to 350, but no change to anchors. Thus, this tower is now LESS SAFE. Wish they had told me when they were there (as I had asked).
- tnw02/04/08 supposedly have concrete in place, ready for towers. Will wander out there too to check today. Checking prepping in ops. tnw02 concrete work is done.
- tse05/14/15 will be worked on next week. Prepping in ops.
- li7500.v07 wanders off with bad values, but 4-hour crontab restart has been bringing it back
- li7500.v06 is similar, but lidiag is aways set, thus no values are coming through statsproc. Will need some action.
- tp01.tse02/07/12 all not reporting – suspect plugged into wrong mote port (only works on right-most port with the new fuses) tse12 was plugged into wrong port. tse07 came back after being reseated (may have had a drop of water inside TP01 side connector). tse02 was plugged in correctly; I reseated, but it didn't look bad. It might have been okay, but I panicked and replaced the PIC. Now working, but has wrong coefficients (PIC is for TP01:200241, probe was TP15/200668.)
- trh.20m.rsw06 still bad. will need action.
- During prepping, have noticed things missing:
- not enough motes. The remaining 2 will be used for the 2 soil installations
- only one mote console cable! (3 have a broken pin). Will repair with spare connector.
- having to use a not-Ted's ethernet cable, since I gave one to CU (thinking I had extra).
- Ted had given away the ubiquiti for tse15. I'm reprogramming the next-to-last spare. I think this is now ready.
Steven Oncley AUTHOR
Update on wisard board TP15, removed from tse02: The ADC Tcal coefficients were mostly zero, including the gain=8 values used for the TP01's thermopile. Thus, all readings were zero, which meant that the PIC code hangs while waiting to drop to a 1/e value. Could have loaded new coefficients, but the PIC code defines the input buffer length=64 characters, and you need 200+ to load all of the "TP4" coefficients. Thus, needed to reprogram. Also found that Steve S.'s code here needed a #define _TP01 to be uncommented to achieve proper operation. So...by the end of today, recovered TP15 and paired it back with 200668 for future use.
Note that the change of coefficients still needs to be accounted for in data QC. 200241 R=16.2, E=1.415e-4; 200668 R=14.2, E=1.581e-4. This does not change asoil, which only depends on Tau_63, which is a relative measurement. Lambda = E (Vheat^2)/[ (Vpile180 - Vpile0) R L ]. Thus Lambda668 = Lambda241 * (1.581/1.415) * (16.2/14.2) = Lambda241 * 1.27. Cv = Lambda/asoil, thus Cv668 = Cv241 * 1.27.
Since there do not appear to be any tse02 data before 6 May, this will be an easy change to implement – just add a gain of 1.27 to Lambda from this site (and 1.00 to all other sites).