G5-5 chamber had the arm disconnected, and one half lid was stuck closed. Reattached the arm.

The Licor in the trailer disappeared from the network at 2024-4-12 19:30 EDT. I had to power down the instrument using the button on the side and restore power to get it to reconnect the network. Before restarting the Licor I tried to reconnect the network by removing and reinserting the ethernet cable, thinking that it would notice the loss of the ethernet cable and reset the network stack, but that did not work. After restarting the instrument indicated a plugged inlet, I removed both inlet and outlet lines and restarted the licor from the web panel. It started normally. I re-attached the inlet and outlet lines and restared the gashog app.

reduced the amount of blank samples measured.

Replaced defective solenoid on G1-2 sampling line. The Licor was reading plugged inlet for this chamber, which suggests an issue downstream. We not only changed the solenoid but also the lid actuator which took almost a year to receive. Now have extra in stock.

No NOx data is arriving since 2024-2-29 at 14:30. Checked connections and restarted the app. NOx data now showing.

Dave reported that G1-2 remained closed for while he was at the trailer.

Licor reported a plugged inlet. It had been stuck sampling G1-2 since 2024-02-29 15:42. I disconnected the licor lines and rebooted. Waited for the laser to stabilize and reconnected the lines. I turned off G1-2 in case there is a plug in those lines.

Dave checked chambers and NOx pump, all operating. Also Dave installed two TOMST soil moisture/temperature sensors on T2R1 near the installed CSI sensors reading soil moisture which were installed throughout the winter.

Fixed disconnected lid on G5-3. Lid was in the closed position.

Tracked down issue with G1-2 (finally). Both clamp actuators are leaking internally. Now have the Bimba actuators on hand (backordered for 10 months or more). Found them at Neff Engineering in Grand Rapids.

Checked automated chambers. No issues seen with 1-6, though reports of issues from remote data. 5-4 was missing a clamp head. Found it and replaced it. May need a new one as a long-term fix.

Disconnected the incoming and outgoing sampling lines from the Licor and ICOS in the trailer until we can clear the chambers and get them operational.

G5-6, G1-3, G1-5 all overextended. Turned down compressor outgoing pressure to just over 52psi. Will shut down system today prior to snowstorm and incoming polar vortex.

Reset G5-5 lid and reconnected clevis.

G5-2. One lid is frozen to the base, the other was overextended. Moved the over-extended lid back but did not unfreeze the frozen lid.

Found chamber G5-6 (control) had a hyperextended lid on the east side. Put back in place. Going back out to see if I can adjust it with a screwdriver to prevent it from recurring.

LGR ICOS went down in the afternoon. No laser activity, mirror health warning, and high temp. Will swap with our last working instrument. Then decide which unit to send in for repair if any.

Notified Michigan Aerospace, they were on week two of collection with their instrument inline just before the return manifold.

Valve on G6-6 leaking. Changed, but did not fix the issue. Block off outgoing tubing and recheck. One of the lid actuators at the box needs to be replaced.

G5-3 has a leaky mechanical valve, lid. G1-3 has a frozen line on the lid and G1-6 may have a leak at the mechanical valve.

Pressure leak on G5-5 over the weekend. Repaired and added oil to compressor. Pre-MI-aerspace instrument addition chamber settings. Must add one minute for extra volume of new laser instrument.

Compressor was down on the trailer since 11/1 (I was on vacation). Repaired. Also installed the new pump for the NOx box and started the system.

Looks like one or both clamps on G1-1 are leaking at chamber. Will need to order new parts.

7/26 there was a problem with G5-2 lid solenoid on the trailer system. Found the signal wire to the switch was not connected, but also no lids were firing in close mode. Found a ground wire off as well. Reconnected the G5-2 lid wire and should all be working properly. DW checked the compressor as well.

Trimmed switchgrass emerging above G5 automated chambers. Found G1-2 lids up, but north clamp down. May have blocked closure of lids over the extended weekend. Fixed north clamp.

KK- solenoid for this chamber not currently connected due to issue is either solenoid or clamps. Will address soon.

G5-5 chamber east lid was not functioning from 6/18 - 6/29. Fluxes should be removed.

BCSE G5, chamber 4 - west lid connector had become unattached. Removed old, rusty connector and replaced with new. (Approximately 2pm.)

BCSE G5 automated flux chambers - trimmed all switchgrass in chambers to at/below chamber ceiling. Work done approximately 12:30pm.