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2011/06/29

1730 Assemble tower and perform tower level continuity checks.
Detector G19N DIB 1
side coax ZB1-1-9 date/who: 2011-06-29 HC & AK
face 5
+lead - lead signal typical measured
1 2 QET A 100 to 200 129.8
2 4 QETA-B 100 to 200 249.6
3 4 QET B 100 to 200 248.3
4 6 QETB-C 100 to 200 275.0
5 6 QET C 100 to 200 212.0
6 8 QETC-D 100 to 200 267.3
7 8 QET D 100 to 200 201.8
2 8 QETA-D 100 to 200 233.0
chassis 9 LED1 Rforward 8M to 9M 801k
chassis 10 LED2 Rforward 8M to 9M 775k
chassis 9 LED1 Vforward 1.0 V to 1.1 V 1.106 V
chassis 10 LED2 Vforward 1.0 V to 1.1 V 1.106 V
9 chassis LED1 Rreverse <1 nS <1.0 nS
10 chassis LED2 Rreverse <1 nS <0.4 nS
1 11 Qo Rbias 24 nS to 26 nS 25 nS
12 11 Qo C coupling <1 nS <0.6 nS
12 13 Qo Rfeedback 24 nS to 26 nS 25 nS
1 14 Qi Rbias 24 nS to 26 nS 25 nS
15 14 Qi C coupling <1 nS <0.5 nS
15 16 Qi Rfeedback 24 nS to 26 nS 25 nS
Detector G19N DIB 2
side coax ZB1-1-6 date/who: 2011-04-23 HC & AK
face 2
+lead - lead signal typical measured
1 2 QET A 100 to 200 131.5
2 4 QETA-B 100 to 200 259.2
3 4 QET B 100 to 200 256.2
4 6 QETB-C 100 to 200 275.4
5 6 QET C 100 to 200 210.5
6 8 QETC-D 100 to 200 274.6
7 8 QET D 100 to 200 209.4
2 8 QETA-D 100 to 200 241.7
chassis 9 LED1 Rforward 8M to 9M 796k
chassis 10 LED2 Rforward 8M to 9M 800k
chassis 9 LED1 Vforward 1.0 V to 1.1 V 1.109 V
chassis 10 LED2 Vforward 1.0 V to 1.1 V 1.108 V
9 chassis LED1 Rreverse <1 nS <0.7 nS
10 chassis LED2 Rreverse <1 nS <0.5 nS
1 11 Qo Rbias 24 nS to 26 nS 26 nS
12 11 Qo C coupling <1 nS <2.0 nS
12 13 Qo Rfeedback 24 nS to 26 nS 26 nS
1 14 Qi Rbias 24 nS to 26 nS 26 nS
15 14 Qi C coupling <1 nS <0.8 nS
15 16 Qi Rfeedback 24 nS to 26 nS 26 nS
1805 Start tower installation procedure.
2100 Tower thermometer has lower than expected resistance. Looks like a fault. Will have to remove temperature stages for a closer inspection.
2300 Severed wire at connector on tower side. Can be soldered back after removing sealant.