We have a pair of 1,620kw (2,172 hp) Caterpillar 3512 emergency power generators at the telecom central office where I work. This is the most recent coolant analysis result for them. The coolant is Caterpillar ELC that was installed 6 years ago. Each generator has more than 800 gallons of coolant. The analysis was done by Butler Machinery with Level II kits purchased through Dyson Analysis.
The first column is gen 1, the second gen 2.
code:Many thanks to Terry for his line-by-line analysis of the data. One generator suffered a boil-over accident soon after installation, and was topped off with water. That generator is in trouble now. Can you guess which one?GEN #1 GEN #2 Total hrs: 117 hrs 118 hrs Appearance: red/orange/clear red/orange/clear Odor : normal normal Foam : normal normal Oil/Fuel : none none Maintenance & additives: Glycol 50% 32% Freeze -37C -17C Boil 107C 103C PH 8.7 8.7 Conductivity 3940 4040 NO2 490 170 NO3 0 0 SiO3 3 3 moO4 866 423 PO4 3 0 Bo3 1 11 Seb 1380 870 Toly 1560 870 K 5636 3437 Corrosion & Hardness: Fe 0 0 Cu 0 0 Al 0 0 Pb 0 0 Sn 0 0 Zn 0 0 TH 3 42 Ca 3 11 Mg 0 31 Metal Pitting : SO4 0 0 Glycat 0 0 CO3 0 0 CI 0 0 NH3 no no Solids : none none