Recent content by somiamehar

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    Recurring IOP Alarms on Berthold UniProbe LB 490

    We have a Berthold UniProbe LB 490 radiometric level transmitter installed on our pool reactor vessel containing carbamate solution. Recently, we have been experiencing recurring IOP alarms for the level detector on our DCS. The steps taken so far: - Loop integrity checked multiple times. -...
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    GE Frame 9E Gas Turbine Exhaust Thermocouple TTXD_12 Low Value

    Thank you @WTF? for the detailed response. As for your questions: WHAT ALARMS (Process AND Diagnostic) were active and annunciated when the problem occurred? The process alarms included the following for obvious reasons: Exhaust Thermocouple Trouble Alarm L30SPTA Combustion Trouble Alarm...
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    GE Frame 9E Gas Turbine Exhaust Thermocouple TTXD_12 Low Value

    We have a GE Frame 9E (PG 9171E) gas turbine, operation controlled by speedtronic MARK VI controller running on Permeate Low-BTU Gas. Recently, we observed a transient spike in Exhaust Spread-1(132°C) during normal operation. Upon investigation it was found that one of the 24 exhaust...
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