SEAL 2S2077 - Caterpillar

Alarms
The MMS will display an alarm if an event is detected. Running the engine during abnormal conditions may cause engine damage.
Table 1
Alarms of the Marine Monitoring System    
Description    Sensor Location
Group Part Number (1)    Set Point    Source of the Alarm    
Pressure    
Low Oil Pressure     142-5916 or 146-9438 Block 1    
120 kPa (17 psi) at Low speed
320 kPa (46) at High Speed     The outlet of the lube oil filter's pressure transducer    
High Oil Filter Pressure Differential     142-5916 or 146-9438 Block 1 and Block 2    
70 kPa (10 psi)     The PLC calculates the differential.    
Low starting air pressure     142-5918    
750 kPa (109 psi)     The starting air contactor or an optional transducer    
The outlet pressure from the jacket water pump is low.     142-5916 or 146-9438 Block 4    
70 kPa (10 psi)     The jacket water contactor or an optional transducer    
The outlet pressure of the after cooler and oil cooler pump is low.     142-5918 or 146-9438 Block 4    
70 kPa (10 psi)     The after cooler and oil cooler contactor or an optional transducer    
Low Fuel Pressure     142-5916 or 146-9438 Block 3    
260 kPa (38 psi)     The pressure transducer at the outlet of the fuel filter    
High Fuel Filter Pressure Differential     142-5916 or 146-9438 Block 2 and Block 3    
75 kPa (11 psi)     The PLC calculates the differential.    
High Inlet Manifold Pressure     142-5916 or 146-9438 Block 4    
230 kPa (33 psi)     The pressure transducer on the inlet manifold    
Low Sea Water Pump Outlet Pressure     148-0200    
35 kPa (5 psi)     Optional Sea Water Transducer    
Temperatures    
High Jacket Water Outlet Temperature     148-0162 In-line 143-9141 Vee    
103 °C (217 °F)     Two jacket water coolant temperature sensors are on the engine. One sensor is for the alarm and the display. One sensor is for shutdown.    
High After Cooler/Oil Cooler Water Inlet     148-0162 In-line 142-9139 Vee    
60 °C (140 °F)     After Cooler/Oil Cooler Inlet Water Temperature RTD    
High Lube Oil Temperature     143-9141    
92 °C (198 °F)     Lube Oil Temperature RTD    
High Air Inlet Manifold Temperature     148-0162 In-line 143-6127 Vee    
92 °C (198 °F)     Inlet Air Manifold RTD    
High Exhaust Temp on the Turbine Inlet (Left Side and Right Side on a Vee)     148-0162 In-line 143-9139 Vee    
630 °C (1166 °F)     Thermocouples    
High Exhaust Stack Temp (Left Side and Right Side on a Vee)     148-0162 In-line 143-9139 Vee    
550 °C (1022 °F)     Thermocouples    
High Individual Cylinder Temperature     148-0162 In-line 143-9139 Vee    
550 °C (1022 °F)     Thermocouples    
Individual Cylinder Temperature Deviation from Average     148-0162 In-line 143-9139 Vee    
50 °C (122 °F) From the cylinder temp average     Thermocouples    
Miscellaneous    
Low Battery Voltage     146-5522, 146-5523, 146-5524,