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Custom Fire Apparatus, Inc. <br />A dot-matrix message display shall show diagnostic and warning messages as they occur. It shall show <br />monitored apparatus information, stored data, and program options when selected by the operator. <br />The program shall store the accumulated operating hours for the pump and engine, previous incident <br />hours, and current incident hours in a non-volatile memory. <br />Stored elapsed hours shall be displayed at the push of a button. <br />It shall monitor inputs and support audible and visual warning alarms for the following conditions: <br />• High Engine RPM <br />• High Transmission Temperature <br />• Low Battery Voltage (Engine Off) <br />• Low Battery Voltage (Engine Running) <br />• High Battery Voltage <br />• Low Engine Oil Pressure <br />• High Engine Coolant Temperature <br />CONTROL MODES <br />The governor shall operate in two control modes, pressure and RPM. No discharge pressure or engine <br />RPM variation shall occur when switching between modes. A control knob that uses optical technology <br />shall adjust pressure or RPM settings. It shall be 2" in diameter with no mechanical stops, a serrated grip, <br />and have a red idle push button in the center. <br />THROTTLE INDICATOR <br />A throttle ready LED shall light when the interlock signal is recognized. The governor shall start in <br />pressure mode and set the engine RPM to idle. <br />PRESSURE CONTROL <br />In pressure mode the governor shall automatically regulate the discharge pressure at the level set by the <br />operator. <br />ENGINE RPM CONTROL <br />In RPM mode the governor shall maintain the engine RPM at the level set by the operator except in the <br />event of a discharge pressure increase. <br />The governor shall limit a discharge pressure increase in RPM mode to a maximum of 30 PSI. Other <br />safety features shall include recognition of no water conditions with an automatic programmed response <br />and a push button to return the engine to idle. <br />ENGINE APPLICATION <br />The pressure governor and monitoring display shall be programmed for Cummins IS series engines. <br />LOCATION <br />Location of the governor and monitoring display shall be at pump operator's panel. <br />07/26/22 <br />-80- <br />