C8.3 Commercial Marine and Ind [...] Electromagnetic Interference (EMI) Section 1 - Operating Instructions Page 1-25 performance problems with either the electronically controlled systems or the accessory due to EMI. EMI is not considered by Cummins to be a system failure and therefore is not warrantable. System EMI Susceptibility Your Cummins product has been designed and tested for minimum sensitivity to incoming electromagnetic energy. Testing has shown that there is no performance degradation at relatively high energy levels; however, if very high energy levels are encountered, then some noncritical diagnostic fault code logging can occur.
The electronically controlled systems EMI susceptibility level will protect your systems from most, if not all, electromagnetic energy- emitting devices that meet the legal requirements. System EMI Radiation Levels Your Cummins product has been designed to emit minimum electromagnetic energy. Electronic components are required to pass various Cummins and industry EMI specifications. Testing has shown that when the systems are properly installed, they will not interfere with onboard communication equipment or with the vehicle's, equipment's, or vessel's ability to meet any applicable EMI standards and regulated specifications.
If an interference condition is observed, follow the suggestions below to reduce the amount of interference: 1 Locate the transmitting antenna as far away from the electronically controlled systems and as high as possible. 2 Locate the transmitting antenna as far away as possible from all metal obstructions (e.g., exhaust stacks) 3 Consult a representative of the accessory supplier in your area to:
- Accurately calibrate the device for proper frequency, power output, and sensitivity (both base and remote site devices must be properly calibrated) - Obtain antenna reflective energy data measurements to determine the optimum antenna location - Obtain optimum antenna type and mounting arrangement for your application