Owners manual

Electromagnetic Interference (EMI) QSB4.5 and QSB6.7
Page 1-18 Section 1 - Operating Instructions
Electromagnetic Interference (EMI)
General Information
Some applications utilize accessories such as (CB radios, mobile transmitters, etc.) if not installed and used correctly
the radio frequency energy generated by these accessories can cause electromagnetic interference (EMI) conditions
to exist between the accessory and the Cummins electronically controlled systems. Cummins is not liable for any
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)