Fig. 8
An instrument displaying EGT that has
encountered electrical interference. Shown by
the ERR annunciator
3
→
Electrical Interference
If the instrument encounters excessive electrical interference it will display ERR
on the left side of the display. (see Fig. 8) This indicates that the stored data might
be invalid. Press the
Function
button, then turn the instrument off for 30 seconds.
After turning the instrument back on, check that it is working properly. If it is
not, turn the instrument off and back on again. Immediately after turning the
instrument on, press the and the
Max/Event
buttons to reset the instrument.
When the display flashes PrS PLA, press the
Play/Pause
button. The error should
now be cleared and memory is erased.
The ERR annunciator can also indicate an incorrect instrument or sensor installation.
Severe electrical interference can cause the limits and calibration to reprogram
themselves. If your instrument is doing strange things, put it in Set Limits and
check to see that the limits and calibration are still where you set them. (see
Appendix B)
Electrical interference problems can normally be solved by installing a
resistance plug boot. We recommend using an NGK boot, # LB05EMH.
To avoid erratic readings:
• Keep your temperature and Tach leads separated by at least 3˝. Do not wrap
leads together, this can induce interference into the system.
• Route the leads as far away from the coil as possible.
• Install the Tach lead on the plug wire at least 2˝ back from the plug boot.
If you still have a problem, try a different location on the plug wire.
• Running your leads through separate sections of fuel line will protect them
from cuts and abrasions, but will not shield them from ignition generated
interference.
• Be sure that all sensors are connected to the instrument, and that all connectors
fit together snugly. Any functions not being used must have a plug on the
pigtail.
Please contact Digatron if the problem continues.
