GxT Ferret 901 RPM Adapter - Manual (Page 3)

Getting a Stable Reading
If the RPM reading is not reasonably stable, the following steps will help you
obtain the most stable reading possible.
1. Make sure the spark pickup is close to the spark plug, and the pickup latch
is securely closed.
2. On DIS double ended coil system, some of the coils fire opposite of a
conventional coil. Turn the spark pickup over.
3. A misfiring spark plug wire will cause an erratic reading. Move the pickup
to another spark plug wire.
4. Inspect the spark pickup for a broken U-core or I-Core.
Compatible Equipment
All DMM’s that accept banana plugs and have an RPM range. The 901 will
provide a sharp driven signal for RPM readings for these meters and correct for
double-end DIS and 2 Stroke systems.
All DMM’s that accept banana plugs and have a Volts and/or millivolts range.
The 901 will provide RPM readings for these meters adjusting for double-end
DIS and 2 Stroke systems.
Any LAB SCOPES that require a Cylinder #1 sync input. The 901 will provide a
sharp driven signal for synchronizing displays for these scopes and correct for
double-end DIS and 2 Stroke systems.
Parts & Accessories
X008-01 Spark Pickup
W000-03 Extension Lead
Technical Support
Any questions or inquiries about service can be answered by contacting Ferret at:
Ferret Instruments, Inc.
1310 Higgins Drive
Cheboygan, MI 49721
(616) 627-5664, Fax (616) 627-2727
Toll Free (800) 627-5655 or
(800) 647-5655 for Alaska, Hawaii, and Canada