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ManualsBrandsPico Automotive ManualsMiscellaneous Test AccessoriesSecondary Ignition Pickup - ADC-212, 3000 & 4000 Series Pico Scope

DO084-4 1

MI074

Secondary Ignition Pickup

Due to the high voltages in secondary ignition systems, it is

not possible to make measurements by connecting directly

to them. Attempting to do so will almost certainly damage

the measuring instrument.

The MI074 is a capacitive pickup that connects around the

insulation of an ignition circuit component such as a plug

wire. This avoids the need for direct connection.

Although ideal for use with the Pico ADC-212 and PicoScope

3000 and 4000 Series Automotive ranges, the MI074 pickup

can also be used with oscilloscopes of most other makes

provided they have a waveform invert option.

BNC

Ignition pickup

Ground clip

Summary of content (4 pages)

PAGE 1
BNC Ignition pickup Ground clip MI074 Secondary Ignition Pickup Due to the high voltages in secondary ignition systems, it is not possible to make measurements by connecting directly to them. Attempting to do so will almost certainly damage the measuring instrument. The MI074 is a capacitive pickup that connects around the insulation of an ignition circuit component such as a plug wire. This avoids the need for direct connection.
PAGE 2
MI074 Secondary Ignition Pickup How to use the MI074 Safety precautions before use  Keep the lead away from pulleys and other moving parts  Keep the lead away from heat  Never let the ignition pickup, ground clip or BNC come in direct connection with primary or secondary voltage (otherwise the Pico oscilloscope may be damaged)  Always use the ground clip  Do not let the metal portion of the pickup contact a ground Connecting the MI074  Connect the MI074 to the ADC-212 or PicoScope 3000 or 4000 Series
PAGE 3
MI074 Secondary Ignition Pickup Using the MI074 with PicoScope With the MI074 connected as described above, start the PicoScope software. Click the Channel Options button ( to ), then click the Probe box, and select Secondary Ignition Pickup (Inverted). Next adjust the timebase, voltage range and trigger until your waveform looks similar to the one below. Using the MI074 with other scopes The MI074 is compatible with most oscilloscopes that have standard high-impedance BNC inputs.
PAGE 4
MI074 Secondary Ignition Pickup Revision History 1) 8.10.2002 2) 26.1.2007 3) 28.4.2008 4) 3.8.2010 Text only. Added photo & PicoScope 5 illustrations. WEEE & CE logos. PicoScope 6. Scaling data. Pico Technology James House Colmworth Business Park St. Neots Cambridgeshire PE19 8YP United Kingdom Tel. +44 (0)1480 396395 Fax +44 (0)1480 396296 www.picotech.