Gunson digimeter 320 Manual

[SpitfireBen]

I’ve bought a Gunson digimeter 320 and was hoping to use the RPM feature for my triumph spitfire.

It doesn’t have a manual, does anyone have one please? Or know how to use the RPM with two leads?

Thanks

[GreenV8S]

I expect you'll need to connect the -ve lead to vehicle ground and the +ve lead to the coil -ve terminal. This will give you a square wave at the ignition frequency. The meter has switch positions for common cylinder counts which will just divide the frequency by the corresponding factor.

ETA: If the dwell figures come out wrong, connect the two leads across the coil instead. This will give you the same frequency but the inverse duty cycle.

Edited by GreenV8S on Thursday 31st December 20:07

[Evoluzione]

Is using Google somehow beyond you?

[SpitfireBen]

Evoluzione it is for the manual, did you find a manual on google..?

[Evoluzione]

SpitfireBen said:

Evoluzione it is for the manual, did you find a manual on google..?

Yes quite a lot, one even linked back here to PH with exactly the same question.

[SpitfireBen]

Evoluzione said:

Yes quite a lot, one even linked back here to PH with exactly the same question.

Amazing, is it a PDF? Post a link please

[paintman]

If the PH one referred to is from 2015 the link in it no longer works.
Website 'manualslib' does list several Gunson products but not the 320.
Gunson's website doesn't appear to show it either.

Edited by paintman on Thursday 31st December 12:36

[Penelope Stopit]

SpitfireBen said:

I’ve bought a Gunson digimeter 320 and was hoping to use the RPM feature for my triumph spitfire.

It doesn’t have a manual, does anyone have one please? Or know how to use the RPM with two leads?

Thanks

Sorry I can't be of any help, have been though much of Google search results and had no joy

[SpitfireBen]

Ahh no worries, thanks for looking 👍

[paintman]

Just have to wait for Evoluzione to post one of the working ones he's found.

[SpitfireBen]

Evoluzione said:

Yes quite a lot, one even linked back here to PH with exactly the same question.

Hey Evoluzione, please could you post the one you found?

[Evoluzione]

Lol, i'm not sitting here clicking on all the PDFs to download them for you, DIY
Regardless of that it'll soon be Monday, then you can contact Gunsons direct for one.

[SpitfireBen]

Evoluzione said:

Lol, i'm not sitting here clicking on all the PDFs to download them for you, DIY
Regardless of that it'll soon be Monday, then you can contact Gunsons direct for one.

hahaha thanks, I didn’t think you had found one

[Piersman2]

SpitfireBen said:

Evoluzione said:

Lol, i'm not sitting here clicking on all the PDFs to download them for you, DIY
Regardless of that it'll soon be Monday, then you can contact Gunsons direct for one.

hahaha thanks, I didn’t think you had found one

He didn't but thought he'd be a smart arse in his replies.

I spent a good 45 mins one boring morning when you first posted your OP looking for one as I thought it should be an easy thing to find, but despite a few promising looking links none of them actually got to a on line version of the manual or handbook. And yes I even tried the Gunson own website to se if they had a decent support site to download from, they don't!

[alfaspecial]

I have a Gunson model 4142, if this helps