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: Volumetric alarm and how do I make it work?

Loopy
09-06-2002, 18:27
Can anyone please help me with my volumetric protection, which worked while demonstrated at the garage?

I superlock the car. The guinea pig passenger thrashes around wildly (while the hood is up)but no alarm triggers. I reach into the car while the hood is down, but silence.

It might be worth mentioning that my perimetric alarm was triggered three times successively and my manual says that the alarm may need to be reset, whatever this is?

Thanks for your help.

Lisa

[Edited by Loopy on 09-06-2002 at 07:28 PM GMT]
Dr Dave
09-06-2002, 19:45
Loopy - what car do you have?

MGF by any chance?
Loopy
09-06-2002, 22:59
Sorry ... blonde moment.

Yes, I have an MGF on a 1997 plate.

Thanks :)
Dr Dave
10-06-2002, 09:05
Lisa - the interior protection part of the MGF alarm system is provided by means of a microwave sensor positioned between the driver and passenger seats under some trim.

This sensor is adjustable for sensitivity via the MG Rover diagnostic tool, T4.

Just don't make it too sensitive otherwise you'll find the alarm going off when it shouldn't be :( usually in the middle of the night!

As an aside, it might be worth noting that the microwave sensor doesn't become active for 30-45 secs after arming the alarm; this is to let the interior of the car 'settle down' thus preventing false alarms.

Hoep this helps :)
Loopy
11-06-2002, 19:44
Hi Dave

Thanks ever so much for your help.

One last thing ... I dropped into the garage, and they told me that even when I superlock the car, any movement within the passenger compartment will NOT trigger the alarm, regardless of whether the roof was up or down. This seems to contradict what it says in the manual, and also the information you've given me.

Sorry to ask you again, but I'm confused:eyes I was hoping that my spare set of flat driving shoes (why can't I raise the steering column ... aargh!) would be safe from thieves.


Thanks again. Pukka!!

Loopy:)
Dr Dave
25-06-2002, 07:46
Well, surely that defeats the object of having interior protection (ultrasonics) doesn't it?

I'm 100% sure that any interior movement (within the microwave bubble, hood up or down) would set the alarm off

The manual cannot be wrong and I'm sure I'm right, too :D

Take the manual in and show 'em, Lisa 8)