I have been asked to install a Viper shock sensor on a 3 panel UPVC bay window. The window comprises of the main panel with 2 panels at 90 degrees to the main panel.

If I install the sensor on the middle panel, will the sensor detect shocks on the 2 side panels?

Simon

There's no definite answer - it will depend on a lot of things, eg size of windows, construction of the frames, how the shock sensor is fitted to the frame.

Unfortunately the only way you'll know for sure is trying it.

You'll probably have to turn the sensitivity right up, which of course gives increased risk of false alarms. (It's a long time since I used a Viper - do they warn if you are too sensitive? I like the Impaq Plus for this reason.)

The best solution would really be one for each window.

(Or a glass break + mags...?)

MarkP

Quite agree with Mark P, wood is generally better than plastic, but if you allow a 1 meter radius around the detector you shouldn't go wrong

The problem is that there are already 3 Viper shock sensors in various parts of the house.

Additionally the existing 6 zone panel is now full and the Customer wants an extra PIR and Viper shock sensor. I suggested upgrading to a new 8 zone panel but he is trying to avoid the extra cost.

The existing panel is an Optima Compact and has been installed for approx 12 months.

Anyone got any suggestions how to get round the problem?

Simon

Assuming that those 3 existing vipers are one seperate zones you could Change all the existing viper shock detectors for the latching type and put them on the same zone, that`ll free up the 2 zones you need.

The existing Vipers are on different zones.

I take it that they are non-latching sensors?

I have had a look at the Texecom Impaq Plus which is a latching and first to alarm sensor. This would appear to do the job. However, I am not sure the existing 6 core cabling will be sufficient. It would seem that I need 1 pair for alarm, 1 pair for tamper, 1 pair for power and a further wire for latching.

Or am I missing something?

Simon

ive not heard good things about the Texecom Impaq, My supplier has a lot returned and he recommends sticking with vipers, and theyre cheaper!

Ive installed a few Impaqs and never had any major problems, plus I like the design of them.

It depends which type you go for........

Some Impacts require 7 wires and others require just the 6 with a resitor fitted from the + feed to the latch terminal.

Simon,

Regarding the wiring connections for the Impaq Plus, yes you would need one core for the latch line (typically connects to Alarm+ or Set+ at the panel). So if you want tamper (and I've been to a few installations where it wasn't fitted...!) you would need a seventh cable.

In reply to Ian's comments I must say I much prefer the Impaq Plus to the Viper. It looks a lot nicer, I like the sensitivity adjustment (warns if too sensitive) and they have been VERY reliable.

MarkP