Using HRM for strength and circuit training

I use a Polar FT7 and just got it recently. I usually do circuits that are a mix of cardio + strength.

For example:

20 secs: Burpees
10 secs: Rest
20 secs: Push-ups
10 secs: Rest
20 secs: Shoulder press with sumo squat
10 secs: Rest

And this goes on for about 10-15 minutes (one circuit). The question I have is, do I pause my session on my HRM during the 10 secs of rest that I have? Would it be more accurate?

I occasionally also do circuits from Nike Training Club (my favourite!). It is also cardio + strength. Some of their recovery sessions DURING the circuit can last up to a minute. Do I then pause my HRM during that rest?

This question is posed to weight training as well. Pause between sets or on the whole time?

I use a Polar FT7 and just got it recently. I usually do circuits that are a mix of cardio + strength.

For example:

20 secs: Burpees
10 secs: Rest
20 secs: Push-ups
10 secs: Rest
20 secs: Shoulder press with sumo squat
10 secs: Rest

And this goes on for about 10-15 minutes (one circuit). The question I have is, do I pause my session on my HRM during the 10 secs of rest that I have? Would it be more accurate?

I occasionally also do circuits from Nike Training Club (my favourite!). It is also cardio + strength. Some of their recovery sessions DURING the circuit can last up to a minute. Do I then pause my HRM during that rest?

This question is posed to weight training as well. Pause between sets or on the whole time?

Here is a thread that might be of help:

http://www.myfitnesspal.com/topics/show/588739-hrm-protocol

Hmmm so I should only start the HRM when I am in the *zone*? How do I know what's my *zone*?