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Author Topic: HRM Problem  (Read 1760 times)

charlyw76

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HRM Problem
« on: January 23, 2012, 03:23:41 pm »

Hi!
I have a 625M which is my second Globalsat watch.
Problem: HRM didnīt ever work. As I received it I did not need HRM function.
Now I am trying to get HRM to work and canīt find any fault but it is not working.
I have replaced the bateries in the belt but didnīt get a signal.

Is there any way to test the belts?

I am kind of frustrated....

Help please!

Thanks
Charly
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canadien

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Re: HRM Problem
« Reply #1 on: January 24, 2012, 01:26:52 pm »

I don't know if I have a good solution, but to check if it's the watch or the HRM the problem, can you go running 10 min (for sweating a little and getting higher bpm) with it and then stop and listen in a quiet environment. If you a hear a little "clic" from the belt to every of your heat beat, then your belt is likely to work. If not, than it might be the problem. And did you make sure you installed the battery on the good side?
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Longjog @ GS-Sport-Servicecenter

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Re: HRM Problem
« Reply #2 on: January 25, 2012, 07:45:13 am »

Hi Charly,

can you describe your problem more detailed please? Do you have a signal or not and if you have one, is it much to high, to low or jumping irregularly?

1st step: Is the herartrate-function switchet ON or OFF?
2nd step: do you have an oter watch which can receive the 5kHz-signal from the belt?
3rd step: do you have an other 5kHz belt which works with the watch?

If you live in Europe you can send watch & belt to me for checking.
You also can order a new belt if you are sure the problem is caused by the belt.

Best regards

Longjog
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http://www.gs-sport-servicecenter.de.vu/

GH-625M, GH-625XT, GH-505, GH-561, GB-580P, BT-338
Germany

jars

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Re: HRM Problem
« Reply #3 on: January 31, 2012, 06:14:54 pm »

Hello. I live in Spain and the HRM goes wrong. I got one from a non-coded heart rate monitor and it works correctly. My clock is the GH-625m s / n: M02277. What I can do? thanks
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Longjog @ GS-Sport-Servicecenter

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Re: HRM Problem
« Reply #4 on: February 12, 2012, 03:52:12 pm »

Hello Jars,

I have made similar experiences like you in connecton with GH-625XT.
With the original-belt the heartrate-values are oscillating up and down, with higher values than the normal (right) values. This failure often appears after a time of running. I also did have training units, without this failure at all, for example when I exchanged the original belt with a new original belt. This failure didnīt appear some month ago, when it was warm and I didnīt have to wear more than one shirt. So I belive it could depend on temperature or on what you wear.
You can have a look a the overlay of HR-curves measured by Globalsat GH-625XT and with Polar S810i,
It seems Polar has a better filter for disabling noise; the values are swinging in a smaller range than the values measured by GS-watch.
http://www.usglobalsat.com/forum/index.php?topic=3982.msg11950#msg11950

An other test with using Polar belt "Wearlink T31 coded" has delivered a better result.
This can be seen here:
http://www.usglobalsat.com/forum/index.php?topic=3982.msg11950#msg11950

It seems with an other belt the problem is solved.

Iīll do more tests with this combination.

Best regards

Longjog
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http://www.gs-sport-servicecenter.de.vu/

GH-625M, GH-625XT, GH-505, GH-561, GB-580P, BT-338
Germany
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