Jumpers to stablize readings when no current

[jpellet]

I read about installing jumpers to stabilze readings that have no current at any given time..
can someone show me where/how these jumpers are installed....

thank you
jp

[Teken]

I read about installing jumpers to stabilze readings that have no current at any given time..
can someone show me where/how these jumpers are installed....

thank you
jp

Hello JP,

The jumpers are inserted into channels 1&2 of the green blocks. Please ensure the jumper wire is cut to the proper length and adequate insulation is present to avoid any shorting of wires.

Instructions and detailed pictures are indicated in my install thread located here on page 5. Please scroll down to the very bottom where you will see a trouble shooting guide for the most common issues and solutions.

http://www.brultech.com/community/viewt ... 9&start=40

Please kindly note that there are several steps and things to consider about this procedure.

1. If there is noise present that is not from the GEM but on the actual lines you will need to identify them and resolve it.

2. PT Reference: You can adjust the line voltage that the GEM indicates from your home. This ensures the measured line voltage is as accurate as possible and negates high / low power readings. Please ensure you use a DMM that provides true RMS readings.

Note, the voltage reading should be measured at the same outlet the GEM's PT transformer is plugged into.

3. CT's: To obtain even finer wattage readings you can adjust the values based on a known load. Like a 100 watt light bulb etc and adjust the settings in the GEM to match the load. I have detailed how I did this also and used loads that reflected low, medium, high, to ensure there was as little deviation from one to the other.

http://www.brultech.com/home/community/ ... f=3&t=1181

4. Advanced Tab: In the GEM Network Utility there are steps outlined to fine tune the amps settings. The reference manual in the link provided above will tell you what to do.

This step should be done absolutely last and can throw all your readings off if done incorrectly.

[jpellet]

well that jumper trick worked slick.... thanks... soooo.. im alittle confused about the amount of jumpers I can use... are you saying... I cant do this on all blocks... do WE know what a safe amount of jumpers we can use....

thanks
again
jp

[Teken]

well that jumper trick worked slick.... thanks... soooo.. im alittle confused about the amount of jumpers I can use... are you saying... I cant do this on all blocks... do WE know what a safe amount of jumpers we can use....

thanks
again
jp

Hello JP,

I would only place jumpers on the circuits that exhibit this issue. Brultech has indicated there should not be any issue in installing multiple jumpers.

I have multiple jumpers in place and its working fine in my environment. The *Install Thread* you're referencing indicated I observed some random issues when installing more than six. I have not seen any further issues and this may because of better COM / Engine firmware releases.

As stated, adding jumpers will not address *induced* noise from the line if they are present.