Unfortunately, Topcon units do not display the slope value when the matching feature is used. Check out @ronniemacjr's comment below how you can calculate the percentage. If you do want to see the percentage grade on the laser, I would recommend checking out Spectra Grade Lasers - they are the only ones that have this built into the laser. The feature is called "grade match" and is on the GL1425C and models above.
Sadly the Topcon units do not display the slope value when the matching feature is used. This is true for all Topcon models. To find your existing slope percentage you will need to measure distance/run & rise/fall between your laser and target point. Then divide your rise value by your run length (make sure to convert to same units) then simply move the decimal point right two positions. Dial the percentage into your laser on the axis and +/- you need then double check by adjusting your rod eye near to the laser and then verifying on your target point.
Thanks for this video. This was really helpful.
Great video and thanks! Is there a way to determine what percentage grade your at once you’ve grade matched.
Thanks again
Unfortunately, Topcon units do not display the slope value when the matching feature is used. Check out @ronniemacjr's comment below how you can calculate the percentage. If you do want to see the percentage grade on the laser, I would recommend checking out Spectra Grade Lasers - they are the only ones that have this built into the laser. The feature is called "grade match" and is on the GL1425C and models above.
Are you able to get the existing slope data that you matched?
Sadly the Topcon units do not display the slope value when the matching feature is used. This is true for all Topcon models. To find your existing slope percentage you will need to measure distance/run & rise/fall between your laser and target point. Then divide your rise value by your run length (make sure to convert to same units) then simply move the decimal point right two positions. Dial the percentage into your laser on the axis and +/- you need then double check by adjusting your rod eye near to the laser and then verifying on your target point.