LogoLogo
Gen 2.1
Gen 2.1
  • Introduction
  • Kayak
    • Getting Started
      • Assemble your kayak power meter
      • Charge your kayak power meter
      • Configure your kayak power meter settings
        • Blade tip to hand distances
        • Blade tip to blade tip distance
        • Blade twist
        • Blade type attached to shaft
        • Blade tip to datum distances
    • Calibration
      • Zero Offset
        • Zero Offset calibration
      • Scale Factor
        • Blades-on Scale Factor Calibration
        • Scale Factor calibration
    • Advanced
      • Adjust your clamp
      • Remove and attach your sleeve
  • Dragon Boat
    • Assemble, Charge and Configure
      • Assemble
      • Charge
      • Configure
      • Sleep
  • High-Kneel Canoe
    • Getting Started
      • How to assemble a high-kneel canoe power meter
  • Outrigger Canoe
    • Getting Started
      • How to assemble an outrigger canoe power meter
      • How to set the outrigger canoe power meter settings
        • Blade tip to handle distance
        • Blade tip to bottom hand distance
        • Blade kickback angle
  • SUP
    • Getting Started
      • How to assemble a SUP power meter
      • How to set the SUP power meter settings
        • Blade tip to handle distance
        • Blade kickback angle
  • General
    • Web Bluetooth App
      • How to place the power meter in deep sleep
    • Updating Firmware
      • How to update the power meter firmware using the Web Browser
      • How to update the power meter firmware using nRF Connect
    • Real-time Data
      • How to pair a Garmin Forerunner 910XT with a power meter
      • How to pair a Garmin Edge 1030 with a power meter
    • High Speed Data
      • How to start/stop recording High Speed Data
      • How to download High Speed Data (ANT)
      • How to view High Speed Data
      • How to change the High Speed Data settings
    • Shaft Information
    • Model Descriptions
      • Power Meter
      • Power Meter w/ High Speed Data
    • Firmware Changelog
    • Manufacturer's Warranty
Powered by GitBook
On this page
  1. Kayak
  2. Calibration

Scale Factor

PreviousZero Offset calibrationNextBlades-on Scale Factor Calibration

Last updated 5 years ago

A Scale Factor Calibration can be performed using basic and easily sourced components, or with a specifically designed calibration jig available for purchase from One Giant Leap. There is also the option to have the calibration jig manufactured yourself; the profile cut part files and assembly instructions are available here to download.

Setup

The calibration process requires the paddle to be setup in the following way:

  • Paddle shaft horizontal

  • Paddle assembled with the offset angle set to 90degrees Right Hand Twist

  • Supports located at the approximate blade centre and top hand positions

  • Calibration weights (with known weight) hung from the approximate bottom hand position

The supports can be as simple as blocks of wood resting on two separate tables. The space between the two tables is where the calibration weights will hang. Ideally the supports will have narrow width so that the paddle is supported at a definite spot which can be identified and measured. The calibration weight can be applied by suspending them from the shaft with a rope.

The calibration process requires the strain output to be recorded with at least 2 different calibration weights (heaviest weight at least 20kg). The values are then input into the calibration spreadsheet where the scale factors are calculated. The right and left shafts of a kayak power meter are calibrated separately, so the process must be carried out on the right shaft and then repeated for the left.