Fitness Technoligies Force Plate 400 Series User manual

Replacing a Load Cell in the 400 Series Force Plate
Determining which load cell is faulty
You will first need to determine which load cell is at fault. To do this you will need the XPV7 diagnostic software.
Available here: XPV7 Diagnostic Test Program
You can then follow the process outlined in the video below to determine the faulty load cell.
What to do if one of your channels is showing a high reading in the XPV7 Diagnostic test software.
When you have determined what load cell is at fault you can advise Fitness Technology of the colour code on the
LC that needs to be replaced (Blue - LC1, Green - LC2, Red - LC3 and Yellow LC4). This way FT can provide a
replacement LC complete with feral boots fitted to this LC that has been factory tested prior to dispatch. Also a
photo of the underside of the existing force plate should be sent as an email attachment to FT. This way FT can
identify the two cables (USB lead and Cat5E UTP patch cord) used on this setup. From this photo FT will be able to
identify whether replacement leads need to be sent with the replacement LC unit
How to remove the faulty Load cell
To complete a load cell replacement on a 400s force plate you will need the following tools.
1. 18mm socket and socket wrench.
2. 19mm open ended spanner
3. Phillips head screw driver.
4. Small flat screw driver.
5. Cable/side cutters.
6. Cable ties (200mm x 4.8mm or similar)

First you will need to locate the faulty load cell. In this example we are replacing 'load cell 1'
Remove the foot from the load cell by unscrewing it.

Next unplug the two cables from the force plate.
Then you will need to remove the force plates backing cover using the Philips head screw driver.
Lift the panel so that you can access the XPV7 Electronics Module (PCB) and unplug cables.

Start by unplugging the earth cables.
Then unplug the first of the load cells green Molex connectors. This will be the blue and green load cell cables or an
individual blue and individual green cable depending on what type of Molex connectors have been used.

Then remove the second Plug with the Red and Yellow cabled Molex connector. (these could also be individually
cabled to a single Mollex connector)
Once all cables are unplugged completely remove the backing cover. You can then remove the other backing cover
as well.
Once both covers are removed you can remove the foam packing to allow access to the cabling of the force plate.