Dr. Livingstone, I Presume WELDWISE 2400 - Manual (Page 107)

0435-INS-400 Rev. D
8-3
Installing/Swapping Toroids
Each toroid has its own properties. The Toroid Calibration Factor, established when the toroid was
manufactured, is clearly labeled on a sticker located on a cylindrical housing on the cable. This value is
entered directly into the monitoring program. The toroid does not need to be re-calibrated. When a
toroid is installed or replaced, a new calibration factor must be entered in the Toroid Settings screen.
To enter the toroid calibration factor:
1. From the Utilities Menu, select Toroid
Settings.
2. Enter the number shown on the calibration
factor sticker located on the cylindrical housing
on the cable. Be sure to input the value as a
whole number, without a decimal. For example,
a calibration value of 0.319 would be input as
319 Hit Enter to confirm.
3. Click the Update Cal Factor to put new
calibration factor into the monitor’s memory.
4. Use ESCAPE to end the toroid calibration. Return to screen; note the change in last weld’s current
RMS reading in Figure 8-3 after Cal. Factor update.
Figure 8-3 New Toroid Cal. Entered and Updated
Figure 8-2 Screen with Default Cal. Factor