If a phx unit has gone through warm-up, Cal5.0 will not require a new warm-up if the unit failed calibration and remained ignited. In order to reset the warm-up on the SpanBox, use the the following procedure:
- Tap Calibration.
- Connect to the phx unit.
- Tap Next.
- On the Span Gas Confirmation screen, tap Manage Cylinders.
- Flame out the phx unit.
- Wait 1 minute.
- Tap Done.
- Tap Next. The self-check will then begin, resuming calibration.