Hi Baz,
With all technical questions where there should be a definitive answer, it is far safer placing the question with the supplier or the manufacturer.
With the best intentions in the world, answers obtained from a third party site like this can be wrong. Terry's answer is not definitive for your model, and whilst I don't expect it to have a major safety impact, if the wrong figure is used, either the device will not function as intended or at worst it might over stress some components and cause it to break.