iSis - Release transport catch before use

I visited Regensdorf today and the nice people at Xrite ex Gretag swapped my transport-damaged iSis for a new one. And warned me to look at the QuickStart Guide:

There's now a head-lock catch on the under-side the iSis, which should be moved to the unlocked position before use. This catch is much nicer than the slip-in plastic head-guard which was included with the first iSis unit I was sent.

Before transporting the spectro again you're supposed to move the catch back to the locked position, open the device and sweep the head to the right until the head engages.

Edmund