TM 5-6675-329-13 & P
a steady flow of air. In extremely cold areas, Automatic Level NA2 should not be taken into heated rooms during non-
working periods but must be exposed, in a sheltered position, to the outside temperature. In this way the steaming-up of
the optics and the formation of water condensation in the Automatic Level NA2's interior is avoided, thus allowing survey
work to be restarted without additional delays.
Shipment or Transport - For a long journey, by rail or road, Automatic Level NA2 should be packed in its
Carrying Case NA2-80. When being carried over water in a small boat, it is advisable to secure the Carrying Case (with
the Automatic Level NA2 inside it) firmly to the boat, as an unsecured Automatic Level NA2 is almost certain to be lost if
the boat capsizes. At all other times, the best way to transport the Automatic Level NA2 in a vehicle is to carry it (in its
Carrying Case NA2-80) on one's lap; or to secure it in such a way that the Automatic Level NA2 cannot suffer any hard
knocks or shocks.