The safety catch is not correctly engaged.
If the safety catch is handled incorrectly on the DGC 7xxx with wireless probe, the function of the wireless system may be impaired. It is important that the safety catch is correctly engaged.
To release the safety catch, pull the grip cap on the top part; see Figure 1.
To ensure that the safety catch engages correctly, push the ring with the larger diameter against the lower part of the safety catch; see Figure 2.
Do not press the grip cap to make the safety catch engage.
