One. Overview CCT-4 type magnetic detector is a flux-gate gradient magnetometer，mainly used to detect ferromagnetic objects or other objects containing magnet objects within a depth of 60 meters (within a depth of 50 meters in water),such as shipwrecks and anchor chains, ancient shipwrecks, aerial bombs, iron-clad submarine cables and so on. Non-ferromagnetic objects such as plastic, copper, aluminum, etc. cannot be detected, and non-magnetic coverings in seawater have no effect on the detection results.
Two. Main technical features:
Magnetic field range application：±80,000nT±5%
2 Magnetic field gradient measuring range：±2000nT±2% 3 Resolution ratio：0.1nT 4 Remanence：≤1nT（±105 nT）。 5 Temperature drift：≤1nT/℃ 6 Long-term drift：≤5nT/hours 7 Parallel errors：≤20nT 8 Differential steering errors：≤20nT 9 LCD：4.3 inch touch display 10 Power supply：Li-ion, charger equipped 11 Working temperature：-10℃～+50℃ 12 Main engine carrying type：portable 13 Cable length：30～60m（standard），probe watertight at4.5 atmos
