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Gold Detector F75 Fisher Lab ( Alat Deteksi Emas ) |
|
Specifications |
|
Mechanical |
S-rod with electronics housing mounted on handgrip, 3-piece breakdown, batteries under elbow, 2-way armrest adjustment forward/backward & around forearm. |
Searchcoil |
11” ( 28 cm ) open-frame elliptical double-D, waterproof. |
Batteries |
4 AA, alkaline ( not included ). |
Weight |
3.5 pounds ( 1.6 kg ) with alkaline batteries installed. |
Static Balance |
Force in vertical plane normal to elbow 0.47 pounds ( 0.22 kg ).Varies with adjustment and user’s stance and arm/hand physiology. |
Dynamic Balance |
Axial moment, 0.29 foot-pounds ( 0.39 newton-meters ). Varies with adjustment and user’s stance and arm/hand physiology. |
Sweep Effort |
Lateral moment 5.2 foot-pounds ( 7.1 newton-meters ). |
Operating Principle |
VLF induction balance |
Operating Frequency |
Nominal 13 kHz, quartz crystal timing reference |
Basic Sensitivity |
6 x 10 9 root Hertz ( detectivity ) |
Lag Coefficient |
78 milliseconds |
Reactive Overload |
Approximately 10,000 micro-cgs units ( volume susceptibility ) |
40,000 micro-cgs units with sensitivity < 30. |
|
Resistive Overload |
Approximately 1,200 micro-cgs units ( volume susceptibility ) |
4,800 micro-cgs units with sensitivity < 30. |
|
Ground Balancing Range |
From ferrite to salt, inclusive |
Discrimination Ground Suppression |
Combination of second and third order methods |
ID Ground Suppression |
Third order |
Battery Life |
Typically 40 hours with high quality alkaline batteries |
Estimated 80 hours with nickel oxyhydroxide batteries |
|
Estimated 65 hours with lithium iron disulfide batteries |
|
Operating Temp Range |
4 to +122 degrees F ( -20 to +50 degrees C ) |
Operating Humidity Range |
0-90 % non-condensing. |