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.