Professional TX850 Underground Metal Detector

The New TX-850 is unique among gold prospecting metal detectors for its combination of high sensitivity to small gold nuggets and its versatile function as an allpurpose treasure detector.

The controls and features are tailored to gold prospecting, including a sophisticated ground balancing system, separate control over signal gain and threshold,and aunique discrimination control system. These features also make foragreatrelic-hunting detector. WhiletheTX-850 makes fora highly competentcoin-shootingdetector,its user interface and features are not specifically designed for this purpose. As a coin-shooter,you will notice that the TX-850 exhibits slightly lower sensitivity to high-conductivity coins,likeaU.S. quarter; this is a resul to fits specialized design to empha-size sensitivity to small, low conductivity metals like gold nuggets.

Device Specifications

Mechanical: S-rod with electronics housing on rod, 3-piece breakdown construction, nonmetallic telescoping lower rod, adjustable position armrest

Weight: 2 lbs, 8 oz with battery installed

Standard searchcoil: 11 inch searchcoil

Batteries: Single 9 volt rectangular alkaline

Operating principle: VLF induction balance

Operating frequency: 19 kHz, crystal controlled

Reactive overload: 10,000 micro-cgs (with standard searchcoil)

Resistive overload: 1,200 micro-cgs (with standard searchcoil)

Ground balance range: From ferrite to salt water inclusive

Discrimination ground suppression: Combination of 2 nd and 3 rd order methods

Target-ID ground suppression: 3 rd order

Battery life: 15+ hours on good quality alkaline

Operating temp range: 14 to 122 degrees F (-10 to +50 C)

Operating humidity range: 0 – 90% noncondensing

SEARCH TECHNIQUES

Target Verification

After detecting a target, do the following:

1. Walk around the target in acircle.

2.While circling the target, conttinue sweeping the search coil across the target.

3.Sweep once every 30° or 40° of the circle.