Vanquish 440

Vanquish 440 | 540: Pinpoint and Depth Gauge

in Serious Detecting Blog

Pinpoint

Pinpointing helps you to quickly narrow down the location of a buried target, allowing you to determine its exact location before digging. The difference in tone and volume will help to locate the position and depth of the target. Minelab Vanquish 440 | 540 Pinpoint

Pinpoint Visualization

When Pinpoint is enabled, the target signal strength is displayed on the Discrimination Segments. This visualization helps you to accurately locate the buried target. As the centreline of the coil approaches the target, discrimination segments will fill from the outside towards the centre of the LCD. When the Discrimination Segments are all on, the target is directly beneath the centreline of the coil. Minelab Vanquish 440 | 540 Pinpoint Weak/off-centre target signal: Fewer discrimination segments are on. The target is located nearer to the outside of the coil. Minelab Vanquish 440 | 540 Pinpoint Strongest target signal: All discrimination segments are on. The target is located directly below the centreline of the coil.

Locate a Target with Pinpoint

  1. Holding the coil away from the approximate target location, press and hold the Pinpoint button to enable Pinpoint. The Pinpoint Indicator cross-hairs will appear on the display. The Pinpoint buttonThe Pinpoint buttonThe Pinpoint Indicator cross-hairs The Pinpoint Indicator cross-hairs
  2. Keeping the coil parallel to the ground, sweep the coil slowly over the target location two or three times. This calibrates the Pinpoint function for more accurate pinpoint audio responses.
  3. Locate the centre of the target by listening for the loudest signal and/or watching the Pinpoint Visualisation on the display. Note, the Pinpoint function progressively masks the target response by reducing the Sensitivity with each sweep until only a very narrow target response remains. This helps identify the exact location of the target.
  4. When all of the segments on the Discrimination Scale are on, the target will be below the centre of the coil.

Locate a Target Manually

It is possible to locate a target successfully without using Pinpoint, however, this requires practice. This method may be required when a desirable target is surrounded by trash.
  1. Sweep the coil slowly across the target location keeping the coil parallel to the ground.
  2. Locate the centre of the target by listening for the loudest target signal response.
  3. Make a mental note of the position, or mark a line on the soil with your shoe or a digging tool.
  4. Move to one side so that you can pass the coil over the target at right angles to your initial direction.
  5. Repeat steps 1 and 3 from your new position. The target is located where the two imaginary lines cross.
Minelab Vanquish 440 | 540 Pinpoint

Depth Gauge

The Depth Gauge indicates the approximate depth of a detected target. The Depth Gauge is a guide only. Fewer arrows indicate a shallower target, more arrows indicate a deeper target. The accuracy can vary depending on the target type and ground conditions. After a target is detected, the Depth Gauge will remain on the LCD for up to 5 seconds, or until the next target is detected. When there is no detection, the Depth Gauge icon and arrows are turned off. Here is an example of the Depth Gauge reading and the approximate target depth for a US quarter. Minelab Vanquish 440 | 540 Depth Gauge

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