Minelab 4901 - 0059 quick start Sounds, Battery Behaviour

46SOUNDS

Threshold

This is the background ‘buzz’ given by the detector, to help distinguish between accepted and rejected targets.

Start Up Sequence

When the detector is turned on, there is

ashort three-note tune during its start- up sequence.

The X-Terra 70 is capable of using different types of AA batteries:

1.5 V Alkaline

1.5 V Carbon

BATTERY BEHAVIOUR 47

When the detector battery is low, the speaker volume limit will be reduced, saving battery power and extending detecting time. The headphone volume

Blanking

When a rejected target is detected, the Threshold sound ‘blanks’ (becomes silent) to indicate that a rejected target is underneath the coil.

Target Response

This is the sound given by the detector when a target is located and not rejected.

Positive Acknowledgement

The detector emits a short beep for every valid key press.

Negative Acknowledgement

The detector emits a low double beep to indicate an invalid keypress.

Completed

A three-note tune indicates the

completion of a function (e.g. Auto Noise

1.5 V Lithium (non-rechargeable)

1.2 V NiMH (rechargeable)

1.2 V NiCad (rechargeable)

Rechargeable Lithium Ion batteries will give a combined voltage above 8 V and therefore cannot be used with the X-Terra 70.

is not affected.

The use of headphones will extend battery life.

In Coin & Treasure Mode, a target that is highly conductive (e.g. a large silver coin) generally causes a high tone beep and ferrous targets generally cause a low tone beep.

Cancel channel calibration).

Patterns Erased / Factory Preset

A six-note tune will announce when these settings are complete.

The graph below is a representation of how 1.5 V and 1.2 V batteries may discharge over time. How the detector is used will affect how long the batteries last for.

In Prospecting Mode, a target signal will cause an abrupt change in the pitch and volume of the Threshold sound.

Pinpoint Response

When in Pinpoint, the detector emits a variable tone, that increases in tone and volume as the coil gets closer to the target.

Noise

A random, jittery sound indicates that the detector is picking up external interference. Sensitivity or Noise Cancel should be adjusted.

False Detections

Ground mineralisation can cause sounds that can be mistaken for target signals. False detections can be partial, random beeps (Coin & treasure Mode) or a continuous ‘warbling’ sound that differs from the sharper sound of a real target signal (Prospecting Mode).

Error

A six-note tune will sound to indicate a detector error (Error Messages, pg. 49).

Overload

If the coil is passed across a large shallow target or very highly mineralised ground, the detector might give a repeating buzzing sound. This indicates that

the target signal is too strong for the detector to interpret.

Low Battery Signal

When the battery power becomes low, there will be a short announcement tune (descending tones) every 60 seconds.

Low Battery Shutdown

A long announcement tune (descending tones) will sound just before the detector shuts down.

Overvoltage

If the battery voltage is too high (above 8V), the battery icon will flash and the detector will shut down.

Full

2 black segments inside the outline.

Half

1 black segment inside the outline.

Low

The icon will begin to flash for a period of time and there will be audio announcements every 60 seconds before the detector finally shuts down.

Battery Voltage (volts)

1.5 V Alkaline

1.2 V NiMH/NiCad

Approximate Time in Hours