Home Up

Metal Detector
MARINE SURVEY EQUIPMENT FOR SALVAGE, ARCHAEOLOGY & WRECK LOCATION

 

   

Home
Up

 

The Micro-Pulse is a self contained diver's handheld metal detector which can detect both ferrous and non ferrous metals. This compact design with it's fold back coil measures just 62 cms (2 feet) long when the search head is folded back. By using the latest surface mount technology, the Micro-Pulse packs all of it's electronics and batteries into the handle. At the heart of the Micro-Pulse is an ultra low power microprocessor that eliminates some of the controls required on older designs, the Micro-Pulse has just one control knob. It's compact size means that many of our customers treat their Micro-Pulse as an essential piece of dive equipment and clip it to their dive gear on every dive.

Don't think that because of it's size the Micro-Pulse is not capable of the same performance as other Pulse Induction Underwater Metal Detectors costing much more, it is. The Micro-Pulse can be fitted with a number of different size coils to give it the versatility to search for a whole range of metal targets. It has been specifically designed to meet the tough demands of diving and there are no underwater connectors to go wrong. The aluminium handle of each detector is precision engineered with O-ring seals and is anodized for maximum corrosion protection. There are two models in the Micro-Pulse range referred to as 1A and 1B.

 

Micro-Pulse 1A

Designed for use  by both amateur and commercial divers, the Micro-Pulse 1A uses our unique  vibrating handle to indicate the presence of metal directly below the search head. This model is ideal for dives in  low visibility water as it removes the need for the diver to wear cumbersome headphones or having to concentrate on some form of visual indication. 

The heart of the Micro-Pulse 1A is an ultra low power microprocessor that eliminates the need for the many control knobs found on most handheld pulse induction detectors. The Micro-Pulse 1A has the unique feature of combining an ON/OFF switch, a mode selection switch and a fine adjustment control all in one control knob. Simply switch on and set the  mode to either high or low sensitivity. Once the mode is set the microprocessor automatically adjusts the circuits offset until a slow pulsing vibration is felt in the handle. The control knob can now be used to fine adjust the vibration frequency.  Using high sensitivity will detect a whole range of  metal objects from coins to cannon etc with larger objects detected over one metre  below the search head. The low sensitivity mode is used to reject trash objects of low conductivity and larger metal objects buried too deep to dig out. When the detector head passes near a metal object the repetition rate of the vibration increases proportional to the size and distance to the metal object. The Micro-Pulse 1A was designed so that it is completely self contained and can easily be carried on every dive where the diver needs his hands free when not using the detector. 

 

Micro-Pulse 1B

Designed for use  by both amateur and commercial divers, the Micro-Pulse 1B uses  an earpiece to indicate the presence of metal directly below the search head. This version is ideal for the  diver searching rivers and beaches as audio signal can be set to a precise threshold to give maximum sensitivity to small objects like coins and rings. A waterproof earpiece is connected to the Micro-Pulse handle using a polyurethane sheathed curly cord. The earpiece can be easily slipped under the divers hood or alternatively it can be fitted in a set of headphones when diving in warmer waters where a hood is not required or searching along the surf line on a beach. For searching in shallow water and on beaches the Micro-Pulse 1B has an extension pole so that it can be used comfortably in a standing position.

 

The heart of the Micro-Pulse 1B is an ultra low power microprocessor that eliminates the need for the many control knobs found on most handheld pulse induction detectors. The Micro-Pulse 1B has the unique feature of combining an ON/OFF switch, a mode selection switch and a fine adjustment control all in one control knob. Simply switch on and set the  mode to either high or low sensitivity. Once the mode is set the microprocessor automatically adjusts the circuits offset then emits a single frequency tone in the earpiece. The control knob can now be used to fine adjust the tone frequency and amplitude until a low frequency tone is just audible in the earpiece. This is the optimum setting as the ear is very sensitive to changes in amplitude and frequency caused when the search head passes over a metal object.  Using high sensitivity will detect a whole range of  metal objects from coins to cannon etc with larger objects detected over one metre below the search head. The low sensitivity mode is used to reject trash objects of low conductivity and larger metal objects buried too deep to dig out. When the detector head passes near a metal object the amplitude and frequency of the tone heard in the earpiece increases proportional to the size and distance to the metal object. The Micro-Pulse 1B was designed specifically for finding small objects e.g. rings, coins etc in rivers or on beaches where maximum sensitivity to small objects is needed. 

 

A protective cap which fits over the control knob  on both the 1A and 1B to eliminate any chance that the metal detector might be accidentally switched on.

 

   Control Knob                Protective Cap                 

The Micro-Pulse 1A and 1B are supplied as standard with either 20 cm (8 inch) diameter coil or the new 25cm (10 inch) coil, please specify which coil when ordering. In addition to the two standard coils we offer a 38 cm (15 inch) coil which gives greater depth penetration. Simply unplug the existing 8 inch coil and plug in the new one, the microprocessor  will automatically calibrate the new coil for optimum performance. Larger coils detected metal objects at greater depth than smaller coils but loose some ability to precisely pinpoint smaller targets.

    Spare 30 cm (12 inch)  coil

 

Rechargeable Batteries & Mains Charger (UK 3pin Plug)

Both the Micro Pulse 1A and 1B are supplied with rechargeable batteries and a mains charger. The four AA batteries of type  Nickel Metal Hydride (NiMH)  with a capacity of 2600 mAh  can run the Micro Pulse for up to 8 hours between charges. The mains charger is 240v input with a UK 3 pin plug and can recharge the batteries in 14 hours. A fast smart charger is available which can recharge the batteries in 4-5 hours. It comes with a number of adapters so that it can plug into most of common mains power sockets world-wide and  also an in-car power lead. See the Accessories page for details.

 

150_mw1268-01 Mains Charger                            Recharging the Micro-Pulse

 

When the coil is folded back the Micro-Pulse 1A and 1B measures just 62 cm ( 2 feet)

 

Applications

Archaeology

Robust detector that can be used to map the locations of metal objects on a wreck site.

Survey & Salvage

Location and recovery of a wide range of metallic items including mooring chains, anchors, outboards, cables and pipelines.

Armed Forces/ Police

The pulsating handle used on the Micro-Pulse to indicate the location of a metal object is ideal when searching in low visibility. The self contained compact design with no external cables also simplifies the task of searching in low visibility situations.

 

Key Benefits

  • Small self contained metal detector that can be carried on every dive
  • Pulse Induction Technology for large detection range.
  • Easy to use with just one control knob.
  • Both high and low sensitivity mode.
  • Vibrating handle indication (1A), ideal for low visibility dives.
  • Variable audio tone for maximum sensitivity (1B)
  • Interchangeable coils for optimum detection range.
  • Rechargeable batteries, comes complete with mains charger.
  • Up to 10 hrs use from one charge.
  • Robust design 
  • Precision engineered anodized aluminium handle with 0-ring seals
  • 200 ft depth rating.

 

 

 

Send mail to sales@planet-electronics.co.uk with questions or comments about this web site.
Last modified: January 07, 2014