Related Manuals for Minelab F1A4
Summary of Contents for Minelab F1A4
- Page 1 F1A4 Metal Mine Detector Issue: 1 June, 2005...
- Page 2 If applicable, students will be asked to stand and introduce themselves to include a short description of any experience in demining. Students will be organized into pairs and issued an F1A4 per pair (or one per student if numbers permit).
- Page 3 Avoid sitting on transport cases • Hard Transport Case is designed to protect the F1A4 during transit • It is recommended to keep the F1A4 secured in the Hard Case when not in use. Minelab Countermine Division Safety through Excellence...
- Page 4 Referring to the slide showing a photo of a training monoloop Coil. It is important to mention that part of the F1A4’s superior capability is due to its Coil design. Give a brief description on the monoloop coil design explaining that no separate transmission and reception windings exist, just one winding performing both roles.
- Page 5 15 cm. The Test Piece is a vital piece of equipment to ascertain whether the F1A4 is working to its optimum performance. Make sure the Test Piece is carried by each deminer on their person.
- Page 6 F1A4 Operator Instructor Notes and Syllabus Stowing the detector. Use the packed Compact (carry) Bag to indicate the locations of the stowed F1A4 components. Mention the following: • Check for damage/cleanliness. • Have students be able to name each item.
- Page 7 • Secure the Handle. As you take the F1A4 out of the Compact Bag secure the Handle in one place by locking the Handle Camlock. This will prevent it from sliding up and down the Upper shaft while you are presenting.
- Page 8 F1A4 Operator Instructor Notes and Syllabus • • • • Secure Grommet. Show both Grommets and explain the reason for their existence (reduces stress on cable) and ability to shaft or hip mount the Control Fourteen Box. Stress the importance of the selected Grommet being properly locked into the Keyway opening located at the top of the Upper shaft.
- Page 9 F1A4 Operator Instructor Notes and Syllabus Disassembly. Nineteen Reverse the procedure to demonstrate disassembly. While disassembling place each component back into the Compact Bag paying particular attention to the: • Correct location of each component as shown on the reverse side of the field guide.
- Page 10 Principle of Operation. Multi Period Sensing. Demonstration of Ground Balancing. TEACHING POINTS Revision. Nominate selected students to assemble and disassemble the F1A4 in front of the class. Principle of Operation. Twenty two Using the slides, explain the principle of metal detection. Emphasize: •...
- Page 11 F1A4 Operator Instructor Notes and Syllabus Multi Period Sensing. Twenty four The F1A4 uses three channels in its electronics comprising two target channels and one ground channel. MPS successfully and easily detects the presence of mineralized ground and ignores its effects.
- Page 12 F1A4 Operator Instructor Notes and Syllabus Twenty six Twenty seven If the ground is mineralized, the ground will also provide a response after each pulse that will also decay over time. In conventional detectors, the interference from the ground cannot be removed unless the sensitivity of the detector is decreased.
- Page 13 F1A4 detectors - one per pair of students. One set (four size “D” cells) of fresh F1A4 detector. Variety of targets (inert AP and AT mines) buried in a previously cleared area (typically 2m x 3m area).
- Page 14 (demonstrate ‘Battery Low’ alarm with a set of weak batteries). • The F1A4 uses a Threshold Tone that provides a very soft tone to provide a positive indication to the operator that the detector is working correctly – the Threshold Tone also assists the operator in distinguishing tone changes caused by a small target.
- Page 15 Pinpointing Targets - Edge Detection. Thirty six Pinpointing with the F1A4 is very accurate due to the geometry of the Monoloop Coil. Because detection occurs over the entire Coil surface, “edge detection” can be used. Explain the F1A4 Coil geometry.
- Page 16 F1A4 Operator Instructor Notes and Syllabus Pinpointing Targets - Edge Detection – Pinpointing Small Targets Thirty seven Key points: • Explain to the students that when a possible target has been located continue to sweep the Coil over the location, but reduce the size of the sweeps to more accurately determine the position of the target.
- Page 17 Key points: • When two or more F1A4 detectors are operating in close proximity it is necessary to automatically tune each unit via the Noise Cancel procedure to set the operating frequencies so that signals do not interfere with each other.
- Page 18 DESCRIPTION Forty five LESSON 5 – OPERATOR MAINTENANCE AND CARE Aim. To understand how to care for and maintain the F1A4 detector. Classroom instruction. The training aids are as follows: F1A4 Training PowerPoint Presentation. F1A4 detectors - one per pair of students, and one per instructor.
- Page 19 F1A4 Operator Instructor Notes and Syllabus QUESTIONS Forty eight At the end of this period of instruction the student shall be able to carry out operator care and maintenance and correctly stow the equipment in the Compact Bag and the Transport Case.
- Page 20 M14 or equivalent inert mine. It is most unlikely that bigger targets in benign soil can be balanced out. Minelab does not advocate the drill that an operator can try to balance out a potential target in a mine lane as proof it is actual metal. However, if a small target was Ground Balanced then it should be obvious to an operator when the Coil is moved away from the target.
- Page 21 Water. Dig a hole and fill it with water (or use a plastic bucket without a metal handle) and show the F1A4 is not affected by operating in a wet environment. Place a target in the bottom of the hole or under the bucket and show your students that there is no loss of sensitivity.
- Page 22 Cleared evaluation area – constructed as one mine lane (1m wide and 5m long). • Targets to bury in the test area as described below – if inert mines are not available, F1A4 Test Pieces buried at varying depths will suffice.
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Page 23: Start Point
F1A4 Operator Instructor Notes and Syllabus As a minimum, set up the lane as follows: START POINT • A - Medium Size Target (PMA-2 det). A good strong tone so that they can demonstrate solid pinpointing technique. • B - Large and Small Target (PMA-2 and M14). Here they must demonstrate that they can actually detect two targets. - Page 24 F1A4 Operator Instructor Notes and Syllabus • C - Three similar targets in star shape (three Test Pieces). This brings out the lesson that they must sweep forward to clear ground. Some will note the first two targets and forget the upper third one.
- Page 25 F1A4 Operator Instructor Notes and Syllabus This is to certify that MINELAB F1A4 METAL MINE DETECTOR MINELAB ELECTRONICS PTY LTD Signed ………………… Dated: ………………… Minelab Countermine Division Safety through Excellence...