UWEX® 722 C Underwater Metal Detector Operations Manual
Operations Manual UWEX® 722 C _________________________________________________________________________ 2 Contact Information Copyright Ebinger Prüf- und Ortungstechnik GmbH Hansestr. 13 51149 Köln / Cologne Deutschland Tel: +49-2203-97710-0 Fax: +49 2203-36062 Email: info@ebinger.org Web: www.ebinger.org © 2005, Ebinger Prüf- und Ortungstechnik GmbH.
Operations Manual UWEX® 722 C 3 _________________________________________________________________________ READ INSTRUCTIONS IN CONJUNCTION WITH YOUR STANDARD OPERATING PROCEDURES (SOP’S) BEFORE DETECTOR USE - READ THIS MANUAL CAREFULLY BEFORE ASSEMBLING, OPERATING OR CARRYING OUT MAINTENANCE ON THE DEVICE. KEEP THIS BOOKLET IN A SAFE PLACE FOR FUTURE REFERENCE. - USE AND MAINTENANCE OF THE DEVICE.
Operations Manual UWEX® 722 C _________________________________________________________________________ 4 ___________________________________________________________________ © 2005, Ebinger Prüf- und Ortungstechnik GmbH.
Operations Manual UWEX® 722 C 5 _________________________________________________________________________ Contents 1. General Safety information 6 2. General 11 3. Principle of operation 11 4. Main characteristics 13 5. Constructional features 14 6. Putting into operation 15 7. Testing before use 16 8. Detector use 17 9. Suppression of interference 18 10. Battery change 20 11. Maintenance 21 12.
Operations Manual UWEX® 722 C _________________________________________________________________________ 6 1. General Safety Information This chapter contains important safety information, which has to be observed when using the detector. About this manual Important! • Please read and observe the following instructions before prior to the use of the detector: • You should carefully read the operation manual, before assembly, preparation for usage or operating the equipment.
Operations Manual UWEX® 722 C 7 _________________________________________________________________________ Product Safety Advice Technical failures WARNING – Do not use equipment with damaged cables or connection elements as you are risking short circuits, burns or electric shock! Replace faulty or missing components only by original EBINGER-spare parts to avoid short circuits, wrong polarity, electric shocks or overload.
Operations Manual UWEX® 722 C _________________________________________________________________________ 8 Awareness whilst operating the product WARNING – Equipment, which is used in danger inclined activities, shall only be operated according to valid SOPs and by qualified personnel which has been successfully trained according to the relevant national and international standards and regulations.
Operations Manual UWEX® 722 C 9 _________________________________________________________________________ Good Guidance German regulations and instructions on how to deal with unexploded ordnance found by accident may serve as guidance: • All munitions found shall not be touched, its position shall not be changed, the site shall be clearly marked and precautions taken to avoid intervention of the munitions by third parties. Inform your local police or EOD service.
Operations Manual UWEX® 722 C _________________________________________________________________________ 10 Pic. 1 UWEX® 722 C with single sided headset ___________________________________________________________________ © 2005, Ebinger Prüf- und Ortungstechnik GmbH.
Operations Manual UWEX® 722 C 11 _________________________________________________________________________ 1. General The UWEX® 722 is a high sensitivity eddy current metal detector for underwater and normal land use. It is Nato Stock coded under no. 6695 - 12 - 319 – 4209 and operates on the pulse induction electronics as used in the EBEX 420 PB family (NSN 6695 - 12 319 – 4209). The UWEX® 722 detects ferrous and non – ferrous metals and alloys.
Operations Manual UWEX® 722 C _________________________________________________________________________ 12 Short magnetic pulses, emitted by the search coil generate an electromagnetic field around the search head which induces eddy currents into conductive objects (i.e. metal) being within the reach of the detector. Fig. 1 : transmitted field and response field These eddy currents cause a secondary field, showing a decay characteristic specific to the object.
Operations Manual UWEX® 722 C 13 _________________________________________________________________________ The main advantage of the pulse induction method consists in the possibility to exclude the reading of interference with short responses signals by a delayed activation of the receiver. Interference from conductive soil, salt water or small metal scrap, i.e. nails or wires, can be strongly reduced by a decoupling in time. Fig. 3.
Operations Manual UWEX® 722 C _________________________________________________________________________ 14 5. Constructional features The UWEX® 722 C is a battery operated, pressure waterproof metal detector for underwater and normal land use. It consists of a search head with joint, which is flanged to the detector handle containing the detector electronics and the battery compartment. The controls consist in a rotary ON/OFF switch and a sensitivity adjuster on top of the search head flange.
Operations Manual UWEX® 722 C 15 _________________________________________________________________________ 6. Putting into operation For standard underwater use the detector may be used in its short version. For normal land use or when working in underwater vegetation the extension rod can be fitted to the threaded end of the detector handle if the slope is inserted into the extension rod. Pic.
Operations Manual UWEX® 722 C _________________________________________________________________________ 16 A multiple turn calibrator for coarse setting of sensitivity is placed close to the battery contacts inside the handle in the battery compartment. To open the battery compartment unscrew handle. To adjust standard sensitivity slide external sensitivity knob to mid position in its slot and calibrate sensitivity trimmer inside the battery compartment just below the audio threshold (Pict.7).
Operations Manual UWEX® 722 C 17 _________________________________________________________________________ Pic. 7: 8. coarse adjuster for sensitivity inside battery compartment Using the detector To inspect an area carry search head in scanning movement flat and parallel over ground. Make sure that searched strips overlap and avoid dead spots. The detector operates on a static mode showing metal objects by an audio alarm as long as the search head is held over a detected object.
Operations Manual UWEX® 722 C _________________________________________________________________________ 18 For pinpoint location of shallow buried metal the search coil may be used vertically over the signal area. From experience the detection signals can be interpreted in the right way. A small metal object buried next to the surface will cause a short but intense signal. A large metal object buried deep in the ground will cause a wide spread but much weaker signal.
Operations Manual UWEX® 722 C 19 _________________________________________________________________________ Pic. 7 Delay adjuster version until serial no 436 Turn upper trimmer marked 'Z' (approx. 3 - 4 turns) in clockwise direction to increase the delay, which reduces interference signals from saltwater and scrap metal. Now recalibrate detector sensitivity to audio threshold (lower trimmer marked 'Tone).
Operations Manual UWEX® 722 C _________________________________________________________________________ 20 FIG. 6: Delay switch inside detector handle 10. Battery change If the device is not used for a long time it may occur that the two O-rings beneath the handle stick to the surface and the handle only comes off after jerky anticlockwise rotation. The UWEX® 722 can be operated by a dry alkaline (6LR22), by a dry lithium (U9VL) battery or by a rechargeable NiMH battery of PP3 style.
Operations Manual UWEX® 722 C 21 _________________________________________________________________________ 11. Maintenance Pre – issue routine: Check equipment is tight, test battery power and detector functions. Routine after use: After use in salt-water wash detector externally with sweet water. Wipe with tissue and dry equipment with open battery compartment for approx. 1 h before storage. Routine upon return to stores: Check for completeness and correct function. Remove battery from battery compartment.
Operations Manual UWEX® 722 C _________________________________________________________________________ 22 12. Technical Data - Power supply. - Service life - Temperature range. Dimensions. - Search head - Length Weight. - Transit case Detection ranges factor* application range − − 1 x 9V E-Block (6LR61 or U9VL) Approx. 20 h (lithium 40 h) at +20° C -20°C to +55°C − − Approx. 200 mm Ø Approx. ø 40mm x 600mm − Short version approx. 60 cm − Long version approx. 118 cm − Approx. 1,6 – 1,8 kg − Approx.
