Lorenz Detecting Systems GmbH & Co. KG Röpkestrasse 12 30173 Hannover Germany Phone: +49 (0) 5 11 55 106 70 Fax: +49 (0) 5 11 55 106 71 mail@metaldetectors.de www.metaldetectors.de www.deepmax.
USERS MANUAL 3
The following metal detector LORENZ DEEPMAX Z2 designed to provide reasonable protection against Correspond to the following EC requirements: harmful interference in a residential installation.
INTRODUCTION Our aim at Lorenz: to build a most compact and a power PST (Pulse Shaping Technology) was added powerful metal detecting machine. The LORENZ in order to improve the performance and depth DEEPMAX Z2 series detectors are some of the ne- capabilities. The complete power management with west developments in the field of Pulse GBS metal efficient low electromagnetic interference conver- detectors made in Germany.
1. SAFETY INFORMATION For reasons of safety it is advisable to read this operating instruction manual first before turning the LORENZ DEEPMAX Z2 on. Special attention should be paid to the following notes. Check out, if the fast charger supplied with the DEEPMAX Z2 fits with the AC mains of your country. See chapter 12 for more detailed information. The supplied recharger will work at AC voltages of 100-240 VAC.
2. FUNCTION / APPLICATIONS The LORENZ DEEPMAX Z2 is based on the non- mo- cally. This ensures best performance with any coil tion; Pulse GBS (Ground Balancing System). Short connected. When enlarging the search coil diame- and intensive magnetic pulses are emitted by ter, the sensitivity to bigger objects will also rise. At means of a search coil first. Those magnetic pulses the same time smaller objects will be located less produce eddy currents in conducting materials like sensitive.
controls was therefore reduced and a calibration of the detector to our factory settings was also made to guarantee best results in the field. The LORENZ DEEPMAX Z2 was developed for professional search and locating applications. A variety of search coils can be connected to this metal detector. Large areas can be detected effectively especially with frame coils. Saltwater, most types of ground or temperature changes will only slightly affect the detection range of the DEEPMAX Z2.
3. LORENZ DEEPMAX Z2 INSTRUCTIONS On the front panel of the LORENZ DEEPMAX Z2 3. Connect the coil to the Z2 electronics unit after- there are three push buttons to change or alter the wards.
6. Select the different functions by pressing MENU GND 1 medium to high conductivity objects like shortly jumping to the next function or going back- big non ferrous metal objects will be indicated well, wards while pressing MENU for a longer duration. low conductive coins and foils will be indicated with 7. Select the values with ZERO upwards and with OFF downwards quickly pressing the same button repeatedly. After three seconds the Icons will stop to flash automatically.
SENS sensitivity adjustment setting: 1= low sensitivity and 5= high sensitivity VOLUME settings: 0 no audio and 9 very loud DLOG turns on in position 1 or 2 the built in data TONE 5 While moving the coil quickly over the ground the Z2 will respond with a low beep for ferrous and high beep sound for nonferrous or large ferrous metal objects. This is a motion function which will only work while moving the coil with a logger function in order to collect field data to pro- certain speed over a metal object.
4. DISPLAY AND SETTINGS During operation it is always possible to change a time delay reading. The number simply appears the settings of the Z2. Above the function icons when a reading was possible. The indication will be which will be shown all the time there is an intensi- stored as long as the search coil is over the metal ty bar graph, another +/- GPS direction finder and and turns off when the search coil passes the same.
metal is present or no double D coil is connected. This identification facility is tuned to the ground with the automatic ground balance. There will be a minimum speed of the coil necessary since this is a motion function. INTENSITY SIGNAL INTENSITY BAR GRAPH ICONS The signal strength will be indicated by the way of a large bar graph in the middle of the LC Display and an audio response from the speaker or headphones.
5. CONNECTORS / LOUDSPEAKER COIL JACK Search coils of different size and shape can be connected to this jack. The search coils available for the capacity when being connected to this jack. At the same time the GPS will support the Z2 built- in data logger. LORENZ DEEPMAX Z2 have got coded connectors After collecting field data the same can be trans- to adapt the electronics to the coil automatically.
6. OPERATING PROCEDURES Connect the search coil-connector to the COIL jack During operation no metal buckles or shoes con- of the electronics unit, and fasten the plastic sleeve taining metal parts should be worn. The same with of the connector by rotating it clockwise. At switch keys, coins, rings and watches.
As the LORENZ DEEPMAX Z2 offers highest sensi- this can be cancelled by pressing the ZERO control tivity with correctly tuned electronics, one should again shortly. The distance between the search coil check the threshold tone from time to time during and the ground has to be kept at a constant height operation. Although a constant ticking sound is not when searching in DELAY modes afterwards.
7. IDENTIFYING METAL OBJECTS This chapter is a summary on how to proceed with cable coils. For example, a metal box 20cm x 20cm the LORENZ DEEPMAX Z2, when locating metal, can give a signal of up to 6m in length when pas- while using the two metal classifications, intensity sing with a (2m x 2m) coil for example. It is therefore reading and the audio signal.
8. AUTOMATIC GROUND BALANCING GND Ground signals which are mainly derived from For automatic ground balancing tuning purposes magnetic iron oxides will be indicated with an in- please go on as follows: Hold the search coil hori- creasing audio response when lowering the search zontally about 1 m to 2 m over the ground where coil to the ground although no metal is below the there is no metal. Press the ZERO control for several search coil.
The LORENZ DEEPMAX Z2 should now be almost With turned on GND function the LORENZ DEEP- silent even if the coil is raised in the air or lowered MAX Z2 works with either reduced or higher to the ground again. If still indications occur it may sensitivity compared to DEL Delay modes. Some be possible that the Detector has been tuned to iron objects and very few non-ferrous metals with a piece of metal in the ground.
9. METAL CLASSIFICATION In order to get further information from the buried metal object the metal classification can be used. The two metal classification features offered with the LORENZ DEEPMAX Z2 are based on different conductivity reading 0-10 working principles.
Some smaller pieces of bronze may be indicated Note: When expecting mineralized soils it is neces- with a time delay reading between 50 and 60 na- sary to tune the detector to the ground first with the mely the same as some ferrous metal objects. At the two step ground balancing procedure.
10. SEARCH COILS / ACCESSORIES Different search coils can be connected to the LORENZ DEEPMAX Z2 for special search and location purposes. In general, small search coils offer great detection depths on small metal objects while large search coils offer the highest possible detection depths on big objects. The possible detection depths also depend on the setting of the detector, the kind of metal and the shape of the metal object and slightly on the type of ground below the search coil.
26CM DOUBLE D SEARCH COIL 35CM SEARCH COIL A special double D version of the 26 cm diameter coil This highly sensitive search coil has got very good with separate transmitting and receiving windings is depth capabilities on single coins and medium also available. This coil makes FERROUS / NON-FER- sized objects. Nuggets smaller than 5 mm in diame- ROUS indications on the display of the DEEPMAX Z2 ter should rather be detected with a 26 cm search possible.
Note: The electrical properties of the double D search coils may change when mechanical tension or high temperature is put on the coil when being used or stored not properly. The same with the connecting cable which should be fastened with the belt strap first before connecting it to the electronics unit to protect the same and to avoid broken cables.
0,67 m frame made of PVC-tubes for example. Never use any metal screws for the construction of a frame! This is the smallest frame mounted search coil which offers extreme detection depths for smaller and medium sized objects. Metal fragments and some coins will still be indicated.
2M X 2M (1 WINDING) UNIVERSAL CABLE COIL 8 M PERIMETER The 8m universal cable coil has to be laid to a single turn on a metal free frame and has to be fixed with tape for example. This particular search coil covers four times as much ground as a 1 m x 1 m frame coil does. It should only be used when searching for metal objects with a surface of at least 20 cm x 20 cm pointing towards the coil. Smaller metal objects will be located less effectively than with a 1m x 1m frame.
metal fragments make these two coils interesting. The two coils receive the same amount of interfe- The shape of these large coils should be the same rence but work in opposite directions. Therefore, al- as with the other coils namely round or square. It is most any interference is subtracted from each other also possible to build elliptical or different shapes while signals from the ground or metal objects will but this is only achieved at the expense of sensiti- pass to the electronics.
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12. BATTERY / CHARGER The LORENZ DEEPMAX Z2 is supplied with a built-in rechargeable NiMH battery which will power the electronics approximately 3 to 8 hours depending on the coil connected the settings of the Z2 and the environmental temperature conditions. The usage time will be 6 hours under average conditions. With the optional Battery + GPS module the battery capacity can be simply doubled when being connected to the Z2. Both batteries will be discharged simultaneously when doing this.
The maximum recharge time is limited at approx. The following safety information must be read befo- 3,5 hours on an empty battery depending on re using the charger supplied with every DEEPMAX ambient temp. and Battery condition. The rechar- Z2 detector: geable battery pack can be recharged at any time even if it is only used for a few minutes and the capacity is still very high. The Battery is protected and can’t be overcharged due to -delta U and temperature detection of the charger.
13. INTERFERENCE The LORENZ DEEPMAX Z2 was developed to ignore Near transmitters or when other metal detectors most electromagnetic interference EMI received are working close to the DEEPMAX Z2 interferences by the search coil. In some cases however there could also be expected. In general interference will are very strong interferences produced by power increase with the size of the search coil.
For further reduction of any pulsed interferences This will always guarantee a very stable operation put FILTER to a higher setting but this will also of the LORENZ DEEPMAX Z2. For the detection of result in a slower response speed which makes only smaller objects the available 1m x 1m double frame sense with frame coils but not with smaller coils.
14. DATA LOGGER / ANALYSING FIELD DATA To generate colour, image, surface or contour maps with the Lorenz DEEPMAX Z2, additional Hard- and Software is necessary, like an USB data transfer cable, Battery + GPS module (Power Bank), Lorenz Scripter Software with installation instructions available on our website for free download at Service and a Surfer software single user license available directly at Golden Software as well as a computer running on Windows.
objects and ground conditions will give for example. Fields of 20m x 20m or 10 x 20m make sense. It Areas of disturbances in the scans will directly lead makes no sense to scan very narrow fields with three to the different metals or ground signals and there- tracks only! To be sure that there is no overlap simply fore can be classified in different ways. The operator use the width of the coil like 1m for a 1mx 1m frame therefore can use the scans to his advantage in when walking each track.
5. Turn around 180 degrees and start the next track GPS has to come on when a Battery + GPS mo- backwards for example 1m next to the first one dule is connected the GPS is turned on and DLOG 1 pressing ZERO to start. Avoid overlaps of the tracks or 2 is selected and starts to flash when no accurate when searching track by track. GPS data can be received or during the warming 6. Stop the last track with ZERO and store the same as a new field while pressing OFF/ FIELD shortly afterwards. 7.
ANALYZING FIELD DATA Although the detector can be used with smaller search coils the data logger function is mainly developed for larger metal objects being at least 6cm x 6cm in size. Therefore, frames of 1m x 1m or even bigger should be in use to achieve best results. To analyse the different pictures generated with the software refer to the following instructions.
Looking at the Ground channels most of the ground and some of the smaller ferrous items will no longer be displayed when comparing them with the Delay channels.
Alteration to or opening of the device GUARANTEE This Detector is guaranteed against defects in materials and workmanship for two years within European Community and one year outside the EC, with the exception of batteries.
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17. SPECIFICATIONS ELECTRICAL DATA Z2 Search-frequency with small/large search coils connected BATTERY + GPS MODULE, OPTIONAL approx.
WEIGHT LORENZ DEEPMAX Z2 electronics control box ca. 1380g DISPOSAL NOTICE In accordance with directive 2002/96/EC of Euro- Telescopic S pole ca. 600g 26 cm single coil ca. 500g* 26 cm double D coil ca. 600g* 35 cm single coil ca. 600g* 35 cm double D coil ca. 800g* 44 cm single coil ca. 700g* 1m x 1m frame coil ca. 1900g* Universal cable coil 4m perimeter ca. 550g Universal cable coil 8m perimeter ca. 600 g* Universal cable coil 12m perimeter ca.
