Lornet - NLJD. Owner`s manual. (pdf. 338Kb)
Contents
1. It is possible to set maximum power level by pressing LEVEL button ft high U low in AUTO mode before a probing signal transmitter is turned on 7 An indicator line of current modes Continuous light of the indicator corresponds to ON position absence of light OFF position Light of 2 and 3 indicators means that only the detector receivers work and a probing signal transmitter is off When a transmitter is turned on 2 mode is set on default Simultaneous flickering of all indicators on the panel shows that a battery is discharged it needs to be replaced 4 4 On the side surface of the control panel see 1 in Fig 5 a slide type power switch is placed A slide position cor responding to ON is marked by a contrast point see 2 in i Fig 5 Power battery in the removed state is shown in Fig 6 where 1 removed battery back side 2 contact group of a battery 3 back side of the control pan el a socket for a battery 4 a contact group of the con trol panel The connection order of the battery is shown in Fig 7 To install a battery into a socket a battery should be placed in such a way that battery con tact groups and sockets are placed opposite and a battery hook comes into a socket catch without any warp see 1 in Fig 7 Then towards a pointer without extra efforts put a battery into a socket till a retainer clip clicks To remove a battery do the above mentioned actions in r2. 7 Tuning frequencies of receivers are equal to double and triple fre quencies of a transmitter 2 8 Dynamic range of the receiving path is less than 70 dB 2 9 Time of continuous operating with lithium lon battery at maximum emitting power is not less than 3 hours for pulse mode Pulse and 1 5 hours for CW mode CW At minimum emitting power time of continuous operation increases about two times 2 10 Weight of the device equipped does not exceed 1 1 kg 2 11 Operation condition ambient temperature 5 40 C pressure is not less than 450 mm of mercury 3 Structure Of The Device Design And Accessories 3 1 The device consists of the units and accessories listed in the Table Name Q ty A receiving transmitting antenna unit combined with an 1 indicator A telescopic arm with a control panel and a battery A mains charger for batteries Additional batteries Wireless telephones Appearance of the device is shown in Fig 1 where 1 LED indicator 2 A receiving transmitting antenna unit com bined with an indicator 3 A telescopic arm 4 A control panel with a power section and a battery attached below Wireless earphones chargers and additional batte ries are not shown in the figure Fig 1 4 Purpose Of Basic Units Of The Detector 4 1 A receiving transmitting antenna unit with built in LED indicators shown in Fig 2 is used for e Analysis
3. time by the indicator signal The batteries must be kept in a charged state 3 Charging should be done in a charger only included to the delivery set 4 Independent assembly disassembly and use of undue chargers are forbidden 5 When work is over or break in operating is too long it is recommended to remove a battery from the detector 6 To avoid short circuit of leads see 2 in Fig 8 in non use state batte ries are to be in isolating case 7 Search Recommendation 7 1 If possible remove electronic devices from the room examined If it is impossible examination should be done at decreased power emitted 7 2 Set maximum power emitted and one of the operating modes of the receiver 7 3 Place antenna unit parallel to the surface examined at the distance not exceeding 10 cm 7 4 Slowly moving antenna unit parallel to the surface examined and changing orientation of antennas analyze change of nature of the signal received by the 2 and 3 harmonics by the indicator visually aurally click repetition rate should be maximum 7 5 Analysis of levels of the receiving signal reflected by the 2 and 3 harmonics is made by number of LEDs lit on the corresponding indicator scale 7 6 Remove antenna unit from the surface examined or decrease output power and repeat measurements stated in cl 7 4 of the present manual 7 7 When artificial p n transition is found as a rule stable glowing of the indicator LEDs by the 2 harm
4. 3 2 Life time is 6 years 3 3 If the device fails during warranty period provided the customer fol lows all rules for operation transportation and storage the manufacturer is to make repair free of charge or replace the device 3 4 Warranty does not cover power elements 4 Acceptance Certificate ACCEPTANCE CERTIFICATE Handheld Detector of Semiconductor Components LORNET No name serial number is manufactured and accepted according to obligatory requirements of state standards current technical documentation and fit for service Technical inspection signature signature clarification date month year 5 Package Certificate PACKAGE CERTIFICATE Handheld Detector of Semiconductor Components lt LORNET gt No name serial number Packaged by according to the requirements stated in the given technical documentation title signature signature clarification date month year 6 Claims Data In case of package damage during transportation claims are put in to the transpor tation organization in the order stated If delivery set is not complete or handheld detector of semiconductor components LORNET is damaged provided a package is not damaged Act is made togeth er with a representative of the manufacturer If a defect appears during warranty period a customer is to send handheld detec tor of semiconductor components LORNET to the company manufacturer with an accompanying letter stati
5. HANDHELD DETECTOR OF SEMICONDUCTOR COMPONENTS LORNET USER MANUAL CERTIFICATE USER MANUAL 1 Introduction A handheld detector of semiconductor components LORNET further the detector is used for search and detection of electronic devices both in active and switch off state Operating of the detector is based on the property of semiconductor com ponents re emit the 2 and the 3 harmonics when radiating them by a probing UHF signal It is assumed that maximum response time of semi conductor components of artificial origin is at the 2 harmonic of the probing signal When radiating oxide films of natural origin maximum re sponse time is at the 3 harmonic of the probing signal LORNET detector enables to make analysis of the response time of the objects radiated both by the 2 and the 3 harmonics of the probing sig nals giving the possibility to identify electronic devices and natural oxide semiconductors reliably LORNET finds the best receiving frequency channel free from noise au tomatically enabling to operate the device in complicated electromagnet conditions Algorithm of frequency tuning used in LORNET chooses fre quency of the probing signal automatically in such point that noise level is minimum in the receiving channel of its 2 d harmonic Digital processing of a demodulated signal used enables to get maximum sensitivity There are two types of the signals emitted Continuous wave of carrier
6. antenna po Non Linear Junction Evaluator sition convenient for search Fig 3 1 Connector for electric cable 2 Hinge joint 3 A knob of a hinge 4 3 A control panel is used to control operating of the detector It consists of a case combined with a battery and fixed on the telescopic arm A con trol board buttons for operating modes control and display LEDs are in the case Control buttons are divided into two groups by func tional feature AUDIO placed in the upper half of the panel and POWER RF in the lower part Control panel is shown in Fig 4 The following buttons are referred to AU DIO group 1 Volume buttons for volume control ft high low 2 LSTN button for switching of acoustic display to output on the 2 or 39 harmonics 3 OUT button for switching acoustic output to earphones or a built in loudspeaker The following buttons are referred to POWER RF group 4 RF button for switching emission types of a probing signal CW con tinuous PULSE pulse 5 PWR button for turn on off a transmitter of the probing signal When it is turned on an automatic mode of output power control AUTO is set by default To switch over to a manual mode of output power control MNL press one of LEVEL buttons when a transmitter is turned on To return to an automatic mode turn a transmitter off and then turn it on 6 LEVEL buttons for control of emitted signal power in MNL and AUTO modes ft high 0 low
7. bing signal transmitter on pressing PWR button Here a pulse mode of the transmitter and an automatic mode of signal power change In the given mode sound information of the 2 harmonic signal response is put to the dynamic or head phones To switch over to manual mode of power control of the probing signal MNL indicator lights press one of LEVEL buttons after a probing signal transmitter is turned on Turn a probing signal transmitter off and then turn it on for reverse switch over If necessary to tap a response signal by the third harmonic turn 3 mode on using LSTN button on the control panel Normally while operating in rooms with a lot of electronic devices de crease level of the probing signal for 2 4 points counterclockwise from the initial one Optimum level of the probing signal is reached by experimental way 6 3 Simultaneous flashing of all indicators on the control panel indicates that a battery is discharged and need to be replaced urgently At that power should be turned off and a battery replaced 6 4 If a response signal for telephones needs to be tapped switch over acoustic indication in a mode of head phones for that press the corres ponding button on the control panel see 2 in Fig 6 and turn wireless phones on according to their User Manual Attention 1 Do not direct the antenna towards an operator and people nearby 2 While operating the device observe state of batteries constantly replac ing them in
8. e level If a receiving device is turned on when the detector is off then there is only a noise signal in the head phones at higher volume After turning on acoustic indicator signals corresponding to operating mode of the detector appear in the earphones 5 Safety Measures 5 1 By requirements of electric safety the detector is referred to protec tion class 1 5 2 Persons having taken instructing for safety measures while operating electric devices and measuring devices with open radiators of RF energy are permitted to work 6 Operating Order 6 1 Remove the detector from the package and a battery from a protec tive case connect a battery to the detector While transporting the device at negative temperature it is necessary to keep the device at room tem perature not less than 30 min not turning the device on 6 2 To start operating the device turn LORNET on by a power switch placed on the control panel Fig 5 At that 2 and 3 indicators on the control panel light indicating that power of the detector is turned on One yellow LED should light on the antenna unit a circle scale of power indicator of the probing signal Its initial position corresponds to maximum power of the probing signal Here a probing signal transmitter is off it is turned on after pressing PWR button only Indicators of the 2 and 3 harmonics should not light flashing of the first LEDs of 2 and 3 of scales is permitted Turn a pro
9. everse order Fig 7 4 5 Batteries charging is made by a mains adaptor and mains charger for batteries included into delivery set Appearance of the charger is giv en in Fig 8 The installation order of a battery into a charger is shown in Fig 7 Turn ON in dicator Plug of a mains adaptor Battery charge indi cator Fig 8 To charge a battery set a battery into a charger connect a mains adaptor to the charger and to the mains When a charger is turned on a green LED lights While charging a red LED lights which goes out when a battery is fully charged Charging time of the battery fully discharged is about two hours Wireless telephones consist of a receiving device and earphones Appearance of a receiving device and position of control units are shown in Fig 9 PHONES Socket for telephone connec CHARGE a m POWER Turn ON indicator lights when turns ON Socket for mains adaptor Slide type switch Charge indicator lights during charging Fig 9 Operating order of a receiving device Using a mains adaptor included into delivery set make full charging of a built in battery by charge indicator Use of another mains adaptors are forbidden e Connect head phones through a corresponding socket of a receiv ing device Turn a receiving device ON by a slide type switch control by a turn ON indicator e Using volume control set comfortable volum
10. frequency CW Pulse modulation of carrier frequency with pulse ratio of 100 Pulse This enables to combine long detection range and reliable identification of the devices found Mode of automatic control of output power simplifies actions of an opera tor LORNET can display signal levels of the 2 7 and the 3 harmonics at LED panel simultaneously Besides level of the 2 or the 3 harmonics can be estimated in turn aurallyby by click repetition rate reproducing via a built in loudspeaker or wireless earphones Presence of the detector of an envelope curve of UHF signal re emitted enables to tap active microphones and to use acoustic binding for easy search 2 Technical Parameters 2 1 Types of the signal emitted Continuous wave of carrier frequency Pulse modulation of carrier frequency with pulse ratio of 100 2 2 Carrier frequency is fixed with pitch of 0 2 MHz within 890 891 MHz Frequency selection is automatic Possibility of emitting at carrier frequency with minimum noise in a path of the receiver of the 2 harmonic is provided 2 3 Maximum emitting power in CW mode does not exceed 2 W 2 4 Peak power in a pulse mode does not exceed 10 W 2 5 Emitting power is controlled automatically or manually using a built in attenuator Dynamic control range is 30 dB from maximum value of output power and is separated into 11 levels 2 6 Real sensitivity of receivers is not worse than minus 150 dBW 2
11. ng the reason of the claim All claims put in their brief description and measured taken are recorded in Table 1 Table 1 Claim content Reason measures taken Notes
12. of interfering load of receiving path of the device which is made at each turn on of the detector transmitter Therefore during op erating when an interfering signal appears under complicated electro magnet conditions it is necessary to turn the detector transmitter off and then to turn it on from time to time hence selecting optimum fre quency automatically enabling the best sensitivity and detection range of semiconductor components e Formation of CW or pulse UHF signal e Receipt and digital processing of the 2 and the 3 harmonics of frequency Simultane ous display of signal le vels of the 2 and the 3 harmonics enables to differ signals of artifi cial semiconductors which are a part of elec Fia 2 tronic devices from natural corrosive ones appearing at oxidation of connecting points of various metals for sure e Demodulation of response time of the 2 and 3 harmonics their am plifying to the level required for tapping both to earphones and inner dy namic The possibility to control amplification at 20 dB is provided Tapping of demodulated signals of the 2 and 3 harmonics is made by an operator in turn e Display of levels of a probing signal 1 signals of the 2 9 2 and 3 3 harmonics Fig 2 4 2 Hinge joint of the receiving transmitting antenna unit with a knob is designed for transformation the unit into transportation position see Fig 3 Besides it helps omen an operator to fix
13. onic of the signal reflected While rapping a supposed place of p n transition readings of LEDs do not change 7 8 When natural p n transition is found there is stable light of LEDs of indicators by the 3 harmonic of the signal reflected While rapping the surface examined intensively readings of indicators by the 3 harmonic do not change as a rule The search technique offered does not contain all nuances in exact cases and it is a recommendation only CERTIFICATE 1 General 1 1 Before operating study User Manual for LORNET thoroughly 1 2 The Certificate is included to the delivery set and should be always near it 1 3 If the device is sent for repair or other place during operation the Cer tificate is to be passed with the device 1 4 Marks in the Certificate should be done in time 1 5 All records in the Certificate should be made by ink only distinctly and carefully Erasures blots and corrections unauthorized are not per missible 1 6 It is forbidden to make any notes or records on fields and a cover of the Certificate 2 Delivery set Serial A receiving transmitting antenna unit 1 A telescopic arm with a control panel and a battery I Wireless phones included a receiver and ear ir User manual manual a one piece _ 3 Warranty 3 1 Warranty period of LORNET detector is 18 months upon supply to the customer
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