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Selcom Security CAYMAN Operating Manual

Nonlinear junction detector
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NONLINEAR JUNCTION DETECTOR
ST-402 'CAYMAN'
OPERATING MANUAL
English

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Summary of Contents for Selcom Security CAYMAN

  • Page 1 NONLINEAR JUNCTION DETECTOR ST-402 ‘CAYMAN’ OPERATING MANUAL English...

  • Page 2: Table Of Contents

    OPERATING MANUAL CONTENTS Page 1. Description 1.1. Purpose 1.2. Delivery Package 1.3. Main Technical Specifications 1.4. Principles of Operation 1.5. Operation Modes 1.6. Structure 1.6.1. Antenna Module 1.6.2. Main Unit 1.6.3. Telescopic Arm 1.6.4. Controls 2. Use 2.1. Preparation 2.2. Adaptive Mode 2.3.

  • Page 3: Description

    • any other devices utilising semiconductor technology ST-402 Cayman allows detecting electronic devices, whether active or not, as well as finding their exact location. It also enables one to distinguish between return signals from real semiconductors and other kinds of responses, such as those given by corrosion or metal-oxide- metal structures.

  • Page 4: Main Technical Specifications

    5,8kg 1.4. Principles of Operation ST-402 Cayman is a nonlinear junction detector, or NLJD. Instruments of this type employ active detection, i.e. they emit probing signals and analyse the return. Their primary search targets are electronic devices, and those typically consist of circuit plates with conductive elements and various semiconductor parts connected to them, such as diodes, transistors, and microchips.

  • Page 5: Operation Modes

    During adaptation, the antenna must be pointed away from electronics and large metal objects. 1.6. Structure Structurally, the ST-402 Cayman NLJD consists of the main unit and antenna module, that are connected with a telescopic arm. The main constituents are shown in Fig. 2. Fig. 2 The numbers in Fig.

  • Page 6: Antenna Module

    OPERATING MANUAL 1.6.1. Antenna module The antenna module comprises a receiver- transmitter unit, a control-display unit, and an aerial, all of which are assembled on a single platform and incorporated in a single body. The antenna is mounted at the end of a telescopic arm by way of a hinge joint that allows adjusting the incline within the vertical plane along the rod’s axis, as shown in Fig.

  • Page 7: Main Unit

    1.6.2. Main Unit The main unit of ST-402 Cayman is housed in a durable plastic body (2, Fig. 2) fitted on top with a handle (5, Fig. 2) with three control buttons (15, Fig. 2). It has a battery compartment (3, Fig.

  • Page 8: Controls

    OPERATING MANUAL A twisted cable goes through the arm, connecting the antenna with the power and control units housed in the main body. Fig. 6 shows the device with the arm retracted, and fully extended. Fig. 6 1.6.4. Controls Three control buttons are at the front of the handle (Fig. 7). The mode-setting button (2, Fig.

  • Page 9: Adaptive Mode

    ST-402 CAYMAN NLJD Fig. 8 Make sure the power switch (12, Fig. 2) is in the leftmost position (off). Connect the power-and- control cable plug (8, Fig. 2) to the socket on antenna module (8, Fig. 4). Switch on the device by turning the knob clockwise;...

  • Page 10: Operational Check With Test Dummies

    If both distances exceed the required minimums, the device is functional and operation-ready. 2.4. SEARCH Mode Once ST-402 Cayman has been prepared and proven functional as described above in 2.1 – 2.3, it can be put to use. When activated, the device starts up in SEARCH mode, and the receiver gain is by default set to maximum, which is displayed by 5 lit segments of the TUNING indicator.
  • Page 11 ST-402 CAYMAN NLJD Items known to contain semiconductor components (electronic instruments, office and home equipment, communication devices, etc.) are checked by other means. When running checks on enclosing structures, it is important to set a suitable receiver gain. If excessive, it may well cause detection of objects behind the walls, which may be a problem when there is no access into the adjoining spaces.

  • Page 12: Listening (Audio Mode)

    *Upon switching to AUDIO, none of the TUNING bar segments are lit, which corresponds to #0 frequency combination. The ST-402 Cayman NLJD allows listening to demodulated signals while probing with six different frequency combinations. Each combination, indicated by leds on the TUNING bar, is suited to deal with a particular category of nonlinear objects.
  • Page 13 ST-402 CAYMAN NLJD Table 3 indication on TUNING bar freq. combination # gauge bar # in SEARCH mode Use buttons to change probing frequency combinations (1 and 3, Fig.7). Table 4 shows typical results of analysing targets with nonlinear properties.

  • Page 14: Electric Power Supply

    AUDIO mode to SEARCH. 3. POWER SUPPLY ST-402 Cayman is powered by two Li-ion rechargeable batteries (type 18650). 4 batteries are included in the delivery package. The total run time on one battery charge is from 3 to 4 hours, depending on the modes employed;...

  • Page 15: Storage And Transportation

    ST-402 CAYMAN NLJD 5. STORAGE AND TRANSPORTATION The device must be stored in heated storage facilities pursuant to GOST V9.003–80 (ГОСТ В9.003–80). The following conditions must be maintained: 1) ambient temperatures from + 0 to 50°С; 2) relative air humidity 80 percent at 30°С;...

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