Digiscan Labs DNG-2300 User Manual
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Digiscan Labs DNG-2300 User Manual

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USER MANUAL
DNG-2300

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Summary of Contents for Digiscan Labs DNG-2300

  • Page 1 USER MANUAL DNG-2300...

  • Page 2: Operation

    The speaker OMS-2000 can also be used with the DNG-2300. It does not inject the noise into the surfaces but radiates it into surrounding space. The OMS-2000 is usually used in air ducts, ceiling tiles, etc.
  • Page 3 LOOPBACK INPUT The DNG-2300 has an input LOOPBACK which allows easy and fast tuning to the necessary level of noise. Optional probe microphone DNG-MIC and probe stethoscope DNG-STET are used for the required measurements. SUPPLIED SET The DNG-2300 is supplied with AC power cable and user manual. The TRN-2000 and the OMS- 2000 are sold separately.

  • Page 4: Rear Panel

    4. AC power input (220V for European version) TRANSDUCER INSTALLATION Since the DNG-2300 uses the TRN-2000, which is produced for the ANG-2000/2200, it is recommended to follow the instructions stated in the User Manual of the ANG-2000/2200. For your convenience, they are repeated below.
  • Page 5 but not necessarily against acoustic leakage. During Construction or remodeling of a screen room, the transducers can be mounted on the frame members, and then acoustic insulation and a decorative panel can be installed to the inside wall surface. This will help isolate the noise generated from the room as well as decrease the acoustic leakage out of the room.
  • Page 6 Figure 4 Plastic Disk Mounting The transducer may be attached to plate glass windows or other smooth surfaces using the plastic- mounting disk. The glass must be firmly mounted to avoid vibration. la. For temporary mounting, use double-stick tape and press the disk firmly to the clean and dry surface.

  • Page 7: Speaker Installation

    (figure 7) SYSTEM SETUP The DNG-2300 combats the problem of acoustic leakage by injecting noise onto the surface perimeter of a target area. Three channels allow the user to group similar perimeter surfaces together for level control. In large areas, more than one DNG-2300 should be employed.
  • Page 8 The DNG-2300 is setup so that the wall surfaces are all on the same channel. This allows the equalization of the noise for that particular surface material. The windows and ceiling have been combined on one channel for simplicity.

  • Page 9: Output Adjustment

    Figure 10 WIRING Attn: Do not turn on the DNG-2300 until you have completed wiring the transducers as recommended in this manual. Route the wiring so that it cannot be pinched, cut, tripped over, or damaged in any way. Connect the wires to the transducer using the female "quick connect"...

  • Page 10: Specifications

    The identification of the KSS with the contact microphone will expose the existence of a possible acoustic leak; these locations should be noted. Turn on the DNG-2300 and listen again for the KSS to verify effective masking. The KSS should not be heard through the generated noise. Adjust levels as required.
  • Page 11 PRECAUTIONS • Do not connect more than two transducers in parallel or loads that present impedance less than 3 ohms to the output. • Avoid areas with high moisture. • Do not drop. • Provide adequate ventilation around the cabinet. •...

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