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        Recently our website has been counterfeited, this is the only official website of CRYSOUND, please do not be deceived

        Polarity tester
        Polarity tester
        • Polarity tester

        GVS139B Polarity tester

        GVS139B Polarity tester adopts pulse test, which is not affected by environmental noises. It can quickly and automatically identify the positive and negative polarity of loudspeakers, headphones, televisions, stereos, speakers, and voice coil receivers. It is suitable for production lines. Meanwhile, you can use a foot switch to switch between an external sweeper, F0, and impedance meter. It is the most suitable for the full-featured detection of speakers on production lines.

        • Fast and accurate
        • Simple operation
        • Excellent stability
        Features
        Product Advantages

        Product Advantages

        • GVS139B can accurately and quickly determine the positive and negative polarities of the speaker unit, each speaker in the loudspeaker, the earphone, and the receiver in a noisy environment. The positive and negative polarities are displayed with the aid of sound and lighting. Its operation is simple and no misjudgment is possible.

        • There are three sets of external input terminals and touch switch selectors to cooperate with other instruments to test the characteristics of speakers, which can greatly improve the productivity.

        • It can also accurately determine the polarity when used in a noisy environment (e.g. production line).

        Technical specification
        Technical specifications of GV3139B

        Measurement mode

        Pulse-based measurement method

        Pulse width

        0.4 ms

        Test speed

        Approx. 0.2s

        Pulse amplitude

        ≤10Vp-p

        Max. sensitivity

        ≤25cm

        Touch electronic switch

        A. WF level: suitable for woofer polarity test

        B. M&T level: suitable for polarity test of horn loaded MF and tweeter

        C. EXT1 - EXT3: signal input terminal connected to an instrument

        Test distance

        Measurement within 2 - 4 cm distance from the center point of the pressure-proof cover of the speaker to be tested

        Polarity determination

        Positive polarity: green LED indicator lights up and beeps.

        Negative polarity: red LED indicator lights up, but the buzzer does not sound.

        Number of operators

        The switch can be switched automatically, and the test of polarity and impedance can be done by one person.

        Overall dimension (mm)

        85(H)X 205(W)X 280(L)

        Instrument weight

        2.3kg

        Configuration checklist

        Main unit

        1 set

        Microphone cable

        1 pcs

        Power cord, signal line

        1 set

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        After-sales services
        • 20 years industry experience

        • 24 hours Technical Support

        • Professional engineers on line response

        • 2 hours response
          Solution within 2 work days

        • All life Costs Maintenance

        Activity Registration
        If you need to ask the price of CRYSOUND acoustic imager, reserve the free test for a limited time.Please input information and requirements according to the form, and we will arrange engineers to contact you as soon as possible.
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        Appointment Demo
        国产精品三级专区

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