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Huazheng HZ-B+ Acoustic And Magnetic Synchronization Fixed-Point Instrument Cable Fault Point Tester

Because of the extreme complexity of the power cable laying environment, the precise fixed point has always been a critical step in the cable fault test. Even if there is an accurate coarse measurement distance, it is difficult for us to locate quickly and accurately due to the influence of the external environment. Super silent intelligent fixed-point instrument is a portable, super mute, visualization, including path indication of the impact discharge receive precise fixed-point instrument, with high voltage impact generator, using the impact discharge in the cable fault point of the magnetic field signal and sound signal time difference to determine the precise location of the cable fault point, and new technology, the background intelligent sound tracking noise reduction continuous optimization, perfect sound effect, by the headset discharge sound, can be used to assist to determine the position of the cable fault point, error within the diameter of the probe. With the function, it ensures the fast positioning.

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    I.Overview Of The Point Point

    When the fixed point instrument uses the continuous impact discharge at the front end, the impact discharge sound of the fault point within the rough measurement distance spreads on the ground above the cable, which is recorded by the ground exploration sensor on the ground. The distance between the detection point and the real fault point of the cable can be calculated in two ways, one is the volume of the impact discharge sound; the other is the time difference between the magnetic field signal of the synchronous discharge and the sound signal reaching the ground probe sensor。

    1.1 Technical characteristics

    · Excellent discharge sound quality, quieter background, monitoring headphones used to quickly and reliably point the fault point location

    · The magnetic field signal can be recorded selectively for higher fixed-point accuracy, and the trigger threshold of the sound channel and the magnetic field channel is set fully automatically

    · Manual / automatic ultra-mute technology

    · BNR intelligent background noise reduction technology

    · On and off the impact discharge volume ceiling

    · The receiver uses a black arrow to automatically show the forward direction of the precise fixed point

    · Use a yellow mark line in the receiver to indicate the relative left and right position of the central axis of the fault cable, ensuring that the fixed point is always directly above the cable

    · The time difference between the two times before and after the impact discharge is used to determine the precise position of the fault point

    · Special self-landing landing probe sensor, and equipped with soft pavement, hardened road, lawn sensing joints

    · Choose a reliable import connector, to ensure the purity of the sound, humanized design of the highly adjustable probe handle, very suitable

    1.2 Standard configuration

    · One receiver host, including a shoulder strap

    · One sensor (ground-finding microphone)

    · One height adjustable handle, height range of 450 750 mm

    · One headset, sound level sound quality

    · One signal line, to connect the receiver host and the sensor, with a length of 1.20 m

    · A hard ground probe, 18 mm long

    · A grass probe, 75 mm long

    · A charger

    · An instruction manual .

    1.3 Technical parameters

    item

     parameter values

    Impact-discharge sound magnification

    >90dBThe shock discharge volume limit of 84dB (A) can be turned on or off

    Sensor dynamic range

    · sound channel

    · Magnetic field channel

     

    >104dB

    >110dB

    Sensor operating frequency

    100Hz---1500Hz

    Filter settings

    · No filter

    · low pass filtering

    · Band pass filter

    ·  high-pass filtering

     

    100Hz---1500Hz

    100Hz---400Hz

    150Hz---600Hz

    200Hz---1500Hz

    Power reply

    · alkaline battery

    · lithium battery

     

    >10 Hours

    Can be charged

    LCD

    TFT Super bright real color screen320x240

    1.4 Connection and control of the receiver host

    The following figure shows the connection method and control button of the host machine of the fixed-point instrument receiver

    1

    element

     functional description

    1

    LCD

    2

    One key adjustment key

    3

    Receiver host power on / off (after long press for 3 seconds) Backlight on / off (short press)

    4

    The dumb sound opens/ close

    5

    Connect the socket and connect to the sensor

    Connect to the socket and connect to the headset

    7

    Charger connection port

    a1a2

    Packing list

    No.

    Item

    Qty

    1

    Host computer of fixed-point instrument (lithium battery powered)

    1

    2

    Fixed point machine lower machine

    1

    3

    Fixed point meter connection line

    1

    4

    Headphones

    1

    5

    Handle

    1

    6

    Ground needle(For soft ground positioning)

    1

    7

    Charger

    1

     

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