SE-55FD Ultrasonic Type Discharge Detector
Product Information: Ultrasonic Type Discharge Detector
SE-55FD
The Ultrasonic Type Discharge Detector SE-55FD is a handheld
device that detects and displays ultrasonic noise generated by
discharge phenomena due to insulation deterioration and pollution
of electrical facilities exposed to high potentials. It captures
the discharge sound detected by the 40kHz ultrasonic sensor and
displays the discharge occurrence level in 5 dB units. The device
has a data output terminal that can be connected to a data logger
equipped with a stereo mini plug and available to import the data
to your computer. The reception frequency of the detector is
35dB~75dB (when the distance between the detection point of failure
and the instrument is 1.0m). The device is powered by AAA batteries
x 4ea and has a measurable distance of 1m~2m (distance between the
detection point of failure and the instrument). The detector comes
with a carrying case, instruction manual, AAA batteries x 4ea, and
stereo mini plug.
Product Usage Instructions
- Read the instruction manual carefully before using the
Ultrasonic Type Discharge Detector SE-55FD. - Insert all AAA batteries according to the battery polarity
indication on the back of the device. - Press the POWER switch to check if the battery voltage is
normal. The irradiation LED should light up. If the irradiation LED
does not light up or blinks, replace it with a new battery. - When exploring degradation targets for high voltage electrical
equipment such as transmission and distribution lines and electric
railways, be sure to use at a sufficient distance. It may cause an
electric shock accident. - To use the detector, press the POWER switch. You will hear a
small noise sound from the speaker and be indicated a noisy level
on the LED display. - The Ultrasonic Type Discharge Detector SE-55FD captures the
discharge sound synchronized with the commercial frequency,
reducing the effect of ambient noise to 1/30 compared to
SE-55. - The detector has excellent directivity (halfwidth) by LED
light, making it possible to easily detect the inside of a circle
with a diameter of 12cm from a position 1m away. - The device cannot be used to detect air leaks.
- If the irradiation LED flashes during detection, replace the
battery with a new one. Use alkaline batteries when the ambient
temperature is low.
Ultrasonic type discharge detector SE-55FD
Operation and Safety Notices Instruction Manual
Thank you very much for the purchase of the ultrasonic type discharge detector. For safety operation, read this instruction manual carefully and use this item correctly. Keep this manual always on hand while using this product. Should you lose this manual, please contact us. This measurement instrument is a device that detects and displays ultrasonic noise generated by discharge phenomena due to insulation deterioration and pollution of electrical facilities exposed to high potentials.
Safety Instructions This instruction manual uses safety alert symbols to ensure safe operation by users. The instructions with these symbols alert you to important notices to prevent potential hazards or damages to you or other people. The instructions with the warning symbols are used to alert you to the following hazards. Please understand them well before reading the main text of this manual. We are not liable for any damages caused by equipment failure, data damage due to erroneous operation, or loss of measurement opportunity, or incidental damages.
Warning Caution Prohibition
Operating this product incorrectly without following the messages with this “Warning” symbol could result in death or serious injury. Operating this product incorrectly without following the messages with this “Caution” symbol could cause personal injury and property damage. Depending on situations, it may result in serious results. If this display is ignored and the product is handled improperly, the original performance of this product may not be exhibited, this product may stop functioning, or the function may not be available.
Warning When exploring degradation targets for high voltage electrical equipment such as transmission and distribution lines and electric railways, be sure to use at a sufficient distance. It may cause electric shock accident.
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Caution 1.Never use the product with water on the surface and do not allow rainwater to enter into the product if use in the outdoor field. This is not waterproof structure. It may cause malfunction. 2.Avoid using or storing in direct sunlight, dust, high-temperature and humidity places. It may cause a malfunction. 3.Do not use batteries other than our specified. It may cause a malfunction. 4.When replacing the battery, make sure that the power switch is off. Replacing the battery when power is turned on may cause a malfunction due to incorrect connection. 5.Do not touch the illumination LED part. Do not allow hard or sharp objects to come into contact with the illumination LED part and DO not allow foreign matter to enter to this part. It may cause a malfunction.
Prohibition 1.Do not drop this instrument, also do not give a strong shock. It may cause a malfunction. 2.Do not wipe with benzine, thinner, alcohol, etc. If it is very dirty, wipe it off with a cloth dampened with a light neutral detergent, and then wipe it well with a soft cloth. 3.When installing the battery to this instrument, pay attention to the polarity and install it correctly. It may cause a malfunction. 4.Remove the battery when storing the product for long periods of time. 5. When using this instrument, hold the hand strap in your hand to prevent it from falling.
Conditions Irradiation LED is not available to lit
Irradiation LED is blinking
Cause Battery is dead Battery is inserted incorrectly Battery is consumed Even if the battery is replaced, LED will blink immediately
Solution Replace the battery Reinsert the batteries correctly Replace the battery Use alkaline batteries when the ambient temperature is low
Description of discharge detector This instrument is a hand held device that captures ultrasonic waves generated by the discharge phenomenon and detects these discharge points from a isolation distance. It cannot be used to detect air leaks.
Benefit 1, From the discharge sound detected by the 40kHz ultrasonic sensor, SE-55FD captures the discharge sound synchronized with the commercial frequency, the effect of ambient noise is reduced to 1/30 compared to SE-55.
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2, Due to its excellent directivity(halfwidth) by LED light, it is possible to easily detect the inside of a circle with a diameter of 12cm from a position 1m away. 3, The discharge occurrence level is displayed in 5 dB units. 4, SE-55FD has a data output terminal, you can connect it to a data logger equipped with a stereo mini plug and available to import the data to your computer.
The Specification of discharge detector
Reception frequency
40kHz±1kHz
Reception sensitivity
35dB~75dB(When the distance between the detection point of failure and the instrument is 1.0m)
Display resolution
5dB
Data output
35mV~75mV
Measurable distance
1m~2m(Distance between the detection point of failure and the instrument)
Reception level display
LED display
Power supply
AAA batteries x 4ea
Range of operating temperature
10 ~40, less than RH85% (w/o condensation)
Range of storage temperature
10 ~50, less than RH85% (w/o condensation)
Size
215*66mm
Weight
Approx. 280g (excluding the battery and carry case)
Accessories
Carrying case, Instruction manual, AAA batteries x
4ea, stereo mini plug
Outer dimension
1. Preparation for use
Usage of discharge detector
(1) The power supply for this unit uses AAA batteries x 4ea. Removes the battery cover on the 3
back and inserts all AAA batteries according to the battery polarity indication. (2) The battery voltage check is normal if the POWER switch is pressed and the irradiation LED is lit. If the irradiation LED does not light up or blinks, replace it with a new battery. If the irradiation LED flashes during detection, replace it with a new battery. (3) When you press the POWER switch, you will hear a small noise sound from the speaker and be indicated noisy level on the LED display.
2. How to detect discharge (1) Detection of discharge location: The power can be kept on by pressing and holding the POWER switch. When released, it returns to the “Stop” state. However, when the POWER switch is turned off, the level immediately before turning off is kept for about 2 seconds. Since the diameter of the circle illuminated by the LED almost matches with the directional characteristic (halfwidth) of the level detection, the faulty part can be easily detected.
(2) Sound pressure detection of fault location: The sound pressure level is adjusting to the level value when the distance between the fault location and the instrument is 1m. (3) Detectable distance: Please use in the distance between this instrument and the object to be measured within the range of 1m to 2m.
[About distance correction] The displayed value of this instrument is based on the time when the distance between the fault location and the instrument is 1m, but if the distance is changed depending on the location, make the following corrections as a guide. a. When the distance is 1m … It is as shown. b. When the distance is 2m … Add “7” dB to the displayed value.
[Connecting to a data logger] (1) Connect the included stereo mini plug to the data logger. Is the positive for left channel(chip) and negative for ground(sleep). (2) Connect the stereo mini plug to the output terminal of SE-55FD. (3) The dB value can be recorded directly in the data logger by reading 1 mV as 1 dB for the data output signal(E.g.55mV=55dB).
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