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2pcs Class A P-200 Classic Lake Blue Level Audio Power Meter With Driver Board

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Item: 115698410453

eBay 2pcs Class A P-200 Classic Lake Blue Level Audio Power Meter With Driver Board Parameter: Pointer material: Nickel silver strips Pointer color: black Pointer swing direction: from left to right Pointer length: from the central axis to the needle end 110 ± 1 mm Pointer width: 0.45 ± 0.05 mm Meter use direction: vertical Electrical performance: 1. Standard test conditions: temperature 20 ° C, humidity 70%, for the test results are not different, can also be tested under normal temperature and humidity 2. Current sensitivity: the pointer is from the zero scale to the maximum scale (full scale position) Sensitivity 1200 uA ± 10 % 3. Internal impedance: 2KΩ ± 10% 4. Insulation resistance: 500V DC plus 50M ohm or more for the outer box and electrical circuit of the meter. The insulation resistance of the meter case and the electrical circuit is tested by the 500V DC voltage. 5. Zero position: The standard position of the meter is used. The position where the front end of the pointer is combined with the center of the zero scale is the tolerance of the reference pointer and the zero scale overlap is ±1mm. 6. Equilibrium: The allowable error range of the meter when the standard position is tilted 90 degrees back and forth ±1mm 7. Sticker: Instantly add three times of over-current to the full-scale current and slowly reduce it to a reading of 1/2 of the current sensitivity. At this point, the pointer will return to the scale of 1/3 of the scale. 8. Friction: When the current is added to the meter and slowly increased or decreased to a certain value, the error range of the indication point is ±1mm. 9. Brake: Instantly add the current value of the scale 2/3, within one second from the start to the time required for the pointer to indicate the position Special test： 1. Overload test: 10 times of full-scale current input every five seconds, this action is repeated nine times. Each time 0.5 seconds, 7-14 items remain normal after this test. 2. Vibration test: After the meter is packaged, it will be subjected to 1,000 times per minute and 4 mm vibration on the vibrating plate for 10 minutes in each direction. After the test, 7-14 items remain normal. 3. Impact test: After the meter is packaged, it will fall from the height of 30 cm to the 3cm thick board. The X.Y.Z. three-way test will be normal after 7-14 items of this test. 4. Reliability test: After 100,000 calibration point current input, the current sensitivity limit is still within the standard 5. Environmental impact test: temperature 50 ° C, humidity 85%, for 100 hours, 7-14 items remain normal after this test 6. Terminal pull test: The terminal must withstand 1 kg of pulling force for 60 seconds without being affected. Other： 1. Operating temperature limit: -10 ° C to +60 ° C RH 35 to 85% 2. Storage temperature limit: -20 ° C to +60 ° C RH 35 to 85% Do not place the meter in direct sunlight and store the meter in the box to prevent foreign matter from entering the meter. 3. Soldering conditions: Place the terminal about 3 mm into the tin plate at 230 °C for 3.5 seconds. Soldering temperature The temperature of the hand-held soldering gun is 350 °C, the terminal is in contact for 3.5 seconds, and the front end of the terminal is about 3 mm in contact with the soldering gun. 4. Anti-static: Test with the dry nylon cloth on the surface of the transparent cover three times in the same direction. The difference between the markings on the scribe is less than 1/3 of the length of the scale, and the position is returned to zero after three seconds. 5. Lamp specifications: white LED backlight board, parallel to PCB 3.0V can be changed to backlight for 12V Driver Board Introduction: The MCU is used to process the audio signal, and the driver board is best for small and medium VU meters (not suitable for large VU meters), match for 0~5Vrms of input level signals. Multi-function setup option, suitable for various occasions. Supports 3 types of power input, covering most of the power supply voltage, whether it is a household ordinary power supply or taking power from the amplifier itself, it is very easy. Provides 2 kinds of compression levels to choose from, 2x and 4x square compression,match for most of the audio input signal levels can be achieved in a large dynamic range . The driver board is the same as the principle of the professional VU driver IC. It can be matched with a professional meter to achieve accurate level display after calibrated to the 0dB position. Parameter: 1. Audio input: stereo audio (computer,MP3.etc., speaker output that does not support power amplifier) 2. Audio input level: <5Vrms 3. Operating Voltage: 4. 6-12VAC alternating current, 6-12VDC direct current, 200MA. 5. 5VDC,>1.5A. 6. Tungsten lamp backlight voltage: DC10V (adjustable brightness) 7. LED backlight voltage: 5V (adjustable brightness) 8. Pointer acceleration and deceleration damping function: support 9. The pointer fall speed adjustment: FAST/SLOW. 10. Audio compression function: supports 2 times and 4 times square compression. 11. Meter calibration function: support. 12. Size: 70*70mm. 13. Driver board output current: <50mA. How to use ( IMPORTANT!!! ): 1. When using the driver board for the first time or changing other VU meter, the maximum threshold position of the VU meter must be recalibrated, that is important,it’s driver board maximum output level pair to VU meter’s pointer maximum swing position .when youdone this setup option.you will get the best display effect, below are the steps: 1) Wiring the VU meter to the driver board by wiring instructions, then turn on the power. 2) In the default state, if the pointer has been move maximum, you can through adjust the both VU adjustable resistances ,to set VU meter’s pointer swing to normal position ,like about 0dB position. Else you can skip this step. 3) Push the function key to the "SET" position, enter setup mode. the drive board will output the signal of the maximum value to push the VU meter pointer swing to maximum position. Then you can adjusting the Vu adjustment resistance to swing pointer to the maximum position of the dial. 4) After adjustment done, must be reset the "SET" key back to null position, then the meter can be use at this moment. 2. When using tungsten bulbs, If the brightness of the left and right backlights are not balanced, you can adjust the backlight of each meter individually to balance their brightness (notice:LED backlight not support adjust individually.) 1. Tips recommended for professional users to calibrate the 0dB position. After done calibrating the maximum position the VU meter pari to driver board.Input a standard 0dB audio signal through the driver board audio input socket (it can be 0.775Vrms or 1.25Vrms, depending on your use environment), and then adjust the adjustable resistance set the pointer move to the 0dB position.done. 2. Note: Because there are many types ofVU meterfor sale on the market. The scale of each VU meter may be different. When combined work with this driver board, the pointer maybe can't point to the correct scale number . Except the 0dB position., which is normal. By setting 2X square Compression or 4X square compression mode. Choose the closest effect to match the your VU meter. NOTICE: 1. The type of VU meter must be a DC driven meter. 2. notice to the backlight work voltage of the VU meter, and then connect it to the corresponding backlight output port on the driver board. Generally, the LED is connect to 5V, and the lamp type is connect to 10V. 3. If noise is generated in your audio system, recommended powered the drive board separately, and do not share the power supply with the power amplifier or player. it's will make public ground noise. Package: 2pcs VU Meter Class A Power Amplifier DB Meter P-200 Classic Lake Blue Level Audio Power Meter 1pc Driver Board Payment Method: PayPal preferred Shippment: 1.We provide free shipping to international via China Post Airmail, and every parcel will be registered with tracking number. We can also ship by UPS/EMS/DHL/FedEx for alternative shipping method for corresponding fees. Please let us know before payment if You need split shipment. 2. International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions etc, If you have not received your shipment within 30 days from payment, Please contact us. 3.Time of Delivery:Based on the China Post Airmail and our experience, kindly please be that that To United States / United Kingdom / Australia, it takes around 10-15 business days; To Canada, it takes around 12-18 business days To Brazil / South America, it takes around 25-35 business days. To Italy / France / Spain / Germany/ Eastern Europe, it takes aournd 15-20 business days. Returns & Replacements & Repair: We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 Months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways. Feedback: 1) Your Feedback is really important to us, please take a few seconds to leave great feedback if you are satisfied with our product or service, thank you so much ! 2)We always offer the lowest price for best goods and service to you. 3) Please contact us before leaving neutral (3 stars) or negative (1-2 stars) feedback. We will try our best to solve the problem and leave you a happy shopping mood here. Thank you!

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