Driver Board/1pc TN-90/2pc TN-90/2pcs TN-90 Pointer VU Meter + 1pcs Driver Board Pre-stage DB W/Balight Power Amplifier Board-1pcs Driver Board

Driver Board/1pc TN-90/2pc TN-90/2pcs TN-90 Pointer VU Meter + 1pcs Driver Board Pre-stage DB W/Balight Power Amplifier Board

You have four options:

● 1pcs Driver Board for VU Meter● 1pcs TN-90 VU Meter● 2pcs TN-90 VU Meters● 2 with 1: 2pcs TN-90 VU Meters + 1pcs Driver Board for VU Meter

Parameters：

● Pointer material: zinc white copper● Pointer color: orange● Pointer swing direction: from left to right● Pointer length: 44 ± 1mm from the center axis to the needle end● Pointer width: 0.45 ± 0.05 mm● Electric meter use direction: Vertical

Electrical performance:

● Standard test conditions: temperature 20 ℃, humidity 70%, if there is no difference in the test results, the test can also be performed at normal temperature and humidity.● Current sensitivity: the pointer is in the zero scale to the maximum scale (full scale position) Sensitivity 960uA ± 8%.● Internal impedance: 650 Ω ± 10%.● Insulation resistance: 500V DC plus 50M ohm or more for the outer box of the meter and the electrical circuit. The insulation resistance of the meter housing and the electrical circuit is tested by 500V DC voltage.● Zero position: the standard position of the meter is used, and the point where the front of the pointer and the center of the zero scale are unified is the reference pointer and the zero scale overlap. The tolerance is ± 1mm.● Balance: The allowable error range of the meter when the standard position is tilted 90 degrees forward and baward is ± 1mm.● The pointer stis: When the full-scale current trles the overcurrent in an instant and slowly reduces to the current sensitivity reading of 1/2, the pointer will return to the scale of 1/3 of the scale.● Friction: When the current is added to the meter and slowly increased or decreased to a certain value, the error range of the indicated point is ± 1mm.● Braking: instantly add 2/3 of the current value of the scale plate, within one second from the start to the position indicated by the pointerverticalˈvərtikəl.

Special Test:

● Overload test Input ten times the full-scale current every five seconds, and this action is repeated nine times. Each time is 0.5 seconds, and the test remains normal.● Vibration test: After the meter is paaged, vibration is carried out on the vibration plate 1,000 times per minute up and down 4mm, 10 minutes per direction. After this test, 7-14 it remain normal.● Impact test: After the pa of the electric meter, it is dropped from a height of 30 cm on a 3cm thi wooden board. The X.Y.Z. three-direction test is normal.● Reliability test: After 100,000 times of current input to the calibration point, the current sensitivity limit is still within the standard Environmental impact test Temperature 50 ℃, humidity 85%, lasts 100 hours, after this test remains normal.● Terminal pull test The terminal must withstand a 1 kg pull for 60 seconds without being affected.

The Others:

● Operating temperature limit: -10 ℃ to + 60 ℃ RH 35 to 85%● Storage temperature limit: -20 ℃ to + 60 ℃ RH 35 to 85%● Do not put the meter under direct sunlight, and store the meter in the paing box to prevent foreign matter from entering the meter.● conditions Place the terminal about 3 mm in a tin plate at a temperature of 230 ° C for 3.5 seconds, and keep it normal after this test.● Solder temperature: Hold the gun temperature at 350 ℃, contact the terminal for 3.5 seconds, and the front end of the terminal is about 3mm in contact with the gun. This test remains normal.● Anti-static: dry nylon cloth is tested three times in the same direction on the surface of the transparent cover, and the difference between the pointers on the score is le than 1/3 of the scale length, and the position returns to zero after three seconds.● Bulb specifications: two white LEDs 2.8-3.0V (You can also change the balight to 12V, and we will send you p>

After the voltage p>

Paage include:

● 1pcs Driver Board for VU Meteror ● 1pcs TN-90 VU Meteror ● 2pcs TN-90 VU Metersor ● 2 with 1: 2pcs TN-90 VU Meters + 1pcs Driver Board for VU Meter

About shping
Shping and Pa All it will be double cheed and well paed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the paage to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedba, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at cheout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbaYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedba for the transaction.