4pcs TN-90 DENON VU Meter Head Tube Amplifier Level Audio DB Table Bridge Power Sound Pressure Strap Chassis Backlight | Электроника

4pcs TN-90 DENON VU Meter Head Tube Amplifier Level Audio DB Table Bridge Power Sound Pressure Strap Chassis Backlight | Электроника

4pcs TN-90A DENON VU Meter Head Tube Amplifier Level Meter Audio DB Table Bridge Power Sound Pressure Strap Chassis Backlight

Note：

● The Japanese DENON original VU Meter, due to the restriction of the foreign trade agreement, the dial is not equipped with the original LOGO, and the internal lighting source is added to the original basis (the Tianlong original machine is equipped with lighting on the upper part of the watch case). The header of LOGO circulates freely in the market!

Parameters:

● Pointer material: zinc white copper ● Pointer color; white ● 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,can also be tested under 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 plus electrical circuit. ● The insulation resistance of the electrical circuit is tested by 500V DC voltage ● Zero position: The meter uses the standard posture, and the front of the pointer and the center of the zero scale are the reference The tolerance of the pointer and zero scale overlap is ± 1mm ● Balance: the allowable error range of the meter when the standard position is tilted 90 degrees forward and backward is ± 1mm ● The pointer sticks: When the full-scale current triples 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 pointer

Package include:

4pcs TN-90A DENON VU Meters