TN90 VU Meter Blue Lake Audio Level Meter For Sound Pressure Measurement

TN90 VU Meter Blue Lake Audio Level Meter For Sound Pressure Measurement DESCRIPTION Features: * Strict quality control standards to build and test. * Stable performance, high reliability. * TN-90-VU meter head meter pre-stage tube DB sound pressure with backlight board. Specifications: Part name: VU panel meter Model: TN-90 Material: ABS Pointer material: zinc, copper-nickel alloy Color: as shown in the figure Pointer swing direction: from left to right Size: Pointer length: 44±1 mm from the center axis to the needle tail Pointer width: 0.45±0.05 mm Electrical performance: (as follows) Standard test conditions temperature: 20, humidity 70%. It can also be tested at normal temperature and humidity The sensitivity of the flow meter pointer from for zero scale to maximum scale is 960uA±8% (full scale position) Internal impedance: 650±10% Insulation impedance meter box plus 500V DC circuit plus 50M ohm shell The electrical insulation impedance of the circuit is the insulation value of the 500V DC voltage test. When using the standard position, the pointer overlaps with a for zero error of ±1mm and tilts 90 degrees, making the error range of the ±1mm pointer measure the current torque plus three times the full-scale current and slowly decrease to the value of the electrical flu degree 1/2 reading, The pointer returns to the dial within 1/3 of the coupling current friction meter and slowly increases or decreases to a certain value, indicating the error point range ±1mm. The current value of the pointer indicates the position of the time, which takes second or less. Package Contents: 1 x TN-90 VU Panel Meter