Tn-90 Pointer Vu Meter & Driver Board Pre-stage Db W/backlight Power Amplifier Board
3 reviews

SPECIFICATIONS
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
Maximum Power Per Channel: NO POWER
Model Number: TN-90 VU Meter
Features:
? 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 ? ± 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 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 includes:
? 1pcs Driver Board for VU Meter
or ? 1pcs TN-90 VU Meter
or ? 2pcs TN-90 VU Meters
or ? 2 with 1: 2pcs TN-90 VU Meters + 1pcs Driver Board for VU Meter

WARRANTY

We'll refund your money if the item hasn't been delivered within 40 days after purchase. You have 2 weeks to request a refund — until day 60.
Product doesn't match the description? Contact us within 30 days after you receive it!
In case of cancellation, money will be refunded to your account within 3 days.