TN-72 VU Meter 67mm x 33mm Window Size

Movable part: movable coil type

Pointer materials: Nickel Silver Strips

Pointer colour: black

Direction of pointer swing: from left to right

Pointer length: 33± 1mm from the center axis to the end of the needle

Pointer width: 0.45 ± 0.05mm

Direction of use: vertical

Electrical Performance

Standard test conditions: temperature 20℃, humidity 70%, no difference in test results,
It can also be tested under normal temperature and humidity.

Electric influenza degree: The sensitivity of the pointer from zero to the maximum scale (full scale position) is 500uA± 10%

Internal impedance: 650ohm± 10%

Insulation impedance: above 500V DC plus 50M OHM for the charging circuit of the meter outer box. Insulation impedance between the casing of the meter and the charging circuit is tested at 500V DC voltage.

Zero position: the meter is in a standard position. The place where the front end of the pointer is integrated with the zero scale center is the reference. The permissible error of the overlap between the pointer and the zero scale is ±1mm.

Equalization: Permissible error range ±1mm when the standard position of the meter is tilted 90 degrees before and after use.