Standing Wave Ratio SWR Watt Meter Radio Station VU Power Meter Transmitter

Standing Wave Ratio SWR Watt Meter Radio Station Forward 300W Reflected 60W Panel VU Power Meter Transmitter with Backlight Specification: 1 Movable part: Movable coil type 2 Appearance drawing: See attached page for details 3 Pointer material: Zinc-nickel alloy Pointer color: Black Pointer swing direction: From left to right Pointer length: 49 ±1mm from the needle end to the axis Pointer width: 0.45 ±0.05 mm 4 Cover material: PMMA 5 Lower cover material: ABS 6 Magnet material: AlNiCo sintered magnet 7 Frame material: SPCC 8 Enameled wire material: UEW polyurethane copper wire 9 The meter placement position: Vertical 10 Wire: 2 X 200mm#28 wires one black and one red. They are used to solder LED positive/negative poles. The end of the wire needs 5mm of copper to be exposed for easy soldering. 11 Backlight type 1: Two LED are connected in series 6V 20mA connected to a resistor 620Ω1/2W Type 2: Two LED in series 6V 20mA connect a resistor 1.3KΩ1/2W 12. Product size: 72*72*31mm Electrical performance: Standard test conditions: Temperature 20 degree humidity 70%. If there is no difference in the test results it can also be carried out in a normal temperature and humidity environment. 1 Current sensitivity: The direct current required for the pointer to be at the zero scale to the position shown on the scale plate. 2 Maximum current sensitivity: 200uA ±8% of the DC current required by the pointer at the zero scale to the full scale position of the scale. 3 Internal DC impedance: 750Ω ±8%. 4 Insulation resistance: Test its insulation value with a 500V DC voltage and the insulation resistance between the meter casing and the electrical circuit is above 50MΩ. 5 Friction: After adding the sensitivity current to the meter it is slowly reduced to zero. The error between the pointer indication position and the zero scale center is ± 1mm. 6 Zero position: The meter is in the standard position the zero-scale center is the reference and the deviation between the pointer position and the zero-scale center is ± 1mm. 7 Balance: When the meter is tilted forward and backward 90 degrees relative to the standard position the deviation between the position of the pointer and the center of the zero scale is ± 1mm. 8 Pointer sticking: An overcurrent of three times the full-scale current is added instantaneously and it will slowly decrease to 1/2 of the full-scale current after 7 seconds. At this time the pointer may stick to the bottom due to the difference in ambient temperature and humidity but the pointer should Return to the specified range within 1/2 range. 9 Pointer swing: The maximum current is added in a linear manner within 5 seconds and then reduced to zero in a linear manner within 5 seconds the pointer swings without stopping and other abnormal conditions. Note: Due to the different monitor and light effect the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-3cm measuring deviation due to manual measurement. Included: 1 X Power Meter