Description: Standing Wave Meter Head Radio Station Power Meter Transmitter w/ Backlight SWR Parameters:Pointer material: zinc cupronickel Pointer color: black Pointer swing direction: from left to right Pointer length: 49 ± lmm from needle end to axis Pointer width: 0.45±0.05 mm Cover material: PMMA Lower cover material: ABS Magnet material: AlNiCo sintered magnet Frame Material: SPCC Enameled wire material: UEW polyurethane copper wire Electroplating position: vertical Wires: Two 200m#28 wires, one black and one red. They are used to solder LEDs Positive Negative. The wire ends need 5mm of copper exposed for easy soldering. Backlight: Type 1: Two LEDs in series "6V, 20mA", connect a resistor, 6200 1/2W Type 2: Two LEDs in series "6V, 20mA", connect - one resistor, 1.3KQ 1/2W Standard test conditions: temperature 20C*, humidity 70%. If there is no difference in test results, it can also be carried out in normal temperature and normal humidity environment Standard test conditions: temperature 20℃, humidity 70%. If there is no difference in the test results, it can also be carried out in a normal temperature and long humidity environment. 1 Current sensitivity: the DC current required by the pointer from the zero scale to the position shown on the scale plate 2 The DC current required for the maximum current sensitivity pointer from the zero scale to the full scale position of the scale plate: 200uA ± 8% 3 Internal DC impedance: 7500 ± 8% 4 Insulation resistance: test its insulation value with 500V DC voltage, the insulation resistance of the electric iridium shell and the electric circuit is more than 50MQ 5 Friction: After adding the sensitivity current to the electric iridium, slowly reduce it to the error ± 1mm between the position indicated by the zero pointer and the center of the zero scale 6 Zero position: the electric pole is in the standard position, the center of the zero scale is the benchmark, and the deviation between the position of the pointer and the center of the zero scale is ±1mm 7 Balance: When the electric iridium is inclined forward and backward by 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: Instantaneously add an overcurrent that is three times the full-scale current, and slowly reduce to 1/2 of the full-scale current after 7 seconds. At this time, the pointer may be stuck to the bottom due to the different environmental astringency. However, the pointer should return to the specified range: within 1/2 of the full scale 9. Hand swing: add the maximum current in 5 seconds in a linear way, and then reduce it to zero in a linear way in 5 seconds. The hand swings without stopping and other abnormal conditions Package: 1x Standing Wave Meter Head Radio Station Power Meter Transmitter w/ Backlight SWR Payment Method: PayPal preferred Shippment:1. Shipping to international by China Post Airmail, every parcel will be registered with tracking number. We can also ship by FedEx/TNT/EMS for alternative shipping method for corresponding fees. Please let us know before payment if you need split shipment. 2.International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions etc, If you have not received your shipment within 30 days from payment, please contact us. Returns & Replacements & Repair:We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways. Feedback:1)Your Feedback is really important to us, please take a few seconds to leave great feedback if you are satisfied with our product or service, thanks!2)We always offer the lowest price for best goods and service to you.3) Please contact us before leaving neutral(3 stars) or negative(1-2 stars) feedback.We will try our best to solve the problem and make you satisfied. Thanks!
Price: 27.59 USD
Location: wuhan
End Time: 2024-11-21T09:14:55.000Z
Shipping Cost: 2 USD
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Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: JOLOOYO
Unit Type: Unit
Custom Bundle: No
MPN: Does Not Apply
Country/Region of Manufacture: China
Unit Quantity: 1
Modified Item: No
